General Description

Introduction

In your project, you can add the following types of expansion modules to your controller:

oDigital

oAnalog

Use the GetRightBusStatus function regularly to monitor the expansion bus status.

TM2...N Expansion Module Configuration

For more information about module configuration, refer to the following programming and hardware guides:

Expansion Module	Programming Guide	Hardware Guide
TM2...N Expansion Modules	TM2...N Expansion Modules Configuration Programming Guide	TM2...N Expansion Modules Hardware Guide

TM2 Expansion Module Configuration

For more information about module configuration, refer to the programming and hardware guides of each expansion module type:

Expansion Module	Programming Guide	Hardware Guide
TM2 Digital I/O Modules	TM2 I/O Modules Configuration Programming Guide	TM2 Digital I/O Modules Hardware Guide
TM2 Analog I/O Modules	TM2 I/O Modules Configuration Programming Guide	TM2 Analog I/O Modules Hardware Guide

TM3 Expansion Module Configuration

For more information about module configuration, refer to the programming and hardware guides of each expansion module type:

Expansion Module	Programming Guide	Hardware Guide
TM3 Digital I/O Modules	TM3 I/O Modules Configuration Programming Guide	TM3 Digital I/O Modules Hardware Guide
TM3 Analog I/O Modules	TM3 I/O Modules Configuration Programming Guide	TM3 Analog I/O Modules Hardware Guide

Maximum Hardware Configuration

The following table shows the maximum number of expansion modules for each Modicon M218 Logic Controller:

Controller	Maximum Number of Expansion Modules
TM218LDA16DRN	4
TM218LDA24DRN TM218LDA24DRHN TM218LDD24DUPHN TM218LDAE24DRHN	4
TM218LDA40DRN TM218LDA40DRPHN TM218LDD40DUPHNB TM218LDAE40DRPHN TM218LDA40DR2HN TM218LDA40DR4PHN	7
TM218LDA60DRN	7