Allen-Bradley 1794-IE4XOE2 Series B User Manual

Table of Contentsii
Module Programming 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter Objectives 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Block Transfer Programming 3-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sample programs for Flex I/O Analog Modules 3-2
. . . . . . . . . . . . . . .
PLC3 Programming 3-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3.1
PLC3 Family Sample Program Structure for a 1794IE8 Module 3-2
Figure 3.2
PLC3 Family Sample Program Structure for a
1794OE4 Module 3-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3.3
PLC3 Family Sample Program Structure for a
1794IE4XOE2 Module 3-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PLC5 Programming 3-4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3.4
PLC5 Family Sample Program Structure for the 1794IE8 3-4. . . .
Figure 3.5
PLC5 Family Sample Program Structure for the 1794OE4 3-4. . .
Figure 3.6
PLC5 Family Sample Program Structure for the 1794IE4XOE2 3-5
PLC2 Programming 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Analog Data Format 3-6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter Summary 3-6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Writing Configuration to and Reading Status from
Your Module with a Remote I/O Adapter 4-1. . . . . . . . . . .
Chapter Objectives 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring Your Analog Module 4-1
. . . . . . . . . . . . . . . . . . . . . . . . .
Range
Selection 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safe
State V alue Selection 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Format 4-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reading Data From Your Module 4-2
. . . . . . . . . . . . . . . . . . . . . . . . .
Mapping Data for the Analog Modules 4-3
. . . . . . . . . . . . . . . . . . . . .
8 Input Analog Module (Cat. No. 1794IE8 Series B) 4-3
. . . . . . . . .
Analog Input Module (1794IE8) Read 4-3
. . . . . . . . . . . . . . . . .
Word/Bit Descriptions for the 1794IE8 Analog
Input Module Read 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Analog Input Module (1794IE8/B) Write Configuration Block 4-4
.
Range Selection Bits for the 1794IE8/B Analog Input Module 4-5
Word/Bit Descriptions for the 1794IE8/B Analog Input
Module Write 4-5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Output Analog Module (Cat. No. 1794OE4 Series B) 4-6
. . . . . . .
Analog Output Module (1794OE4/B) Read 4-6
. . . . . . . . . . . . .
Bit/Word Descriptions for the 1794OE4/B Analog Output
Module Read 4-6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Analog Output Module (1794OE4/B) Write Configuration Block 4-7

Allen-Bradley 1794-IE4XOE2 Series B Specifications

General

Manufacturer	Allen-Bradley
Series	B
Model	1794-IE4XOE2
Input Channels	4
Output Channels	2
Current Input Range	0-20mA, 4-20mA
Current Output Range	0-20mA, 4-20mA
Resolution	16-bit
Input Type	Analog
Output Type	Analog
Voltage Input Range	0-10 V
Voltage Output Range	0-10 V
Current Range	20mA
Isolation Voltage	50V
Operating Temperature	-20 to 60 °C

Summary

How to Install Your Analog Module

Power, Wiring, and Mounting

Details power needs, wiring, and mounting procedures for the modules.

Module Programming

Block Transfer Programming

Explains the fundamental principles of block transfer programming for modules.

PLC Programming Examples

Presents sample programming routines for PLC-3, PLC-5, and PLC-2 processors.

Analog Data Format

Writing Configuration and Reading Status

Module Configuration and Data Selection

Guides users on configuring module features, range, and safe state values.

Analog Module Data Mapping and Descriptions

DeviceNet Adapter Communication and Mapping

DeviceNet Manager and I/O Structure

Image Table Mapping and Defaults

Specifications

1794-IE8/B Analog Input Module Specifications

Provides detailed technical specifications for the 1794-IE8/B analog input module.

1794-OE4/B Analog Output Module Specifications

Provides detailed technical specifications for the 1794-OE4/B analog output module.

1794-IE4XOE2/B Combo Module Specifications

Provides detailed technical specifications for the 1794-IE4XOE2/B analog combo module.

Data Table Formats

Binary and Analog Data Formats

Scaling Example