Hardware standard RS 232-C
Pro8000 system / page
20
Local lockout
Syntax:
"
&LLO
"
Description: Disables
the
button. Return to LOCAL mode (manual operation)
is only possible with the command
"
>L
".
Poll Status-byte
Syntax:
"
&POL
"
Description: Reads the status byte and clears bit 6 (MSS). This command is used
to emulate a service request.
3.1.3 Service request emulation
To get the instrument status byte asynchronously the service request sequence is
used:
•
In case the device needs a service request it sends
[
&SRQ
]
to the PC.
•
Now the PC should query the status byte with
"
&POL
"
.
•
The device will then answer with
[&nnn]
where
nnn
represents the status byte
in decimal notation.
%
(See chapter 3.5.4, Service request enable register (SRE) on page 42)
3.1.4 Operating
commands
All operating commands described in the following IEEE 488 section and in the
individual module-manuals are valid also for the RS-232C communication!
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