Rockwell-automation 56AMXN/B ControlLogix AutoMax Comm Module Manual do Utilizador descarregar pdf (Página 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

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].

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Rockwell-automation 56AMXN/B ControlLogix AutoMax Comm Module Manual do Utilizador Página 51