Siemens Industry Online Support
Siemens AG
Entry type: Application example Entry ID: 109478811, Entry date: 09/24/2015

Migration Guide: SIMATIC S7-300/400 to SIMATIC S7-1500

  • Entry
  • Associated product(s)
This migration guide contains recommendations and notes for users who are currently using SIMATIC S7-300/400 automation systems and plan to migrate to the new SIMATIC controller generation S7-1500.

The new controller generation SIMATIC S7-1500 has an up-to-date system architecture and, together with TIA Portal, offers new and efficient programming and configuration options. To be able to use these advantages, it is important that users who are currently using SIMATIC S7-300/S7-400 automation systems and plan to migrate to the new SIMATIC controller generation SIMATIC S7-1500, develop a detailed comprehensive concept for planning and implementing the pending migration. This requires thorough clarification in the run-up to migration.

Figure 1

The objective of this document is to support plant migration to a modern controller generation and cover the most important questions that may arise in this context. This document contains recommendations and notes for this migration.

This document covers the following key issues relating to plant migration from S7-300/S7-400 to S7-1500:

  • Planning a plant migration
  • System architecture S7-300/S7-400 and S7-1500
  • Hardware migration
  • Software conversion
  • Overview of the most important recommendations
  • Comparison of SIMATIC S7-300/S7-400 and S7-500 components

This document is not valid with SIMATIC S7-400 in combination with PCS 7.

Migration Guide
  109478811_GuideForMigration_S7-300_S7-1500_en.pdf (1,9 MB) 

Continuing Information
Migration Plants with SIMATIC (TIA Portal)
TIA Portal - An Overview of the Most Important Documents and Links
Getting Started SIMATIC S7-1500

Additional Keywords
Compendium, STEP 7, STEP 7 TIA Portal, programming guidelines

Security information
In order to protect technical infrastructures, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art IT security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about cyber security, please visit
Support to the statistics
With this function the IDs found are listed according to number (format .txt).

Generate list
Copy URL
Display page in new design
mySupport Cockpit