Configuring Tags for Siemens S7 Ethernet Communication

Help Contents

Introduction

Before starting this walkthrough, we recommend reading the help topics on the Configuration Tool, and Getting Started. These topics provide background information about using the Configuration Tool and the concepts used in Fernhill SCADA.

You will also need the following information about the target PLC:

The walkthrough covers:

Create a Folder

1. Start Configuration Tool. Use one of the connection options on the Start Page to connect to Fernhill SCADA.

2. Select the Tag Window in the Configuration Tool.

3. In the Tags window, right click on the root entry: Database Icon localhost

4. Select Add new folder to create a new folder:

Tag View showing a new folder

Create a Siemens S7 Ethernet Channel Tag

1. Right click on Folder and select New Tag, followed by Siemens S7, followed by Siemens S7 Ethernet channel.

2. Change the name of the channel to Channel:

Tag View showing new Siemens S7 Ethernet Channel Tag

3. In the Properties Window enter suitable values for Siemens S7 Ethernet Channel Tag properties:

PropertyExplanation
HostThe IP Address of the Siemens S7 PLC Tag.

Create a Siemens S7 Ethernet PLC Tag

1. Right click on Folder and select New Tag, followed by Siemens S7, followed by Siemens S7 Ethernet PLC Tag.

2. Change the name of the new tag to PLC:

Tag View showing Siemens S7 Ethernet PLC Tag

3. In the Properties Window enter suitable values for the Siemens S7 Ethernet PLC Tag properties:

PropertyExplanation
ChannelClick the Browse button Browse button to open the browse dialog. Select the channel created earlier.
DestinationTSAPThe Transport Service Access Point (TSAP) of the connection to the CPU of the PLC.
SourceTSAPThe source TSAP used by the connection.

Note: Once the PLC tag is associated with the Channel tag, Fernhill SCADA will attempt to establish communications. You can monitor the status of the PLC tag in the Status Monitor Window.

Further Information

Siemens S7 TCP Autodetect Wizard

For how to automatically configure Fernhill SCADA to communicate with Siemens S7 PLCs using Ethernet.

Siemens S7 Ethernet channel

For information about Siemens S7 Ethernet channel tag.

Siemens S7 TCP/IP PLC

For information about Siemens S7 TCP/IP PLC tag.

Siemens S7 Driver

For information about the Siemens S7 Driver.

Glossary

For the meaning of terms used in Fernhill SCADA.