Drozerce Posted May 9, 2014 Report Share Posted May 9, 2014 HI guys, I'm finishing a project that includes Unitronics PLC V130-33-T38 and Wonderware Intouch Scada. I have successfully made the communication part between the PLC (Unitronics) and the PC (Intouch), it is communicating, but I still have problems: 1. When I set a command from the PC to the PLC, there is no problems so far, but when I should receive an information from the PLC to the PC, I have problems. The time for refreshment is too long (ex. 3,4 seconds). For example: I hit MB10 from PC as a command to start the motor. The motor starts, and as an information I should receive MB29 from the PLC that the motor started, but this variable i'm getting it after 3,4 second, sometimes more. 2. Also in UniOPC Server Event Log, I can see only the items that are going from the PC to the PLC, but not other way around. So, I see that MB10 has been written to item MB10 (Success), but I can't see any info about MB29. So, I'm not sure where to look for the problem, is it Intouch or UniOPC, or OPCLink. I don't know where to start looking. I have tried something with the time intervals in UniOPC and Intouch but the result was the same. Thanks, Quote Link to comment Share on other sites More sharing options...
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