Measurement-computing Analyzer488 Uživatelský manuál stáhnout pdf (Strana 57)

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101

Section 3 Front Panel Operation

3.11

3.7.2 Viewing Bus Events

Press

[LISTEN]

The

LISTEN

LED will light

to set Listen state

Press

[SLOW]

The

SLOW

LED will light.

to set slow handshaking

(Note that slow handshaking speed is set to 3

bytes/sec at the factory. It can be changed using

[RATE]

Enter the following commands to the keyboard controller:

CMD> timeout 0

CMD> term out cr

CMD> output 00;test

SRQ IFC

RENATN

EOI

LOCATION MESSAGE

The display will show:

BUS TAG21 55

BUS UNL 3F

BUS LAG00 20

BUS 't' 74

BUS 'e' 65

BUS 's' 73

BUS 't' 74

BUS CR 0D

BUS ACG13 0D

Bus events are displayed as they happen; Eight events occurred

on the bus. The ninth display shows that the controller asserted

Attention after the "test" message.

ACG13

is the bus message for the

multiline command:

&h0D

(ASCII CR).

1 2 ... 52 53 54 55 56 57 58 59 60 61 62 ... 280 281

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