20 MicroLogix 1762-IF4 Analog Input Module
Publication 1762-IN012C-EN-P - June 2013
Specifications
Input
Attribute Value
Number of inputs 4 differential (bipolar)
A/D converter type Sigma-Delta
Common mode voltage range
(1)
(1)
For proper operation, both the plus and minus input terminals must be within ±27V of analog common.
±27V
Common mode rejection
(2)
(2)
V
cm
= 1 V
pk-pk
AC
> 55 dB @ 50 and 60 Hz
Non-linearity (in percent full scale) ±0.12%
Typical overall accuracy
(3)
(3)
V
cm
= 0 (includes offset, gain, non-linearity and repeatability error terms)
±0.32% full scale @ -20…65 °C (-4 °F…149 °F)
±0.24% full scale @ 25 °C (77 °F)
Input impedance Voltage terminal: 200KΩ
Current terminal: 275Ω
Current input protection ±32 mA
Voltage input protection ±30V
Channel diagnostics Over or under range or open circuit condition by bit reporting for
analog inputs.
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