This Siemens manual describes communication features for SIMATIC S7-1500 CPUs and related ET 200 modules, covering services, protocols, security and…
The manual provides an overview of communication services, PG communication, HMI communication, open‑user communication, S7 communication, point‑to‑point links, OPC UA server functions, routing, connection resources, diagnostics and industrial Ethernet security for the SIMATIC S7‑1500 and ET 200 families. It also outlines the required knowledge, such as basic automation concepts and STEP 7 (TIA Portal) usage.
Detailed sections explain how to configure and manage communication protocols (TCP, ISO‑on‑TCP, UDP, Modbus TCP, FTP, SNMP, etc.), set up secure OPC UA connections, disable SNMP when required, and use firewall, log recording, NTP client and VPN features to protect industrial networks. This manual is written in Chinese.
| Supported CPU series | S7‑1500F, S7‑1500T, S7‑1500C, S7‑1500pro, ET200SP CPU |
|---|---|
| Supported Ethernet protocols | TCP, ISO‑on‑TCP, UDP, Modbus TCP, FTP, SNMP |
| SNMP capability | Can be disabled via 3.6.1 procedure |
SNMP can be disabled by following the procedure described in section 3.6.1 "禁用 SNMP" of the manual.
An OPC UA client can read PLC variable values, their data types, and CPU information such as server and endpoint details.