AC 500 Communication
In One of my Project,There is frequently communication (OPC) disturbance between AC500 (PM590 ETH)HA Redundants Systems (3NO'S) to SCADA System (Compact HMI 800-1No), so please suggest me how to come over from this problem.
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- New Problem or old problem ?
- When did the problem start ?
- How long does the problem last ?
- What diagnostic messages do you get ?
-- Compact HMI Alarms and Events ?
-- Windows Message log ?
- Can you isolate where the problem is ....
-- One PLC or some PLC's at different times ?
-- All PLCs at the same time ?
-- Network switches, routers, cables etc
-- Compact HMI service failure ?
-- Any other equipment affected ?
-- Any Equipment not affected ?
Answering these questions should help you narrow down what might or might not be causing the problem. From the information you give there's really no way to diagnose what might be the cause.