COMMUNICATIONS GUIDE RS485 INTERFACE (MODBUS RTU)
MM300 MOTOR MANAGEMENT SYSTEM – COMMUNICATIONS GUIDE 49
Performing Commands Using Function Code 10H

Commands can be performed using function code 16 as well as function code 5. When

using FUNCTION CODE 16, the Command Function register must be written with a value of

5. The Command Operation register must be written with a valid command operation

number. The Command Data registers must be written with valid data; this is dependent

upon the command operation.

For example, consider a request for slave 17 to perform command operation 1 (RESET): The

master/slave packets have the following format:

Bit 8 Forward Limit
Bit 9 Reverse Limit
Bit 10 Starts/Hr Inhibit
Bit 11 Time Between Inhibit
Bit 15 Comms Ctrl Active
Bit 16 Hard Wired Ctrl Active
Bit 17 Field Ctrl Active
Bit 18 MCC Ctrl Active
Bit 19 Process ILock A Stop
Bit 20 Process ILock B Stop
Bit 21 Process ILock C Stop
Bit 22 Process ILock D Stop
Bit 23 Process ILock E Stop
Bit 24 Process ILock F Stop
Bit 25 Process ILock G Stop
Bit 26 Process ILock H Stop
Bit 27 Process ILock I Stop
Bit 28 Process ILock J Stop
FC192 32 bits Ctrl Element Status 2
Bit 0 Access Switch
Bit 1 Test Switch
Bit 10 Remote Reset
Bit 11 Lockout Reset
Bit 13 Pre-Contactor
Bit 20 Fuse Fail Inhibit
Bit 21 Phase Reversal Inhibit
Bit 22 Low Aux Voltage Inhibit
FC193 32 bits Ctrl Status 3 (Reserved)
FC194 32 bits Ctrl Status 4 (Reserved)
FC212 16 bits LCD Test Paint Color
0None
1Red
2 Green
3Blue
Code Type Definition