Local, Remote,
The local, remote, and remote with local lockout modes may be used for
and Local
various degrees of front-panel control while a program is running. The
Lockout
instrument will accept and execute bus commands while in local mode,
and the front panel will also be entirely active. If the HP 1650B/51B is in
remote mode, the instrument will go from remote to local with any front
panel activity. In remote with local lockout mode, all controls (except the
power switch) are entirely locked out. Local control can only be restored
by the controller.
,I:’
Note
3
Cycling the power will also restore local control, but this will also reset
certain HP-IB states.
Programming Over HP-IB
2-4
The instrument is placed in remote mode by setting the REN (Remote
Enable) bus control line true, and then addressing the instrument to
listen. The instrument can be placed in local lockout mode by sending the
local lockout (LLO) command (see SYSTem:LOCKout in chapter 6).
The instrument can be returned to local mode by either setting the REN
line false, or sending the instrument the go to local (GTL) command.
HP 1650B/HP 16518
Programming Reference
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