Cryan9954

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About Cryan9954

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  1. Cryan9954 started following Honeywell HC900

  2. Honeywell HC900

    Cryan9954 posted a topic in Other PLCs

    I am having trouble with a HC900 C50 CPU. It’s connected to a hakki HMI and on certain instruction performed on the screen it faults out the CPU. I have 3 strobes on the led which in the manual indicates a CPU prefetch abort error. It says to replace the CPU which I have done but the fault occurs on the new one too. I have replaced the HMI and comms cable between them but nothing has helped stop the fault occurring. Any ideas on next actions welcome