mati99.94 Posted May 6 Report Posted May 6 (edited) Hello, I have a problem with communication between PLC NX102 and SCADA Zenon via CIP. I use 3400 variables in the project and two monitors. A large number of them are displayed or used in trends. So there are lags in refreshing variables. I increased the time of refreshing variables in SCADA, but the communication is still too slow. After reviewing the communication in WireShark, the longest times in communication occur on the PLC side. It takes about 70ms for the PLC to respond to SCADA. If I had set Task Period in Sysmac Studio to 2ms, it took 150-250ms to respond, now I have set Task Period to 10ms. Further increasing Task Period does not affect the communication speed. The response time of 70ms is normal, can it be shortened somehow? Edited May 6 by mati99.94 Quote
photovoltaic Posted May 12 Report Posted May 12 That is a lot of tags for CIP. Does your SCADA support OPC-UA? Quote
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