Requested data
Command data
Description
Response data
0
System
21
status
"
STA
?"
Request system
21
STAtus.
Response:
"STA" +
<9
digits>
digits:
"1" Master detected a power-on reset.
"
2"
The addressed unit was not
present.
"3" A unit is busy.
"
4"
A unit is not ready with the
received data.
"5"
A unit has data available and
should be read.
"6" One
or
more units are busy with a
block or scan.
"7'' A unit has a warning.
"8"
The master detected the ready-
line high; ready is true (available
on PM
2101
master; not available
on all masters).
"9"
The master captured a trigger pulse
on the trigger-line (available on
PM2101
master; not available on all
masters).
Digits
"1
",
"2
",
"8" and "9" are
cleared when read .
A digit which is
"
0"
, indicates that
the
related message is not true.
Example:
"
STA
103056700"
23
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