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20 Communication with a PC
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© 2012 Thorlabs
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.
4.1.3 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 4.5.4, Service request enable register (SRE) on page 44)
4.1.4 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!