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Introduction cp371 – Kontron CP371 User Manual

Page 26

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Introduction

CP371

Page 1 - 10

© 2002 PEP Modular Computers GmbH

ID 23762, Rev. 02

Table 1-4: CP371 Analog Input Specifications

TYPE

DESCRIPTION

Input Types / Ranges

VOLTAGES: Single-ended:

0 to

1

5 V

0 to 10 V

Differential:

±

1

5 V

± 10 V

CURRENTS:

0 to 20 mA
4 to 20 mA

Channels

Standard: 16 channels total

(two clusters of 8 channels each)

Optional:

8 channels total (one cluster of 8 channels)

Channel Connections

Sixteen pairs of dedicated connector pins for plus and minus; sixteen separate
pins for configuring on board shunt resistors for current inputs; twelve ground
pins distributed over the connector

Conversion

Continuous serial sampling of input channels, serial multiplexed output of the
ADC; single measurement buffering for each channel in the ADC ProComm
controller

Throughput Rate

13.9 kHz per channel

Resolution

12 bit

Accuracy

See table 1-5

Input Filter (edge frequency)

15 kHz for single-ended
20 kHz for differential

Input Protection

8 kV ESD

Over Voltage/Current
Protection

Voltage: ± 24 V maximum
Current: 30 mA maximum

Isolation

2 kV process to system

Input Impedance

Voltage: 450 k ohm
Current: 250

k

ohm