4.12
TRIGger Susbsystem
4-34
4.12.
TRIGger Susbsystem
4.12.1. BisTrigSour
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Function name long BisTrigSour
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Usage
Selects a trigger source.
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Argument
[IN] long lngPID
// Packet ID (specifies the value acquired
// by BisOpenPacket)
long lngTrig
// Trigger source
// 0:INTERNAL
(A trigger wait status does not occur.)
// 1:EXTERNAL
(Trigger from the parallel input port)
long lngPattern // Parallel input pattern setting
// Sets a 4-bit pattern (0 through 15).
// A trigger occurs when a signal that matches
// the set pattern is input.
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Return value
Normal (0: BIS_TRUE) or error (1: BIS_FALSE)
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Description
If EXTERNAL is specified, it waits for an input from the parallel input.
A trigger occurs when the input signal from a parallel input matched the pattern
setting.
4.12.2. QryTrigSour
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Function name long QryTrigSour
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Usage
Reads the trigger source.
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Argument
[IN] long lngPID
// Packet ID (specifies the value acquired
// by BisOpenPacket)
[OUT] long *lngTrig // Trigger source
long *lngPattern // Parallel input (4 bits) pattern (0 to 15)
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Return value
Normal (0: BIS_TRUE) or error (1: BIS_FALSE)
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Description The trigger source and parallel input pattern set using BisTrigSour() are read. The
read trigger source is stored in the lngTrig variable. The read parallel input
pattern is stored in the lngPattern variable.
