Types of flex i/o modules – Rockwell Automation 1794-XXXX FLEX I/O High-Density Analog Modules User Manual
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Publication 1794-UM062A-EN-P - September 2012
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Overview of FLEX I/O and Your Analog Module
Types of FLEX I/O Modules
The following FLEX I/O analog modules are described in this user manual:
FLEX I/O analog input, output and combination modules are block transfer
modules that interface analog signals with any Allen-Bradley programmable
controllers that have block transfer capability. Block transfer programming moves
input from the module’s memory to a designated area in the processor data table,
and output data words from a designated area in the processor data table to the
module’s memory. Block transfer programming also moves configuration words
from the processor data table to module memory.
The analog modules have selectable ranges as shown in the table below:
FLEX I/0 Analog Modules
Catalog Number
Voltage
Inputs
Outputs
Description
1794-IE8
24V DC
8
—
analog – 8 input, single-ended,
non-isolated
1794-IE8XT
(1)
(1)
Modules with "XT" indicated in the catalog number signify extended temperature modules.
1794-IE12
24V DC
12
—
analog – 12 input, single-ended,
non-isolated
1794-OE4
24V DC
—
4
analog – 4 output, single-ended,
non-isolated
1794-OE4XT
(1)
1794-OE12
24V DC
—
12
analog – 12 output, single-ended,
non-isolated
1794-IE4XOE2
24V DC
4
2
analog – 4 input, single-ended,
non-isolated and 2 output,
single-ended, non-isolated
1794-IE4XOE2XT
(1)
1794-IE8XOE4
24V DC
8
4
analog – 8 input, single-ended,
non-isolated and 4 output,
single-ended, non-isolated
Analog Module Selectable Ranges
Voltage
Current
0…10V DC
0…20 mA
+/- 10V DC
4…20 mA