172-65711M-04 (SC-F71 Communication) 24 Dec 2021
Contents
Introduction..............................................................................................2
Safety Considerations .............................................................................3
Notice ......................................................................................................5
Notice Regarding the Export Trade Control Order (Japan).....................5
Disposal...................................................................................................5
Symbols...................................................................................................6
Pictorial Symbols (safety symbols).............................................................6
Character Symbols .....................................................................................6
Abbreviation symbols..................................................................................7
Screens used in this manual.......................................................................7
Document Configuration..........................................................................8
About this Manual....................................................................................9
1. Overview............................................................................................10
2. Wiring................................................................................................12
2.1 Wiring Cautions ..................................................................................12
2.2 Wiring for Host Communication..........................................................13
2.3 Connections for Loader Communication ............................................17
3. Parameter Setting..............................................................................19
3.1 Setting of Communication Parameter.................................................19
3.2 Communication Requirements ...........................................................22
4. Original Communication Protocol......................................................24
4.1 Polling.................................................................................................24
4.2 Selecting.............................................................................................30
5. Modbus Protocol................................................................................34
5.1 Message Format.................................................................................34
5.2 Function Code ....................................................................................35
5.3 Communication Mode.........................................................................35
5.4 Slave Responses................................................................................36
5.5 Calculating CRC-16............................................................................37
5.6 Register Read and Write ....................................................................40
5.7 Caution for Handling Communication Data.........................................42
5.8 How to use Modbus data mapping .....................................................43
5.9 How to Use Memory Area Data..........................................................45
6. Communication Data List ..................................................................49
6.1 Structure of the original communication/Modbus data map................49
6.2 How to read the table..........................................................................50
6.3 Original Communication/Modbus Data...............................................52
7. Troubleshooting...............................................................................129
7.1 Original Communication ...................................................................130
7.2 Modbus.............................................................................................131
8. Specifications ..................................................................................132
8.1 Original Communication ...................................................................132
8.2 Modbus.............................................................................................132
8.3 Loader Communication.....................................................................133
TLV EXPRESS LIMITED WARRANTY...............................................134
Service.................................................................................................136
