Measurement-computing Analyzer488 Manuel d'utilisateur télécharger pdf (Page 87)

Section 3 Front Panel Operation

3.41

Handshake

The Handshake keys are used to control the speed of IEEE 488 bus data

transfers.

RATE NONE

HANDSHAKE

FAST SLOW STEP

[FAST]

The Fast key,

[FAST]

, is used to set the IEEE 488 bus handshake

control to fast operation. It enables participation in high speed bus

source or acceptor handshaking at speeds up to 1 Mbyte/sec. Source

(Talk state) or acceptor (Listen state) handshaking, is dependent on

the

-SOURCE-

keys.

FAST LED

The

FAST

LED indicates that the IEEE 488 bus handshake control is

currently set to fast operation. Changing the handshake control may

be accomplished by pressing

[SLOW]

[STEP]

, or

[NONE]

[SLOW]

The Slow key,

[SLOW]

, is used to set the IEEE 488 bus handshake

control to slow. It enables participation in low speed source or

acceptor bus handshaking at speeds from 1 to 10 bytes/sec. The

handshake speed is set using the

[RATE]

command. Source (Talk

state) or acceptor (Listen state) handshaking, is dependent on the

SOURCE-

keys.

SLOW LED

The

SLOW

LED indicates that the IEEE 488 bus handshake control is

currently set to slow operation, recording and/or viewing bus events

at a rate between 1 to 10 events per second while participating in the

bus three wire handshake. Changing the handshake speed may be

accomplished using the

[FAST]

[STEP]

, or

[NONE]

keys.

[RATE]

The Rate command,

[SHIFT][SLOW]

, is used to adjust the slow

handshake rate. A menu requests the speed of the slow handshake:

1 2 ... 82 83 84 85 86 87 88 89 90 91 92 ... 280 281

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Measurement-computing Analyzer488 Manuel d'utilisateur Page 87

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