Measurement-computing PointScan 200 Series rev.1.0 Manuale Utente Scaricare il pdf (Pagina 23)

PointScan/200 User’s Manual

9-12-01

Analog Input Modules 5-

Discrete Output Modules 5

PointScan/243

8 Channel High Output Current Module

Overview

Eight discrete output channels provide up to 3 Amps DC to motor contactors, valves, and other loads.

Overload and thermal shutdown protection are provided. Each of the eight outputs may optionally be

configured as Time Proportioned Outputs that pulse ON at a duty cycle proportional to an analog output

control program. More information may be found in the on-line help supplied with the IO Toolkit.

Number of Channels 8 discrete outputs connected to a common DC source

Output Voltage Range 10 - 30 VDC

Max. Load per Output 3 Amps

Max. Load per Module 10 Amps

Max. Inrush Current 10 Amps (for 100 mS)

Wiring

Two terminals, including a ground return, are provided for each output channel. All channels are powered

by a common DC source which is connected to the DC power input terminal.

I/O Registers

Function IOtech Registers Modbus Registers

Discrete Outputs Y0 - Y7 00001 - 00008

TPO Values AY0 - AY7 40001 - 40008 0 to 100% ON: 0 32767

TPO Feature

Time proportioned outputs pulse ON and OFF with a duty cycle proportional to an analog value stored in

an analog output register. TPO outputs are a low cost way to get smooth proportional control of heaters and

other process variables. Typically, TPO analog output registers are assigned to the output of PID or other

control program. Use the IO Toolkit to set pulse cycling as fast as 10 mS or as slow (many minutes) as your

system dynamics require. Each output may be individually configured as a TPO or ordinary discrete output.

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Measurement-computing PointScan 200 Series rev.1.0 Manuale Utente Pagina 23