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GE RX3i User Manual

GE RX3i
276 pages
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GE
Automation & Controls
Programmable Control Products
PACSystems* RX7i &
RX3i TCP/IP Ethernet
Communications User
Manual
GFK
-2224Q
April 2017

Table of Contents

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GE RX3i Specifications

General IconGeneral
User MemoryUp to 32 MB
Programming SoftwareProficy Machine Edition
CPUIntel Celeron M
Power Supply24V DC or 120/240V AC
Communication PortsEthernet, Serial
Operating Temperature0°C to 60°C
RedundancyOptional
Programming LanguagesLadder Logic, Structured Text, Function Block Diagram

Summary

Chapter 1 Introduction

1.3.3 Ethernet Interface Specifications

Lists the technical specifications for Ethernet interface modules.

1.4 Ethernet Redundancy Operation

Explains Ethernet redundancy features and operation.

Chapter 4 Configuration

4.1.2 Initial IP Address Assignment

Procedure for assigning an initial IP address to the Ethernet interface.

4.1.3 Configuring the Ethernet Interface Parameters

Steps to configure Ethernet interface parameters like IP, subnet, and gateway.

4.2.2 Initial IP Address Assignment

Procedure for assigning an initial IP address to rack-based/RX7i interfaces.

4.2.3 Configuring Ethernet Interface Parameters

Steps to configure parameters for RX7i embedded or rack-based interfaces.

4.2.4 Configuring Ethernet Global Data (EGD)

Describes how to configure Ethernet Global Data (EGD) parameters.

Chapter 5 Ethernet Global Data

5.1 Ethernet Global Data Operation

Basic operation of Ethernet Global Data (EGD) for producers and consumers.

5.2 EGD Exchanges

Describes EGD exchanges, their identification, and length limits.

5.7 Monitoring Ethernet Global Data Exchange Status

Explains how to monitor EGD exchange status using the Exchange Status word.

Chapter 6 Programming EGD Commands

6.1 General Use of EGD Commands

Overview of EGD commands for reading and writing PLC data.

6.3 COMMREQ Format for Programming EGD Commands

Describes the COMMREQ format for EGD command programming.

6.5 Read PLC Memory (4000)

Command to read memory locations from a remote PACSystems PLC.

6.5.1 Read PLC Memory Command Block

Details the command block structure for reading PLC memory.

6.6 Write PLC Memory (4001)

Command to write memory locations to a remote PACSystems PLC.

6.6.1 Write PLC Memory Command Block

Details the command block structure for writing PLC memory.

6.7 Read EGD Exchange (4002)

Command to read data from a configured EGD exchange.

6.7.1 Read EGD Exchange Command Block

Details the command block structure for reading EGD exchanges.

6.8 Write EGD Exchange (4003)

Command to write data to a configured EGD exchange in a remote producer.

6.8.1 Write EGD Exchange Command Block

Details the command block structure for writing EGD exchanges.

6.9 Masked Write to EGD Exchange (4004)

Command to write specific bits within a byte of an EGD exchange.

6.9.1 Masked Write EGD Exchange Command Block

Details the command block for masked EGD exchange writes.

Chapter 7 Programming SRTP Channel Commands

7.1 SRTP Channel Commands

Overview of SRTP client commands for PLC to PLC communication.

7.2 COMMREQ Format for Programming Channel Commands

Details the COMMREQ format for SRTP channel commands.

7.2.2 Establish Read Channel (2003)

Command block example for establishing a read channel.

7.2.3 Establish Write Channel (2004)

Command block example for establishing a write channel.

7.3 Programming for Channel Commands

Tips and considerations for programming channel commands.

Chapter 8 Modbus/TCP Server

8.1 Modbus/TCP Server

Overview of Modbus/TCP Server functionality in PACSystems.

8.3 Modbus Function Codes

Summarizes Modbus function codes and their PACSystems mapping.

Chapter 9 Modbus/TCP Client

9.1 The Communications Request

Defines 'Communications Request' for initiating client channel commands.

9.1.4 Modbus/TCP Channel Commands

Overview of client commands for Modbus/TCP communication.

9.2 COMMREQ Function Block and Command Block

Describes common programming structures for Requests.

9.3 Modbus/TCP Channel Commands

Details the operation of Modbus/TCP channel commands.

9.3.1 Open a Modbus/TCP Client Connection (3000)

Procedure to open a Modbus/TCP client connection.

9.3.3 Read Data from a Modbus/TCP Device (3003)

Command to read data from a Modbus/TCP device to the PLC.

9.3.4 Write Data to a Modbus/TCP Device (3004)

Command to transfer data from PLC to a Modbus/TCP server.

9.3.5 Mask Write Register Request to a Modbus Server Device (3009)

Modifies register contents using AND/OR masks.

9.3.6 Read/Write Multiple Registers to/from a Modbus Server Device (3005)

Reads and writes data using a single COMMREQ operation.

9.4 Status Data

Describes status data for determining Ethernet interface and channel states.

9.5 Controlling Communications in the Ladder Program

Provides tips on controlling communications within ladder logic.

Chapter 10 OPC UA Server

10.1 Application Logic to Control the OPC UA Server

Controlling the OPC UA server using SVC REQ function block.

10.1.1 OPC UA Server Service Request (START, STOP, CLEAR, etc.)

Details service requests for managing OPC UA server states.

10.1.3 Connect OPC UA Client to OPC UA Server

Steps to connect an OPC UA client to the server.

10.1.4 OPC UA Client Authentication Settings

Describes OPC UA authentication methods: Anonymous, Username/Password.

10.1.9 Publish Application Variables to OPC UA Address Space

Selecting variables to include in the OPC UA address space.

Chapter 12 Diagnostics

12.2 Diagnostic Tools Available for Troubleshooting

Lists tools and methods for diagnosing Ethernet interface and network issues.

12.3 States of the Ethernet Interface (Rack-based and RX7i Embedded Interfaces)

Describes the operational states of the Ethernet Interface during power-up.

12.5 Controller Fault Table

Explains how the Controller Fault Table logs Ethernet interface errors.

12.5.1 Controller Fault Table Descriptions

Details common controller faults related to Ethernet interface issues.

12.6 Monitoring the Ethernet Interface Status Bits

Explains how to monitor Ethernet interface status bits for diagnostics.

12.7 Monitoring the FT Output of the COMMREQ Function Block.

How to monitor the FT output for programming errors in COMMREQ.

12.8 Monitoring the COMMREQ Status Word (CSW)

Monitoring the COMMREQ Status Word for command execution status.

12.8.2 Major Error Codes in the COMMREQ Status Word

Lists and explains major error codes in the COMMREQ Status Word.

12.8.4 Minor Error Codes for Major Error Code 11H (at Remote Server PLC)

Lists minor error codes for SRTP errors detected at the server.

12.8.5 Minor Error Codes for Major Error Code 90H (at Client PLC)

Details minor error codes for client-side Modbus/TCP errors.

12.8.6 Minor Error Codes for Major Error Code 91H (at Remote Modbus/TCP Server)

Lists minor error codes for Modbus/TCP server errors.

12.8.7 Minor Error Codes for Major Error Code A0H (at Client PLC)

Details minor error codes for EGD command errors at the client.

12.10 Troubleshooting Common Ethernet Difficulties

Troubleshooting guidance for common Ethernet errors.

12.10.1 COMMREQ Fault Errors

Diagnosing COMMREQ delivery failures due to rapid initiation.

12.10.2 PLC Timeout Errors

Troubleshooting PLC timeout errors related to SRTP or EGD traffic.

10.10.3 Application Timeout Errors

Identifying causes and solutions for application timeout errors.

10.10.4 EGD Configuration Mismatch Errors

Resolving errors caused by differing producer/consumer EGD definitions.

Chapter 13 Network Administration

13.1 IP Addressing

Discusses how devices are identified on a TCP/IP network using IP addresses.

Appendix A Configuring Advanced User Parameters

A-2 Advanced User Parameter Definitions

Provides definitions for various Advanced User Parameters.

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