Advantech PCI-1710UL Bedienungsanleitung PDF herunterladen (Seite 12)

Signal Conditioning Modules and Terminal Boards

Features

PCLD-8710

PCLD-8712

Introduction

The PCLD-8710 is designed to match multifunction cards with 68-pin SCSI-II connectors, such as the PCI-1710U/UL, PCI-1710HGU, PCI-1711U/UL, PCI-1716/L cards. This screw-

terminal board also includes cold junction sensing circuitry that allows direct measurements from thermocouple transducers. Together with software compensation and linearization,

every thermocouple type can be accommodated. The PCLD-8712 Screw-terminal Board provides convenient and reliable signal wiring for the PCI-1712/L of which has a 68-pin

SCSI-II connector.

Due to its special PCB layout you can install passive components to construct your own signal-conditioning circuits. The user can easily construct a low-pass ﬁlter, attenuator or

current shunt converter by adding resistors and capacitors on board’s circuit pads.

Applications

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

Signal conditioning circuits can be implemented as illustrated in the following

examples:

a) Straight-through connection (factory setting)

RAn = 0 : (short)

RBn = none

Cn = none

c) 10 : 1 voltage attenuator:

RAn = 9 K:

RBn = 1 K:

Cn = none

Attenuation =

(Assume source impedance << 10 K:)

d) 4 ~ 20 mA to 1 ~ 5 V

signal converter:

RAn = 0 : (short)

RBn = 250 : (0.1% precision resistor)

Cn = none

Ordering Information

 PCLD-8710 DIN-rail Wiring Terminal Board with CJC Circuit

 PCLD-8712 DIN-rail Wiring Terminal for PCI-1712/L

 PCL-10120-1E 20-pin Flat Cable, 1 m

 PCL-10120-2E 20-pin Flat Cable, 2 m

 PCL-10168-1E 68-pin SCSI Shielded Cable, 1 m

 PCL-10168-2E 68-pin SCSI Shielded Cable, 2 m

b) 1.6 kHz (3 dB) low pass ﬁlter

RAn = 10 K:

RBn = none

Cn = 0.01 μF

f3dB

2 RAn.Cn

RAn R n

PCLD-8710 PCLD-8712

DIN-rail Wiring Terminal Board with CJC Circuit

DIN-rail Wiring Terminal for PCI-1712/L

 Low-cost screw-terminal with 68-pin SCSI-II connector

 Onboard CJC (Cold Junction Compensation) circuits for direct thermocouple

measurement (PCLD-8710)

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

voltage attenuator and current shunt

 Industrial-grade screw-clamp terminal blocks for heavy-duty and reliable

connections

 DIN-rail mounting case for easy mounting

 Supports PCI-1710U/UL, PCI-1710HGU, PCI-1711U/UL, PCI-1716/L

(PCLD-8710) and PCI-1712/1712L (PCLD-8712)

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