Availability: In stock
OBSOLETE Wired+Wireless SNAP PAC R-series Programmable Automation Controller - on-the-rack - REST API, analog, full digital, serial

Please call (800) 321-6786 to order.


Production Specification

*** NOTE: This part is obsolete and no longer available. ***


The SNAP-PAC-R1-W offers all the same functionality as a SNAP-PAC-R1, and it adds wireless LAN communication capability as well.

This rack-mounted programmable automation controller provides control, communication, and I/O processing in a compact package. One of four components of the SNAP PAC System, the SNAP-PAC-R1-W is fully integrated with PAC Project software, SNAP PAC brains, and SNAP I/O modules.

Used with the included PAC Project Basic software suite (or PAC Project Professional, purchased separately), the Ethernet-based SNAP-PAC-R1-W 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-W can provide complete cell control on its own rack with I/O modules. It can also control SNAP PAC I/O units at the same time for a larger system. Or the R1 can be used in a more extensive distributed control system as an I/O unit controlled by a SNAP PAC S-series standalone controller. It can even be used as intelligent remote I/O for Allen-Bradley Logix PLC systems, such as ControlLogix and MicroLogix.

The SNAP-PAC-R1-W includes a wireless LAN interface that supports 802.11a, b, and g network standards. The controller can be used in infrastructure or ad-hoc mode. For security, 802.11i standards are supported, including WPA2-AES as well as WPA and WEP for backwards compatibility.

In addition, the PAC includes two independent, 10/100 Mbps wired Ethernet network interfaces. You can use the PAC wirelessly, on a wired network, or both at once. All three interfaces—one wireless and two wired—have separate IP addresses. They 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 PPP (Point-to-Point Protocol) communication over a modem or for direct connection to serial devices.

Programming and Protocols
The SNAP-PAC-R1-W 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. The controller has 32 MB of RAM and can run up to 16 PAC Control flowcharts at once (many more can be included in the strategy).

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 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. OR take advantage of Opto 22's groov to quickly build and view HMIs you can use on virtually any computer, tablet, or smartphone—any screen size, from any manufacturer—using just a modern web browser (like Firefox or Chrome). Learn more about groov.

In addition to control, the SNAP-PAC-R1-W provides communication. Because it is based on the Internet Protocol (IP), the SNAP-PAC-R1-W 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 4812, 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-W 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).
Please note: The SNAP-PAC-R1-W uses the same mounting racks and the same I/O modules no matter which network communication method you choose. If you change from a wired network to a wireless LAN or back again, you do not need to add hardware, reconfigure I/O, change field wiring, or change programming.

If you don't need a wireless LAN interface, see the SNAP-PAC-R1.

Compare SNAP PAC controllers and brains.

Build your system in the SNAP I/O Configurator.


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

  Total RAM

  Battery-backed RAM


Wired+Wireless models 32 MB (10 MB available for PAC Control strategy and 4 MB for file storage. Other models 16 MB (5 MB available for PAC Control strategy and 2 MB for file storage)

  2 MB (1 MB available for PAC Control strategy)
  8 MB (3.25 MB available for PAC Control strategy; 384 KB available for file storage)

Removable storage

(Models with manufacture dates of November 2008 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.
(Note: Models with card slots and firmware R8.4 through R9.3e support microSD cards up to 2 GB only.)

Backup battery

Rechargeable (recharges whenever the brain has power), 3-year power-off data retention (replacement part number: SNAP-PAC-BATTERY-ML2430)1

Communication (wired)

  RS-232 serial


Two independent 10/100 Mbps Ethernet network interfaces (RJ-45 connectors)
Each interface has a separate IP address. Connects to host and I/O.
One RS-232 serial port
2 with hardware handshaking. Connects to host (via modem and PPP) or serial device. Cannot connect to serial I/O.

Communication (wireless)3

  Frequency 802.11a
  Frequency 802.11b/g
  Transmit Power
  Antenna Connector

Wireless LAN interface with separate IP address.
Infrastructure, Ad-Hoc
802.11i: AES - Compatible with WPA2 Personal, TKIP - Compatible with WPA Personal, WEP. Note: TKIP/AES security is not supported in Ad-Hoc mode.
5.180–5.240 GHz, 5.745–5.825 GHz
2.412–2.472 GHz, 2.484 GHz
15 dBm maximum
Reverse polarity SMA (RP-SMA or RSMA)
Supported within an SSID (Service Set Identifier) only

I/O unit compatibility

SNAP PAC I/O units: SNAP PAC R-series and EB-series I/O units

Power requirements

5.0–5.2 VDC @ 1.5 A

Hold-down screw

Torque: 8 in-lb (0.9 N-m)

Connector screw

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

  Operating temperature
  Storage temperature


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

  PAC Project Basic

  PAC Project Professional



Includes programming, HMI software, and configuration software; included with purchase of controller.
PAC Project Basic plus OPC 2.0-compliant OPC server, database connectivity,OptoControl strategy and OptoDisplay project importing, and support for Ethernet link redundancy or network segmenting.
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

Number of charts that can run simultaneously


Agency certifications

All models: DFARS
All models except -W models: CE, RoHS
All models except -FM models: UL
(-W models only) U.S., FCC Part 15 Subpart C; Canada, IC RSS-210
(-FM and -B models only) Factory Mutual approved, ATEX


30 months from date of manufacture

Other features

• Multiple protocol support including TCP/IP, FTP, EtherNet/IP, Modbus/TCP,
  SNMP v2.0c, OptoMMP™, and SMTP
• Built-in I/O processor handles up to 16 digital
4, analog, and serial I/O modules   on the same rack
• Real-time clock
• FTP server/client with file system (in RAM and in 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 a Wired+Wireless model (SNAP-PAC-R1-W or SNAP-PAC-R2-W).
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.

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 four components (software, controllers, brains, 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.

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.

SNAP PAC System Product Guide

This document lists and describes all Opto 22 SNAP PAC System part numbers, including PAC Project software, SNAP PAC controllers, SNAP PAC brains, 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.

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 Opto 22 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, including groov.

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 and groov 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.

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, part of the the PAC Project Software Suite, to assign IP addresses, configure I/O, and inspect and maintain Opto 22 SNAP PAC hardware.

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 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, 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.

OptoMMP Protocol Guide

This guide is for programmers who are writing custom applications to communicate with Opto 22 memory-mapped devices. These devices include 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."

Declaration of Conformity (RED)

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.

Automation manufacturer Opto 22 and information technology company IBM join forces to bridge the gap between existing industrial assets and infrastructure, and the digital world of mobile, cloud, and information technology. Read the press release. 

Watch the 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.

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 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

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.

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.

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 for Opto 22 .NET Controller Software Development Kit (SDK) for SNAP PAC

CE Declaration: R&TTE

This declaration of conformity applies to the R&TTE Directive of the European Union (1999/5/EC).

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.

Opto 22 Breaks New Ground in Wireless Networking

Company’s SNAP PAC programmable automation controllers and I/O are first to offer 802.11a/b/g wireless networking along with standard Ethernet networking

Quick Guide: Troubleshooting Info from SNAP PAC Systems

This note provides a list of 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 tools and protocols you can use with Opto 22 products for communication with a wide variety of software and systems.

Overcoming Concerns about Wireless PACs and I/O in Industrial Automation

This white paper discusses four concerns engineers may have when considering the use of wireless Ethernet for industrial automation: security, network performance and reliability, availability and cost of I/O components, and the necessity of choosing between wired and wireless solutions up front.

The paper considers steps automation manufacturers could take to address these concerns and looks at the wired/wireless offering from Opto 22.

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.

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.

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.

UL Approval Document

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

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.

Effective April 2, 2018, some SNAP PAC controllers and brains have new flash components. These units ship 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). NOTE: Opto 22 recommends that you always use the most recent release of PAC Manager.

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-FM, -R1-W, and R1-B controllers
  • SNAP-PAC-R2, -R2-FM, and -R2-W controllers
  • SNAP-PAC-EB1, -EB1-FM, and -EB1-W brains
  • SNAP-PAC-EB2, -EB2-FM, 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-W Controller Firmware

This download contains current firmware for the SNAP-PAC-R1-W controller. Current firmware for all SNAP PAC brains and controllers is available in a single download here.

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)
  • M4
  • M4RTU
  • M4IO
This download is freeware. Before downloading, read the Legal Agreement.


OptoTagPreserve copies variables from your PAC Control strategy running on a SNAP PAC controller and saves them in a password-protected binary file or a plain-text XML, OptoScript, or init.txt file.

The primary reason you would use this utility is to make it easier to preserve variable states when you need to update firmware on the controller. Updating firmware erases battery-backed data including persistent variables and variables initialized on strategy download. Use OptoTagPreserve before loading new firmware to archive tag values to the computer, and then restore them after firmware is loaded and the strategy has been downloaded.


  • Make sure the strategy is stopped before restoring tag values. If the strategy is running, unexpectedly changing values can cause unpredictable results with strategy operation.
  • Writing to a plain-text file requires that the strategy contain a special variable allowing plain text.

See the technical note included in the download for complete information on using the utility.


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: Wired and Wireless Configuration - Introduction

Learn how to configure the wireless LAN interface on the controller and verify the wireless connection and signal strength.

Video: Dual Ethernet Interfaces: Controllers vs. Brains

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

Video: SNAP PAC Wired+Wireless Products

A quick overview of SNAP PAC Wired+Wireless Products.

Video: Securing SNAP Module

A quick overview on securing a SNAP Module to a SNAP rack.

Video: Removing a SNAP Module

A quick overview on removing a SNAP module.

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.

Demo: 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.

Demo: Accuracy vs Resolution

What's the difference between accuracy and resolution in analog I/O specifications? Try your own specs in the calculator.

Demo: SNAP PAC Networking

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

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.