ADLINK Technology PCIe-7256, Руководство пользователя, Страница: 11 / 40

Introduction 1
PCIe-7256
1 Introduction
ADLINK'S PCIe-7256 is a basic Digital I/O card for PCIe bus com-
puter in industrial applications. The PCIe-7256 provides 16 latch-
ing relay actuators and 16 opto-isolated digital inputs, and all
relays are Form C, suitable for ON/OFF control devices.
All digital input channels are identical non-polar and opto-isolated,
and each is switchable using RC or non-RC filter. All channels are
isolated and suitable for collecting digital inputs in noisy environ-
ments. COS (Change-of-State) interrupt is supported, whereby
when any digital input changes state, an interrupt is generated to
allow management of the external event.
Latching relays conserve power, and the status of each latching
relay output is indicated by LED, such that when the latching relay
is SET, its corresponding onboard LED is lit. Also enabled is
Board ID setting, providing identification of a specified card when
two or more PCIe-7256 cards are deployed in a single system,
and all I/O signals are transmitted via 68-pin SCSI connector.
1.1 Features
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PCI Express x1, Plug and Play
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16 latching relay actuator outputs, with output status
retained after power-off
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16 opto-isolated digital inputs
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LED indicators show relay status
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Jumper-selectable AC-filtered/non-AC-filtered input signals
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Onboard relay driving circuits
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COS (Change-of-State) detection for digital input channels
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Digital input channel 0 & 1 interrupt
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Dry contact input available
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Board ID setting