Siemens SIMATIC ET200SP Function Manual page 49

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The values in the DataToSafety data block are written by the standard user program and read

by the safety program. The values in the DataFromSafety data block are written by the safety

program and read by the standard user program. Since this example does not contain a

standard user program, these two global data blocks were not included. They should be

added by the user of this example.

Note

Further information on the data exchange between standard user program and safety

program can be found in the "SIMATIC Safety - Configuring and Programming" Manual.

(https://support.industry.siemens.com/cs/ww/en/view/54110126)

Safety engineering with AS‑Interface in the SIMATIC ET 200SP, including typical circuit diagram

Function Manual, 08/2020, A5E44991382002A/RS-AB/002

Circuit diagram example

4.5 TIA Portal programming

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