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Momentum Sales & Marketing 170 PNT Series manual Assembling a Communications Adapter and I/O Base

Models: 170 PNT Series

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Assembling a Communications

Adapter and I/O Base	2

At a Glance

Purpose	This chapter explains how a Communication Adapter connects with an I/O base,
	how to assemble a module, and how to label the assembled module. It also includes
	a procedure for disassembling a module.
What’s in this
What’s in this	This chapter contains the following topics:

Chapter?
Chapter?	Topic	Page
	Topic	Page

	Connections Between the Adapter and I/O Base	18

	Assembling the I/O Base and the Adapter	19

	Labeling the Assembled Module	21

	Disassembling an Adapter from an I/O Base	23

870 USE 103 00 May 2001

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Momentum Sales & Marketing 170 PNT Series manual Assembling a Communications Adapter and I/O Base, At a Glance

Contents

PNT Series USE 103 00 May Table of Contents USE 103 00 May At a Glance About the BookDocument Scope ModelsUSE 103 00 May Purpose IntroductionWhat’s in this Chapter?Product Overview DiagramOverview FunctionIntroduction Indicators Status IndicatorsActive Indicator Modbus PlusIndicator Red Status Modbus Plus Channel Error IndicatorsTwo Rotary Address SwitchesModule address Example of Node Address Assignment Upper Address SwitchCabling Ports and CablingPorts Introduction Assembling a Communications Adapter and I/O Base Physical Connections Between the Adapter and I/O BaseConnections ElectricalStep Overview Procedure Assembling an Base and an AdapterAssembling the I/O Base and the Adapter Step Description Labeling the Assembled ModuleOverview What Goes on the Label? Example of a Label Disassembling an Adapter from an I/O Base Step Assembling Adapter and I/O Base Purpose What’s in this Chapter? Using Modbus Plus for Distributed ServicingStrategies for Distributed I/O Servicing Configuration Network ConfigurationLimit Types Devices onExample Modbus Plus Network LayoutsSingle Cable Dual Cable Example below illustrates a dual cable configurationModbus Plus for DIO Servicing How Communication Adapters Handle Messages How Messages Are Defined in the Application How Messages are Transacted Communication Adapter Message Handling Communication Access Registers Overview of Register Types Access toRegister Types FunctionsDiagram of Register Types Output data to field outputs All other registers can be accessed using Mstr blocksData Registers Module Timeout Configuration RegistersRegister ParametersModule Ownership Registers Parameters Ascii header block Status RegistersModule Status Block Function Operating parameters Module StatusBlock Function Ascii Header Ascii HeaderBlock 4FC01+Byte ASCIICharacters Offset MeaningAAO 120 00 Analog 4-Channel Output Module Examples of an Ascii Header BlockADM 350 00 Discrete 16-Point Input, 16-Point Output Module Communication Access Registers