SendLLO
Purpose
Send the Local Lockout (LLO) message to all devices.
Format
C
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void SendLLO (int boardID)
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Visual Basic
Input
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boardID
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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
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EBUS
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No devices are connected to the GPIB. |
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ECIC
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The interface is not the Controller-In-Charge; see SendIFC. |
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EDVR
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The NI-488.2 driver is either configured incorrectly or is not properly installed. |
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EHDL
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boardID is out of range. |
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ELCK
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The requested operation could not be performed because of an existing lock by another process. |
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ENEB
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The interface is not installed or is not properly configured. |
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EOIP
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Asynchronous I/O is in progress. |
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ESAC
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The interface is not configured as System Controller. |