Date Code 20010719 701 Motor Protection Relay
ASCII Serial Port Operation
Serial Port Access Levels
6.7
Serial Port Access Levels
The available serial port commands are listed in Table 6.4 on page 6.8. Some
commands are not available at Access Level 1 for security reasons. All commands are
available at Access Level 2.
Access Level 1
Access Level 1 is the lowest access level. The relay serial ports are initially in
Access Level 1 when you energize the relay. If left in Access Level 2, serial ports
automatically return to Access Level 1 after a settable inactivity period. When the relay
is in Access Level 1, the relay sends the following prompt when you press <ENTER>
or after a command response is finished:
=>
The Access Level 1 commands primarily allow the user to look at information
(such as settings and metering) but not to change it.
Access Level 2
The Access Level 2 commands primarily allow the user to change relay settings,
reset data buffers, and control relay outputs. If left in Access Level 2, serial ports
automatically return to Access Level 1 after a settable inactivity period. All Access
Level 1 commands are also available in Access Level 2.
When the relay is in Access Level 2, the relay sends the following prompt when
you press <ENTER> or after a command response is finished:
=>>
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