Measurement-computing Analyzer488 Uživatelský manuál stáhnout pdf (Strana 113)

Section 4 Serial Controller

4.19

ARM

The

ARM

command programs the Analyzer488 to send event messages to the

serial host when one or more specified events (

SRQ

TRIGGER

RECORD

, or

STEP

)

occur. The event messages returned are the same strings used to program the events.

Once a condition is

ARMed

it remains

ARMed

until the event specified has

occurred, it is

DISARMed

, or the Analyzer488 is reset. The

ARM

command must be

resent after an event message is reported to reactivate the

ARM

ed condition.

There are two types of events, level sensitive and edge sensitive. The level

sensitive event,

SRQ

, will be reported immediately if the SRQ line is asserted when

ARM

is issued. Usually, some action must be taken, such as issuing a

SPOLL

command to clear SRQ, prior to reissuing the

ARM

command. The edge sensitive

events,

TRIGGER, RECORD, and STEP

, are cleared when reported.

The query option,

ARM?

, returns the conditions that are presently

ARM

ed.

TYPE System Command

SYNTAX ARM

[[?]|[event[event…]]]

event

is one or more of

SRQ

TRIGGER,

RECORD,

STEP

If no event is specified,

ARM

SRQ

is assumed.

RESPONSE Event string sent when the event occurs

REMARKS The following conditions are available using the ARM command:

SRQ

The event message '

SRQ

' is returned to the serial host when the state

of the Service Request (SRQ) bus line is detected to be in the

asserted state. This event is level sensitive. If the condition exists at

the time the

ARM

SRQ

command is issued, the Analyzer488 will

return the event message immediately. If the

ARM

command is issued

without any specified events,

ARM

SRQ

is assumed.

1 2 ... 108 109 110 111 112 113 114 115 116 117 118 ... 280 281

Komentáře k této Příručce

Žádné komentáře

Measurement-computing Analyzer488 Uživatelský manuál Strana 113

Komentáře k této Příručce

Související produkty a manuály pro Hardware Measurement-computing Analyzer488