Rockwell-automation 1794-ID2 U.MNL INCREMENTAL ENCODER Instrukcja Użytkownika Pobierz pdf (Strona 61)

5–9How Communication Takes Place and I/O Image Table Mapping with the DeviceNet Adapter

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Each I/O module has default values associated with it. At default,

each module will generate inputs/status and expect

outputs/configuration.

Module Defaults for: Factory Defaults Real Time Size

Catalog

Number

Description

Input

Default

Output

Default

Input

Default

Output

Default

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Factory defaults are the values assigned by the adapter when you:

• first power up the system, and

• no previous stored settings have been applied.

For incremental encoder modules, the defaults reflect the actual

number of input words/output words. For example, for the

incremental encoder module, you have 9 input words, and 7 output

words.

You can change the I/O data size for a module by reducing the

number of words mapped into the adapter module, as shown in “real

time sizes.”

Real time sizes are the settings that provide optimal real time data to

the adapter module.

The incremental encoder modules have 15 words assigned to them.

This is divided into input words/output words. You can reduce the

I/O data size to fewer words to increase data transfer over the

backplane.

For information on using DeviceNetManager software to configure

your adapter, refer to the DeviceNetManager Software User Manual,

publication 1787-6.5.3.

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Defaults

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Rockwell-automation 1794-ID2 U.MNL INCREMENTAL ENCODER Instrukcja Użytkownika Strona 61