Measurement-computing GPIB-488.2 Instrukcja Użytkownika Pobierz pdf (Strona 35)

GPIB 488.2 Porting Guide 986992 IOtech to Associated MCC APIs 3-17

IOtech GPIB Command Associated MCC GPIB 488.2 Command(s)

Local EnableLocal

IOtech GPIB Command Associated MCC GPIB 488.2 Command(s)

LocalList EnableLocal

Syntax

Local INT WINAPI Local(DevHandleT devHandle);

LocalList INT WINAPI LocalList(DevHandlePT devHandleList);

EnableLocal EnableLocal(int board, short addresslist[])

Usage Notes

Local is no longer to be used. When in the System Controller mode, the Local command was

used to unassert the Remote Enable (REN) line. This caused devices to return to manual

operation.

LocalList is no longer to be used. Used like Local, but for a list of devices.

EnableLocal is used to place specified devices in local mode, meaning that they can be

programmed from their local, on-device, controls. When this routine is executed, the Controller

addresses the specified GPIB devices as listeners and then sends the GPIB Go To Local (GTL)

command. To put all devices in local mode, use an array containing only the NOADDR value.

This unasserts the GPIB Remote Enable (REN) line, thereby placing all GPIB devices in local

mode.

The following example shows instruction to put the GPIB devices, at addresses 6 and 7

(connected to board 0), in local mode.

Example:

short addresslist[3] = {6,7,NOADDR};

EnableLocal(0, addresslist);

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Measurement-computing GPIB-488.2 Instrukcja Użytkownika Strona 35