Fluke 225C Programming Reference Manual page 28

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Purpose:
Sets the ScopeMeter in the local operation mode
so the keypad is enabled.
Also refer to the GR (Go to Remote) command.
Command Syntax:
GL<cr>
Response Syntax:
<acknowledge><cr>
Example:
The following example uses the GR (GO TO REMOTE) command
(refer to the description for this command) to set the
ScopeMeter in the REMOTE state so that the keypad
is disabled. After that, the GL (GO TO LOCAL) command
is sent so that the keypad is enabled again.
Page 3.17
GO TO LOCAL GL