GE P741

Settings
P74x/EN ST/N
a7
MiCOM P74
1, P742, P743
(ST) 4-
29
ST
Menu Text Default Setting
Setting Range
Step Size
Min. Max.
COMMUNICATIONS
RP2 Baud Rate 19200 bits/s 9600 bits/s, 19200 bits/s or 38400 bits/s
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.
1.3.6 “Commissioning tests” column
To help minimise the time required to test relays the relay provides several test facilities
under the ‘COMMISSION TESTS’ menu heading.
There are menu cells which allow the status of the opto-isolated inputs, output relay
contacts, internal digital data bus (DDB) signals and user-programmable LEDs to be
monitored. Additionally there are cells to test the operation of the output contacts,
user-programmable LEDs.
This column is visible when the “Commission tests” setting (“Configuration” column) =
“visible”.
1.3.6.1 P741
Menu Text Default Setting Available Settings
COMMISSION TESTS
Opto I/P Status 00000000
This menu cell displays the status of the relay’s opto-isolated inputs as a binary string, a ‘1’
indicating an energized opto-isolated input and a ‘0’ a de-energized one
Relay O/P Status 00000000
This menu cell displays the status of the digital data bus (DDB) signals that result in
energisation of the output relays as a binary string, a ‘1’ indicating an operated state and ‘0’
a non-operated state.
When the ‘Test Mode’ cell is set to ‘Enabled’, the ‘Relay O/P Status’ cell does not show the
current status of the output relays and hence can not be used to confirm operation of the
output relays. Therefore it will be necessary to monitor the state of each contact in turn.
Test Port Status 00000000
This menu cell displays the status of the eight digital data bus (DDB) signals that have been
allocated in the ‘Monitor Bit’ cells.
LED Status 00000000
This menu cell displays the status of the LEDs. that have been allocated in the ‘Monitor Bit’
cells, a ‘1’ indicating a particular LED is lit and a ‘0’ not lit.
Monitor Bit 1 Relay Label 01
0 to 2047
See PSL section for details
of digital data bus signals
The eight ‘Monitor Bit’ cells allow the user to select the status of which digital data bus
signals can be observed in the ‘Test Port Status’ cell or via the monitor/download port.
Monitor Bit 8 Relay Label 08 0 to 2047
The eight ‘Monitor Bit’ cells allow the user to select the status of which digital data bus
signals can be observed in the ‘Test Port Status’ cell or via the monitor/download port.