Schweitzer Engineering Laboratories SEL-421-4 - Page 1222

14.16
SEL-400 Series Relays Instruction Manual Date Code 20171006
ASCII Command Reference
Command Description
COM RTC
Use the COM RTC to get a report on the status of the configured synchrophasor
client channels.
NOTE: Not all SEL-400 series relays
support synchrophasors.
COM RTC c C and COM RTC c R
The COM RTC C and COM RTC R commands clear/reset the maximum
packet delay. The C and R options are identical.
CONTROL nn
Use the CONTROL nn command to set, clear, or pulse internal Relay Word bits.
Remote bits in SEL
OGIC control equations are similar to hardwired control
inputs, in that you use these bits to affect relay operation from outside sources.
For control inputs, external input to the relay comes through the rear panel; in the
case of the CON nn command, external control signals come through the com-
munications ports. See Remote Bits on page 5.11 for information on remote bits.
If you enter CON nn with no set, clear, or pulse option specified, the relay
responds,
Control RBnn:. You must then provide the control action (set, clear, or
pulse) that you want to perform. (The relay checks only the first character; you
can type Set and Clear.) When you issue a valid CON command, the relay per-
forms the control action immediately and displays
Remote Bit Operated.
Ta b l e 1 4. 37 CO M RTC Co m m a n d
Command
a
a
Parameter c is A, B, or absent for Channel A, Channel B, or all enabled channels, respectively.
Description Access Level
COM RTC Return a report describing the communications on all
enabled synchrophasor client channels.
1, B, P, A, O, 2
COM RTC A Return a report describing the communications on syn-
chrophasor client Channel A.
1, B, P, A, O, 2
COM RTC B Return a report describing the communications on syn-
chrophasor client Channel B.
1, B, P, A, O, 2
Ta b l e 1 4. 38 C O M R TC c C and COM RTC c R Command
Command Description Access Level
COM RTC C Clear/reset the maximum packet delay on all enabled
synchrophasor client channels.
P, A, O, 2
COM RTC A R Clear/reset the maximum packet delay on synchrophasor
client Channel A.
P, A, O, 2
COM RTC B C Clear/reset the maximum packet delay on synchrophasor
client Channel B.
P, A, O, 2
Ta b l e 1 4. 39 CO N nn Command
Command Description Access Level
CON nn
a
C
a
Parameter nn is the remote bit reference for RB nn.
Clear Remote Bit nn. P, A, O, 2
CON nn P Pulse Remote Bit nn for one processing cycle. P, A, O, 2
CON nn S Set Remote Bit nn. P, A, O, 2