Channels

Channels

The Channels section displays the I/O Channels window, through which you can enable/disable the I/O channels.

Highlight a channel and then click the Edit button to configure the parameters for that channel.

Analog

Overview

Analog channels monitor current/voltage input. Note that the internal jumpers must match the software setting (by default, they are set to Current); see Analog Input Module on page 383 to find out how to set the internal jumpers.

For example, in an industrial freezer warehouse, the IOLAN A4R2 is used to monitor humidity transducers, which are in place to help prevent freezer burn. If the humidity reaches a certain percentage (monitored by an Analog channel) a syslog message is sent to the Monitoring Application. The Monitoring Application then sends a command to the IOLAN via the Perle API that causes the Relay channel to activate an internal freezer dehumidifier. The relay is turned off when the Analog channel sends a clear syslog message to the Monitoring Application and the Relay channel is deactivated.

Network

Monitoring

Application

A4D2

perle

IOLAN

Relay

Analog I/O Analog

Relay

Industrial

Freezers

Analog

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Perle Systems 5500161-40 manual Channels, Monitoring Application A4D2, Analog I/O Analog, Industrial Freezers