Schweitzer Engineering Laboratories SEL-701 - Table; SEL-701 Relay Control Subcommands; Table 6.5 SEL-701 Relay Control Subcommands

701 Motor Protection Relay Date Code 20010719
ASCII Serial Port Operation
Command Explanations
6.12
You can also use the ANALOG command to generate a current signal that
increases linearly. Replace the fixed percentage value with an R to ramp the signal
from zero to full scale over time. For example, the command ANA R 10 instructs the
relay to ramp the analog signal from zero to full scale, reaching full scale in ten
minutes. As above, you can stop the test by pressing any keyboard character key or the
space bar.
CONTROL (Level 2)
The CONTROL command is a two-step command that allows you to control
Relay Word bits RB1 through RB4. At the Access Level 2 prompt, type CON, a space,
and the number of the remote bit you wish to control (1–4). The relay repeats your
command followed by a colon. At the colon, type the Control subcommand you wish
to perform (see Tabl e 6 .5).
Table 6.5 SEL -701 Relay C ontrol Subcom mands
The following example shows the steps necessary to pulse Remote Bit 4 (RB4):
=>>CON 4 <ENTER>
CONTROL RB4: PRB 4 <ENTER>
=>>
You must enter the same remote bit number in both steps in the command. If the
bit numbers do not match, the relay responds “Invalid Command.” See Remote Control
Switches on page B.30 in Appendix B: SELogic® Control Equations & Relay Logic for
more information.
DATE (Level 1 or 2)
DATE displays the date stored by the internal calendar/clock. If the date format
setting DATE_F is set to MDY, the date is displayed as month/day/year. If the date
format setting is set to YMD, the date is displayed as year/month/day.
To set the date, type DATE mm/dd/yyyy <ENTER> if the Date Format setting is
MDY. If the Date Format setting is set to YMD, type DATE yyyy/mm/dd <ENTER>.
You can separate the month, day, and year parameters with spaces, commas, slashes,
colons, or semicolons. Figure 6.6 shows an exmaple DATE command execution,
changing the date to September 1, 1999.
Table 6.5 SEL-701 Relay Control Subcommands
Subcommand Description
SRB n Set Remote Bit n (“ON” position)
CRB n Clear Remote Bit n (“OFF” position)
PRB n Pulse Remote Bit n for 1/4 cycle (“MOMENTARY” position)