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Old November 15th, 2009, 05:33 AM   #6
iknowsomeplc
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Location: Dubai
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If ABB drive supports Modbus TCP, it can act as Modbus slave and Quantum PLC can use I/O Scan to control the drive.
I guess, you must have done the I/O Scanning configuration under the ethernet link ( either base CPU module or NOE module ) in Quantum. Remember that all modicon addressing starts with 1 ( and not 0 ) and hence there may be an offset of 1 in your register addressing.
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