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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.

Incremental encoders are often used to track movement in applications from cranes and conveyors to motion control and robotics, where control depends upon knowing a precise position, speed, or direction. This technical note shows you how to use quadrature encoders with Opto ...

Opto 22 Informs and Entertains as “OptoVideos” Proliferate on the World Wide Web

The TL1 Integration Kit for PAC Project™ allows Opto 22 SNAP PAC controllers using PAC Control™ to manage telecommunication network elements (NEs) using the Transaction Language 1 (TL1) protocol, an element management protocol widely used in North America. The integration ki...

The Time of Day (TOD) Scheduler is provided to help you get started using TOD scheduling.

This document shows you how to assemble the SSR-HS heat sink, thermal conductive pad, and Power Series solid state relay for best performance.

OptoEMU Sensor energy monitoring units and Opto 22 Wired+Wireless™ SNAP PAC controllers and brains can communicate wirelessly with other wireless devices in either infrastructure or ad-hoc mode. In ad-hoc mode, wireless devices communicate directly with each other, peer-to-p...

This technical note describes variable frequency drives (VFDs) and how to control them using Opto 22 analog I/O modules. The tech note pays special attention to reducing the electrical noise that is an inherent problem with VFDs.

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...

This technical note describes how to configure module types used with B3000 brains when using a custom application or third-party driver that supports the mistic or Optomux Protocol but does not support configuring module types for the B3000. The information in this technical ...

SoftPAC™ is a software-based programmable automation controller (PAC) designed for PC-based control. SoftPAC gives you the choice of running your control program in a Microsoft Windows environment rather than on a standalone or rackmounted PAC.

SoftPAC is a software-based programmable automation controller (PAC) designed for PC-based control. This short document shows you how to configure and run SoftPAC. SoftPAC is programmed with PAC Control , just like a hardware PAC. For information on programming SoftPAC, s...

NOTE: This document covers an older version of the toolkit that was released before November 2014. For the most recent toolkit version, see the  .NET OptoMMP SDK Technical Note , (form 2135). This technical note shows you how to use the SNAP PAC .NET OptoMMP SDK. This SDK g...

SNAP-SCM-PROFI Communication Module Firmware Readme

This technical note shows you how to replace a TMSDC/DC-12-X modem board.

"Russian Roulette" or the "New Normal"? Automation engineers heatedly debate the pros and cons of using standard COTS smartphones and tablets in industrial settings. Meanwhile, industry analysts like Gartner and ARC Advisory Group forecast tremendous growth in BYOD (brin...

This white paper explores the use of intelligent remote I/O in industrial automation systems. Employing a distributed architecture, rather than centralized control, offers three advantages: minimizing single points of failure, spreading the load, and maximizing scalability. ...

This technical note explains the basic elements of a proportional integral derivative (PID) control loop and shows you how to use our online PID tuner . In the online tuner you input specific data for your real-world PID loop. The tuner calculates functional P, I, and D v...

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 infor...

This technical note describes how to read data from an Opto 22 SNAP PAC programmable automation controller and place it in a Microsoft Access database. This tech note accompanies the sample database in the  SNAP PAC RESTful API to Access Database Example . Also, see the...

This utility allows users to: 1. Retrieve values of various tags/variables from a controller 2. Open/create a text file with a list of variables, either by hand or by reading tag names from a strategy (.cdb) file 3. Save the current values of variables to that same text f...

This file contains firmware for SNAP-SCM-485-422 and 'REVISION A' SNAP-SCM-232 serial communication modules. This firmware includes hardware flow control capability for the 'REVISION A' SNAP-SCM-232 module, and 4-wire mode for the SNAP-SCM-485-422 module.

Visio stencil library of SNAP PAC system components for Visio 2003. Images are shown in an upright position, as though the hardware were placed on a table top. Library includes left and right views of hardware in upright positions. This library supersedes SNAP PAC 2007 releas...

Visio stencil library of SNAP PAC system components for Visio 2003. Images are shown in front view, as though the hardware were mounted on a wall. This library supersedes SNAP PAC 2007 release images. Upright views are in a separate download.

This download contains current firmware for the SNAP-PAC-S1 and SNAP-PAC-S1-FM controllers. Current firmware for all SNAP PAC brains and controllers is available in a single download here . Effective April 2, 2018, some SNAP PAC controllers and brains have new flash comp...