Idec Micro PLC Data Address

Introduction

Data in Idec Micro PLC Devices is stored in different locations depending on the intended use of the data. For example, there are separate locations for I/O, Timer Values, Data Registers and so on.

The Idec Micro PLC Data Address is a string that defines the location of data in an Idec Micro PLC. It consists of device type letters, followed by four decimal digits:

Device Type	Format	Notes
Input	Innnn	Least significant digit is octal 0-7
Output	Qnnnn	Least significant digit is octal 0-7
Internal Relay	Mnnnn	Least significant digit is octal 0-7
Shift Register	Rnnnn
Timer (current value)	Tnnnn
Counter (current value)	Cnnnn
Data Register	Dnnnn

Note: The numbers in Idec Micro Data Addresses are zero-based.

Where Used

The Idec Micro PLC Data Address is used in these contexts:

In the IOItemName property of an I/O Analog Data Point Tag when the tag is associated with an Idec Micro PLC.
In the IOItemName property of a I/O Digital Data Point Tag when the tag is associated with an Idec Micro PLC.
In the IOItemName property of a I/O Double Word Data Point Tag when the tag is associated with an Idec Micro PLC.
In the IOItemName property of a I/O Word Data Point Tag when the tag is associated with an Idec Micro PLC.
In the DataAddress property of an Idec Micro Register Block.
In the DataAddress parameter of the DirectWriteBit Tag Command when used with an Idec Micro PLC.
In the DataAddress parameter of the DirectWriteByte Tag Command when used with an Idec Micro PLC.

Data Address Editor

The Data Address Editor provides a convenient tool to build Idec Micro Data Address strings.

To open the Data Address Editor, click the Browse button of the IOItemName or DataAddress property:

Further Information

Idec Micro Register Block Tag

To learn about Idec Micro Register Block Tags.

Idec Micro Driver

For an overview of the Idec Micro Driver.

Glossary

For the meaning of terms used in Fernhill SCADA.