Rockwell Automation 1757-ABRIO Process Remote I/O (RIO) Communication Interface Module User Manual

Page 48

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Publication 1757-UM007D-EN-P - December 2008

Chapter 3 Creating Generic Modules in AbRioCfg Software

Numeric Data

The numeric section of the data block transfer write defines the I/O
data - its location, format, and scaling.

The beginning of the numeric section is marked by the keyword
“numeric”, the number of values to be defined, and the data format.

AbRioCfg software checks the number of values to be defined against
the actual number of definitions and indicates an error if they do not
match.

The format can be one of the following.

All items must have the same format.

This line is followed by definitions for the I/O data values, each on a
row of the spreadsheet (or line of a text file). Each definition consists
of the following fields:

The BTW offset is the offset into the BTW data for the I/O data value.

Some modules have a separate polarity bit to indicate the sign of an
input. If the data being written is negative, the 1757-ABRIO module
sets the polarity bit.

Format

Range of values

BCD

0 to 9999

Unsigned

0 to 65535

Integer

-32768 to 32767

EXAMPLE

numeric, 4, BCD
numeric, 8, integer

Quantity

Description

BTW offset

Offset into BTW data

Polarity offset

Word offset of polarity bit

Polarity bit

Bit number, 0-15

Minimum raw value

Minimum raw output

Maximum raw value

Maximum raw output

Minimum scale value

Minimum floating point scaled value that corresponds
to minimum raw value

Maximum scale value

Maximum floating point scaled value that corresponds
to maximum raw value

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