I/O Module User's Manual

Analog Input module
2-
8 ADAM 5000 IO modules User’s Manual
2.3 ADAM-5017H 8-channel high speed analog input module
The ADAM-5017H is a 12-bit plus sign bit, 8-channel analog differential
input module that provides programmable input ranges on each channel. It
accepts millivolt inputs (± 500 mV, 0-500 mV), voltage inputs (±1 V, 0-1V, ±2.5 V,
0-2.5 V, ±5 V, 0-5 V, ±10 V and 0-10 V) and current inputs (0-20 mA and 4-20 mA;
requires a 125 ohms resistor). The module provides data to the host
microprocessor in engineering units (mV, V or mA) or two’s complement
format.
Its sampling rate depends on the data format received: up to 100 Hz
(total). Space is reserved for 125-ohm, 0.1%, 10 ppm resistors (See Figure2-9).
Each input channel has 3000 V
DC
of optical isolation between the outside
analog input line and the module, protecting the module and peripherals from
high input line voltages. Addition- ally, the module uses analog multiplexers
with active over-voltage protection. The active protection circuitry assures
that signal fidelity is main- tained even under fault conditions that would
destroy other multiplex- ers. The analog inputs can withstand a constant 70
Vp-p input with ±15V supplies.
Figure 2-6: ADAM-5017H module frontal view