Instruction References8-88.2.4 [F145 SEND] Data Transmission (MODBUS Master: Function CodeSpecification) Instruction formatDT20 H10 H20S2 D nR0F145 SEND DT10S1 Devices that can be specified (indicated by ●)Oper-ands WX WY WR WL SV EV DT LD In SWR SDTConstant Indexmodifier(*1)K HS1 ● ● ● ● ● ● ● ● ● ● ● ● ●S2 ● ● ● ● ● ● ● ● ● ● ●D ● ● ● ● ● ● ● ● ●n ● ● ● ● ● ● ● ● ● ●(*1): A character constant cannot be specified. OperandsItems Settings Setting rangeS1 Specify the COM port No. of a master unit, send MODBUS command, andthe unit number of a destination unit. (Note 1)S2 Specification ofa master unit Operation memory area that stores data to be sent.D Specification ofa destination unit Specify a MODBUS address H0 to HFFFFn Specification ofa destination unit Specify the number of send data. (Note 1) (Note 2) 1 to 127 words1 to 2040 bits(Note 1): In [S1], specify the combination of the COM port No. of a master unit, MODBUS function code and the unitnumber of a destination unit. When the COM port No. is 0, specify HF for the highest digit.Example: In the case of COM port 1, MODBUS function code 6, and destination unit No. 10, specify H160A.[S1]：COM port(H1 / H2 / HF)Unit No. (H01 to HFF)(1 to 255)Command(H5 to H6)(Note 2): Depending on the operation memory type specified in operand [S1] and the number of send data specifiedin operand [n], the transfer method and the function code of MODBUS command to be sent vary.Device typespecified for [S2]TransfermethodNumber ofsend data [n] MODBUS command to be sent16-Bit device:WX, WY, WR, WL, DT,LDRegistertransmission1 Preset single register (06)2 to 127 HF: Force multiple coils (15)H10: Preset multiple registers (16)1-Bit device:X, Y, R, LBittransmission1 H5: Force single coil (05)2 to 2040 HF: Force multiple coils (15):(Note 3): For the number of send data [n], specify the number of words in the case of register transfer, and specify thenumber of bits in the case of bit transfer.(Note 4): When “0” is specified for the destination unit number, global transfer is applied. In this process, there is noresponse message from a destination unit.
