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16 ControlLogix Voltage/Current Input Module
Remove the Module
1. Push in top and bottom locking tabs.
1756-IF8 Specifications
Number of Inputs
Module Location
Backplane Current
Power Dissipation within Module
Thermal Dissipation
Input Range and Resolution
Data Format
Input Impedance
Voltage
Current
Open Circuit Detection Time
Overvoltage Protection
Normal Mode Noise Rejection
Common Mode Noise Rejection
Publication 1756-IN040C-EN-P - October 2000
20856–M
8 single ended, 4 differential or 2 differential (high speed)
1756 ControlLogix Chassis
150mA @ 5.1V dc & 40mA @ 24V dc
(Total backplane power 1.73W)
1.73W voltage
2.33W current
5.88 BTU/hr voltage
7.92 BTU/hr current
+/-10.25V - 320µV/cnt (15 bits plus sign bipolar)
0-10.25V - 160µV/cnt (16 bits)
0-5.125V - 80V/µcnt (16 bits)
0-20.5mA - 0.32µA/cnt (16 bits)
Integer mode (Left justified, 2s complement)
Floating point IEEE 32 bit
>1megΩ
249Ω
Differential voltage - Positive full scale reading
within 5s
Single Ended/Diff. current - Negative full scale
reading within 5s
Single Ended voltage -Even numbered channels go
to positive full scale reading within 5s, odd numbered
channels go to negative full scale reading within 5s
30V dc voltage
8V dc current
1
>80dB at 50/60Hz
>100dB at 50/60Hz
2. Pull module out of the chassis.
20857–M
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