Schweitzer Engineering Laboratories SEL-700G Series, Instruction Manual

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7.16
SEL-700G Relay Instruction Manual Date Code 20170814
Communications
SEL ASCII Protocol and Commands
Access Levels
Commands can be issued to the SEL-700G via the serial port or Telnet session
to view metering values, change relay settings, etc. The available serial port
commands are listed in the SEL-700G Relay Command Summary at the end of
this manual. These commands can be accessed only from the corresponding
access level, as shown in the SEL-700G Relay Command Summary. The
access levels are:
➤
Access Level 0 (the lowest access level)
➤
Access Level 1
➤
Access Level 2 (the highest access level)
➤
Access Level C (restricted access level, should be used under
direction of SEL only)
Access Level 0
Once serial port communication is established with the SEL-700G, the relay
sends the following prompt:
This is referred to as Access Level 0. Only a few commands are available at
Access Level 0. One is the ACC command. See the SEL-700G Relay
Command Summary at the end of this manual. Enter the ACC command at the
Access Level 0 prompt:
The ACC command takes the SEL-700G to Access Level 1. See Access
Commands (ACCESS, 2ACCESS, and CAL) on page 7.18 for more detail.
Access Level 1
When the SEL-700G is in Access Level 1, the relay sends the following
prompt:
See the SEL-700G Relay Command Summary at the end of this manual for the
commands available from Access Level 1. The relay can go to Access Level 2
from this level.
The 2AC command places the relay in Access Level 2. See Access Commands
(ACCESS, 2ACCESS, and CAL) for more detail. Enter the 2AC command at
the Access Level 1 prompt:
=
= ACC <Enter>
=>
=> 2AC <Enter>