Measurement Computing Analyzer488 User Manual

Page 260

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Appendix C

Instrument Simulator Command Ssummary

C.2

Command

Code

Description

End of Reading

J0

Assert EOI on end of reading.

EOI

J1

Do not assert EOI on end of reading.

J?

Output current End of Reading EOI selection.

End of Waveform

K0

Assert EOI on end of waveform.

EOI

K1

Do not assert EOI on end of waveform.

K?

Output current End of Waveform EOI
selection.

Parallel Poll

P0

Clear Parallel Poll register.

Response

Pn

Set Parallel Poll register to n. n = 0 to 255.

P?

Output present Parallel Poll register contents.

Serial Poll

S0

Clear Serial Poll register.

Response

Sn

Set Serial Poll register to n. n = 0 to 255.

S?

Output present Serial Poll register contents.

Timed SRQ

T0

Disable SRQ on timeout.

Tn

Generate an SRQ after n milliseconds.
n

= 0 to 65535.

T?

Output number of milliseconds remaining
before a timed SRQ.

Status

U0

Send the Analyzer488 status string.

U1

Test for a key press.

U2

Wait for a key press.

U?

Always outputs U0.

Version

V?

Output Analyzer488 firmware revision level.

Query

Waveform

Wn

Select waveform n. n = 0 to 20 (factory
waveforms) n = 21 (User waveform).

W?

Output current waveform selection.

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