Advantech PC-LabCard PCI-1784 Bedienungsanleitung PDF herunterladen (Seite 16)

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Features

Signal Conditioning Modules and Terminal Boards

d) 4 ~ 20 mA to 1 ~ 5 VDC signal converter:

RAn = 0 Ω (short)

RBn = 250 Ω (0.1% precision resistor)

Cn = none

Pin Assignments

Ordering Information

 PCLD-780 Screw terminal Board, two 1m 20-pin ﬂat cables

(PCL-10120-1)

 PCLD-880 Industrial Wiring Terminal Board, two 1m 20-pin ﬂat

cables (PCL-10120-1), and one PCL-10501 adapter

(20-pin analog ﬂat connector to DB37 connector)

 PCL-10137-1 DB37 cable assembly, 1m

 PCL-10137-2 DB37 cable assembly, 2m

 PCL-10137-3 DB37 cable assembly, 3m

Applications

 Field wiring for analog and digital I/O channels of PC-LabCard™ products which

employ the standard 20-pin ﬂat cable connectors or DB37 connectors

(only PCLD-880)

 Signal conditioning circuits can be implemented as illustrated in the following

examples:

a) Straight-through connection (factory setting)

RAn = 0Ω jumper

RBn = none

Cn = none

b) 1.6 kHz (3dB) low pass ﬁlter

RAn = 10 KΩ

RBn = none

Cn = 0.01ΩF

f3dB =

c) 10 : 1 voltage attenuator:

RAn = 9 KΩ

RBn = 1 KΩ

Cn = none

Attenuation =

(Assume source impedance << 10 KΩ)

Screw Terminal Board

Industrial Wiring Terminal Board

w/Adapter

PCLD-780

PCLD-880

 Pin to pin design

 Low-cost universal screw-terminal boards for industrial applications

 40 terminal points for two 20-pin ﬂat cable connector ports

 Reserved space for signal-conditioning circuits such as low-pass ﬁlter,

voltage attenuator and current-to-voltage conversion

 Table-top mounting using nylon standoffs. Screws and washers provided for

panel or wall mounting

PCLD-780 only

 Screw-clamp terminal-blocks allow easy and reliable connections

 Dimensions: 102 x 114 mm (4.0" x 4.5")

PCLD-880 only

 Supports PC-LabCard™ products with DB-37 connectors

 Industrial-grade terminal blocks (barrier-strip) permit heavy-duty and reliable

connections

 Dimensions: 221 x 115 mm (8.7" x 4.5")

Introduction

PCLD-780 and PCLD-880 universal screw-terminal boards provide convenient and reliable signal wiring for PC-LabCard™ products with 20-pin ﬂat-cable connectors. PCLD-880

is also equipped with a DB37 connector to support PC-LabCard™ products with DB37 connectors.

PCLD-7�

You can easily construct a low-pass ﬁlter, attenuator or current-to-voltage converter by adding resistors and capacitors onto the board’s circuit pads.

PCLD-780 PCLD-880

Courtesy of Steven Engineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: (800) 670-4183 ● www.stevenengineering.com

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