Idec Micro PLC Tag

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The Idec Micro PLC Tag PLC Device Tag Icon provides a logical link to an Idec Micro PLC.

Configuration Properties

The Idec Micro PLC Tag supports the configuration properties of the PLC Device Tag with RTC Tag, plus these properties:

Property Type Version Description
Channel Reference 2.1 The Idec Micro Serial Communication Channel to the device.
Device USINT 2.1 The address of the PLC. Use a number in the range 0 to 31.
StringFormat WSTRING 4.6 The format of strings stored in registers in the PLC. For more information see Register String Format.

Tag Commands

The Idec Micro PLC Tag supports the tag commands of the >PLC Device Tag with RTC Tag plus these commands:

Tag Command Version Description
DirectWriteBit 2.3 Directly writes a single bit to an address in the PLC.
DirectWriteByte 2.3 Directly writes one or more bytes to an address in the PLC.

Example Configuration

This is an example of an Idec Micro PLC Tag at address 1, communicating via a serial channel called ".Remote Plant":

Channel.Remote Plant

Relationships to Other Tag Types

The Idec Micro PLC Tag builds on the features of these tag types:

Further Information

PLC Device Tag

For properties common to all PLC Devices with clock synchronization.

Idec Micro Serial Communication Channel

For more information on Idec Micro serial communications channels.

Idec Micro Register Blocks

For more information on the Idec Micro Register Block Tag tags that can be associated with Idec Micro PLC Tag tags.

Alarm Conditions

To learn about abnormal conditions in SCADA applications.


For the meaning of terms used in Fernhill SCADA.