Perle Systems Sds4 Manuel d'utilisateur télécharger pdf (Page 179)

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Serial Port Profiles

Input Signal Field Descriptions

See Digital I/O Extension for information about the I/O Extension tab.

Configure the following parameters:

Description Provide a description of the channel, making it easier to identify.

Data Options: Maximum 20 characters, including spaces

Latch Latches (remembers) the activity transition (active to inactive or inactive to

active).

Data Options: None, Inactive-to-Active, Active-to-Inactive

Default: None

Invert Signal When enabled, inverts the actual condition of the I/O signal in the status;

therefore, an inactive status will be displayed as active.

Default: Disabled

Trigger When the trigger condition is met, triggers the specified alarm action.

Data Options:

z Disabled—No alarm settings. This is the default.

z Inactive—When the expected Digital input is active, going inactive will

trigger an alarm.

z Active—When the expected Digital input is inactive, going active will

trigger an alarm.

Default: Disabled

Auto Clear Mode When enabled, automatically clears the alarm when the trigger condition

changes; for example, if the

Trigger is Inactive and the alarm is triggered, once

the input becomes active again, the alarm will automatically be cleared

Default: Enabled

Manual Clear

Mode

When enabled, a triggered alarm must be manually cleared.

Default: Disabled

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Perle Systems Sds4 Manuel d'utilisateur Page 179

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