1
P94MOD01B
6
Commissioning
6.1 Drive Monitoring
The network will read the drive parameters as long as Modbus communications are enabled. Set the variable
#175=1 (Modbus); configure variables #172-173 correctly and program the Modbus Master to poll the
appropriate register.
NOTE:
The complete list of variables can be found in Appendix A of the PositionServo
Programming Manual (PM94P01).
6.2 Controlling the Drive
Controlling the drive over Modbus is essentially identical to controlling the drive from the User’s program.
The list of variables and their functionality is identical for both User’s program and Modbus control. Refer to
the variable table in the PositionServo Programming Manual (PM94P01) for the functionality of the drive’s
variables.
6.3 Changing Drive Parameters
To change drive parameters, simply write to the appropriate register as listed in the PositionServo Programming
Manual (PM94P01)
7
Programming Parameters
NOTE:
The complete list of variables can be found in Appendix A of the PositionServo
Programming Manual (PM94P01).
Drive variables #172-176 are RS-485 communication programming parameters specifically for configuration
of the RS-485 interface.
7.1 Negative Number Transmission
Drive variables 51, 60, 79, 81 and 90 are signed integer values and could be negative (refer to drive User
and Programming manual for details on these parameters). These registers are sent over the modbus
communications in signed internal units.
