Prosoft-technology MVI56E-SIE Bedienungsanleitung PDF herunterladen (Seite 137)

MVI56E-SIE ♦ ControlLogix Platform Reference

Client Communication Module User Manual

ProSoft Technology, Inc. Page 137 of 168

September 6, 2012

All data transferred between the module and the processor over the backplane is

through the input and output images. Ladder logic must be written in the

ControlLogix processor to interface the input and output image data with data

defined in the controller tags. All data used by the module is stored in its internal

database. This database is defined as a data table with addresses from 0 to

4999

Module’s Internal Database Structure

5000 registers for user data

4999

Data contained in this database is transferred in blocks, or pages, using the input

and output images. ControlLogix ladder logic and the MVI56E-SIE module's

program work together to coordinate these block transfers. Up to 200 words of

data can be transferred from the module to the processor (read block - input

image) or from the processor to the module (write block - output image) in each

block transfer. The block structure of each block type depends on the data

content and function of the block. The module uses the following block

identification numbers:

Block ID Range

Descriptions

-1

Null block

This feature enhances performance, especially when using less than

200 words of read/write data:

 If Read Register Count in the module configuration file is set >

200 words, Block ID 0 is not used.

 If Read Register Count in the module configuration file is set >0

and <= 200 words, Block ID contains the same data as block 1

(both read data and status data).

1 to 25

Read or Write blocks

1000 to 1024

Initialize Output Data blocks

3000 to 3029

Client Status blocks

5001 to 5016

Command Control blocks

9990

Set Module IP Address block

9991

Get Module IP Address block

9998

Warm-boot block

9999

Cold-boot block

1 2 ... 132 133 134 135 136 137 138 139 140 141 142 ... 167 168

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