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Momentum Sales & Marketing 170 PNT Series manual Ports and Cabling

Models: 170 PNT Series

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Introduction

Ports and Cabling

Overview	This section provides information about ports and cabling for the Momentum
	Modbus Plus Communication Adapters.
Ports
Ports	Model 170 PNT 110 20 has one Modbus Plus port for connection to a network with
	a single trunk cable.
	Model 170 PNT 160 20 has two ports for connection to either a single-cable or dual-
	cable network.
Cabling
Cabling	Network port connections are compatible with standard Modbus Plus drop cables.
	Drop cables are available from Schneider Automation in three standard lengths:
	2.4m (8ft), 3m (10ft), and 6m (20ft).

870 USE 103 00 May 2001

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Momentum Sales & Marketing 170 PNT Series manual Ports and Cabling

Contents

PNT Series USE 103 00 May Table of Contents USE 103 00 May Models About the BookAt a Glance Document ScopeUSE 103 00 May Chapter? IntroductionPurpose What’s in thisFunction DiagramProduct Overview OverviewIntroduction Modbus Plus Status IndicatorsIndicators Active IndicatorIndicator Red Status Modbus Plus Channel Error IndicatorsAddress Switches Module addressTwo Rotary Example of Node Address Assignment Upper Address SwitchPorts and Cabling PortsCabling Introduction Assembling a Communications Adapter and I/O Base Electrical Connections Between the Adapter and I/O BasePhysical ConnectionsOverview Procedure Assembling an Base and an Adapter Assembling the I/O Base and the AdapterStep Step Labeling the Assembled Module Overview What Goes on the Label? Example of a LabelDescription 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 Devices on Network ConfigurationConfiguration Limit TypesModbus Plus Network Layouts Single CableExample 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 Functions Access toOverview of Register Types Register TypesDiagram of Register Types All other registers can be accessed using Mstr blocks Data RegistersOutput data to field outputs Parameters Configuration RegistersModule Timeout RegisterModule Ownership Registers Parameters Block Function Operating parameters Module Status Status RegistersAscii header block Module Status4FC01+Byte ASCIICharacters Offset Meaning Ascii HeaderBlock Function Ascii Header BlockExamples of an Ascii Header Block ADM 350 00 Discrete 16-Point Input, 16-Point Output ModuleAAO 120 00 Analog 4-Channel Output Module Communication Access Registers