Siemens S7-300 CPU 31xC and CPU 31x Hardware and Installation Guide

This document introduces the hardware and installation manual of the SIMATIC S7-300 series, including installation sequence, templates, configuration, wiring, addressing, debugging, maintenance and repair, testing functions, diagnostics and troubleshooting.

Brand: Siemens
Document type: Installation Guide
Language: Chinese
Pages: 194
File format: PDF
File size: 1.2 MB
Updated: 29 September, 2023
Model: S7-300
MD5 checksum: 72DEE453816510FB6F1B2252B87FF446
PDF: Siemens S7-300 CPU 31xC and CPU 31x Hardware and Installation Guide PDF

About this manual

This guide covers the safety requirements and qualified‑personnel rules for installing and operating the S7‑300 CPU modules. It explains the applicable safety symbols, transport, storage and handling precautions.

The manual details the installation sequence, wiring and grounding, hardware configuration, debugging steps, testing functions, diagnostics and routine maintenance for the CPU 31xC and CPU 31x modules. It also includes reference tables, template overviews and appendices. This manual is written in Chinese.

What's inside

Safety Guidelines
Installation Sequence
Hardware Overview
Wiring and Grounding
Configuration and Programming
Testing and Diagnostics
Maintenance and Service
Appendix

Specifications

CPU 31xC order number	6ES7312-5BD0OT-OAB0
CSA certification	CSA C22.2 No. 142

Frequently asked questions

What safety precautions are required for installing the S7‑300 CPU modules?

Only qualified personnel may install and operate the device, and all safety symbols and warnings must be followed.

What are the order numbers for the CPU 31xC modules?

CPU 312C is 6ES7312-5BD0OT-OAB0, CPU 313C is 6ES7313-5BEOI-O0AB0, and other variants have similar 6ES‑ series numbers.

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