Rockwell Automation 56AMXN/B ControlLogix AutoMax Comm Module - Manual (Page 51)

AutoMax DCSNet/RE RIO Module Page 51
Publication number 56AMXN-UM002A-EN-P November 2002
…
Data for the first drop in the list, 32 words
# of drops
First Drop #
Second drop #
…
Last drop #
with up to 7 attributes and data arrays
Note that Write Multiple Drops does not support drop 0
Drops Source Length
(bytes)
1 68
2 134
3 200
4 266
5 332
6 398
7 464
Nothing is written to the destination tag.
If you create a source tag as an array of dimensions Data[number of
drops + 1][32], it makes it very easy to locate the data for each drop and
register.
Remember that if you change the number of drops you are writing, you
must change the Source Length (bytes) in the MSG instruction and also
the location in the array where you write the number of drops and the
drop numbers.
Example
An application writes data for drops 1, 4, and 7.
Create a source array of name and size Data[4][32]. In Data [4][0] to
Data[4][3] write the values 3, 1, 4, 7 (number of drops, and the drop
numbers). Put the data for drop 1 in Data[0][0] to Data[0][31], the data
for drop 4 in Data[1][0] to Data[1][31], and the data for drop 7 in
Data[2][0] to Data[2][31].