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Installation and Configuration
2–22 TM-XR9B-01XN
Local Mode Operation
In local mode operation, you set the voltage and current output levels and
the OVP trip level with controls located on the front panel. Refer to the
operating manual for a description of the functions available at the front
panel.
While in local mode operation, you can change power supply control to
remote mode by ensuring that REN is ON, then sending any software
command and OUT ON to restore the output. Return to local mode by
pressing the front panel LOCAL button, unless Local Lockout is in effect.
If LLO is in effect, use the GTL command to send the power supply into
local mode, or use the REN OFF command to turn off LLO and return the
power supply to local mode.
Example:
Remote Enable (REN) Command
You can use the Remote Enable command to toggle between local mode
and remote mode. The default setting at startup is REN ON. With the
remote enable command set at REN ON, you can return the power supply
to remote mode whenever you send any command from the computer.
Any time that you change from local to remote mode during a session, the
output is programmed to turn off, since the remote mode settings may be
different from the local mode settings. Send the OUT ON command to
restore the output.
You can turn off Remote Enable and move power supply control to the
front panel by sending the REN OFF command. If the Local Lockout
condition is in effect, sending the REN OFF command will turn off the
LLO condition before sending the unit into local mode.
To check whether the power supply is remote enabled, use the REN?
query command.
Example:
Press the LOCAL button Set unit to local mode
Id? Put the unit into remote mode
(Use any command to do this.)
Press the LOCAL button
Return to local mode.
REN ON Enable the power supply to be sent into
remote mode
VSET 10;ISET 2 Put the unit into remote operation mode
(Use any command to do this.)
TM-XR9B-01XN.book Page 22 Monday, April 19, 2004 9:00 AM