LG GLOFA-GM Series - User Manual

LG Programmable Logic Controller
Cnet I/F Module
GLOFA-GM
G3L-CUEA
G4L-CUEA
G6L-CUEB
G6L-CUEC
G7L-CUEB
G7L-CUEC
User’s Manual
LG INDUSTRIAL SYSTEMS

Summary

LG Programmable Logic Controller Cnet I;F Module

Chapter 1 Introduction

1.1 Module Selection by CPU Type

Guides selection of Cnet I/F modules based on CPU type.

Chapter 3 Product Specification

3.2 Performance Specifications

Outlines key performance parameters for communication capabilities.

Chapter 4 Performance Specification

4.1 Operation Mode Setting

Details how to set the module's operation mode via switches.

4.1.1 Channel Operation in Interlocking Mode

Explains channel operation when in interlocking mode.

4.1.2 Channel Operation in Stand-Alone Mode

Explains channel operation when in stand-alone mode.

4.1.3 Channel Operation in Self-Diagnosis Mode (Loop-Back)

Describes loop-back self-diagnosis for channel testing.

4.2.1 RS-232 C Interface Connection

Explains RS-232C interface pin specifications and connections.

4.2.2 RS-422 Interface Connection

Explains RS-422 interface pin specifications and connections.

Chapter 5 Frame Editor

5.1 Basic Functions

5.2.1 Basic Parameter Setting

5.2.2 Frame Setting Process

5.2.3 Frame Writing and Reading

Chapter 6 System Configuration

6.1 Available System Configurations

6.1.1 1:1 Connection (No Modem) to PC

6.1.2 1:1 Dedicated Modem Connection to PC

6.1.3 Modem Connection to PC & Cnet I;F Modules

Chapter 7 Communication Function

7.1 User Defined Communication

Enables custom protocol definition for inter-company device communication.

7.1.1 Introduction to User Defined Communication

7.1.2 User Defined Operation Procedure

7.1.3 User Defined Function Blocks (SND_MSG, RCV_MSG)

Describes dedicated TX/RX Function Blocks for communication frames.

7.1.4 Example of User Defined Programming

7.1.5 User Defined Communication for GM7 Series

7.2 Dedicated Communication Slave

Covers the functionality of the module as a dedicated communication slave.

7.2.1 Introduction to Dedicated Slave Mode

7.2.2 Frame Structure Basics

7.3 Dedicated Communication Master (Cnet-to-Cnet)

Explains master communication setup between Cnet modules.

7.3.1 Introduction to Dedicated Master

7.3.2 Function Blocks for Dedicated Communication

Describes Function Blocks used for dedicated communication.

7.3.3 How to Use Dedicated Function Blocks

7.4 Other Companys Dedicated Mode (Ver.2.0)

Explains how to use other company's protocols in dedicated mode.

7.4.1 Introduction to Other Company Mode

7.4.2 Operating Mode & Driver Download

7.5 GMWIN Remote Connection

Explains how to establish remote connections using GMWIN.

7.5.1 Introduction to Remote Connection

7.5.2 GMWIN Remote Connection via Modem

7.5.3 Remote Connection Between Cnet I;F Modules

Chapter 8 Exercising Program

8.1 TM (Tele Metering) System using Dedicated Modem

Describes the TM system configuration with dedicated modems.

8.1.1 Exercising Program Steps

8.2 Cnet I;F Modules Optical Modem Communication

8.3 GMWIN Connection using Dial-up Modem

Chapter 9 Diagnosis Function

9.1 Loop-Back Self Diagnosis

Details the self-diagnosis function for checking module operation.

9.1.1 Principle of Operation

Explains how the loop-back test sends and receives data.

9.1.2 Procedure for Loop-Back Self Diagnosis

Provides step-by-step instructions for performing loop-back diagnosis.

9.1.3 Loop-Back Test LED Operation

Describes LED indications during loop-back test.

9.2 Diagnosis During Power On

Outlines the self-diagnosis sequence performed upon power-on.

Chapter 10 Installation and Testing Operation

10.1 Installation and Testing Operation

Covers the procedures for installing and testing the modules.

10.1.1 Mounting and Installation Procedures

Details the physical mounting and installation steps.

10.1.2 Cautions During System Configuration

Lists important precautions for system configuration.

10.1.3 Testing Operation Checklist

Provides a checklist for pre-testing operations.

10.2 Maintenance and Check

10.2.1 Daily Checks

Details the daily maintenance and checking procedures.

10.2.2 Regular Checks

Outlines recommended regular maintenance checks.

Chapter 11 Troubleshooting

11.1 Abnormal Operations

Lists common abnormal operations and their potential causes.

11.2 Troubleshooting by Error Code

Provides guidance for resolving errors based on specific error codes.

11.2.1 ERR-1, ERR-2: Hardware & System Errors

Troubleshooting steps for hardware and system-related errors.

11.2.2 ERR-3: Communication Command Error

Troubleshooting steps for communication command errors.

11.2.3 ERR-4, ERR-5: Receive Monitor Data Error

Troubleshooting steps for receive monitor data errors.

11.2.4 ERR-6, ERR-7: Transmission Monitor Data Error

Troubleshooting steps for transmission monitor data errors.

11.2.5 ERR-8, ERR-9: Dedicated Communication Error

Troubleshooting steps for errors during dedicated communication.

11.2.6 ERR-10: GMWIN Connection Error

Troubleshooting steps for errors related to GMWIN connection.

Appendix

A.1.2 LED Indication During Normal Operation

A.1.3 LED Indication During Abnormal Operation

Explains LED behavior during abnormal module operations.

A.1.4 LED Indication During Power On

A.2.1 User Defined Communication Error Codes

A.2.2 Dedicated Slave Communication Error Codes

A.2.3 Dedicated Master Communication Error Codes

LG GLOFA-GM Series Specifications

General

Brand	LG
Model	GLOFA-GM Series
Category	Controller
Language	English