Siemens WINCC OPC Communication with S7-1200 CPU User Manual

About this manual

This manual explains the concepts of OPC and how it enables data exchange between WINCC and Siemens S7-1200 CPUs over Ethernet. It covers the basics of OPC, the SIMATIC NET communication framework, and the required hardware and software components.

Step‑by‑step instructions show how to set up a PC Station, configure the SIMATIC NET OPC server, and establish the OPC connection to the S7‑1200 CPU. The document also includes configuration details such as IP address settings and required STEP 7 and SIMATIC NET versions. This manual is written in Chinese.

What's inside

• OPC Concept
• SIMATIC NET Overview
• PC Station Hardware Requirements
• STEP 7 Configuration
• OPC Server Setup
• WINCC and S7‑1200 OPC Communication

Specifications

Frequently asked questions

What hardware is needed for OPC communication with the S7‑1200?

You need an S7‑1200 CPU, a PC with a standard Ethernet interface, and a TP module.

Which software versions are required to set up the OPC connection?

STEP 7 Basic V10.5, STEP 7 V5.4, and SIMATIC NET V7.1 are required.