Data Address Format

Help Contents

Introduction

Fernhill SCADA interfaces to many different data sources. A data source often contains multiple data items, where each data item has an "Address". The format of the "Address" depends on type of the data source.

In Fernhill SCADA the Data Address Format is a text string that defines the "Address" of a data item.

Where Used

The Data Address Format is used in these locations:

Format

Use this table to choose the correct Data Address Format for the type of data source:

Data Source TypeData Address Format
Allen Bradley PLC Depends on the Allen Bradley PLC Family:
Allen Bradley Register Block An Allen Bradley PLC File Data Address.
BACnet Device Tag A BACnet Data Address.
DNP3 Outstation Tag A DNP3 Point Address.
File Scanner or URL Scanner Depends on the file type:
  • CSV files: the location of the variable in the file using spreadsheet notation. For example: B5 represents row 5 and column 2.
  • JSON files: the result of the JSONata expression.
GE Fanuc PLC A GE Fanuc PLC Data Address.
Idec Micro PLC An Idec Micro PLC Data Address.
Idec Micro Register Block An Idec Micro PLC Data Address.
IEC 61131-3 Program A reference to a global variable.
Mitsubishi Melsec PLC A Mitsubishi Melsec PLC Data Address.
Mitsubishi Melsec Register Block A Mitsubishi Melsec PLC Data Address.
Modbus Device Depends on the DataAddressFormat property of the Modbus Device Tag:
Modbus Register Block Depends on the DataAddressFormat property of the associated Modbus Device Tag:
MQTT Connection A string formatted with the MQTT IOItemName Format.
ODBC Query The location of the result in the result set using spreadsheet notation, for example B5 represents row 5 and column 2.
Omron PLC using FINS An Omron PLC Data Address.
Omron PLC using Host Link An Omron PLC Data Address.
Omron Register Block An Omron PLC Data Address.
OPC Classic Connection The OPC item name.
OPC UA Connection An OPC UA Node Identifier.
Random Generator A property name of the random generator.
Siemens S7 Ethernet PLC A Siemens S7 PLC Data Address.
Siemens S7 Serial PLC A Siemens S7 PLC Data Address.
Siemens S7 Memory Block A Siemens S7 PLC Data Address.
SNMP Agent The OID of the variable in the SNMP Agent.

Further Information

Drivers

For information about all drivers in Fernhill SCADA.

Configuration Tool

For more information about the Fernhill SCADA configuration tool.

Glossary

For the meaning of terms used in Fernhill SCADA.