SNAP-PAC-S2
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SNAP-PAC-S2

$1,920.00 (USA and Canada only)

Availability: In stock
SNAP PAC S-series Programmable Automation Controller with Four Serial Ports

Production Specification

Now developer and IoT ready with a built-in HTTP/HTTPS server and RESTful API. See Programming, below.

** Compatible with groov EPIC. You can control groov EPIC I/O units with a SNAP PAC S-series controller running PAC Control R10.a or higher. **

The SNAP-PAC-S2 programmable automation controller provides powerful, real-time control and communications to meet your industrial control, monitoring, and data acquisition needs.

Part of Opto 22's S-series family of industrial controllers, the SNAP-PAC-S2 is fully integrated with PAC Project software, SNAP PAC I/O processors, and SNAP I/O modules to form a complete control system. The SNAP PAC System includes digital and analog control, serial string handling, PID loops, and enterprise connectivity.

Programming
The SNAP-PAC-S2 is programmed using the included PAC Control software. PAC Control is a flowchart-based tool for developing control applications, or strategies. You create and debug the strategy on your computer and then download it to the PAC, where it runs independently.

REST API: All I/O point and strategy variable data is available for secure access using the built-in 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 Node-RED nodes are available. Note that minimum firmware R9.5a and PAC Project R9.5a are required to use the REST API.

You can build full-featured operator interfaces (HMIs) using the included PAC Display software, which taps the same tagname database you've already developed in PAC Control. SNAP PAC S-series controllers are also compatible with Opto 22's groov products and groov View HMI tool.

Networking
The controller is compact and industrially hardened. It includes two independent Ethernet network interfaces with separate IP addresses, which can be used to segment the control network from the company network or for redundant Ethernet network links.

The SNAP-PAC-S2 controller is well suited for use with serial-based I/O units and serial devices. The SNAP-PAC-S2 has four serial ports that can be individually configured as either RS-232 or RS-485 (2-wire or 4-wire). Configured as RS-232, serial ports support serial device communication or a Point-to-Point Protocol (PPP) modem connection for creating a TCP/IP network over PSTN (Public Switched Telephone Network) lines. Configured as RS-485, serial ports connect to SNAP PAC Serial brains or to legacy Opto 22 mistic™ I/O units, including the serial B3000 brain and remote mistic bricks. (Note: If you are using the S2 with misticI/O units, use the legacy versions of the PAC Control, PAC Display, and PAC Manager guides.)

The SNAP-PAC-S2 can be panel or DIN-rail mounted. For DIN rail, see the SNAP-S2DIN DIN-rail mounting kit.

If you need fewer serial ports, see the SNAP-PAC-S1.
To compare controller features, see the SNAP PAC Controller and Brain Comparison Chart.

For more details, see the Specifications tab and the Data Sheet.

Processor

266 MHz 32-bit ColdFire® 5475 with integrated floating-point unit (FPU)

Memory

SNAP-PAC-S1 and SNAP-PAC-S2
  Total RAM: 32 MB
  Total RAM for PAC Control Strategies: 16 MB
  Battery-backed RAM: 8 MB
  RAM File Storage: 2.5 MB
  Flash File Storage: 4 MB

Removable storage

(Models with manufacture dates of June 2014 and newer. Requires firmware R9.4a or higher and loader R6.1a or higher) MicroSD card slot: supports microSD or microSDHC cards to 32 GB.
(Models with manufacture dates of November 2008 through May 2014 with firmware R8.4 or higher) McroSD card slot: supports microSD cards up to 2 GB.

Backup battery

SNAP-PAC-S1s with serial number 625654 or higher and all SNAP-PAC-S2s: Rechargeable (recharges whenever the brain has power), 1-year power-off data retention (replacement part number: SNAP-PAC-BATTERY-ML2430).
SNAP-PAC-S1s with serial number 625653 or lower: User-replaceable 3.6-volt TL 5242 /W lithium, 10-year minimum power-off data retention (replacement part number: G4BATT32)

Ethernet Communication to host and I/O

Two independent 10/100 Mbps Ethernet network interfaces (RJ-45 connec­tors). Each interface has a separate IP address (separate subnet). Supports Auto MDI-X (crossover cable not needed).

Serial Communication

SNAP-PAC-S1
RS-232 serial: Two RS-232 serial ports (one DB-9 and one pluggable connector); one port has full handshaking. PPP is supported only on port 0. Buffer size: 512 bytes each for RX and TX.
RS-485 serial: One RS-485 serial port (pluggable connector); two-wire RS-485; optional mistic signal interrupts. Range (serial multidrop): 32 stations maximum on a segment (including PC, controller, and I/O units); up to 3000 ft (914 m) on a segment. Buffer size: 512 bytes each for RX and TX.

SNAP-PAC-S2
Four serial ports that can be used as general purpose ports or for serial I/O units; each port is software configurable as either RS-232 (Tx, Rx, COM, DTR, DCD, RTS, CTS) or as RS-485 (2-wire, 4-wire, optional termination, optional biasing); optional mistic signal interrupts. Buffer size: 512 bytes each for RX and TX.

Power requirements

8–32 VDC ±0.5, 11.3 VA maximum
(SNAP-PAC-S1 controllers with serial numbers below 500,000 use 8–24 VDC)

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 Basic

 PAC Project Professional

 REST API

 


Includes programming, HMI software, and configuration software; included with purchase of controller.
PAC Project Basic plus OPC 2.0-compliant OPC server, OptoControl strategy and OptoDisplay project importing, support for serial mistic I/O units, and Ethernet link redundancy support.
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

32

Other features

Multiple protocol support including TCP/IP, FTP, SNMP v2.0c (with firmware 8.2a), Modbus/TCP, EtherNet/IP™, and OptoMMP™.
Real-time clock
FTP server/client with file system (in RAM and in removable storage)
Ethernet link redundancy or network segmenting

Agency certifications

All models: CE, RoHS, DFARS; UKCA

Warranty

30 months from date of manufacture

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.

Legacy and Current SNAP Product Comparison and Compatibility Charts

This document compares SNAP PAC System hardware and software with legacy Opto 22 SNAP systems and provides compatibility information in a series of detailed charts.

If you're combining SNAP PAC System components with older SNAP hardware and software, see Form #1688, the SNAP PAC System Migration Technical Note.

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 S-Series Controllers Data Sheet

This data sheet describes Opto 22's SNAP PAC S-series programmable automation controllers. SNAP PAC S-series controllers are standalone industrial controllers that are used as part of an Opto 22 SNAP PAC System.

This data sheet covers the following part numbers:

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.

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.

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.

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.

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.

SNAP PAC S-Series Controllers User's Guide

This user's guide shows you how to install and use Opto 22's SNAP PAC S-series programmable automation controllers. SNAP PAC S-series controllers are one of four components of the SNAP PAC System. These controllers work with PAC Project software, SNAP PAC brains, and SNAP I/O modules to form an easy-to-use system for remote monitoring, industrial control, and data acquisition.

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 part numbers:

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."

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.

UKCA Declaration of Conformity (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 (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.

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

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.
 

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.

Case Study: Natural Gas Fueling Stations Communications

In recent years, environmental benefits, improvements in automotive engine design, and the lower production cost of natural gas (compared to heavy diesel fuel) have made use of natural gas vehicles (NGVs) more attractive and cost feasible—particularly for public transportation. One of the other advantages of NGVs is that they can be refueled simply by tapping into existing natural gas lines. The Madrid city government has invested $47 million dollars in a custom refueling station and parking depot for 300 natural gas powered buses in the Sanchinarro area of Madrid.

An Ethernet-based industrial automation, data acquisition, and communications system—based on Opto 22’s SNAP PAC platform and implemented by Spanish integrator Optomation Systems—serves as the communications backbone that keeps the Sanchinarro station operating efficiently. The system employs a number of industrial and IT protocols, including FTP, SNMP, OPC, Modbus/TCP, and M-Bus to communicate more than 600 different data values to and from the Sanchinarro station’s equipment, systems, and external databases.

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: Sotavento Power Plant (Chinese)

This document is in Chinese.

The Sotavento Virtual Power Plant in Galicia, Spain, is a "green" power utility with an annual production of approximately 38,500 MWh. The plant uses alternative fuels, specifically wind power, supplemented by hydrogen. At the Sotavento plant, Opto 22's SNAP PAC System provides a solution for not only automation and control, but also data acquisition, enterprise connectivity, and communication to databases.

Systems integrator Optomation Systems designed an integrated supervisory system for the Sotavento site, based on the Opto 22 SNAP PAC System platform. Utilizing a mix of analog and digital I/O connections, standalone and rack-mounted SNAP PACs connect to electrolyzers, motor generator units, and other plant systems and communicate with this equipment as well as with the plant's legacy SCADA systems. Disparate machinery and instrumentation from vendors such as Hydrogenics, Emerson, and Bauer Compressors are linked to the Opto controllers, which communicate using a variety of industrial protocols, such as Profibus and Modbus. The controllers also aggregate all data and serve it to Sotavento databases for analysis and archiving.

Case Study: Sotavento Power Plant

The Sotavento Virtual Power Plant in Galicia, Spain, is a "green" power utility with an annual production of approximately 38,500 MWh. The plant uses alternative fuels, specifically wind power, supplemented by hydrogen. At the Sotavento plant, Opto 22's SNAP PAC System provides a solution for not only automation and control, but also data acquisition, enterprise connectivity, and communication to databases.

Systems integrator Optomation Systems designed an integrated supervisory system for the Sotavento site, based on the Opto 22 SNAP PAC System platform. Utilizing a mix of analog and digital I/O connections, standalone and rack-mounted SNAP PACs connect to electrolyzers, motor generator units, and other plant systems and communicate with this equipment as well as with the plant's legacy SCADA systems. Disparate machinery and instrumentation from vendors such as Hydrogenics, Emerson, and Bauer Compressors are linked to the Opto controllers, which communicate using a variety of industrial protocols, such as Profibus and Modbus. The controllers also aggregate all data and serve it to Sotavento databases for analysis and archiving.

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.

SNAP-S2DIN Installation Note

This note shows you how to install the SNAP-S2DIN DIN-rail mounting clip on a SNAP-PAC-S2 controller.

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.

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.

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.   

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.


NOTE: Opto 22 recommends that you always use the most recent release of PAC Manager. Depending on the shipment date or the version number of the firmware currently installed on your SNAP-PAC-R or SNAP-PAC-S controller, older versions of PAC Manager cannot install certain levels of firmware:
  • As of February 22, 2022, some SNAP-PAC-R and SNAP-PAC-S controllers ship with new Ethernet components, along with PAC Firmware R10.4d (or higher) and new bootloader firmware to support the new components. PAC Firmware R10.4d (or higher) will not permit installing firmware lower than R10.4d on these controllers. To update firmware on these controllers, you need PAC Manager R10.4c or higher.
  • Effective April 2, 2018, some SNAP PAC controllers and brains have new flash components. These units shipped with firmware R9.5g (or higher) and new bootloader firmware. PAC firmware versions R9.5f and lower are not compatible with the new component. If you inadvertently install firmware R9.5f or lower on one of these units, you can recover by using the Failsafe Bootloader Mode to install firmware R9.5g or higher.
    • For more information about the new flash component, see KB87213.
    • For details on Failsafe Bootloader Mode, see "Replacing Damaged Firmware" in the PAC Manager User's Guide (form 1704).
  • To install PAC firmware R9.2c or higher on the following controllers only, use PAC Manager R10.4b (or higher), installed by either PAC Project 10.4002 or build 7 of the PAC Manager R10.4b installer. Wireless versions are not affected by this issue:
    • SNAP-PAC-R1
    • SNAP-PAC-R1-B
    • SNAP-PAC-R2

SNAP PAC S-Series Controller Bootloader

This download contains special firmware for the SNAP PAC S-Series controllers that upgrades the controller bootloader (or "loader").

Beginning with R6.1b, the loader upgrades newer SNAP PAC controllers to allow the use of high-capacity (up to 32 GB) microSDHC cards. SNAP PAC R9.4a (or higher) firmware must also be installed with the R6.1b (or higher) loader to obtain microSDHC card support.

SNAP-PAC-S2 Controller Firmware

This download contains current firmware for the SNAP-PAC-S2 controller. Current firmware for all SNAP PAC brains and controllers is available in a single download here.


NOTE: Opto 22 recommends that you always use the most recent release of PAC Manager. Depending on the shipment date or the version number of the firmware currently installed on your SNAP-PAC-S controller, older versions of PAC Manager cannot install certain levels of firmware:
  • As of February 22, 2022, some SNAP-PAC-S controllers ship with new Ethernet components, along with PAC Firmware R10.4d (or higher) and new bootloader firmware to support the new components. PAC Firmware R10.4d (or higher) will not permit installing firmware lower than R10.4d on these controllers. To update firmware on these controllers, you need PAC Manager R10.4b or higher, installed by one of these methods:
    • PAC Project 10.4002 or higher
    • Build 7 of the R10.4b PAC Manager installer (or higher), identifiable by the file name PAC_Manager_R10.4b-7.exe. If you are not sure that PAC Manager was installed by build 7 of the installer, you can find the installer version number by clicking Control Panel > Programs (or Programs and Features), then scrolling down the list of programs until you find “Opto22 PAC Manager”. Next to it, it should say “R10.4b build 7”.
  • Effective April 2, 2018, some SNAP PAC controllers and brains have new flash components. These units shipped with firmware R9.5g (or higher) and new bootloader firmware. PAC firmware versions R9.5f and lower are not compatible with the new component. If you inadvertently install firmware R9.5f or lower on one of these units, you can recover by using the Failsafe Bootloader Mode to install firmware R9.5g or higher.
    • For more information about the new flash component, see KB87213.
    • For details on Failsafe Bootloader Mode, see "Replacing Damaged Firmware" in the PAC Manager User's Guide (form 1704).

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

CAD 3D Drawing: SNAP-PAC-S2 Standalone Controller

This CAD file contains a 3-dimensional drawing of the SNAP-PAC-S2 standalone programmable automation controller.

CAD Drawing: SNAP-PAC-S2 Standalone Industrial Controller

This CAD file includes drawings of the SNAP-PAC-S2 programmable automation controller, a standalone industrial controller.

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 S Series Controllers

A quick overview of SNAP PAC S-series controllers.

Video: Controllers: SNAP-PAC-S1 vs. -S2

A quick overview of the differences between the SNAP-PAC-S1 and the SNAP-PAC-S2.

Video: Dual Ethernet Interfaces: Controllers vs. Brains

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

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

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.