Omron NT620C, Руководство по эксплуатации

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6-3 Section Commands/Responses
249
Order of priority of input communication commands
S
When a reason for input notification arises during processing of a command
from the host, the input command is issued only after the ongoing command
processing has been completed.
Check sum
S
The checksum of the command response is the lower one-byte of the total sum
(in units of bytes) of the following, from the [ESC] code at the beginning to the
character immediately before the checksum value.
Reference If “ON” is set for the “Automatic Reset” memory switch, communication errors
are not displayed on the screen even if they occur, with the exception of overflow
errors. If an overflow error occurs, an error message is displayed on the screen
and operation is stopped.
6-3 Commands/Responses
This section describes the commands used with the memory link and their re-
sponses.
PT memory read command (Sent from host to PT)
Command
Format
4D * * * * * * * * 1B 52 * *
M m c
1
c
2
c
3
[ESC] R c
4
(l
2
) (s
1
) (s
2
) [CR] (l
1
)
* * * * * * 0D * *
m : Check sum present/absent (1 BCD digit)
0 : Absent
1 : Present
8 : Absent (1 word read)
9 : Present (1 word read)
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)
00 :100 words
01 to 99 :1 to 99 words
When m is 8 or 9, omit this setting.
s
1
, s
2
: Check sum (2 hexadecimal digits)
When m is 0 or 8, omit this setting.