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ProSoft Technology MVI56E-MNETC User Manual

Page 32

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Guide to the MVI56E-MNETC User Manual

MVI56E-MNETC ♦ ControlLogix Platform

User Manual

Modbus TCP/IP Client Enhanced Communication Module

Page 32 of 183

ProSoft Technology, Inc.

February 3, 2013

Adjusting the Input and Output Array Sizes

Tip: If you have not installed ProSoft Configuration Builder, see page 38 for the
steps to install the software.

The module internal database is divided into two user-configurable areas:

Read Data

Write Data

The Read Data area is moved from the module to the processor, while the Write
Data area is moved from the processor to the module.

The MVI56E-MNETC Add-On Instruction rung is configured for 600 registers of
Read Data and 600 registers of Write Data,

which is sufficient for most

applications. However, you can configure the sizes of these data areas to meet
the needs of your application.

1 In ProSoft Configuration Builder, expand the Module icon in the tree view and

double-click M

ODULE

to open an Edit window. Change the R

EAD

R

EGISTER

C

OUNT

to contain the number of words for your Read Data area.

Important: Because the module pages data in blocks of 200 registers at a time,
you should configure your user data areas in multiples of 200 registers.

2 To modify the WriteData

array, follow the above steps, substituting WriteData

for ReadData.