Description

This 2085-IF4 is an AB Micro 850.

• Part Number/Catalog: No. 2085-IF4
• Product Type: Expansion I/O Module
• Inputs: 4
• Input Type: Analog, 0-20mA, Isolated, 1-bit
• Outputs: N/A
• Output Type: N/A

The Allen-Bradley 2085-IF4 is a Micro850 analog input module with 4 channels and 5 LED status indicators, which are made up of 4 red error indicators and 1 green health indicator, and it comes with a SAR conversion type. Mounting this module is done via a DIN rail or panel mount and the entire module measures 1.1 x 3.54 x 3.42 inches, while its approximate weight is 140 g. This module comes factory-calibrated and it does not support customer calibration.

The input resolution of this module is 14 bits, the voltage is 1.28 mV/cnt for both unipolar and bipolar, and the current is 1.28 µA/cnt. The data format on this module is left justified with 16-bit 2 s complement. It also has an update rate of less than 2 ms per enabled channel without a 50-60 Hz rejection, less than 8 ms for all channels, and 8 ms with 50-60 Hz rejection. The step response times of the 2085-IF4 module for up to a 63% range from 4-60 ms without 50-60 Hz rejection, depending on the number of the enabled channel and filter settings, and it is 600 ms with 50-60 Hz rejection.

This controller also has an input voltage terminal of +/- 10V configurable to 0-10V and a default input current terminal of 4-20 mA configurable to a terminal of 0-20 mA. Its input impedance is more than 1 MΩ for the voltage terminal and less than 100 Ω for the current terminal. The maximum overload of this module is continuous at 32 mA or 30V for one channel at a time.