I think the ABB PLC Series 90 (07 KT 97) supports MODBUS which would give you several options which vary in cost/time.
You could get NI's Industrial Automation OPC Servers which have a Modbus object and use Datasocket as per the KnowledgeBase item that discusses communicating with MODBUS devices in LabVIEW: http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/2cd034f223c650e9862569570041995c?OpenDocument You could move up to the LabVIEW DSC. http://sine.ni.com/apps/we/nioc.vp?cid=10418&lang=US You could get a third party product like BusVIEW or ModbusVIEW. Or you can get freeware that you'd spend some time adapting for the ABB. A good list of these is at http://www.mooregoodideas.com/FAVIs/PLC.htm
