Omron NT620C, Operation Manual

Page: 261 / 337

6-3 Section Commands/Responses
250
Response
Format
Data of 1 word
4D * * * * * * * * 1B 52 * *
M c
1
c
2
c
3
c
4
[ESC] R l
1
d1
m
, dn
1
dn
m
d1
1
* * 2C * * * * * *
* *
l
2
s
1
* *
s
2
* *
[CR]
0D
Data of 1 word
c
1
to c
4
: First word number read (4 BCD digits)
0000 to 9999
I
1
, I
2
: Number of read words (2 BCD digits)
01 to 50: 1 to 50 words
d1
1
to d1
m
, ..., dn
1
to dn
m
:
Contents of the read words (1 to 4 hexadecimal digits)
0 to FFFF
Since initial zeroes are omitted, there may be less
than 4 digits. Individual words of data are delimited by
commas.
s
1
, s
2
: Check sum (2 hexadecimal digits)
This is always added.
Function
S
Reads the contents of the specified number of words from the specified word of
the PT memory.
S
Used to read the statuses of the PT status notify area, lamps, touch switches
and bit memory tables allocated to the PT memory, and the contents of numer-
al and character string memory tables.
S
A maximum of 100 words can be read at one time.
S
In the response, a maximum of 50 words can be returned at one time. If read-
ing of more than 50 words is specified, the response is split into two parts. In
this case the first part always contains 50 words of data. Note also that the “first
word number read” in the second part of the response will be the word number
of the first word in the response data.
Example
Reading the PT status in the PT status notify area (allocated words: 0010 to
0012)
S
Command
4D 38 30 30 31 1B 52 32
M 8 0 0 1 [ESC] R 2
0D
[CR]
No check sum (1 word read), first word read = 0012