Spectrum Controls Micro850 User Manual page 8

1-2 Chapter 1, Module Overview
User's Manual Pub. 0300306-01 Rev. A
The 2085sc-IF16C/V input modules measure current or voltage input data. The
module supports:
 Sixteen input channels.
 2085sc-IF16C module: Current measurements. The module measures the
channel input current across a low-drift precision resistor, measures the
voltage, and converts the voltage to a current reading.
2085sc-IF16V module: Direct voltage measurements. There is no low-drift

precision resistor installed, and the channel accepts the voltage source
directly.
Open-wire detection (voltage ranges and current 4-20 mA range).

 Range scaling of input data.
 High and low process alarms that provide a warning on under- or over-range
detection (from user-defined values).
 Four data formats.
 Four filter frequency setup.
 Disabling open-wire detection for any, or all, channels.
All inputs have fault tolerance and ESD protection to avoid damage to circuitry
on the board. The modules use 50 VAC working Reinforced Insulation between
the inputs and the backplane. Individual channels are not isolated from each
other.
The 2085sc-IF16 modules use two sets of 20-bit Sigma-Delta analog-to-digital
converters to achieve a 16-bit resolution. The modules digitally convert and store
analog data from either the current or voltage input type. Each input channel is
individually configured via Rockwell-provided Connected Component
Workbench (CCW) software for the Micro850 family of PLC controllers, and
with the Module Configuration Converter utility from Spectrum Controls, Inc.
The module is factory calibrated and tested before shipping. After installation,
the modules begin operation in a default, usable condition:
 The default configuration for the 2085sc-IF16C is for all channels enabled in
the 4 to 20 mA range with the 17 Hz filter in Engineering ×1 units.
 The default configuration for the 2085sc-IF16V is for all channels enabled in
the ±10 V range with the 17 Hz filter in Engineering ×1 units.