CLRS Series RS485 Closed Loop Stepper Drive User Manual
1.3.2 Practical Application Scenarios
(1) Controlled by Modbus RS485 (PLC or HMI)
The RS485 (Modbus-RTU protocol) communication triggers the drive's PR motion register, which can realize the
drive's path motion. Both PLC and HMI have RS485 communication so user can choose one or both. Using PLC
can write more complex programs to let motion more intelligent, and the HMI can monitor and modify the drive
parameters in real time.
(2) Controlled by I/O (switch signal or PLC)
The user only needs to turn off the switch signal to realize the PR motion, which is simple to control and low-cost
design.
User can also use PLC I/O module to realize PR motion, which is more intelligent than switch signal control.
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