GE P741 Technical Manual page 105

Settings
MiCOM P741, P742, P743
Menu Text
INTERMICOM COMMS
Source Address
Receive Address
The "source" and "receive" addresses are used to synchronize remote and local relays.
Both relays must be programmed with a unique pair of addresses that correspond with
each other in the "Source Address" and "Receive Address" cells
Baud rate
This cell controls the communication speed between relay and master station. It is
important that both relay and master station are set at the same speed setting.
Ch Statistics
Activates or hides the channel statistics. When visible is selected, the following menus are
displayed. Otherwise, next menu is "Ch Diagnostics".
Rx Direct Count
Number of Direct Tripping messages received with the correct message structure and valid
CRC check.
Rx Perm Count
Number of Permissive Tripping messages received with the correct message structure.
Rx Block Count
Number of Blocking messages received with the correct message structure
Rx NewDataCount
Number of different messages received.
Rx ErroredCount
Number of incomplete or incorrectly formatted messages received.
Lost messages
Number 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.
Reset Statistics
Reset channel statistics command.
Ch Diagnostics
Activates or hides the channel diagnostics. When visible is selected, the following menus
are displayed. Otherwise, next menu is "loopback mode".
Data CD Status
Indicates when the "Data Carrier Detect" (DCD) line (pin 1) is energised.
OK = DCD is energised, FAIL = DCD is de-energised, Absent = InterMiCOM board is not
fitted, Unavailable = hardware error present
FrameSync Status
Indicates when the message structure and synchronisation is valid.
OK = valid message structure and synchronisation ,FAIL = synchronisation has been
lost, Absent = InterMiCOM board is not fitted, Unavailable = hardware error present
Default Setting
1 0
2 0
9600 600 / 1200 / 2400 / 4800 / 9600 / 19200
Invisible Invisible / Visible
Data
Data
Data
Data
Data
Data
Data
No Yes / No
Invisible Invisible / Visible
OK / Fail / Absent / Unavailable
OK / Fail / Absent / Unavailable
P74x/EN ST/Na7
Setting Range
Min. Max.
10
10
(ST) 4-35
Step Size
1
1
ST