Table of Contentsiv6. MODBUS RTU Master-Slave Communication .................. 6-16.1 List of MODBUS RTU Supported Commands........................................ 6-26.1.1 List of MODBUS Function Codes ............................................................ 6-26.1.2 Device No. Correspondence Table ......................................................... 6-26.2 MODBUS RTU Master Communication (RECV) .................................... 6-36.3 MODBUS RTU Master Communication (SEND) .................................... 6-57. General-Purpose Communication .................................... 7-17.1 Overview of Sending Data .....................................................................7-27.1.1 Overview of Sending Data....................................................................... 7-27.1.2 Send Data Area ....................................................................................... 7-37.2 Receiving Data from External Devices...................................................7-47.2.1 Receiving Data from External Devices .................................................... 7-47.2.2 Receive data area ................................................................................... 7-57.3 Flag Operations in Transmission / Reception ........................................ 7-67.3.1 When the Header is Set to “No STX” and the Terminator to “CR” .......... 7-67.3.2 When the Header is Set to “STX” and the Terminator to “ETX”.............. 7-88. Instruction References ...................................................... 8-18.1 List of Instructions..................................................................................8-28.2 Communication Instruction ....................................................................8-38.2.1 [F145 SEND] [F146 RECV] Instructions: Common Items ....................... 8-38.2.2 [F145 SEND] Data Transmission (MEWTOCOL-COM Master).............. 8-48.2.3 [F146 RECV] Data Reception (MEWTOCOL-COM Master) ................... 8-68.2.4 [F145 SEND] Data Transmission (MODBUS Master: Function CodeSpecification) ........................................................................................... 8-88.2.5 [F146 RECV] Data Reception (MODBUS Master: Function CodeSpecification) ......................................................................................... 8-108.2.6 [F145 SEND] data transmission (MODBUS master) ............................ 8-128.2.7 [F146 RECV] Data Reception (MODBUS Master) ................................ 8-148.2.8 [F159 MTRN] Serial Data Send / Receive Instruction ........................... 8-16