Analog Input module
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 VDC 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
2-8 ADAM 5000 IO modules User’s Manual