Specifications

Publication 1794-SG002D-EN-P - May 2012
Select FLEX I/O Modules 41
Input resolution 16 bits – unipolar
15 bits + sign – bipolar
0.320 μA/cnt – unipolar
0.640 μA/cnt – bipolar
0.156 mV/cnt – unipolar
0.313 mV/cnt – bipolar
Input resistance Current input: <100 Ω
(1)
Voltage input: >10 MΩ
Data format 2’s complement
2’s complement percent
binary
offset binary
Input conversion type Sigma Delta
Input conversion rate 2.5/5.0/7.5 ms all channels
Normal mode rejection ratio -3 dB @ 12 Hz (300 Hz conversion rate)
-80.0 db @ 50 Hz (300 Hz conversion rate)
Calibration Factory calibrated
(2)
Step response to 63% of FS,
input
Current or voltage input:
1200 Hz conversion rate = 0.6 ms
600 Hz conversion rate = 6.7 ms
300 Hz conversion rate = 13.4 ms
150 Hz conversion rate = 26.7 ms
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
Resolution 16 bit unipolar
15 bit + bipolar
Accuracy Current input: 0.1% Full Scale @ 25 °C (77 °F)
Voltage input: 0.1% Full Scale @ 25 °C (77 °F)
(3)
Temperature, operating 1794-IF4I: 0…55 °C (32…131 °F)
1794-IF4IXT: -20…70 °C (-4…185 °F)
(1) If 24V DC is removed from the module, input resistance = 10 kΩ.
(2) Can be calibrated in field when necessary.
(3) Includes offset, gain, non-linearity, and repeatability error terms
Isolated Analog Input Modules
Specification 1794-IF4I, 1794-IF4IXT