GE P742

Settings
P74x/EN ST/N
a7
MiCOM P74
1, P742, P743
(ST) 4-
35
ST
Menu Text Default Setting
Setting Range
Step Size
Min. Max.
INTERMICOM COMMS
Source Address 1 0 10 1
Receive Address 2 0 10 1
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 9600 600 / 1200 / 2400 / 4800 / 9600 / 19200
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 Invisible Invisible / Visible
Activates or hides the channel statistics. When visible is selected, the following menus are
displayed. Otherwise, next menu is “Ch Diagnostics”.
Rx Direct Count Data
Number of Direct Tripping messages received with the correct message structure and valid
CRC check.
Rx Perm Count Data
Number of Permissive Tripping messages received with the correct message structure.
Rx Block Count Data
Number of Blocking messages received with the correct message structure
Rx NewDataCount Data
Number of different messages received.
Rx ErroredCount Data
Number of incomplete or incorrectly formatted messages received.
Lost messages Data
Number of messages lost within the previous time period set in “Alarm Window” cell.
Elapsed Time Data
Time in seconds since the InterMiCOM channel statistics were reset.
Reset Statistics No Yes / No
Reset channel statistics command.
Ch Diagnostics Invisible Invisible / Visible
Activates or hides the channel diagnostics. When visible is selected, the following menus
are displayed. Otherwise, next menu is “loopback mode”.
Data CD Status OK / Fail / Absent / Unavailable
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 OK / Fail / Absent / Unavailable
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