06: Store Single Setpoint - GE 239 Instruction Manual

7 COMMUNICATIONS
• Modbus Implementation:Preset Single Register
• 239 Implementation:
This command allows the master to store a single setpoint into the memory of a 239. The slave
response to this function code is to echo the entire master transmission.
a) MESSAGE FORMAT AND EXAMPLE
Request slave 11 to store the value 0064 in Setpoint address 1020.
After the transmission in this example is complete, Setpoints address 1020 will contain the value
0064.
Master Transmission
SLAVE ADDRESS
FUNCTION CODE
DATA STARTING ADDRESS
DATA
CRC
Slave Response
SLAVE ADDRESS
FUNCTION CODE
DATA STARTING ADDRESS
DATA
CRC
7
7-6
Courtesy of NationalSwitchgear.com
Store Single Setpoint
Bytes
- 1 byte
- 1 byte
- 2 bytes
- 2 bytes
- 2 bytes
Bytes
- 1 byte
- 1 byte
- 2 bytes
- 2 bytes
- 2 bytes
239 Motor Protection Relay
7 COMMUNICATIONS

7.10 06: STORE SINGLE SETPOINT

Example (hex)
11 message for slave 11
06 store single setpoint
10 Setpoint address 1020
20
00 data for address 1020
64
8F CRC calculated by the master
BB
Example (hex)
11 message from slave 11
06 store single Setpoint
10 Setpoint address 1020
20
00 data stored in address 1020
64
8F CRC calculated by slave
BB
GE Multilin