Measurement-computing Analyzer488 Manuale Utente Scaricare il pdf (Pagina 49)

Section 3 Front Panel Operation

3.3

3.5 Display Panel

The display panel of the Analyzer488 contains a 20 character

alphanumeric vacuum fluorescent display and LED indicators. The display

panel shows the state of the bus, the contents of record memory, and status,

help and other messages. LED indicators show the display mode and the state

of the handshaking lines.

IFC

REN

ATN

BUS

MEMORY

RECORD

NRFD

NDAC

DAV

EOI

LSB

LOCATION MESSAGE

Analyzer488

IEEE 488 Bus Analyzer

3.5.1 Alphanumeric Display

-LOCATION-

The

-LOCATION-

area shows either record memory

location addresses when in the memory view mode

(

MEMORY

LED on), or the message

BUS

when in the bus

display mode (

BUS

LED on). A

in the first column

means that the location is a trigger point. A

means

that relative addressing format is used. Note that when

recording (

RECORD

LED on), the

-LOCATION-

area

might change. See paragraph 3.7 for examples.

LOCATION

address in the record memory

00008

indicates a trigger point

T00055

indicates relative addressing

+00001

indicates relative addressing

-00002

bus

indicates bus display mode

BUS

-MESSAGE- The

-MESSAGE-

area displays bus data in bus message

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Measurement-computing Analyzer488 Manuale Utente Pagina 49

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