Siemens S7-200PLC Bedienungsanleitung PDF herunterladen (Seite 3)

Objective

Chapter 1.

1. Objective

The objective of this document is to explain how the eWON can poll data registers out of one or

more PLCs.

Polling PLC data registers implies the following steps :

1. Linking the eWON with the PLC

2. Configuring the eWON IO Server

3. Creating tags in the eWON

4. Monitoring tags

Advanced explanations are indicated by this icon.

2. Hardware requirements

In order to follow this guide you'll need:

 PC suitable to connect to the eWON

 A Siemens PLC (S7-200)

 A suitable eWON

From a computer running a web-browser, you will configure the IO Server in the eWON to poll

different types of PLC data registers.

Access to the eWON web server is done either by using (one of) its local LAN port(s) or by

another type of access like VPN IP address, etc.

Connection to the PLC can be either PPI or ISOTCP Ethernet depending on the available

interfaces on the PLC

The PPI or ISOTCP Ethernet connected PLC will have its registers read by the tags configured

in the IO Server of the eWON.

Polling Data Registers from Siemens S7-200 PLC Series (How to) Page 3/21

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Siemens S7-200PLC Bedienungsanleitung Seite 3