Measurement-computing PointScan 200 Series rev.1.0 Manuale Utente Scaricare il pdf (Pagina 26)

6-2 Analog Output Modules

9-25-01

PointScan/200 Users Manual

PointScan/202

High Density 4-20 mA Analog Input Module

Overview

Sixteen 4-20 mA inputs provide 16 bit high resolution analog measurements. More information can be

found in the on-line help supplied with the IO Toolkit.

Number of Channels 16 (16 bit resolution)

Input Range 4 - 20 mA

Input Impedance 100 ohms Note: input voltage drop = 2 volts at 20 mA

Wiring

A single input terminal is provided for each measurement channel. Care must be taken to externally provide

a suitable instrumentation ground for these single ended input circuits.

Current Shunts

Precision 100 ohm current shunts, beneath the hinged access door in the wiring base, pass current and

maintain loop integrity even if the module is unplugged. A spare shunt is provided and may be simply

inserted in place of any socketed shunt that open circuits as a result of a current overload.

I/O Registers

Function IOtech Registers Modbus Registers

Analog Inputs AX0 - AX15 30001 - 30016 Bipolar values: -32768 32767

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 35 36

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Measurement-computing PointScan 200 Series rev.1.0 Manuale Utente Pagina 26