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SPI Protocol Interface Module
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Cat. No. 1771SPI
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Important User Information
2
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Table of Contents
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Table of Contentsii
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Using This Manual
5
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Overview of an SPI
7
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Communication Network
7
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Role of the
8
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Host PLC5 Processor
8
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Files That You Map in the
8
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Data Table
8
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Overview of the Data
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Chapter 1
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How the SPI Module
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Communicates With Its
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Network Devices
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Many Different Devices
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Can the SPI Network
12
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Definition of Terms
13
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Objective
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Required Information from
15
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Chapter 2
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Communication Rate
16
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Data Types and Data Codes
17
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Wiring the SPI Network
20
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Objectives
23
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Command and Status
23
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Module Configuration
24
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Command Block (MCC)
24
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Chapter 3
25
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System Status Block (SYS)
26
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Custom Configuration
28
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Block (CCB)
28
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Custom Data Block (CDB)
30
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Status (CCS)
32
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Custom Data Status (CDS)
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CDS Resulting from CDB
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Summary of SPI
36
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Block Acronyms
36
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Device T
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Match Your Application
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Command Block, MCC, to
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Configure the SPI Module
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Chapter 4
39
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MCC Worksheet
39
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Custom Configuration Block
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CCB, to Configure the SPI
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Module for a Device
40
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CCB Worksheet
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Custom Data Block, CDB, to
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Transfer Data to the Device
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CDB Worksheet
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System Status Block, SYS
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Status, CCS, to Return
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Configuration Status From
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Custom Data Status, CDS, to
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Return Device Status From
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Troubleshooting with
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Diagnostic Indicators
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Chapter 5
52
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Using Diagnostic
55
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Error Codes
55
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CCB Bit/Word Map
57
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Error Codes Returned in CDS
58
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Customer Support
61
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Worldwide representation
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