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Table of Contents

Preface ................................................................................................................................. 3

User Manual Guide ............................................................................................................... 4

Communication Protocol ....................................................................................................... 5

User Manual Symbols ........................................................................................................... 6

Safety Precautions ................................................................................................................ 7

Table of Contents .................................................................................................................. 9

1 Modbus RTU Protocol .............................................................................. 11

1.1 Read coil status(Func 01–01H) ............................................................................... 11

1.2 Read input status(Func 02–02H) ............................................................................ 12

1.3 Read holding registers(Func 03–03H) .................................................................... 13

1.4 Read input registers(Func 04–04H) ........................................................................ 14

1.5 Force single coil (Func 05–05H) ............................................................................. 15

1.6 Preset single registers(Func 06–06H) .................................................................... 16

1.7 Preset multiple registers(Func 16–10H) ................................................................. 17

1.8 Exception response-error code ............................................................................... 18

2 Modbus Mapping Table ............................................................................ 19

2.1 Read coil status/force single coil (Func: 01/05, RW: R/W) ................................... 19

2.2 Read input status (Func: 02, RW: R) ...................................................................... 20

2.3 Read input register (Func: 04, RW: R) .................................................................... 21

2.4 Read input register (Func: 04, RW: R) .................................................................... 22

2.5 Read holding register(Func 03)/preset single register(Func 06)/

preset multiple registers(Func 16) ......................................................................... 24

2.5.1 Monitoring group[Func : 03/06/16, RW : R/W] ........................................... 24

2.5.2 Control operation group(Func : 03/06/16, RW : R/W) ................................ 25

2.5.3 Control operation group(Func: 03/06/16, RW: R/W) .................................. 26

2.5.4 Initial setting group(Func: 03/06/16, RW: R/W) ......................................... 28

2.5.5 Control setting group(Func: 03/06/16, RW: R/W) ...................................... 29

2.5.6 Communication setting group(Func: 03/06/16, RW: R/W) ......................... 30

2.5.7 Alarm setting group (Func: 03/06/16, RW: R/W) ....................................... 31

2.5.8 Digital iput setting group (Func: 03/06/16, RW: R/W) ................................ 35

Autonics TM Series User Manual For Communication

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