20 MicroLogix™ Analog Input/Output Module
Publication 1762-IN005A-US-P
Input Specifications
Specification Value
Number of Inputs 2 differential (unipolar)
A/D Converter Type Successive approximation
Common Mode Voltage
Range
(1)
(1) For proper operation, both the plus and minus input terminals must be within ±27V of analog common.
±27 V
Common Mode Rejection
(2)
(2) V
cm
= 1 V
pk-pk
AC
> 55 dB at 50 and 60 Hz
Non-linearity (in percent full
scale)
±0.1%
Typical Overall Accuracy
(3)
(3) V
cm
= 0 (includes offset, gain, non-linearity and repeatability error terms)
±0.5% full scale at 0 to 55°C
±0.3% full scale at 25°C
Input Impedance Voltage Terminal: 200KΩ
Current Terminal: 250Ω
Current Input Protection ±32 mA
Voltage Input Protection ±30 V
Channel Diagnostics Over or under range or open circuit condition by bit reporting for
analog inputs.
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