Perle Systems Sds4 Manuel d'utilisateur télécharger pdf (Page 280)

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Channels

Digital I/O Extension

Overview

The Digital I/O extension feature connects a digital input signal to digital output(s)/relay(s) and/or a

TCP/IP application over an IP network. Therefore, when the state of the digital input changes, you

can also change the state of the digital output or relay channel or output serial signal pin on a local

I/O channel(s), other IOLAN I/O channels, other IOLAN serial signal pins, or the data can be sent to

an application(s).

For example, when the door opens (I/O digital input sensor) in a factory, a light goes on in the

reception office (remote IOLAN relay channel), and the door open/close is logged by an application

on a remote host.

Active Signal

Width

How long the channel will be active during the pulse mode.

Range: 1-9999 x 100 ms

Default: 1 (100 ms)

Delay When a deactivate command is issued, a delay is implemented before the

command is executed.

Range: 1-9999 x 100 ms

Default: 1 (100 ms)

Failsafe Action When there has been no I/O activity within the specified time (set in the I/O

Interfaces, Settings on the Failsafe Timer tab) and the Failsafe Timer is

triggered.

Data Options:

z None—The state of the Digital/Relay output remains the same, no change.

z Activate Output—Activates the channel.

z Deactivate Output—Deactivates the channel.

Default: None

perle

IOLAN

perle

Remote Host

Network

Reception

Front Door

Warehouse

IOLAN

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Perle Systems Sds4 Manuel d'utilisateur Page 280

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