If open loop control is acceptable for your application, simply set both motors to open loop and use the same settings in EasyRoll and write your PLC logic to run both motors at the same time and in the same direction.
You have two choices if you wish to used closed loop speed control: and .
With this method you set up closed loop as described above for ZPA mode. In your PLC logic, you must run both motors at the same time and in the same direction.
Master / Slave
The ConveyLinx Module firmware has the capability when in PLC I/O mode to operate both motors at the same time by setting one motor as a master and its settings will be used for both motors. With this method, your PLC logic first configures the functionality and then only logically controls the master motor.
Unfortunately, the register to configure this functionality (4:0015) is not included in any of the PLC I/O mode assemblies. Your PLC code must utilize a MSG instruction to write to this configuration register.
The data is to be written to Register 4:0015 based on the following:
- Bit 0: Set for Left motor to be Master
- Bit 1: Set to make Right motor rotate opposite direction when Left is Master
- Bit 2: Set Right motor to be Master
- Bit 3: Set to make Left motor rotate opposite direction when Right is Master
- Bit 4: Always set to enable the functionality
You should use these bits as pairs. Either use bits 0 and 1 or use bits 2 and 3. Setting both bits 0 and 2 .
For example, if you set bit 0, then your program logic only needs to control the Left motor in the PLC I/O instance assembly and the Right motor will have its settings internally controlled by the module.