Chapter Nine: RS-232 Communications
Command Messages
281
How To Check the Channel Status
The channel status message reports the channel’s pressure if the channel is currently on or
currently performing a low power degas. Otherwise, the response will indicate the condition of
the channel
initializing, zeroing, underranged, overranged, off (either manual or auto), high
power degas, disconnected, sensor problem, or not installed. Since the channel status message
reports complete information on the channel’s condition, it is the best command to use when you
query the pressure reading.
To check the channel pressure, enter:
@608C?<CR>
where C
= is the channel number 1, 2, 3, 4, 5 (dual 1), or 6 (dual 2)
The 146 instrument responds with:
@608C:<status><reading>
<
CR
>
where <
status
> is: = A for On
B for low power degas
C for underranged
D for overranged
E for manually off
F for auto off
G for high power degas
H for initializing
I for zeroing
J for bad sensor
K for disconnected
L for channel not installed
<
reading
> is: = an empty field unless <status> is A (on) or B (low power degas),
then this field contains an ASCII string representing the channel’s
reading
For example, the following response indicates a disconnected sensor on channel 2:
@6082:K
<
CR
>
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
