Omron NT31 Series, Operation Manuals

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576
Commands/Responses Section 9-3
9-3-6 System status read command (Sent from host to PT)
Command
[Format]
1B
50
[ESC]
[CR]
P
0D
54
T m (s1) (s2)
* * * * * *
m Check sum present/absent (1 BCD digit)
0 : Absent
1 : Present
s
1
, s
2
: Check sum (2 hexadecimal digits)
Response
[Format]
1B 50
[ESC] [CR] P
46 30 31 0D 54
T
30
0 0 s1 s2
s
1
, s
2
: Check sum (2 hexadecimal digits)
This is always added (fixed as “1FH”).
[Function]
S Reads the operation mode of PT.
S The responses above will be returned when PT is in RUN mode. With the modes
other than RUN mode (when RUN LED is not lit in green), no responses will be
returned even if this command is sent. Sending this command enables to know
whether or not PT is running by checking the presence/absence of responses.