The 16-Channel Analog Current Input module offers up to 16 single-ended input channels, each equipped to convert an analog input signal into a digital value suitable for various application needs. This module features three distinct input ranges:
4 to 20 mA
0 to 20 mA
4 to 20 mA Enhanced
Specifications for IC693ALG223 - 16-Channel Analog Current Input Module
Number of Channels: 1 to 16 selectable; single ended Input Current Ranges: 0 to 20 mA, 4 to 20 mA, and 4 to 20 mA Enhanced (selectable per channel) Calibration: Factory calibrated to:
4 µA per count on 4 to 20 mA range
5 µA per count on 0 to 20 mA and 4 to 20 mA Enhanced range
Update Rate: 13 msec (all 16 channels) Resolution at 4-20 mA: 4 µA (4 µA/bit) Resolution at 0-20 mA: 5 µA (5 µA/bit) Resolution at 4-20 mA Enhanced: 5 µA (5 µA/bit) Absolute Accuracy: ± 0.25% of full scale @ 25°C (77°F); ± 0.5% of full scale over specified operating temperature range
Linearity:
< 1 LSB from 4 to 20 mA (4 to 20 mA range)
< 1 LSB from 100 µA to 20 mA (0 to 20 mA and 4 to 20 mA Enhanced ranges)
Isolation: 1500 volts between field side and logic side Common Mode Voltage: 0 volts (single-ended channels) Cross-Channel Rejection: > 80 dB from DC to 1 kHz Input Impedance: 250 ohms Input Low Pass Filter Response: 19 Hz External Supply Voltage Range: 20 to 30 VDC External Supply Voltage Ripple: 10% Internal Power Consumption:
120 mA from the +5 volt bus on the backplane
65 mA from 24 VDC external user supply (in addition to current loop currents)
