Measurement-computing Analyzer488 Bedienungsanleitung PDF herunterladen (Seite 114)

Section 4 Serial Controller

4.20

TRIGGER

The event message '

TRIGGER

' is returned to the serial host when the

Analyzer488 trigger circuitry has found the trigger point. This event

is edge sensitive.

RECORD

The event message '

RECORD

' is returned to the serial host when the

Analyzer488 recording sequence is finished. This event is edge

sensitive.

STEP

The event message '

STEP

' is returned to the serial host when the bus

is ready for a source (talker) or acceptor (listener) handshake. This

event is edge sensitive.

MODE

any

BUS STATES None

QUERY String of events in the following format:

RESPONSE ARM SRQ TRIGGER STEP RECORD

EXAMPLES

100 PRINT#1,"ARM SRQ"

Enable SRQ Condition

110 T = TIMER

110 IF LOC(1) THEN PRINT INPUT$(LOC(1),1);

120 IF TIMER - T < 5 GOTO 110

SRQ message will be received and printed if an SRQ occurs within

5 seconds after receipt of the

ARM

command.

PRINT #1,"ARM SRQ STEP"

Arm SRQ and STEP.

PRINT #1,"ARM?"

Query armed status.

INPUT #1, A$

Get response.

PRINT A$

Display results

The returned string would be:

'ARM SRQ STEP'

Refer to the demonstration program listed in appendix F for further examples of

the ARM command.

1 2 ... 109 110 111 112 113 114 115 116 117 118 119 ... 280 281

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