Siemens SIMATIC S7-1500 Communication Functions Manual

This Siemens manual describes communication features for SIMATIC S7-1500 CPUs and related ET 200 modules, covering services, protocols, security and…

Brand: Siemens
Document type: User Manual
Language: Chinese
Pages: 238
File format: PDF
File size: 5.6 MB
Published: 30 September, 2026
Updated: 30 September, 2026
MD5 checksum: 269228C13E7644CF0B912773A42B3ADA
PDF: Siemens SIMATIC S7-1500 Communication Functions Manual PDF

About this manual

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.

What's inside

Product Overview
Communication Services
PG Communication
HMI Communication
Open‑User Communication
S7 Communication
Point‑to‑Point Connection
OPC UA Server
Industrial Ethernet Security

Specifications

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

Frequently asked questions

How can SNMP be disabled on a CPU?

SNMP can be disabled by following the procedure described in section 3.6.1 "禁用 SNMP" of the manual.

What data can an OPC UA client access from the server?

An OPC UA client can read PLC variable values, their data types, and CPU information such as server and endpoint details.

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