SendLLO

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Purpose

Send the Local Lockout (LLO) message to all devices.

Format

C

void SendLLO (int boardID)

Visual Basic

CALL SendLLO (boardID%)

Interactive Control (Usage Notes)

SendLLO

Input

boardID

The interface number

Description

SendLLO sends the GPIB Local Lockout (LLO) message to all devices. While Local Lockout is in effect, only the Controller-In-Charge can alter the state of the devices by sending appropriate GPIB messages. SendLLO is reserved for use in unusual local/remote situations. In the typical case of placing the devices in Remote With Local Lockout, use SetRWLS.

Possible Errors

EBUS	No devices are connected to the GPIB.
ECIC	The interface is not the Controller-In-Charge; see SendIFC.
EDVR	The NI-488.2 driver is either configured incorrectly or is not properly installed.
EHDL	boardID is out of range.
ELCK	The requested operation could not be performed because of an existing lock by another process.
ENEB	The interface is not installed or is not properly configured.
EOIP	Asynchronous I/O is in progress.
ESAC	The interface is not configured as System Controller.