Panasonic FP-XH Series User Manual page 6

4.1 Operation of PLC Link MEWNET-W0 .................................................4-2
4.1.1 Operation Overview of PLC Link...................................................... 4-2
4.1.2 Roles of Link Relays and Link Registers ......................................... 4-2
4.2 Setting Items for PLC Link ..................................................................4-4
4.2.1 Unit Number Setting......................................................................... 4-4
4.2.2 Setting of the Largest Unit Number.................................................. 4-4
4.2.3 Memory Block No. of Link Relays and Link Registers to be Used ... 4-4
4.2.4 Ranges of Link Relays and Link Registers to be Used .................... 4-5
4.2.5 Link Relay Transmission Start Number and Sending Size .............. 4-5
4.2.6 Link Register Transmission Start Number and Sending Size .......... 4-6
4.3 Response Time of PLC Link ...............................................................4-9
4.3.1 Response Time of One Transmission Cycle .................................... 4-9
4.3.2 Response Time when There are Units that have not been Added
to the Link ......................................................................................... 4-10
5 MEWTOCOL Master-Slave Communication .......................................5-1
5.1 List of MEWTOCOL Supported Commands .......................................5-2
5.1.1 List of MEWTOCOL Commands ...................................................... 5-2
5.2 MEWTOCOL-COM Master Communication (RECV)..........................5-3
5.2.1 Reading Data from External Device................................................. 5-3
5.3 MEWTOCOL-COM Master Communication (SEND)..........................5-6
5.3.1 Writing Data to External Device ....................................................... 5-6
6 MODBUS RTU Master-Slave Communication ....................................6-1
6.1 List of MODBUS RTU Supported Commands ....................................6-2
6.1.1 List of MODBUS Function Codes .................................................... 6-2
6.1.2 Device No. Correspondence Table .................................................. 6-2
6.2 MODBUS RTU Master Communication (RECV) ................................6-3
6.2.1 Reading Data from External Device................................................. 6-3
6.3 MODBUS RTU Master Communication (SEND) ................................6-6
6.3.1 Writing Data to External Device ....................................................... 6-6
7 General-Purpose Communication .......................................................7-1
7.1 Overview of Sending Data ..................................................................7-2
7.1.1 Overview of Sending Data ............................................................... 7-2
7.1.2 Send Data Area ............................................................................... 7-3
7.2 Receiving Data from External Devices ...............................................7-4
7.2.1 Overview of Receiving Data............................................................. 7-4
7.2.2 Receive Data Area ........................................................................... 7-5
7.3 Flag Operations in Transmission / Reception .....................................7-7
7.3.1 When the Header is Set to "No STX" and the Terminator to "CR" ... 7-7
7.3.2 When the Header is Set to "STX" and the Terminator to "ETX" ....... 7-8
8 Instruction References .........................................................................8-1
8.1 Communication Instruction .................................................................8-2
8.1.1 [F145 SEND] [F146 RECV] Instructions: Common Items ................ 8-2
8.1.2 [F145 SEND] Data Transmission (MEWTOCOL-COM Master) ....... 8-3
8.1.3 [F146 RECV] Data Reception (MEWTOCOL-COM Master) ............ 8-5
vi WUME-FPXHCOMG-02