Dnp Communications - GE TRANSFORMER MANAGEMENT RELAY 745 Instruction Manual

5 SETPOINTS
PATH: SETPOINTS S1 745 SETUP
DNP
[ENTER] for more
• DNP PORT: Select the communication port that you will use for DNP.
• DNP POINT MAPPING: When enabled, the 120 User Map Values are included in the DNP Object 30 point list. For
more information, refer to Section 7.5: DNP Communications.
• TRANSMISSION DELAY: Select the minimum time from when a DNP request is received and a response issued. A
value of zero causes the response to be issued as quickly as possible.
• DATA LINK CONFIRM MODE: Select the data link confirmation mode desired for responses sent by the 745. When
Sometimes is selected, data link confirmation is only requested when the response contains more than one frame.
• DATA LINK CONFIRM TIMEOUT: Select a desired timeout. If no confirmation response is received within this time,
the 745 will re-send the frame if retries are still available.
• DATA LINK CONFIRM RETRIES: Select the maximum number of retries that will be issued for a given data link frame.
• SELECT/OPERATE ARM TIMEOUT: Select the duration of the select / operate arm timer.
• WRITE TIME INTERVAL: Select the time that must elapse before the 745 will set the "need time" internal indication
(IIN). After the time is written by a DNP master, the IIN will be set again after this time elapses. A value of zero disables
this feature.
• COLD RESTART INHIBIT: When disabled, a cold restart request from a DNP master will cause the 745 to be reset.
Enabling this setpoint will cause the cold restart request to initialize only the DNP sub-module.
When "Disabled" is selected, a cold restart request will cause loss of protection until the 745 reset
completes.
WARNING
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DNP
ð
DNP PORT:
ENTER
None
ESCAPE
DNP POINT MAPPING:
ESCAPE
Enabled
MESSAGE
TRANSMISSION DELAY:
ESCAPE
0 ms
MESSAGE
DATA LINK CONFIRM
ESCAPE
Mode: Never
MESSAGE
DATA LINK CONFIRM
ESCAPE
TIMEOUT: 1000 ms
MESSAGE
DATA LINK CONFIRM
ESCAPE
RETRIES: 3
MESSAGE
SELECT/OPERATE ARM
ESCAPE
TIMEOUT: 10000 ms
MESSAGE
WRITE TIME INTERVAL:
ESCAPE
0 min.
MESSAGE
COLD RESTART
ESCAPE
INHIBIT: Disabled
MESSAGE
745 Transformer Management Relay
5.3 S1 745 SETUP

5.3.4 DNP COMMUNICATIONS

Range: None, COM1, COM2, Front
Range: Enabled, Disabled
Range: 0 to 65000 ms in steps of 1
Range: Never, Always, Sometimes
Range: 1 to 65000 ms in steps of 1
Range: 0 to 100 in steps of 1
Range: 1 to 65000 ms in steps of 1
Range: 0 to 65000 min. in steps of 1
Range: Enabled, Disabled
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