Using RSLinx OPC and Modbus through same comm. port?

I want to use the OPC driver w/RSLinx to communicate to a CompactLogix PLC.  The system already has a Modbus driver running.  Will the RSLinx driver interfere with teh Modbus driver?
Mike C.

RSLinx and Lookout, the two being different apps, will not be able to share the same COM port. 
-Khalid

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