Specifications

Publication 1794-SG002D-EN-P - May 2012
48 Select FLEX I/O Modules
1794-IE8XOE4 8 Input/4 Output Analog Combination Module
The 1794-IE8XOE4 is a combination module with 8 inputs and 4 outputs.
Inputs can be configured individually for different modes, as can outputs. Inputs
accept signals from 2, 3, and 4 wire input sensors in the ranges of ±10V or
0… 20 mA. Outputs produce signals in the range of ±10V or 0…20 mA.
8 Input / 4 Output Analog Combination Module
Specification 1794-IE8XOE4
Calibration None required
Input conversion type Successive approximation
Input conversion rate 8 ms all channels
Input resolution 16 bit, 2’s complement
320 μV/cnt
0.641 μA/cnt
Data format 16 bits, 2’s complement
Step response to 63% of FS, input Current or voltage input: 1.3 s (0.09 s with Quick Step)
Step response to 63% of FS, output -70% 1st convert
96% 2nd convert
100% 3rd convert
Normal mode rejection ratio Voltage/current terminal:
-3 dB @ 0.05 Hz; -20 dB/decade
-52 dB @ 50 Hz
-54 dB @ 60 Hz
Voltage/current terminal with Quick Step:
-3 dB @ 1.5 Hz; -20 dB/decade
-29 dB @ 50 Hz
-31 dB @ 60 Hz
Accuracy
(1)
(1) Includes offset, gain, non-linearity and repeatability error terms.
Current input or output: 0.1% Full Scale @ 25 °C
Voltage input or output: 0.1% Full Scale @ 25 °C
Accuracy drift with temperature Current input or output: 0.004% Full Scale @ 25 °C
Voltage input or output: 0.004% Full Scale @ 25 °C
Input impedance
(2)
(2) If 24V DC is removed from the module, input resistance = 10 KΩ.
Current input: <100 Ω
Voltage input: >1 MΩ
Voltage input, overload, max 30V, single channel, continuous
Output resolution 16 bit, 2’s complement
320 μV/cnt
0.641 μA/cnt
Output conversion type Digital-to-analog converter
Output conversion rate Outputs: DAC
Current load on voltage output, max 3 mA
Resistive load on current output 0…750 Ω over full power supply range
Dimensions (HxWxD), approx 46 x 94 x 53 mm (1.8 x 3.7 x 2.1 in.)
94 x 94 x 69 mm (3.7 x 3.7 x 2.7 in.) installed