Table Of Contents - Omron KM50 Communications Manual

Table of Contents

Introduction ............................................................................................................................I
Safety Precautions.............................................................................................................. IV
Precautions for Safe Use .................................................................................................... VI
Installation Precautions ...................................................................................................... VII
Precautions for Correct Use.............................................................................................. VIII
Preoperational Checks........................................................................................................ IX
Revision History .................................................................................................................. IX
Table of Contents................................................................................................................ XI
Section 1 Overview ......................................................................................1-1
1. 1 Communications Protocols...................................................................................1-2
■ Introduction ............................................................................................................ 1-2
■ Communications Specifications............................................................................. 1-3
■ Transmission Procedure........................................................................................ 1-3
■ Interface................................................................................................................. 1-3
■ Wiring..................................................................................................................... 1-4
■ Communications Parameters ................................................................................ 1-4
Section 2 CompoWay/F Communications Protocol .....................................2-1
2. 1 Data Formats........................................................................................................2-2
■ Command Frame................................................................................................... 2-2
■ BCC Calculation Example ..................................................................................... 2-3
■ Response Frame ................................................................................................... 2-3
■ Communications Data ........................................................................................... 2-4
■ End Code Examples .............................................................................................. 2-4
2. 2 Structure of Command Text .................................................................................2-5
■ PDU (Protocol Data Unit) Structure....................................................................... 2-5
■ Variable Areas and Parameter Areas.................................................................... 2-5
■ Area Definitions ..................................................................................................... 2-6
■ Type Codes ........................................................................................................... 2-6
■ Addresses.............................................................................................................. 2-7
■ Number of Elements .............................................................................................. 2-7
■ List of Services ...................................................................................................... 2-7
2. 3 Detailed Descriptions of Services.........................................................................2-8
■ Read Variable Area ............................................................................................... 2-8
■ Read Parameter Area.......................................................................................... 2-10
■ Write Parameter Area .......................................................................................... 2-12
■ Read Controller Attributes ................................................................................... 2-14
■ Read Controller Status ........................................................................................ 2-15
■ Read Time Data................................................................................................... 2-16
■ Write Time Data................................................................................................... 2-17
■ Echoback Test ..................................................................................................... 2-18
XI