Function Code 06H - GE Multilin MM200 Communications Manual

MODBUS FUNCTIONS

Function Code 06H

2-6
For example, to request slave 17 to execute operation code 1 (reset), we have the following
master/slave packet format:
Table 2-3: MASTER/SLAVE PACKET FORMAT FOR FUNCTION CODE 05H
MASTER TRANSMISSION
SLAVE ADDRESS
FUNCTION CODE
OPERATION CODE
CODE VALUE
CRC
SLAVE RESPONSE
SLAVE ADDRESS
FUNCTION CODE
OPERATION CODE
CODE VALUE
CRC
The commands that can be performed by the MM200 using function code 05 can also be
initiated by using function code 16.
Operation Code
1
2
3
4
5
96
99
102
113
114
115
Modbus Implementation: Preset Single Register
MM200 Implementation: Store Single Setpoint
This command allows the master to store a single setpoint into the memory of a MM200
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 will contain the value
01F4. The master/slave packet format is shown below:
Table 2-4: MASTER/SLAVE PACKET FORMAT FOR FUNCTION CODE 06H
MASTER TRANSMISSION
SLAVE ADDRESS
FUNCTION CODE
CHAPTER 2: RS485 INTERFACE (MODBUS RTU)
BYTES EXAMPLE
1 11
1 05
2 00 01
2 FF 00
2 DF 6A
BYTES EXAMPLE
1 11
1 05
2 00 01
2 FF 00
2 DF 6A
Description
Reset
Lockout Reset
Stop
Start A
Start B
Clear Last Trip Data Prompt
Clear Counters
Clear Maintenance Timer
Reset Motor Information
Auto Mode
Manual Mode
BYTES EXAMPLE
1 11
1 06
MM200 MOTOR MANAGEMENT SYSTEM – COMMUNICATIONS GUIDE
DESCRIPTION
message for slave 17
execute operation
operation code 1
perform function
CRC error code
DESCRIPTION
message from slave
17
execute operation
operation code 1
perform function
CRC error code
DESCRIPTION
message for slave 17
store single setpoint