Measurement Computing Personal488 rev.3.0 For DOS & Windows 3.Xi - Manual (Page 367)

15B. Driver488/SUB, W31, W95, & WNT III. COMMAND REFERENCES - 15. Command References
III-352 Personal488 User’s Manual, Rev. 3.0
BUS STATES ATN
•GET (interface handle)
ATN
•UNL, MTA, LAG, GET (external device handle)
SEE ALSO TriggerList, Status, SendCmd
EXAMPLES errorcode =
Trigger(ieee);
Issue a Group Execute Trigger (GET) bus command to those
devices that are already in the Listen state as the result of
a previous Output or Send command:
errorcode =
Trigger(dmm);
Issue a Group Execute Trigger (GET) bus command to the
device specified:
The Trigger command issues a Group Execute Trigger ( GET ) bus command to the specified device.
If no interface devices are specified, then the GET only affects those devices that are already in the
Listen state as a result of a previous Output or Send command.
TriggerList
SYNTAX int pascal TriggerList(DevHandlePT devHandles);
devHandles is a pointer to a list of external devices.
RETURNS -1 if error
MODE CA
BUS STATES ATN
•UNL, MTA, LAG, GET
SEE ALSO Trigger, SendCmd, Status
EXAMPLE deviceList[0] = wave;
deviceList[1] = timer;
deviceList[2] = dmm;
deviceList[3] = NODEVICE;
errorcode = TriggerList(deviceList); Issue a Group Execute
Trigger (GET) bus
command to a list of
specified devices.
The TriggerList command issues a Group Execute Trigger ( GET ) bus command to the specified
devices. If no interface devices are specified, then the GET affects those devices that are already in the
Listen state as a result of a previous Output or Send command.
UnListen
SYNTAX int pascal UnListen (DevHandleT devHandle);
devHandle refers to either an interface or an external device. If devHandle
refers to an external device, the UnListen command acts on the associated
interface.
RETURNS -1 if error
MODE CA
BUS STATES ATN, UNL
SEE ALSO Listen, UnTalk, SendCmd, Status
EXAMPLE errorcode = UnListen (ieee);
The UnListen command unaddresses an external device that was addressed to Listen.
UnTalk
SYNTAX int pascal UnTalk (DevHandleT devHandle);
devHandle refers to either an interface or an external device. If devHandle
refers to an external device, the UnTalk command acts on the associated
interface.
RETURNS -1 if error
MODE CA
BUS STATES ATN, UNT
SEE ALSO Talk, UnListen, SendCmd, Status
EXAMPLE errorcode = UnTalk (ieee);