Measurement Computing GPIB-488.2 - Manual (Page 63)

GPIB 488.2 Porting Guide 986992
IOtech to Associated MCC APIs 3-45
IOtech GPIB Command Associated MCC GPIB 488.2 Command(s)
UnListen
UnTalk
DevClear
Syntax
UnListen INT WINAPI UnListen (DevHandleT devHandle);
UnTalk INT WINAPI UnTalk (DevHandleT devHandle);
DevClear DevClear(int board, short address)
Usage Notes
UnListen, no longer to be used. This command was used to unaddress an external device that
was addressed to Listen.
UnTalk, no longer to be used. This command was used to unaddress an external device that
was addressed to Talk.
DevClear
is used to clear one device. This routine sends the GPIB Selected Device Clear
(SDC) message to the specified device. To clear multiple devices, use the DevClearList
routine. If address is set to NOADDR, then all connected devices on the GPIB, are cleared
through the Universal Device Clear (UDC) message.
To clear the device at GPIB primary address 4, secondary address 30, and connected to GPIB
board 0, we would follow the example.
Example:
DevClear(0, MakeAddr (4,30));
/* Use MakeAddr macro (in GPIB.H) to pack
primary and secondary address */