Isometer® Answers The Master; Writing To Modbus Registers (Parameter Setting); Master Sends A Command To The Isometer - Bender ISOMETER isoEV425 Manual

Data access using the Modbus RTU protocol
7.1.2 ISOMETER® answers the Master
Byte
Byte 0 ISOMETER® Modbus address
Byte 1 Function code
Byte 2 Number of data bytes
Byte 3, 4 Data
Byte 7, 8 CRC16 Checksum

7.2 Writing to Modbus registers (parameter setting)

Registers in the device can be modified with the Modbus command 0x10 (set
multiple registers). Parameter registers are available from address 3000. The
content of the register is listed in the table on
7.2.1 Master sends a command to the ISOMETER®
In this example, the master addresses the ISOMETER® with address 3 and re-
quests that the content of the register with address 3003 is set to 2.
Byte
Byte 0 ISOMETER® Modbus address
Byte 1 Function code
Byte 2, 3 Start register
Byte 4, 5 Number of registers
Byte 6 Number of data bytes
Byte 7, 8 Data
Byte 9, 10 CRC16 Checksum
isoEV425_D00126_09_M_XXEN/03.2019
Name
Name
Example
0x03
0x03
0x02
0x0047
0x81B6
Page 43.
0x03
0x10
0x0BBB
0x0001
0x02
0x0002
0x9F7A
Example
41