Rockwell-automation 1769-OF4VI Compact I/O Isolated Analog Modules User Manual download pdf (Page 10)

Publication 1769-UM014B-EN-P - May 2010

1-2 Overview

General Description

The 1769-IF4I isolated analog input module converts and digitally stores

analog data for retrieval by controllers, such as the CompactLogix controller or

the MicroLogix 1500 controller. The module supports connections from any

combination of as many as four voltage or current analog sensors. The

1769-IF4I input module provides four, isolated-differential analog input

channels.

The 1769-OF4CI and -OF4VI isolated output modules each provide four,

isolated differential analog output channels.

The modules provide the following input/output types/ranges:

The data can be configured on board each module as:

 engineering Units.

 scaled-for-PID.

 percent.

 raw/proportional data.

Hardware Features

The modules contain removable terminal blocks. The modules’ channels are

isolated from each other and are normally wired as differential inputs or

outputs. Single-ended applications can be supported by wiring the negative

terminal of each channel to the other channel’s negative terminals; however,

this eliminates the channel-to-channel isolation provided by the modules.

Module configuration is normally done via the controller’s programming

software. In addition, some controllers support configuration via the user

program. In either case, the module configuration is stored in the memory of

the controller. Refer to your controller’s user manual for more information.

Table 1.1 Normal and Full Ranges

Normal Operating Input Range Full Module Range

±10V dc ± 10.5V dc

1…5V dc 0.5…5.25V dc

0…5V dc -0.5…+5.25V dc

0…10V dc -0.5…+10.5V dc

0…20 mA 0…21 mA

4…20 mA 3.2…21 mA

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 127 128

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Rockwell-automation 1769-OF4VI Compact I/O Isolated Analog Modules User Manual Page 10