SNAP-PAC-R1
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SNAP-PAC-R1

$1,215.00 (USA and Canada only)

Availability: In stock
SNAP PAC R-series Programmable Automation Controller - On-the-rack - REST API - Analog, full digital, serial

Production Specification

The SNAP-PAC-R1 programmable automation controller provides control, communication, and I/O processing in a compact, rack-mounted package. A versatile controller, the SNAP-PAC-R1 is:

  • fully integrated with PAC Project software, SNAP PAC brains, and SNAP I/O modules;
  • compatible with groov EPIC, either as a SNAP PAC R-series I/O unit to a groov EPIC or to control groov EPIC I/O units (requires PAC Control R10.0a or higher); and
  • can be used as a remote Ethernet I/O unit to custom control applications running on controllers or PCs.

Used with the freely available PAC Project Basic software suite (or PAC Project Professional, purchased separately), the Ethernet-based SNAP-PAC-R1 can handle almost all your industrial control, remote monitoring, and data acquisition needs.

System Architecture
This intelligent, flexible PAC can be used in several ways. The SNAP-PAC-R1 can provide complete cell control on its own rack with I/O modules. It can also control SNAP I/O and groov EPIC I/O units simultaneously for a larger system. Or the R1 can be used in a more extensive distributed control system as a remote I/O unit controlled by a groov EPIC processor or a SNAP PAC S-series controller. It can even be used as intelligent remote I/O for Allen-Bradley Logix PLC systems, such as ControlLogix and MicroLogix.

Networking
Two independent, 10/100 Mbps Ethernet network interfaces are included on each SNAP-PAC-R1. These interfaces have separate IP addresses and can be used to segment the control network from the company network or to provide Ethernet link redundancy in case of link failure or maintenance. In addition, the controller has an RS-232 serial port with hardware handshaking, which can be used for direct connection to serial devices or for PPP (Point-to-Point Protocol) communication over a modem.

Programming and Protocols
The SNAP-PAC-R1 is programmed using the included PAC Control software. PAC Control is a flowchart-based tool for developing control applications (strategies). You create and debug the strategy on your computer and then download it to the R1, where it runs independently. (Processor and memory resources—which affect control application performance—may vary; for more information, see the memory and processor specifications in the Specifications table.)

  • Remote I/O: The SNAP-PAC-R1 supports OptoMMP, Modbus, and EtherNet/IP protocols. For tasks like network addressing and protocol configuration, you can use the freely available PAC Manager tool to configure the R1 over an Ethernet network.
  • REST API & Node-RED: Developers can securely access PAC Control strategy tags using the built-in HTTP/HTTPS server and RESTful API, with data delivered in JSON format. For complete API documentation and steps for getting started, see developer.opto22.com. In addition, two Opto 22 Node-RED nodes are available. Note that minimum firmware R9.5a and PAC Project R9.5a are required to use the REST API.
  • HMI: You can build full-featured operator interfaces (HMIs) using the freely available PAC Display Basic (or PAC Display Professional, purchased separately) software, which taps the same tagname database you've already developed in your PAC Control strategy. SNAP PAC R-series controllers are also compatible with Opto 22's groov products and groov View HMI tool.
  • Communication: Because the SNAP-PAC-R1 is based on the Internet Protocol (IP), the SNAP-PAC-R1 can communicate simultaneously using several different protocols, including TCP/IP, EtherNet/IP, PPP, Modbus/TCP, SNMP for network management, SMTP for emailing, and OptoMMP, the open memory-mapped protocol used by all Opto 22 Ethernet-based devices.

I/O Processing
The controller mounts on a SNAP PAC mounting rack with up to 4, 8, 12, or 16 digital, analog, serial, and special-purpose I/O modules. Choose the modules needed for your application from the extensive line of SNAP I/O modules.

  • Analog features include thermocouple linearization, minimum/maximum values, offset and gain calibration, scaling, ramping, TPO, output clamping, filter weight, and watchdog timer. The SNAP-PAC-R1 also offers up to 96 PID loops.
  • Digital features on 4-channel digital modules include latching, high-speed counting (up to 20 kHz, depending on the module), quadrature counting, pulse generation and measurement, TPO, and watchdog timer. Features on high-density digital modules are more limited (see module data sheet for details).
Compare all SNAP PAC controllers and brains (detailed chart).

Build your system in the SNAP I/O Configurator.

Processor

  • GEN2 edition: 528 MHz 32-bit Single-core Arm Cortex®-A7
  • Earlier edition: 200 MHz 32-bit ColdFire® 5475

Memory

 
  • Total RAM
  • GEN2 edition: 256 MB (approx. 64 MB reserved for PAC Control strategy and approx. 30 MB reserved for file storage)
  • Earlier edition: 16 MB (approx. 5 MB reserved for PAC Control strategy and approx. 2 MB reserved for file storage)
  • Battery-backed RAM
  • 2 MB (approx. 1 MB available for PAC Control strategy)
  • Flash
  • GEN2 edition: 16 MB (approx. 7 MB reserved for PAC Control strategy; approx. 1 MB reserved for file storage)
  • Earlier edition: 8 MB (approx. 3.25 MB reserved for PAC Control strategy; approx. 384 KB reserved for file storage)

Removable storage

  • GEN2 edition: MicroSD card slot supports microSD and microSDHC up to 32 GB; microSDXC cards that have been repartitioned to 32GB or less and reformatted to FAT32.
  • Earlier edition (models with manufacture dates of November 2008 and newer):
    • Firmware R9.4a or higher and loader R6.1a or higher: microSD card slot supports microSD or microSDHC cards to 32 GB.
    • Firmware R8.4 through R9.3e: microSD card slot supports microSD cards up to 2 GB.

Backup battery

Rechargeable (recharges whenever the unit has power):

  • GEN2 edition:  1.5-year power-off data retention
  • Earlier edition: 3-year power-off data retention

Replacement part number: SNAP-PAC-BATTERY-ML24301

Communication

 
  • Ethernet
  • Two independent 10/100 Mbps Ethernet network interfaces (RJ-45 connectors). Each interface has a separate IP address. Connects to host and I/O. Supports Auto MDI-X (crossover cable not needed).
  • RS-232 serial
  • One RS-232 serial port2 with hardware handshaking. Connects to host (via modem and PPP) or serial device. Cannot connect to serial I/O.

I/O unit compatibility

SNAP PAC I/O units: SNAP PAC R-series and EB-series I/O units
groov RIO edge I/O units
groov EPIC I/O units

Power requirements

5.0–5.2 VDC @ 1.5 A

Hold-down screw

Torque: Not to exceed 1 in-lb (0.11 N-m)

Connector screw

Torque: 1.7 in-lb (0.19 N-m)

Environmental
  Operating temperature
  Storage temperature
  Humidity


-20 °C to 60 °C
-40 °C to 85 °C
0% to 95% relative humidity, non-condensing

Software

 
  • PAC Project Basic5
  • Includes programming, HMI, and configuration software; included with purchase of controller.
  • PAC Project Professional5
  • PAC Project Basic features plus OPC DA 2.0-compliant OPC server, database connectivity, OptoControl strategy and OptoDisplay project importing, and support for Ethernet link redundancy or network segmenting.
  • REST API3
  • Use HTTPS to access data (read/write or read-only) from controller tags using your chosen programming language. Data returned in JSON. More information at developer.opto22.com

Number of charts that can run simultaneously

  • GEN2 edition: 32
  • Earlier edition: 16

Agency certifications

DFARS, CE, RoHS, UKCA, UL, ATEX

Warranty

30 months from date of manufacture

Other features

  • Multiple protocol support including TCP/IP, HTTP/HTTPS, FTP, EtherNet/IP, Modbus/TCP, SNMP v2.0c, OptoMMP™, and SMTP
  • Built-in I/O processor handles up to 16 digital4, analog, and serial I/O modules on the same rack
  • Real-time clock
  • FTP server/client with file system (in RAM and removable storage)
  • Scratch Pad area for peer-to-peer communication
  • Configurable link redundancy or segmented networking for I/O-controller subnetting (when using PAC Project Professional)

1 Models manufactured before July 1, 2007 have a user-replaceable 3-volt CR2032 Lithium battery (typical service life with power off: 5 years).
2 Connecting to a serial device requires configuration in PAC Manager; PAC Control handles communication.
3 Requires firmware R9.5a or higher
4 SNAP-PAC-R1s with serial numbers lower than 600,000, and all SNAP-PAC-R1-Bs, are limited to eight 4-channel digital modules per rack; remaining eight can be analog, serial, and high-density digital modules.
5 For the GEN2 edition, use PAC Project R10.0 or higher.

SNAP PAC R-Series Controller Data Sheet

This data sheet describes Opto 22's SNAP PAC R-series programmable automation controllers, part of the SNAP PAC System. A SNAP PAC R-series controller is an on-the-rack, industrially hardened unit that handles multiple control, automation, and data acquisition tasks involving digital and analog control, serial string handling, PID, and enterprise connectivity.

This data sheet covers the following part numbers:

SNAP PAC R-Series Controllers User's Guide

This user's guide shows you how to install and use Opto 22's SNAP PAC R-series programmable automation controllers. SNAP PAC R-series controllers are on-the-rack industrial controllers. Each controller monitors and controls a wide range of devices and equipment wired to the I/O on its own rack and on distributed racks equipped with SNAP PAC EB-series brains. Alternatively, the R-series controller can be used as a slave to a larger groov EPIC edge programmable industrial controller or SNAP PAC S-series standalone industrial controller.

SNAP PAC controllers are programmed with PAC Control Basic or PAC Control Professional, Opto 22's flowchart-based development software, which is part of the PAC Project software suite.

This user's guide covers the following SNAP PACs:

IO4AB User's Guide

This guide provides instructions on how to set up EtherNet/IP messaging between an Allen-Bradley® Logix™ controller and Opto 22’s SNAP PAC I/O using Opto 22’s EtherNet/IP Configurator as well as Allen-Bradley’s RSLogix™ 5000 software.

Legacy Edition, PAC Manager User's Guide

This document is the Legacy Edition of the PAC Manager User's Guide. It includes information about both SNAP PAC hardware and older hardware.

Use this guide if you are using any legacy hardware (SNAP Ultimate, SNAP Ethernet, and SNAP Simple I/O, E1 and E2 brain boards) with PAC Manager (software part number PACMANAGER).

If you are using SNAP PAC controllers and SNAP PAC brains only, use Form 1704, PAC Manager User's Guide instead of this guide.

PAC Manager User's Guide

This guide shows you how to use PAC Manager to assign IP addresses, configure I/O, and inspect and maintain Opto 22 SNAP PAC hardware. PAC Manager is part of the PAC Project Software Suite and also available separately (part number PACMANAGER).

NOTE: If you are using older Opto 22 hardware in addition to SNAP PAC controllers and brains, use the Legacy Edition of this guide, form #1714.

SNAP PAC Controller Comparison Chart

This chart compares details for all SNAP PAC programmable automation controllers: SoftPAC software controller, SNAP PAC S-series standalone controllers, and SNAP PAC R-series rack-mounted controllers.

For additional details on SNAP PAC R-series controllers (including specific I/O processing features), see Form 1677,  SNAP PAC Controller and Brain Comparison Chart.

Using Modbus Devices with Opto 22 Products Technical Note

This technical note introduces the Modbus protocol and gives you basic information for using it to communicate between Opto 22 products and other devices. Because Modbus/TCP and Modbus serial are handled differently by various manufacturers, the tech note describes specific areas that may be a concern and includes troubleshooting suggestions.

SNAP PAC System Specification Guide

This guide is a comprehensive introduction to the SNAP PAC System. The guide describes the system's components (software, controllers, I/O processors, and I/O); shows how to build a basic system and how to expand it; and includes installation instructions, wiring diagrams, dimensional drawings, and specifications for parts.

SNAP PAC Controller and Brain Comparison Chart

This document compares features of SNAP PAC hardware controllers (SNAP PAC S-series and R-series) and SNAP PAC brains, all part of the SNAP PAC System.

NOTE: Due to the unavailability of essential parts, all SNAP PAC brains are obsolete and no longer available. Use rack-mounted controllers instead of Ethernet-based brains. For serial brain options, contact Opto 22 Product Support.

SNAP PAC System Product Guide

This document lists and describes all current Opto 22 SNAP PAC System part numbers, including PAC Project software, SNAP PAC controllers, and SNAP I/O modules of all kinds. SNAP PAC mounting racks and SNAP power supplies are also listed.

SNAP PAC Controllers and Brains Firmware README

This README file lists revision changes made to the firmware used in SNAP PAC S-series, R-series, and SoftPAC controllers; SNAP PAC EB-series and SB-series brains; and G4EB2 and G4D32EB2 brains.

PAC Project Readme Notes

Latest Readme for PAC Project Basic and Professional. Includes information on new features, enhancements, and bug fixes for each PAC Project application: PAC Control, PAC Display, OptoOPCServer, PAC Manager, and Tools.

SNAP PAC I/O Coprocessor Firmware README

This README file lists changes to the I/O coprocessor firmware available in rack-mounted Opto 22 controllers and brains manufactured starting in 2016.

I/O coprocessors can be present in the SNAP PAC R-series controllers, and in SNAP PAC EB-series and SB-series brains. Instructions to find out if your device has an I/O coprocessor are included in this README and in the PAC Manager User's Guide.

NOTE: The following products manufactured with I/O coprocessors have firmware R3.0a; you do not need to update the firmware in these products at this time:

  • SNAP-PAC-EB1
  • SNAP-PAC-EB1-W
  • SNAP-PAC-SB1
  • SNAP-PAC-SB2

SNAP Legacy Firmware README

This README file lists revision changes made to the firmware used in SNAP PAC family controllers before Version 8.0a, the SNAP-LCE controller, and SNAP Ultimate, Ethernet, and Simple brains.

Guide to Networking SNAP PAC Products

Networking can be a complex subject. This guide tries to reduce the complexity by providing guidelines for how you might set up communications between your computer or mobile device and your SNAP PAC control system.

The goal is for you to be able to monitor and control your system from anywhere you need to, either inside your facility or outside it. It's possible to do this because Opto 22 control systems are built on standard protocols such as TCP and UDP over IP, which are the same protocols used by off-the-shelf computers, routers, and the internet.

This guide shows you how to communicate with Opto 22’s SNAP PAC controllers using wired Ethernet networks and wireless LANs, both within your facility and over the internet.

EtherNet/IP for SNAP PAC Protocol Guide

This guide provides detailed descriptions of the EtherNet/IP commands that can be accessed when using remote Opto 22 I/O with an Allen-Bradley controller.

Modbus/TCP Protocol Guide

This document shows you how to set up communication between Ethernet-based Modbus systems (using Modbus/TCP) and the groov EPIC system or SNAP PAC System.

In addition to groov I/O and the SNAP PAC System, the guide also covers Modbus/TCP communication with older Opto 22 Ethernet-based devices, including SNAP Ethernet, SNAP Simple, and SNAP Ultimate I/O; and E1 and E2 brain boards.

OptoMMP Protocol Guide

This guide is for programmers who are writing custom applications to communicate with Opto 22 memory-mapped devices. These devices include groov EPIC processors; groov RIO modules; SNAP PAC controllers and SNAP PAC EB and SB brains; G4EB2 brains; SNAP Ultimate, SNAP Ethernet, and SNAP Simple I/O; E1 and E2 brain boards, and SNAP-LCE controllers.

The guide describes how to use the IEEE 1394-based OptoMMP memory-mapped protocol for programming. The guide also contains the complete memory map for all Opto 22 memory-mapped devices.

NOTE: This guide replaced previous individual programming guides for SNAP Ultimate I/O (form #1312) and SNAP Ethernet I/O (form #1227). This document was formerly called the "SNAP Ethernet-Based I/O Units Protocols and Programming Guide."

SNAP-PAC-R1 (GEN2) in-the-box

A one-page Getting Started guide that comes packed in the box when you purchase a SNAP-PAC-R1 (GEN2). 

Using IEEE Floats in Opto 22 Products

While computers, CPUs, and electronic devices store numbers in binary format, most often they represent real numbers as floating point numbers, or floats. For example, in industrial automation applications, all analog values read from an I/O unit are floats.

This document describes how the IEEE 754 standard for floats is used in Opto 22 products, including groov RIO, groov EPIC, and SNAP PAC systems.

Configuring Email Applications for Opto 22 Products

You can use many Opto 22 products to send email notifications to keep engineers and technicians aware of
important conditions in your system. For example:

  • You can send email through a PAC Control strategy running on a groov EPIC or SNAP PAC controller.
  • Your groov View HMI can send event notifications via email.
  • Your Node-RED flow on groov RIO or groov EPIC can send email.
IMPORTANT: Due to security changes, you will stop receiving emails from your Opto 22 devices unless you
configure your email account with a new application-specific password. This technical note gives you details and steps to configure your account.

Case Study: RDI Controls

View in HTML

Turbine-control experts RDI Controls provided fully engineered retrofit packages to solve a customer's repeated control and maintenance issues at three peaking plants. Common site subsystems had to be integrated into the primary controls, and field wiring needed to remain intact as much as possible. 

Read this case study to see how RDI designed and installed the needed systems quickly and cost effectively. 

UKCA Declaration of Conformity (ATEX, EMC, LVD, RoHS)

This document is the Manufacturer's Declaration of Conformity for the products listed herein, in accordance with the rules, regulations and standards of the United Kingdom. The models cited have been tested to the essential requirements listed in the Standards section, and fully comply with the legislation as listed in UK Legislation section.

Declaration of Conformity (ATEX, EMC, LVD, RoHS)

This document is the Manufacturer's Declaration of Conformity for the products listed herein, in accordance with European, international, and/or national standards and regulations.

Application Brief: Perceptive Controls

Smaller water and wastewater treatment districts often have difficulty funding SCADA systems to monitor their operations as required. In addition, remote and rural equipment sites are much more difficult to connect. Wireless communication can fail due to terrain, while cellular communication can be cost prohibitive.

Recognizing the needs of smaller water and wastewater treatment plant operators, systems integrator Perceptive Controls decided to develop a cloud-based SCADA system to reduce costs and provide operators with the data they need.

Read about the problems involved in building the system and the ways Perceptive Controls approached solutions in this Opto 22 application brief.

Opto 22 announces strategic partnership with IBM and acceptance into the IBM Watson IoT partner ecosystem

Opto 22 announces strategic partnership with IBM and acceptance into the IBM Watson IoT partner ecosystem, providing developers a full stack end-to-end toolset for rapidly developing and deploying industrial IoT applications.

This partnershiip will bridge the gap between existing industrial assets and infrastructure, and the digital world of mobile, cloud, and information technology.

Watch this video and see how to get started. 

 

Connect Real-world Data to an AT&T M2X Device Technical Note

This technical note shows you how to send real-world data, in this example a temperature in degrees F, to an AT&T M2X device in the cloud.

2017 White Paper: State of the IIoT, 2017

The next industrial revolution, the Industrial Internet of Things (IIoT), is happening now. This white paper summarizes the key IIoT trends from 2016, with predictions and recommendations for 2017 on:

- IIoT challenges still to be met
- Standards and architectures that work well for the IIoT
- Platforms to watch; their strengths and weaknesses

Case Study: Hashemite University Solar

The country of Jordan, with few oil resources, imports 96% of its energy needs from neighboring Middle Eastern countries. Starting in 2007, the Jordanian government committed to investing heavily in renewable and nuclear energy.

One of the universities leading the adoption of renewable energy technology is Hashemite University (HU) in Zarqa. This case study shows how FB Group in Amman designed and built a solar farm with enough photovoltaic (PV) capacity to power the entire university.

Connect Industrial Devices to IBM Watson IoT Technical Note

If you've heard about our Opto 22 SNAP PACs with their built-in RESTful API (application program interface), you may be wondering how you'd use that API to send real-world data to the IBM® Watson IoT® platform.

This technical note shows you how, step by step. This technical note is also a blog post on our website.

For more information, see Press Release 2217.

Case Study: Toyo Tanso USA

Toyo Tanso USA manufactures a fine grade of graphite called isotropic graphite, and the company also provides graphite-related silicon carbide surface treatments to customers.

The batch automation process systems used to perform these surface treatments are in a busy, tough industrial setting. The multiple vessels involved in the process each require different specializations and careful management.

To control the vessels, Toyo Tanso needed a rugged control system with plenty of I/O options—and one that could be easily programmed and deployed.

Opto 22 Conecta Digitalmente el IIoT con el Lanzamiento de Nodos de Node-RED para los PAC Industriales

PARA PUBLICACIÓN INMEDIATA: Opto 22 Conecta Digitalmente el IIoT con el Lanzamiento de Nodos de Node-RED para los PAC Industriales

Opto 22 Digitally Wires the IIoT with Release of Node-RED Nodes for Industrial PACs

Opto 22 Digitally Wires the IIoT with Release of Node-RED Nodes for Industrial PACs.

Opto 22 announces immediate availability of Node-RED nodes for its industrial programmable automation controllers (PACs), significantly decreasing Industrial Internet of Things (IIoT) application development time and complexity.

Opto 22 Permite Desarrollo Rápido de Aplicaciones Industriales para la Internet de las Cosas con el Lanzamiento de la API REST para Controladores Programables de Automatización (PACs) In

PARA PUBLICACIÓN INMEDIATA: Opto 22 Permite Desarrollo Rápido de Aplicaciones Industriales para la Internet de las Cosas con el Lanzamiento de la API REST para Controladores Programables de Automatización (PACs) In

Opto 22 Enables Rapid Industrial Internet of Things Application Development With Release of RESTful API to Industrial Programmable Automation Controllers (PACs)

Press release announcing new built-in HTTP/HTTPS server and RESTful API in Opto 22 SNAP PAC standalone and rack-mounted programmable automation controllers.

For complete API documentation and steps to get started, visit developer.opto22.com.

La API de SNAP PAC REST y la Internet de las Cosas para los Profesionales del OT

La API de SNAP PAC REST y la Internet de las Cosas para los Profesionales del OT, SNAP PAC REST API OT Technical Note (Spanish)

SNAP PAC REST API and the Internet of Things - for OT Professionals

We’ve all heard about the Internet of Things (IoT) and its promises: bringing useful data directly to people who make business decisions, and enabling machines to communicate with each other and make decisions for human benefit.

But how does the IoT actually work? How does the data get from inside these physical "things" to computer networks where it can be used?

This technical paper describes that pathway for OT (operational technology) professionals—automation professionals. It describes the kinds of data you may be asked to provide and why. It explains how data from physical "things"—especially existing sensors and actuators that have no IoT capabilities built in—can be securely communicated to company computer networks, without disturbing control networks.

The paper also explains concepts important to any IoT strategy, like encryption and authentication, and introduces a new method to achieve the IoT results you need now, without requiring a complex chain of conversion hardware and software.

Learn about the REST API and the IoT from an information technology (IT) professional's standpoint in the companion tech note, SNAP PAC REST API and the Internet of Things - for IT Professionals.

La API de SNAP PAC REST y la Internet de las Cosas para los Profesionales de IT

La API de SNAP PAC REST y la Internet de las Cosas para los Profesionales de IT - SNAP PAC REST API IT Technical Note (Spanish)

SNAP PAC REST API and the Internet of Things - for IT Professionals

We’ve all heard about the Internet of Things (IoT) and its promises: bringing useful data directly to people who make business decisions, and enabling machines to communicate with each other and make decisions for human benefit.

But how does the IoT actually work? How does the data get from inside these machines to computer networks where we can use it?

This technical paper describes that pathway for IT (information technology) professionals, explaining how physical "things" communicate, what kinds of data in them might be useful, and the current barriers to getting that data—especially from existing sensors and devices that have no IoT capabilities built in.

The paper also describes a new method to cut through those barriers and achieve the IoT results you want now.

Learn about the REST API and the IoT from an automation professional's standpoint in the companion tech note, SNAP PAC REST API and the Internet of Things - for OT Professionals.

Tutorial de Computacion en el Borde

2184S Tutorial de Computacion en el Borde (Spanish Edge Computing Primer - Spanish)

Su Tutorial de la IoT: Reduciendo la brecha entre OT y IT

Su Tutorial de la IoT: Reduciendo la brecha entre OT y IT

Your IoT Primer: Bridge the Gap between OT and IT

You've probably heard about the Internet of Things (IoT). But what is it, and how will it affect our businesses?

This primer helps you understand the IoT and the significant challenges we face to realize its benefits.

The primer defines operational technology (OT) and information technology (IT), and shows how they are converging and why. It defines IoT technologies and suggests 3 steps you can take to develop an effective and profitable IoT strategy.

Opto 22 Integrates Custom Applications with SNAP PAC Control Systems

Press release: Opto 22 Integrates Custom Applications with SNAP PAC Control Systems with Opto 22 .NET Controller Software Development Kit (SDK) for SNAP PAC.
 

Case Study: Pioneer Energy

Watch the Pioneer Energy case study video.

What's in North Dakota that's as bright as the city of Chicago in the nighttime sky? It's flare gas from oil fields, a waste stream going up in smoke.

Pioneer Energy is changing that waste into resources, with their Mobile Alkane Gas Separator (MAGS). Mounted on a trailer, the complete system can be trucked to a well site, installed in 24 hours, and remotely monitored.

This case study explains how the system processes flare gas and how it is controlled and monitored.

Using microSD with Older Controller Firmware Technical Note

SNAP PAC controllers manufactured in November 2008 and later have a microSD card slot in the top of the controller’s case.

Behavior for the microSD card has changed since the first release. This technical note describes behavior with controller firmware versions older than 9.0.

If you are running controller firmware 9.0 or newer, use instructions in the controller user’s guide; do not use this technical note.

Replacing the SNAP PAC Rechargeable Battery Technical Note

Several SNAP PAC controllers and brains contain a rechargeable backup battery. The battery recharges whenever the brain has power and retains data for an extended period of time with the power off.

You should never have to replace this battery, but if you do, this technical note shows you how.

Quick Guide: Troubleshooting Info from SNAP PAC Systems

This technical note provides a quick guide about diagnostic files to collect and send in to Opto 22 Product Support for analysis when troubleshooting a SNAP PAC System.

Communication Tools & Protocols for Opto 22 Products Technical Note

This technical note describes the networking tools and protocols that are compatible with Opto 22 products for communication with a wide variety of software and systems.

Case Study: Automated Interface Solutions

Systems integrator Automated Interface Solutions (AIS) used the SNAP PAC System to solve a problem for one of its large customers, a manufacturer of polypropylene film.

Part of the company’s manufacturing process used older Measurex and Foxboro systems, tied by custom software to an Allen-Bradley® ControlLogix® PLC. Parts were becoming difficult to get and the custom software was expensive to change.

AIS installed the SNAP PAC System to replace the older hardware. Opto 22 PACs communicate natively with Allen-Bradley PLCs using the EtherNet/IP protocol. AIS worked with its customer to define all of the process control data it wanted the A-B system to have access to, and then made that data available within the shared memory of the Opto 22 PACs.

In addition, the SNAP PAC System sends data via OPC to the company’s Wonderware® Intouch® HMI, which displays real-time information on scanners, indicates die bolt positions (on or off), roll lengths and averages, and other statistics. Data transfer is accomplished via OPC, and more than 6,400 I/O tags are passed through to the HMI without issue.

Case Study: Bureau of Reclamation

The U.S. Bureau of Reclamation constructs dams, power plants, and canals, and delivers water to more than 31 million Americans. The Bureau also operates the Leadville Mine Drainage Tunnel (LMDT), which drains off and treats water from the local mining district so it can be safely discharged into the Arkansas River.

At the LMDT, the Opto 22 SNAP PAC System is used to monitor water levels, remove metals, adjust the water’s pH, reduce water turbidity, and otherwise treat the water before releasing it—cleaner even than everyday drinking water. More than 2500 I/O points are monitored, controlled, and alarmed.

Case Study: University of California, Irvine

At the University of California, Irvine, Scientist Dr. John Garman and a team of his engineering students use an Opto 22 SNAP PAC System in their research of coal and biomass combustion. The SNAP PAC hardware controls the coal feed rate into an entrained flow reactor, monitors thermocouples that feed back process control data, monitors emissions, and acquires and logs data on operating conditions within the reactor.

Updating the Loader on a SNAP Device

It is rarely necessary to update the loader in a SNAP PAC controller or brain, but if you need to, this document shows you how. If you have questions, contact Opto 22 Product Support.

EtherNet/IP Implementation in SNAP PAC Products

This technical note summarizes EtherNet/IP technology and how SNAP PAC devices can be integrated into an EtherNet/IP environment to send data to EtherNet/IP enabled devices such as Allen-Bradley PLCs.

Software for Programmable Automation Controllers (Chinese)

This document is written in Chinese.

This white paper explores some important features of programming software for a programmable automation controller (PAC).

For additional white papers on PACs, see About PACs.

Software for Programmable Automation Controllers

This white paper explores some important features of programming software for a programmable automation controller (PAC).

For additional white papers on PACs, see About PACs.

Considerations for Choosing a Programmable Automation Controller (PAC)

This white paper compares programmable automation controllers (PACs) with other automation technologies and suggests several considerations to keep in mind when choosing PACs for your industrial control or monitoring application.

For additional white papers on PACs, see About PACs.

6 Razones Para Considerar el Sistema SNAP PAC

Este documento corto sugiere seis razones porqué debe de considerar el Sistema SNAP PAC para su siguiente proyecto de automatización.

6 Reasons to Consider the SNAP PAC System for Your Next Project

This short document suggests six reasons why you should consider the SNAP PAC System for your next automation project.

Caso: Henkel Capital México (Spanish)

Caso sobre la automización de una empresa de adhesivos en la ciudad de Salamanca, Guanajuato, México. (Case study of how an adhesives manufacturer in Salamanca, Guanajuato, México, was automated.)

Opto 22 RoHS 3 Statement of Compliance - Restriction of Hazardous Substances

This document is a statement of compliance with the EU Directive 2015/863/EU, Restriction of Hazardous Substances (RoHS 3). This document lists Opto 22 products that comply with the substance restrictions of the RoHS 3 directive.

SNAP PAC Memory Usage Technical Note

This technical note shows how SNAP PAC memory, both volatile and non-volatile, is used. It compares memory available in the standalone SNAP PAC S-series, on-the-rack SNAP PAC R-series, and software-based SoftPAC controllers, and it also shows differences between wired Ethernet PACs and Wired+Wireless™ PACs.

Understanding Programmable Automation Controllers (PACs) in Industrial Automation (Chinese)

NOTE: This document is written in Chinese.

This white paper describes the advent of the programmable automation controller (PAC) and its use in modern industrial applications.

For additional white papers on PACs, see the Guide to PACs.

Understanding Programmable Automation Controllers (PACs) in Industrial Automation

This white paper describes the advent of the programmable automation controller (PAC) and its use in modern industrial applications.

For additional white papers on PACs, see the Guide to PACs.

Simplified IP Addressing

This technical note introduces you to IP addressing on an Ethernet network.

Technical Note: Using Offset and Gain

This technical note shows you how to set offset and gain for Opto 22 analog input modules.

Comparison of PLCs and Ladder Logic with Opto 22 Hardware and Software

Opto 22 controllers like the groov EPIC edge programmable industrial controller and SNAP PACs (programmable automation controllers) are fundamentally different from PLCs (programmable logic controllers). This technical note explains the differences and compares automation systems built with them, in terms of efficiency, scalability, capabilities, programming, and cost.   

UL Approval Document

This document lists all Opto 22 part numbers that have the Underwriters Laboratory (UL) approval.

CE Declaration: Component

This document is the Manufacturer's Declaration for the listed products as mentioned in the attachment - to which this confirmation refers - that they are in accordance with the mentioned European, international and/or national standards and regulations.

CE Declaration: Low Voltage

This document is the Manufacturer's Declaration for the listed products as mentioned in the attachment - to which this confirmation refers - that they are in accordance with the mentioned European, international and/or national standards and regulations.

Firmware for all SNAP PAC products

Firmware for all SNAP PAC products (single download).

See the README document for information on changes and fixes in the current version of this product's firmware.


Selecting the Correct Version of PAC Manager to Install Firmware


To install firmware, use the most recent release of PAC Manager (you can download the latest version from the Opto 22 website). Older versions of PAC Manager cannot install certain levels of firmware on controllers and brains shipped after certain dates or with certain versions of firmware currently installed on them. The following sections explain which versions of PAC Manager can install which versions of firmware for the indicated hardware.

 

SNAP PAC R-series Controllers


Some SNAP-PAC-R1 controllers shipped after August 26, 2024 require firmware R10.5g (or higher) and new bootloader firmware. For instructions on identifying these controllers, review the README document.

SNAP R-series controllers shipped after February 22, 2022 shipped with new Ethernet components, PAC firmware R10.4d (or higher), and new bootloader firmware. For more information about minimum firmware requirements and installation requirements, review the README document.

SNAP R-series controllers shipped after April 2, 2018 shipped with new flash components, PAC firmware R9.5g (or higher), and new bootloader firmware. Lower versions of firmware are not compatible with these controllers. For instructions on recovering controllers that are accidentally installed with lower versions of firmware, review the README document.

 

SNAP PAC S-series Controllers


SNAP S-series controllers shipped after February 22, 2022 shipped with new Ethernet components, PAC firmware R10.4d (or higher), and new bootloader firmware. For more information about minimum firmware requirements and installation requirements, review the README document.

SNAP S-series controllers shipped after April 2, 2018 shipped with new flash components, PAC firmware R9.5g (or higher), and new bootloader firmware. Lower versions of firmware are not compatible with these controllers. For instructions on recovering controllers that are accidentally installed with lower versions of firmware, review the README document.

 

SNAP PAC Ethernet and Serial Brains


Some EB and SB brains shipped after April 2, 2018 shipped with new flash components, PAC firmware R9.5g (or higher), and new bootloader firmware. Lower versions of firmware are not compatible with these controllers. For instructions on recovering controllers that are accidentally installed with lower versions of firmware, review the README document.

 

SoftPAC


For SoftPAC firmware version R9.4c (or lower): To upgrade to firmware version R9.5a (or higher), you must install SoftPAC from the PAC Project installation file to update SoftPAC Monitor, then you can update the firmware. For instructions, see KB86020.

SNAP PAC I/O Coprocessor Firmware (Single Download)

I/O coprocessor firmware for rack-mounted SNAP PAC controllers and brains (single download).


Not all rack-mounted Opto 22 products have an I/O coprocessor. 
See the SNAP PAC I/O Coprocessor Firmware README for instructions to find out if your device has an I/O coprocessor.

This zip file contains a README file and updates (.bin files) for SNAP PAC products with an I/O coprocessor:

  • SNAP-PAC-R1, -R1-W, and R1-B controllers
  • SNAP-PAC-R2 and -R2-W controllers
  • SNAP-PAC-EB1 and -EB1-W brains
  • SNAP-PAC-EB2 and -EB2-W brains
  • SNAP-PAC-SB1 and -SB2 brains

You must download and unzip this file to access the specific firmware file for your Opto 22 controller or brain.

SNAP PAC R-Series Controller Bootloader

This download contains special firmware that upgrades the controller bootloader (or "loader") in SNAP PAC R-series controllers.

Starting in April 2018, some R1, R1-FM, R1-B, and R2-series controllers include a new flash component. These units have a hardware revision date of April 2, 2018 (or newer) and require bootloader R6.2c (or higher).

For details, see Opto 22 KB article KB87213.

Previous Loaders

See KB83929, Updating SNAP PAC Controllers to use microSDHC Cards on the Opto 22 website for important information on using the loader with SNAP PAC controllers.

SNAP-PAC-R1 Controller Firmware

This download contains a zip file with current firmware for the SNAP-PAC-R1 (including the GEN2 edition), SNAP-PAC-R1-B, and SNAP-PAC-R1-FM controllers.

There are two firmware files for SNAP-PAC-R1. To determine which SNAP-PAC-R1 firmware file to install on your controller, you must first determine if you have a GEN2 controller by using one of the following methods:

  • Look for "GEN2" on the top of the controller.
  • Use PAC Manager to find the Installed Ram value:
    1. In PAC Manager, click Tools > Inspect, or click the Inspect button.
    2. In the Inspect Opto 22 Device window, enter the IP address for the SNAP-PAC-R1 controller, or select it from the Device Name list.
    3. Look for the Installed Ram value. If the value is 268435456, you have a GEN2 controller.

If you have a GEN2 controller, install the firmware file called snap-pac-r1-gen2-R10.5g.bin using PAC Manager R10.5c (or higher).

For all other SNAP-PAC-R1 controllers, install the snap-pac-r1-R10.5g.bin firmware file.

Current firmware for all SNAP PAC brains and controllers is available in a single download here.

See the README document for information on changes and fixes in the current version of this product's firmware.

To install firmware, use the most recent release of PAC Manager (you can download the latest version from the Opto 22 website). Older versions of PAC Manager cannot install certain levels of firmware on controllers and brains shipped after certain dates or with certain versions of firmware currently installed on them.

Some SNAP-PAC-R1 controllers shipped after August 26, 2024 require firmware R10.5g (or higher) and new bootloader firmware. For instructions on identifying these controllers (referred to as GEN2), review the README document.

SNAP R-series controllers shipped after February 22, 2022 shipped with new Ethernet components, PAC firmware R10.4d (or higher), and new bootloader firmware. For more information about minimum firmware requirements and installation requirements, review the README document.

SNAP R-series controllers shipped after April 2, 2018 shipped with new flash components, PAC firmware R9.5g (or higher), and new bootloader firmware. Lower versions of firmware are not compatible with these controllers. For instructions on recovering controllers that are accidentally installed with lower versions of firmware, review the README document.


CAD 3D Drawing: SNAP-PAC-R1 Rack-mounted Controller

This CAD file contains a 3-dimensional drawing of the SNAP-PAC-R1 rack-mounted programmable automation controller with high-speed digital functions. 

CAD Drawing: SNAP-PAC-R1/R2 On-the-rack Controllers

This CAD file includes drawings of the SNAP-PAC-R1 and SNAP-PAC-R2 programmable automation controllers. Both are rack-mounted controllers and I/O processors.

Allen-Bradley DF1 Integration Kit for ioControl

The Allen-Bradley DF1 Integration Kit provides users of Opto 22’s ioControl software (version 6.0 and above) an easy method of communicating with Allen-Bradley drivers or PLCs using the DF1 protocol. Opto 22 controllers can act as either a “master” or a “slave” device. They can be connected directly to the serial port on an Allen-Bradley PLC or to Data Highway networks using standard Data Highway interface devices.

Controller Time Synchronization Application

This software application updates the internal clock for an Ethernet-connected Opto 22 controller. The application runs in Windows at the command prompt, and can update controller clocks regularly or just once.

This application is used with the following Opto 22 controllers:

  • SNAP PAC S- and R-Series
  • Ultimate I/O (UIO)
  • SNAP-LCE
  • SNAP-LCM4
  • M4
  • M4RTU
  • M4IO
This download is freeware. Before downloading, read the Legal Agreement.

Security Certificates

Current security certificates are embedded in the firmware for Opto 22 products. If you are using recent firmware or can update your device to current firmware, you do not need any of these certificates. If you cannot update firmware, then you can apply a certificate from this zip file as needed.

Before you download, read the Legal Agreement.

This zip file contains the following certificates:

  • DigiCert High Assurance EV Root CA (DigiCert.der) - Valid from 11/9/2006 to 11/9/2031
  • GeoTrust Primary Certification Authority (GeoTrustPCS.crt) - Valid from 11/26/2006 to 7/16/2036
  • GlobalSign Root CA (GSR1.crt) - Valid from 9/1/1998 to 1/28/2028
  • GTS Root R1 (gtsr1.der) - Valid from 6/21/2016 to 6/21/2036
  • GTS Root R2 (gtsr2.der) - Valid from 6/21/2016 to 6/21/2036
Certificate installation instructions are located here: Background information

A valid security certificate may be required by mail servers to allow you to send emails from your Opto 22 products, for example, through: 
  • a PAC Control strategy running on a groov EPIC or SNAP PAC controller
  • a groov View HMI sending event notifications
  • a Node-RED flow on groov RIO or groov EPIC
Valid security certificates may also be required by other services you may be using via software on your Opto 22 device (for example, using Node-RED to move data in and out of Google Sheets).

All providers of email or other services update their security certificates from time to time. When that happens, your email or other service will stop working until you either install a new certificate or update firmware that contains the new certificate. Make sure you set up error handling procedures or other ways to verify that services are working. 

Opto 22 updates certificates as soon as we know about new ones. If you see a security error (for example, -2104 in PAC Control) or have some other indication of a certificate issue, be sure to check for new firmware or download this zip file. If you need help, contact Opto 22 Product Support.

SNAP PAC RESTful API to Access Database Example

This download is an interactive Access database sample that builds commands to read data from an Opto 22 SNAP PAC programmable automation controller and store the data in a Microsoft Access table.

The download includes all files needed and a technical note documenting the sample. Before you download, read the Legal Agreement.

Watch the video below for an introduction to the samples.

 

SNAP PAC RESTful API to Excel Spreadsheet Example

This download contains sample spreadsheets you can use to read from and write to an Opto 22 SNAP PAC programmable automation controller via the PAC’s RESTful API. In this way you can securely share I/O point and variable data in your SNAP PAC controller with an Excel spreadsheet.

The download includes all files needed and a technical note documenting the samples. Before you download, read the Legal Agreement.

Watch the video below for an introduction to the samples.

 

Video: SNAP PAC RESTful API to MS Excel

Click here to download the Excel example 
What does the new built-in RESTful API in Opto 22 SNAP PAC S-series and R-series programmable automation controllers mean to you? It means you can use a variety of programming languages to easily access data in the PAC.

Data includes I/O point information plus variables in your PAC Control strategy. Using the REST API and HTTPS server in the PAC, you can securely share data with a wide variety of software applications, devices, and online services.

Video: SNAP PAC RESTful API to MS Access

Click here to download the Access example.
What does the new built-in RESTful API in Opto 22 SNAP PAC S-series and R-series programmable automation controllers mean to you? It means you can use a variety of programming languages to easily access data in the PAC.
Data includes I/O point information plus variables in your PAC Control strategy. Using the REST API and HTTPS server in the PAC, you can securely share data with a wide variety of software applications, devices, and online services.

Video: SNAP PAC System Overview

This overview describes the four integrated components of the SNAP PAC system: software, controllers, brains and I/O. This hardware and software system is designed for industrial control, remote monitoring and data acquisition.

Video: SNAP PAC R Series Controllers

A quick overview of SNAP PAC R-series controllers.

Video: Controllers: SNAP-PAC-R1 vs. -R2

A quick overview of SNAP-PAC-R1 vs -R2 controllers.

Video: Dual Ethernet Interfaces: Controllers vs. Brains

A quick overview of Dual Ethernet Interfaces: Controllers vs. Brains.

Video: EtherNet-IP for SNAP I/O

Sr. Systems Engineer James Davis demonstrates Configuring EtherNet/IP so A-B PLCs can use intelligent remote SNAP I/O. More info: IO4AB

Video: Using SNAP PAC System with Ethernet/ IP

A quick overview of how any device using the EtherNet/IP protocol from Allen-Bradley can communicate with Opto 22 SNAP PAC controllers and brains. More info: IO4AB

Video: Webinar: Controller Redundancy in PAC Control 9

Learn how to implement controller redundancy in SNAP PAC systems.

Playlist: Automation 101

Learn the basics about automation in these videos.

PID: Reaction Curve Tuning for Interactive PID algorithms

Tune your real-world PID control loop with this graphical tuner. Plug in your data and get calculated P, I, and D values, plus scan rate.

SNAP PAC Networking

Learn the basics about dual ports, redundancy, segmenting, and daisy chaining of SNAP-PAC networking in this interactive demo.

What is a PAC?

Learn all about Programmable Automation Controllers (PACs) including the history of the term PAC, PAC features, and Opto 22 PACs.