123
The COM normal operation supervision verifies:
*
•COM module alive state
Based on the update of a life cycle counter. If the COM module does not update
the life cycle counter for 500 ms, it is considered to be faulty. NOTE: Up to
release 2.5, this mechanism is implemented by the MODBUS and ETHERNET
modules.
The following table describes signalling/handling of the COM module faults:
Faults/Errors Signalling
Level
COM module configuration
data version
“Network communication” led becomes RED
HMI error message "WRONG COM VERSION"
SPA event “102E67”
3
COM module type “Network communication” led becomes RED
HMI error message "WRONG COMMODULE TYPE"
SPA event “102E66”
3
COM module not installed “Network communication” led becomes RED
HMI error message "COMMODULE NOT INSTALL"
SPA event “102E68”
3
COM module not detected “Network communication” led becomes RED
HMI error message "COMMODULE NOT DETECT"
SPA event “102E69”
3
COM module not
configured
“Network communication” led becomes RED
HMI error message "COMMODULE NOT CONFIG."
SPA event “102E70”
3
COM module not alive “Network communication” led becomes RED
3
AI20mA module (optional extension)
The AI20mA (20 mA analogue input module) is an optional module that can be
installed in the REF 542plus housing. Its supervision is done only if the AI20mA
module is detected at start-up or configured by REF542CONF. The supervision
verifies correct AI20mA start-up and correct AI20mA working status during normal
operation.
The AI20mA start-up supervision verifies:
*
AI20mA version
A common pre-defined pattern is used for AI20mA module detection and, if
detected, an internal version number is used to perform the compatibility check.
*
AI20mA firmware
No, or not valid, firmware detected.
*
AI20mA HW tests
The initial hardware test detected an error.
*
AI20mA configuration
Multifunction Protection and Switchgear Control Unit
Operator's manual
REF 542plusREF 542plus
1MRS755869
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