NEW LCNP4 Local Control Network Processor PC Board 51403299-200 Rev B

NEW LCNP4 Local Control Network Processor PC Board 51403299-200 Rev B Description:

Unik You
unik@cambia.cn
+86 18030205725
   

Hard/Severe failure on a non-redundant controller causes a loss-of-control and lossof-view. The I/O modules associated with the controller force their outputs to safe values. If capable, the failed controller reboots into the FAIL state and captures diagnostic data which may contain internal state events that occurred prior to a failure. The CTools utility can be used to retrieve the diagnostic data.

Hardware diagnostics are executed within the controller during normal operations. Some diagnostics execute frequently, but all diagnostics are designed to complete within eight hours (the Diagnostic Test Interval). Once the controller's Power-On Self Test and startup routines are completed successfully, these diagnostics execute to detect any of an array of faults that might cause degradation in controller operation.

Test of the RAM location where the controller's Application Image executes has detected (and corrected) a number of bit errors which have exceeded the acceptable threshold. Possible hardware failure which may affect controller operation.