Update Documentation
P44x/EN AD/E44
MiCOM P441, P442 & P444
Page 77/82
9.10.5.2
InterMiCOM Statistics & Diagnostics
Once the relay operation has been confirmed using the loopback test facilities, it will be
necessary to ensure that the communications between the two relays in the scheme are
reliable. To facilitate this, a list of channel statistics and diagnostics are available in the
InterMiCOM COMMS column and are explained below:
Ch Statistics
Rx Direct Count
No. of Direct Tripping messages received with the correct message
structure and valid CRC check.
Rx Perm Count
No. of Permissive Tripping messages received with the correct
message structure.
Rx Block Count
No. of Blocking messages received with the correct message structure.
Rx NewDataCount No. of different messages received.
Rx ErroredCount
No. of incomplete or incorrectly formatted messages received.
Lost Messages
No. of messages lost within the previous time period set in “Alarm
Window” cell.
Elapsed Time
Time in seconds since the InterMiCOM channel statistics were reset.
Ch Diagnostics
OK = DCD is energised
FAIL = DCD is de-energised
Absent = InterMiCOM board is not fitted
Data CD Status
Indicates when the DCD
line (pin 1) is energised.
Unavailable = hardware error present
OK = valid message structure and
synchronisation
FAIL = synchronisation has been lost
Absent = InterMiCOM board is not fitted
FrameSync Status Indicates when the
message structure and
synchronisation is valid.
Unavailable = hardware error present
OK = acceptable ratio of lost messages
FAIL = unacceptable ratio of lost messages
Absent = InterMiCOM board is not fitted
Message Status
Indicates when the
percentage of received
valid messages has
fallen below the
“IM Msg Alarm Lvl”
setting within the alarm
time period.
Unavailable = hardware error present
OK = channel healthy
FAIL = channel failure
Absent = InterMiCOM board is not fitted
Channel Status
Indicates the state of the
InterMiCOM
communication channel.
Unavailable = hardware error present
OK = InterMiCOM hardware healthy
Read Error = InterMiCOM hardware failure
Write Error = InterMiCOM hardware failure
IM H/W Status
Indicates the state of the
InterMiCOM hardware.
Absent = InterMiCOM board is either not
fitted or failed to initialise
TABLE 7
It is possible to hide the channel diagnostics and statistics from view by setting the “Ch
Statistics” and/or “Ch Diagnostics” cells to “Invisible”. All channel statistics are reset when
the relay is powered up, or by user selection using the “Reset Statistics” cell.
Summary of Contents for MiCOM P441
Page 1: ...MiCOM P441 P442 P444 Numerical Distance Protection VC2 x Technical Guide P44x EN T E44...
Page 2: ......
Page 4: ...P44x EN T E44 Technical Guide Page 2 2 MiCOM P441 P442 P444 BLANK PAGE...
Page 5: ...Pxxxx EN SS C11 SAFETY SECTION...
Page 6: ......
Page 8: ...Pxxxx EN SS C11 Page 2 10 Safety Section BLANK PAGE...
Page 17: ...Update Documentation P44x EN AD E44 MiCOM P441 P442 P444 UPDATE DOCUMENTATION VERSION C2 X...
Page 18: ......
Page 22: ...P44x EN AD E44 Update Documentation Page 4 82 MiCOM P441 P442 P444 BLANK PAGE...
Page 23: ...Update Documentation P44x EN AD E44 MiCOM P441 P442 P444 Page 5 82 P44X EN IT E33 INTRODUCTION...
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Page 96: ...P44x EN AD E44 Update Documentation Page 78 82 MiCOM P441 P442 P444 BLANK PAGE...
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Page 100: ...P44x EN AD E44 Update Documentation Page 82 82 MiCOM P441 P442 P444 BLANK PAGE...
Page 101: ...Introduction P44x EN IT E33 MiCOM P441 P442 P444 INTRODUCTION...
Page 102: ......
Page 104: ...P44x EN IT E33 Introduction Page 2 24 MiCOM P441 P442 P444 BLANK PAGE...
Page 127: ...Relay Description P44x EN HW E33 MiCOM P441 P442 P444 RELAY DESCRIPTION...
Page 128: ......
Page 132: ...P44x EN HW E33 Relay Description Page 4 44 MiCOM P441 P442 P444 BLANK PAGE...
Page 152: ...P44x EN HW E33 Relay Description Page 24 44 MiCOM P441 P442 P444 Example isolated AC fault...
Page 153: ...Relay Description P44x EN HW E33 MiCOM P441 P442 P444 Page 25 44...
Page 173: ...Application Notes P44x EN AP E33 MiCOM P441 P442 P444 APPLICATION NOTES...
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Page 180: ...P44x EN AP E33 Application Notes Page 6 220 MiCOM P441 P442 P444 BLANK PAGE...
Page 357: ...Application Notes P44x EN AP E33 MiCOM P441 P442 P444 Page 183 220...
Page 364: ...P44x EN AP E33 Application Notes Page 190 220 MiCOM P441 P442 P444 BLANK PAGE...
Page 394: ...P44x EN AP E33 Application Notes Page 220 220 MiCOM P441 P442 P444 BLANK PAGE...
Page 395: ...Technical Data P44x EN TD E33 MiCOM P441 P442 P444 TECHNICAL DATA...
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Page 400: ...P44x EN TD E33 Technical Data Page 4 30 MiCOM P441 P442 P444 BLANK PAGE...
Page 427: ...Installation P44x EN IN E33 MiCOM P441 P442 P444 INSTALLATION...
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Page 430: ...P44x EN IN E33 Installation Page 2 10 MiCOM P441 P442 P444 BLANK PAGE...
Page 438: ...P44x EN IN E33 Installation Page 10 10 MiCOM P441 P442 P444 BLANK PAGE...
Page 439: ...Commissioning P44x EN CM E33 MiCOM P441 P442 P444 COMMISSIONING...
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Page 494: ...P44x EN CM E33 Commissioning Page 54 54 MiCOM P441 P442 P444 BLANK PAGE...
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Page 498: ...P44x EN RS E33 Commissioning Test Record Sheets Page 2 10 MiCOM P441 P442 P444 BLANK PAGE...
Page 507: ...Connection Diagrams P44x EN CO E33 MiCOM P441 P442 P444 CONNECTION DIAGRAMS...
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Page 510: ...P44x EN CO E33 Connection Diagrams Page 2 12 MiCOM P441 P442 P444 BLANK PAGE...
Page 520: ...P44x EN CO E33 Connection Diagrams Page 12 12 MiCOM P441 P442 P444 BLANK PAGE...
Page 521: ...Courrier Data Base P44x EN GC E44 MiCOM P441 P442 P444 CONFIGURATION MAPPING...
Page 610: ...Courier Data Base P44x EN GC E44 MiCOM P441 P442 P444 DEFAULT PROGRAMMABLE SCHEME LOGIC PSL...
Page 615: ...Menu Content Tables P44x EN HI E44 MiCOM P441 P442 P444 MENU CONTENT TABLES...
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Page 634: ...P44x EN VC E44 Hardware Software Version Page 8 8 MiCOM P441 P442 P444 BLANK PAGE...
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