Active Channel Tag


The Active Channel Tag is a SCADA/HMI communication channel that actively polls and retrieves data from remote PLCs or devices.

Configuration Properties

The Active Channel Tag supports the configuration properties of the Channel Tag, plus these additional configuration properties:

Property Type Version Description
ReplyTimeout TIME 1.0 The maximum time to wait for a reply from devices on this communication channel.

Tag Commands

The Active Channel Tag supports the tag commands of the Channel Tag.

Relationships to Other Tag Types

The Active Channel Tag builds on the features of these tag types:

The Active Channel Tag is used as a building block for these tag types:

Further Information

Core Tag

To learn about properties common to all tags.

Alarm Handling

To learn about alarm management.


For definitions of the terms used in Fernhill SCADA.