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PC-Based I/O Overview

This document shows examples of system architecture for PC-based I/O control systems and lists Opto 22 products that work together for PC-based control. System examples include:

• Ethernet systems using SoftPAC, a software-based programmable automation controller programmed with PAC Control
• Ethernet systems using the OptoMMP protocol
• Direct control of I/O using no I/O processor (no brain)
• High-speed control using the Pamux protocol

NOTE: Before choosing to use a PC for control, consider groov EPIC.  A groov EPIC processor offers many features similar to a PC, such as a Linux OS with optional secure shell access; cybersecurity features; Ethernet, USB, and HDMI ports; and the ability to run the control program and HMI on the same hardware. In addition, a groov EPIC system offers real-time control using traditional programming languages; guaranteed-for-life I/O on the same chassis; industrial toughness for hazardous locations; and easier integration with company computer networks, manufacturing, business, and facility systems, and cloud-based services & software.

1465

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."

2135

.NET OptoMMP SDK for groov EPIC and SNAP PAC

The .NET OptoMMP Software Development Kit (SDK) for groov EPIC and SNAP PAC provides an easy-to-use interface for a developer to quickly create an Ethernet I/O-based application for Opto 22 products that use the OptoMMP protocol. This technical note shows you how to get started with the SDK.