Schneider Electric Altivar 212 Welder User Manual


 
Modbus services
S1A53844 01/2011 37
Write multiple registers (16)
Function 16 = 16#10, quantity =1
This function code is used to write a block of contiguous registers (1 to approx. 120 registers). Read only
parameters can't be written.
Request:
Response:
Error response:
Refer to "Error response", page 41
.
Example: Write value 60Hz in the parameter [Frequency reference from serial comm.] (FA01) in Altivar 212
slave 1.
Request:
Response:
Slave no. Function
code
Starting
address
Quantity of register Byte count First register value ------- CRC16
10
00
(fixed)
01
(fixed)
02 (fixed)
1 byte 1 byte 2 bytes 2 bytes 1 byte 2 bytes 2 bytes
Slave no. Function code Starting address Quantity of register CRC16
10
00 (fixed) 01 (fixed)
1 byte 1 byte 2 bytes 2 bytes 2 bytes
Slave no. Function code
90
Exception code
CRC16
1byte 1byte 1byte 2 bytes
01 10 FA 01 00 01 02 17 70 F3 9A
01 10 FA 01 00 01 60 D1