Siemens S7-300 CPU 31xC/31x Installation and Operating Instructions

This manual provides basic information on the CPU 31xC and CPU 31x, including installation, communication, storage principles, cycle time and response time, and the technical specifications of the CPU.

Brand: SIMATIC
Document type: User Manual
Language: Chinese
Pages: 356
File format: PDF
File size: 5 MB
Updated: 30 September, 2023
MD5 checksum: EAEBF167D750809667E59FE9B7C394EA
PDF: Siemens S7-300 CPU 31xC/31x Installation and Operating Instructions PDF

About this manual

The document is the official installation and operating guide for the SIMATIC S7-300 CPU 31xC and CPU 31x series. It covers safety warnings, required qualifications, and the overall scope of work needed to install and commission the CPUs in an automation system.

The guide is organized into sections such as Installation Sequence, S7-300 Components, Configuration, Wiring, Addressing, Diagnostics, and a Technical Specifications Overview. It also includes EMC and safety standards, mounting instructions, power‑supply selection, and detailed troubleshooting procedures. This manual is written in Chinese.

What's inside

Installation Sequence
S7-300 Components
Configuration
Wiring
Addressing
Diagnostics and Troubleshooting
Technical Specifications Overview
Safety and EMC Guidelines
Mounting and Rack Installation
Power Supply Selection

Specifications

CPU 312C order number	6ES7312-5BE03-0AB0, firmware V2.6
CPU 31xC order number	6ES7314-6CG03-0AB0, firmware V2.6

Frequently asked questions

Which firmware version is used for the CPU 31xC?

The CPU 31xC uses firmware version V2.6.

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