1746-NIO4I  Allen-Bradley SLC 500 Analog Combination Module

The 1746-NIO4I is an SLC 500 Four Channel Analog I/O module by Allen-Bradley. This module is combination module which comes with Two (2) inputs and Two (2) output points in a single slot module. It has 2 differential voltage or current input points and 2 current outputs with an overall backplane current draw of 55mA at 5 Volts and 14 5mA at 24 Volts. Its points have a common mode voltage of -20 to 20 Volts with a common module rejection signal of 105 dB at 60 Hertz and a Normal mode rejection signal of 55dB at 60 Hertz. The 1746-NIO4I uses the Sigma-Delta ADC converter with a converter resolution of 16 bits, +/-1 LSB, and 0.01% repeatability and Non-Linearity. Its normal input current ranges between -20 and +20 mA with a current impedance of 250 Ohms and a resolution of 1.22 A per LSB. The 1746-NIO4I has an overall accuracy of +/-0.642% at 0 to 60 degrees Celsius with a drift accuracy of +79 ppm/5 degrees Celsius and maximum gain and drift errors of +/- 0.556% and +/- 67ppm/ degrees Celsius.

The 1746-NIO4I also has a voltage input rating of -10 to 10 Volts DC and a 760 KOhms voltage impedance at a resolution of 305 microVolts per Least Significant Bit (LSB). It also has an accuracy of +/- 0.504%, and a drift accuracy and error of +/- 63 ppm/degree Celsius and +/- 57 ppm/degree Celsius. The 1746-NIO4I offers overvoltage at either 220 Volts AC (RMS) or 220 Volts DC (continuous). The current outputs have a load range of 0 to 500mA with its normal range at 0-20 mA and a 5% over-range capability at 2.56348 microA per LSB signal resolution. The 1746-NIO4I also has an overall accuracy of ±0.541% with a drift accuracy of ±70 ppm/degree Celsius and a gain and offset error of ±0.516% and +/-12 LSB. The entire module has a 500 Volt-tested isolation between fields in the wiring-to-backplane isolation and it has an aggregate update time of 512 microSeconds for all channels. The 1746-NIO4I’s operational temperature ranges between 0 and 60 degrees Celsius at a 5 to 95% non-condensing relative humidity.

1746-NT4