Omron NT21 Series, Reference Manual

Page: 379 / 466

4-3 Section Commands/Responses
370
m Check sum present/absent (1 BCD digit)
0 : Absent
1 : Present
s
1
, s
2
: Check sum (2 hexadecimal digits)
Response
Format
1B 46
[ESC] F
52
R d1 d2
0D
d27 d28
s1
s2 [CR]
* * * *
* * * * * * * *
d
1
, d
2
, ..., d
27
, d
28
:
Comments of the read screen data file
(1 to 28 characters, space code (20H) is inserted in vacant
area)
s
1
, s
2
: Check sum (2 hexadecimal digits)
This is always added.
Reads the operation mode of PT.
4-3-6 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
•
Reads the operation mode of PT.
•
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 re-
sponses.
Function
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