Control Functions
PSI BOX PLUS+ Reference
GTL.
Sends The Go To Local Command.
_____
______________________________
Purpose.
The addressed command Go To Local is sent to the
__________
IEEE bus.
The GTL command is used to tell all the currently
listening devices to respond to their front panel, local, controls
rather than to the PSI BOX.
The PSI BOX asserts ATN and becomes the active
controller, then the IEEE command GTL, hex 01h decimal 1, is
sent over the IEEE bus. After the command has been sent the
ATN remains true, PSI BOX is the active controller.
The GTL command is used automatically in the LOCAL
routine but it can be called separately to initiate your own return
to local routines. The GTL command can also be sent by using
CMD 1 or CMD 129
Format.
GTL
_________
Params.
None.
_________
Returns.
None.
__________
Example.
________
_
BUS GTL
Bus Activity.
___________
_
assert ATN if not already so
GTL
Chapter 8
Page 105
