Specifications

1-6
Remote Operation
Using GP-IB
Using Local and Remote Commands
At power on the instrument is in local mode and is sent into remote mode by one of two
methods.
The first method uses a dedicated command and with HP Basic this is the REMOTE
command followed by the instrument address, that is REMOTE 718.
The second method is by sending any command string to the instrument. The instrument
will recognize the command string, set itself to the remote mode and then act on that
command.
There are three ways to return the instrument back to local mode. The first method is to
use the HP Basic command LOCAL plus the instrument address, that is LOCAL 718. The
second method is to press the front panel LCL key. The third method is to cycle power to
the instrument.
NOTE The instrument behaves differently in LOCAL mode if a LOCAL
command is asserted on the interface bus by the controller. For
example, to assert a local condition at interface 7, the command is
simply LOCAL 7. When this condition is present sending a command
string to the instrument will not cause it to enter the remote state. It will
however act on the command string but remain in the local state.
To cancel the LOCAL 7 state you must use the REMOTE 7 command.
GP-IB Required Commands
The Required Commands perform the most basic remote functions over GP-IB and are
common to all GP-IB controllable instruments. The commands are as follows:
• DEVICE CLEAR
•SERIALPOLL
• REMOTE ENABLE
• LOCAL LOCKOUT
• GO TO LOCAL
Device Clear (CLEAR)
This command initializes the instrument GP-IB hardware.
The command format using HP 200/300 Series Basic is, for example:
CLEAR 718