BIRD THRULINE 4020 series, Instruction Book

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IEEE-488 GPIB Interface
17
Remote ENable (REN)
Function
Enables remote operation.
Remarks
The unit must be addressed to listen after setting REN true.
The REMOTE indicator turns on when this command is received.
Go To Local (GTL)
Function
Returns device to local operation.
Remarks
Issuing a GTL command while the device is in Local Lockout mode does not
clear the lockout condition.
The REMOTE indicator turns off.
The LISTEN indicator remains on.
Local LOckout (LLO)
Function
Disables local operation of all devices on the bus.
Remarks
REN must be true to use LLO.
LLO is cleared by setting REN false.
InterFace Clear (IFC)
Function
Terminates all bus activity and passes control to the system controller.
Remarks
All devices are set to talker and listener idle states.
LISTEN mode is cancelled, and its indicator is turned off.