Measurement Computing Personal488 rev.3.0 For DOS & Windows 3.Xi - Manual (Page 296)

III. COMMAND REFERENCES - 14. Command Summaries 14E. Driver488/W31, Visual Basic
Personal488 User’s Manual, Rev. 3.0 III-281
SPoll (IntfHandle) Get SRQ state
SPollList (ListFirstElement(0),
ResultFirstElement(0),UntilFlag
)
Serial Poll devices until parameters are met
Status (IntfHandle,StatusVal) Return details of state of the driver
Stop (IntfHandle) See ioStop
SysController (IntfHandle,SysCont) Specify if interface is to be System Controller
Talk (IntfHandle,Prim,Sec) Send specified Talk Address
Term (Handle,TermVal,TermType) Set terminators for interface or device
TimeOut (Handle, Timeout) Set time that must elapse before time out error
declared
Trigger (Handle) Issue Group Execute Trigger
TriggerList (ListFirstElement (0)) Issue GET to devices in list
UnListen (IntfHandle) Send the Unlisten (UNL) command
UnTalk (IntfHandle) Send the Untalk (UNT) command
Wait (IntfHandle) See ioWait
The Commands
To obtain a more detailed description of the command references for Driver488/W31, turn to Chapter
15 “Command References” in this Section. The commands are presented in alphabetical order for ease
of use.
Syntax Parameters
Name Type Description
Async integer Flag to indicate async transfer
Bytes string String containing characters to transfer
ByVal ErrText string Buffer containing error text
ByVal Message string Buffer used to receive Hello message
ByVal Name string Name of external device or DOS device
CompStat integer Completion status from Driver
Count long Long count specifier
Data string Buffer used to send or receive data
DevHandle integer External device handle
Display integer Error message display is TURN ON or TURN
OFF
DmaChan integer Hardware DMA channel
ErrHandle integer Handle that caused error
Flag integer ON or OFF specifier
ForceAddr integer Force address flag
Freq integer Clock frequency
Handle integer Either a DevHandle or an IntfHandle
IntLev integer Hardware Interrupt level
IntfHandle integer Interface handle
IOAddr integer I/O base address
Last integer Terminator on last byte indicator
Length integer Number of Bytes
Limit integer Max number of listeners
ListFirstElement(0) integer array First element of the array of handles
Monitor integer Data monitor ON or OFF
PPresponse integer Configuration byte
Prim integer IEEE 488 primary address
ResultFirstElement(0) integer First element of the array of results
Sec integer IEEE 488 secondary address