10.39
Date Code 20080103 Instruction Manual SEL-351S Relay
Serial Port Communications and Commands
Command Explanations
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FEEDER 1 Date: 02/02/97 Time: 09:40:34.611
STATION A
Active Group = 2
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If any of the SELOGIC control equations settings SS1 through SS6 are asserted
to logical 1, the active setting group may not be change with the GRO
command—SEL
OGIC control equations settings SS1 through SS6 have
priority over the GRO command in active setting group control.
For example, assume setting Group 1 is the active setting group and the SS1
setting is asserted to logical 1 (e.g., SS1 = IN101 and optoisolated input IN101
is asserted). An attempt to change to setting Group 2 with the GRO 2
command will not be accepted:
==>GRO 2 <Enter>
No group change (see manual)
Active Group = 1
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For more information on setting group selection, see Multiple Setting Groups
on page 7.19.
OPE Command (Open Breaker)
The OPE (OPEN) command asserts Relay Word bit OC for 1/4 cycle when it
is executed. Relay Word bit OC can then be programmed into the TR
SEL
OGIC control equation to assert the TRIP Relay Word bit, which in turn
asserts an output contact (e.g., OUT101 = TRIP) to trip a circuit breaker. See
Figure 5.1 and bottom part of Figure 6.10.
To issue the OPE command, enter the following:
==>OPE <Enter>
Open Breaker (Y/N) ? Y <Enter>
Are you sure (Y/N) ? Y <Enter>
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Typing N <Enter> after either of the above prompts will abort the command.
The OPE command is supervised by the main board Breaker jumper (see
Table 2.6 and Table 2.7). If the Breaker jumper is not in place (Breaker jumper
= OFF), the relay does not execute the OPE command and responds:
Aborted: No Breaker Jumper
PUL Command (Pulse Output Contact)
The PUL command allows you to pulse any of the output contacts for a
specified length of time. The command format is:
PUL x y
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