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FieldPoint 

 is a trademark of National Instruments Corporation. Product and company names 

mentioned herein are trademarks or trade names of their respective companies.

321633B-01

©

 Copyright 1997, 1999 National Instruments Corp. All rights reserved. June 1999

OPERATING INSTRUCTIONS

FP-DI-330

8-Channel, Universal Discrete 
Input Module

These operating instructions describe the installation, features, and 
characteristics of the FP-DI-330. For details on configuring and 
accessing the FP-DI-330 over a network, refer to the user manual 
for the particular FieldPoint network module you are using with 
the FP-DI-330.

Features

The FP-DI-330 is a FieldPoint discrete input module with the 
following features:

Eight discrete input channels

Universal inputs work with any voltage from 5 V TTL level up 
to 250 VDC/VAC

Compatible with sourcing, sinking, or power sensing 
applications

On/Off LED indicators

Hot plug and play operation

3,000 V input to output isolation

Double insulated for 250 V safe working voltage

–40 to +70 °C operation

Installation

The FP-DI-330 mounts on a FieldPoint terminal base (FP-TB-xx
unit. The hot plug and play operation of the FP-DI-330 allows you 
to install it onto a powered terminal base without disturbing 

Summary of Contents for FieldPoint FP-DI-330

Page 1: ...o the user manual for the particular FieldPoint network module you are using with the FP DI 330 Features The FP DI 330 is a FieldPoint discrete input module with the following features Eight discrete input channels Universal inputs work with any voltage from 5 V TTL level up to 250 VDC VAC Compatible with sourcing sinking or power sensing applications On Off LED indicators Hot plug and play operat...

Page 2: ...mly seated Figure 1 Module Installation Diagram Field Wiring The terminal base provides connections for each of the eight input channels and an external supply to power field devices Each channel can be wired for use with either a sourcing or sinking output device or to sense whether power is being delivered to a load Figure 2 shows examples of these basic wiring connections The connection of an e...

Page 3: ...COM INb INa INb INa INb INa INb INa Vsup Vsup Vsup Vsup COM COM COM COM INb Power Supply for Transducers 5 250 Volts Sinking NPN Open Collector 3 Wire Devices Powered From FP DI 330 Terminals Sourcing PNP Open Emitter Sinking Sourcing Sensing Power Applied to a Load V C Devices Powered Externally Load ...

Page 4: ... isolator registering as an ON condition The current limiting circuitry limits the amount of current flow to 1 5 mA even when the applied voltage is as high as 250 Vrms Each input is functionally isolated from the other inputs and may be wired independently but this is not a safety isolation Warning Do not mix circuits with hazardous voltages and human accessible circuits on the same module For mo...

Page 5: ...e not guaranteed to be either off or on The typical threshold voltage is 1 5 V Figure 2 shows connections to sourcing output devices sinking output devices and powered loads These devices should have OFF state leakage currents of less than 350 µA to ensure that they do not provide false ON state readings to the FP DI 330 The filter on the FP DI 330 input stages provides for a delay of approximatel...

Page 6: ...ed ON voltages described above the FP DI 330 may register the state as either ON OFF or as a signal alternating between ON and OFF Status Indicators Figure 4 shows the module label and status indicators You can remove the insertable label to see wiring diagrams for the input channels Figure 4 Status Indicators After the module has been inserted into a terminal base and power is applied the green P...

Page 7: ...nder normal conditions unless the product is specifically designed as the FP DI 330 is for such an application Even when a product like the FP DI 330 is used in applications with hazardous potentials follow these guidelines to ensure a safe total system The safety isolation of the FP DI 330 is from input to output not between channels on the same module If any of the channels on a module are wired...

Page 8: ... 1 ms Isolation 3 000 Vrms Safety isolation working voltage 250 Vrms designed per IEC 1010 as double insulated Physical Indicators Green POWER and READY indicators 8 green input state indicators Weight 130 g 4 5 oz Power Requirements Power from network module 200 mW Environment Operating temperature 40 to 70 C Storage temperature 55 to 100 C Relative humidity 5 to 90 non condensing Logic Level Min...

Page 9: ... insulation for 250 Vrms working isolation installation category II EMC Directive Immunity EN 50082 1 1994 Emissions EN 55011 1991 Group I Class A at 10 meters Mechanical Dimensions Figure 5 shows the mechanical dimensions of the FP DI 330 Dimensions are given in inches millimeters Figure 5 Mechanical Dimensions 4 31 109 5 3 60 91 44 4 22 107 19 ...

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