Function Code 06H (Store Single Setpoint) - GE Multilin 850 Communications Manual

FUNCTION CODE 06H (STORE SINGLE SETPOINT)

Function Code 06H (Store Single Setpoint)
11-6
Modbus Implementation: Preset Single Register
8 Series relay Implementation: Store Single Setpoint
The command allows the master to store a single setpoint into the memory of an
8 Series relay. The slave response to this function code is to echo the entire master
transmission.
For example, request slave 17 to store the value 2 in setpoint address 04 5C. After the
transmission in this example is complete, setpoints address 04 5C contains the value 0002.
The master/slave packet format is shown next.
Table 11-7: Master Packet Format for Function Code 06H
MASTER TRANSMISSION
SLAVE ADDRESS
FUNCTION CODE
DATA STARTING ADDRESS
DATA
CRC (low, high)
Table 11-8: Slave Packet Format for Function Code 06H
SLAVE RESPONSE
SLAVE ADDRESS
FUNCTION CODE
DATA STARTING ADDRESS
DATA
CRC (low, high)
ASE 2000 V2 Example
--> 00 00 00 00 00 06 FE 06 4A 44 03 E8
--> 00 00 00 00 00 06 FE 06 4A 44 03 E8
BYTES EXAMPLE
1 FE
1 06
2 4A 44
2 03 E8
2 CB 76
BYTES EXAMPLE
1 FE
1 06
2 4A 44
2 03 E8
2 CB 76
8 SERIES PROTECTIVE RELAY PLATFORM – COMMUNICATIONS GUIDE
CHAPTER 11: MODBUS PROTOCOL
DESCRIPTION
message for slave 254
store single setpoint
setpoint address 4A 44
data for setpoint address 4A 44
CRC error code
DESCRIPTION
message from slave 254
store single setpoint
setpoint address 4A 44
data for setpoint address 04A 44
CRC error code