7.34
SEL-700G Relay
Instruction Manual
Date Code 20170814
Communications
SEL ASCII Protocol and Commands
L_D Command (Load Firmware)
Use the L_D command (see Table 7.30) to load firmware. See Appendix A:
Firmware and Manual Versions for information on changes to the firmware
and instruction manual. See Appendix B: Firmware Upgrade Instructions for
further details on downloading firmware.
Only download firmware to the front port.
LOOPBACK Command
The LOO command (see Table 7.31) is used for testing the M
IRRORED
B
ITS
communications channel for proper communication. For more information on
M
IRRORED
B
ITS
Communications. With the
transmitter of the communications channel physically looped back to the
receiver, the M
IRRORED
B
ITS
addressing will be wrong and ROK will be
deasserted. The LOO command tells the M
IRRORED
B
ITS
software to
temporarily expect to see its own data looped back as its input. In this mode,
LBOK asserts if error-free data are received. The LOO command, with just
the channel specifier, enables the loopback mode on that channel for five
minutes, while the inputs are forced to the default values.
Table 7.28
LDP Commands
Command
Description
Access Level
LDP row1 row2
LDP date1 date2
Use the LDP command to display a numeric
progression of all load profile report rows. Use the
LDP command with parameters to display a numeric
or reverse numeric subset of the load profile rows.
1
LDP C
Use this command to clear the load profile report
from nonvolatile memory.
1
Table 7.29
LDP Command Parameters
Parameter
Description
row1 row2 Append
row1 to return a chronological progression of the first row1
rows. Append row1 and row2 to return all rows between row1 and
row2, beginning with row1 and ending with row2. Enter the smaller
number first to display a numeric progression of rows through the
report. Enter the larger number first to display a reverse numeric
progression of rows.
date1 date2
Append date1 to return all rows with this date. Append date1 and
date2 to return all rows between date1 and date beginning with date1
and ending with date2. Enter the oldest date first to display a
chronological progression through the report. Enter the newest date
first to display a reverse chronological progression. Date entries are
dependent on the date format setting DATE_F.
Table 7.30
L_D Command (Load Firmware)
Command
Description
Access Level
L_D
Download firmware to the control.
2
Summary of Contents for SEL-700G Series
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