Sending variables – Rockwell Automation 2706-LV2P_LV2R_LV4P_LV4R DL40 PLUS USER MANUAL User Manual
Page 107

Remote I/O Communications
8–15
Publication 2706-6.1
When variables are sent, all
[CTRL][V]
(formatted) variables must be
sent first followed by
[CTRL][W]
(unformatted) variables.
Note:
^
W
means the same as
[CTRL][W]
.
Example:
If a message has variables positioned as follows:
[CTRL][V]
[CTRL][W]
[CTRL][V]
[CTRL][W]
[CTRL][V]
First
Position
Second
Position
Third
Position
Fourth
Position
Fifth
Position
and
[CTRL][W]
variables are ASCII, they would be sent in the
following order:
^V
1st position
^V
3rd position
^V
5th position
^W 2nd position
^W
4th position
MSB
LSB
WORD n
WORD n +1
WORD n +2
WORD n +3
If
[CTRL][W]
variables are BCD variables, word n+3 would look
like:
UNUSED
MSB
LSB
WORD n +3
^W
4th position
^W
2nd position
Sending Variables
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