Omron ZEN - Table of Contents

xv
Table of Contents
Preface - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ii
Warranty and Application Considerations - - - - - iii
Precautions vii
Conventions Used in This Manual - - - - - - - - - - xiii
Revision History - - - - - - - - - - - - - - - - - - - - - - xiv
SECTION 1
Communications Methods
1.1 Overview of Communications Methods ......................................................... 2
Introduction ............................................................................................ 2
Communications Specifications ............................................................. 2
Transmission Procedure ........................................................................ 3
Interface ................................................................................................. 3
Wiring ..................................................................................................... 3
Communications Parameters ................................................................. 4
Setting Communications Parameters .................................................... 5
SECTION 2
CompoWay/F Communications Protocol
2.1 Data Format ................................................................................................ 10
Command Frame ................................................................................. 10
Response Frame ................................................................................. 11
Communications Data .......................................................................... 12
2.2 Structure of Command Text ........................................................................ 14
PDU Structure ...................................................................................... 14
Addresses ............................................................................................ 14
Number of Elements ............................................................................ 14
List of Services ..................................................................................... 15
2.3 Detailed Description of the Services ........................................................... 16
Read Variable Area .............................................................................. 16
Variable Type and Read Start Address ............................................... 16
Bit Position ........................................................................................... 16
Number of Elements ............................................................................ 16
Response Code ................................................................................... 16
Reading Timers, Counters, and Comparators ..................................... 17
Reading Work Bits and HR Bits ........................................................... 20
Write Variable Area .............................................................................. 21
Writing Timer and Counter Set Values ................................................ 22
Writing Work Bits and HR Bits ............................................................. 26
Read Controller Attributes .................................................................... 26
Read Controller Status ......................................................................... 27
Read Time Data ................................................................................... 28
Write Time Data ................................................................................... 29
Echoback Test ..................................................................................... 31
Operation Command ............................................................................ 32
2.4 Response Code List .................................................................................... 34
SECTION 3
Communications Data
3.1 Variable Area (Data Range) List ................................................................. 36
Appendix 41
ASCII List .............................................................................................................. 42