Measurement-computing Analyzer488 Instrukcja Użytkownika Pobierz pdf (Strona 171)

Section 4 Serial Controller

4.77

Addressed state 9 1 T: Talker

L: Listener

I: Idle

Service Request 11 2 S0: SRQ is not asserted.

S1: SRQ is asserted.

Enn

Error code 14 3 Enn:

Letter 'E' followed by two-digit error code.

Refer to Appendix B for Error Codes.

Triggered 18 2 T0: No IEEE Trigger command received.

Cleared 21 2 C0: No IEEE Clear command received.

Msg

Error description 24 17 Text of error message

The Operating Mode (C) indicates that the Analyzer488 is the

Active Controller.

The Bus Address is the IEEE 488 bus device address assigned

to the Analyzer488 by the

ADDRESS

command or the front panel

configuration procedure.

The Address Change (G0, G1) indicator is set whenever the

Analyzer488 changes from the idle state to a Talker or Listener, or

from a Talker or Listener state to an idle state. It will not indicate

when a change is made from a listener to a talker or a talker to a

listener. The address change is reset when

STATUS

is read.

The Addressed State is the current talker/listener state of the

Analyzer488.

The Service Request indicator reflects the external SRQ status.

If the SRQ line is asserted, S1 will be reported. If it is unasserted, S0

will be reported.

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Measurement-computing Analyzer488 Instrukcja Użytkownika Strona 171