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Entry type: Application example Entry ID: 109748699, Entry date: 12/04/2018

Serial communication between SIMATIC S5 and SIMATIC S7-1500

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In automation technology, old plants are increasingly being retrofitted completely or step by step from SIMATIC S5 to SIMATIC S7-1500. This application example describes how to couple a SIMATIC S5 to a SIMATIC S7-1500 via serial communication.

A SIMATIC S5 station communicates via a serial interface with another station.

In the course of a partial migration, a SIMATIC S5 station will now be replaced by a SIMATIC S7-1500 station.

The example projects/scenarios in this document show the options available to establish a serial communication between the existing SIMATIC S5 controllers and the SIMATIC S7-1500. The following figure schematically shows the most important components and variants of this solution:

The application example describes the following serial communications:
  • 3964(R) protocol
  • Freeport (S7-1500) or "Open Driver" (SIMATIC S5)

As hardware interfaces, a CP 544 is used on the SIMATIC S5 side and a and a communication module CM PtP RS232 BA on the SIMATIC S7-1500 side.

You receive copy templates that you can quickly use and enhance in your own migration projects. You only need basic knowledge of SIMATIC S5. However, special hardware know-how is not required.

Documentation and Sample Project
  Documentation (1,4 MB)
 Registrierung notwendig  Project for STEP 7 V15 (917,0 KB)
 Registrierung notwendig  Project for SIMATIC S5 (238,6 KB)

Further Information
Ethernet Communication (ISO on TCP) between SIMATIC S5 and SIMATIC S7-1500 Controllers
Ethernet communication (ISO Transport protocol) between SIMATIC S5 and SIMATIC S7-1500

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