Measurement-computing PointScan 200 Series rev.1.0 Manual do Utilizador descarregar pdf (Página 27)

PointScan/200 User’s Manual

9-25-01

Analog Output Modules 6-3

PointScan/204

Instrumentation Analog Input Module

Overview

Eight isolated input channels 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 8 (16 bit resolution)

Input Ranges J, K, E, R, T,B, C, N, S Thermocouples, 62 mV to

10V,

4 - 20 mA

Input Impedance (4-20 mA) 100 ohms Note: input voltage drop = 2 volts at

20 mA

Input Impedance (other ranges) 200K Ohms

Wiring

Two input terminals are provided for each measurement channel. Channel to channel isolation

is provided.

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 – AX7 30001 – 30008 Bipolar values: -32768 32767

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 35 36

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Measurement-computing PointScan 200 Series rev.1.0 Manual do Utilizador Página 27