viGpibPassControl

NI-VISA 15.0 Help

Edition Date: June 2015

Part Number: 370131S-01

»View Product Info

Purpose

Tell the GPIB device at the specified address to become controller in charge (CIC).

C Syntax

ViStatus viGpibPassControl(ViSession vi, ViUInt16 primAddr, ViUInt16 secAddr)

Visual Basic Syntax

viGPIBPassControl& (ByVal vi&, ByVal primAddr%, ByValsec Addr%)

Resource Classes

GPIB INTFC

Parameters

Name Direction Description

vi

IN

Unique logical identifier to a session.

primAddr

IN

Primary address of the GPIB device to which you want to pass control.

secAddr

IN

Secondary address of the targeted GPIB device. If the targeted device does not have a secondary address, this parameter should contain the value VI_NO_SEC_ADDR.

Return Values

Completion Codes Description

VI_SUCCESS

Operation completed successfully.

Error Codes Description

VI_ERROR_INV_OBJECT

The given session reference is invalid.

VI_ERROR_NSUP_OPER

The given vi does not support this operation.

VI_ERROR_RSRC_LOCKED

Specified operation could not be performed because the resource identified by vi has been locked for this kind of access.

VI_ERROR_TMO

Timeout expired before operation completed.

VI_ERROR_NCIC

The interface associated with the given vi is not currently the controller in charge.

VI_ERROR_NLISTENERS

No Listeners condition is detected (both NRFD and NDAC are deasserted).

VI_ERROR_IO

An unknown I/O error occurred during transfer.

VI_ERROR_INV_PARAMETER

The primary or secondary address is invalid.

Description

This operation passes controller in charge status to the device indicated by primAddr and secAddr, and then deasserts the ATN line. This operation assumes that the targeted device has controller capability. This operation is valid only on GPIB INTFC (interface) sessions.


Related Topics

INTFC Resource

WAS THIS ARTICLE HELPFUL?

Not Helpful