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valz · Member 3 Joined: 26 Jul 2015 Posts: 771

Generation of a safe temperature value through redundant reading of non-safe temperature values
https://support.industry.siemens.com/cs/document/109812701/
In the application example "Formation of a safer temperature value by redundant reading of non-safe temperature values", two thermocouples are read in at two ET 200SP standard analog inputs and plausibility is checked in the fail-safe program.
In this example, fail-safe temperature detection up to SIL2 according to IEC 62061 and PLd according to EN ISO 13849-1 is implemented.

Two thermocouples are read in at two ET 200SP standard analog inputs and plausibility is checked in the fail-safe program.
Typical application scenarios for this are:
Monitoring for exceeding or falling below a limit temperature
Release of process steps only within a certain temperature range (maintenance/maintenance)
Tool-dependent temperature monitoring for production steps
Safe monitoring of a heating element
The advantage of this example is the simple integration into an existing system consisting of fail-safe SIMATIC S7 PLC and SIMATIC ET 200SP in the TIA Safety Advanced environment.

redundant reading of non-safe temperature values redundant reading of non-safe temperature values

redundant reading of non-safe temperature values redundant reading of non-safe temperature values

Documentation and Example Project
https://support.industry.siemens.com/cs/attachments/109812701/109812701_FTemperature_DOC_V1_0_en.pdf
https://support.industry.siemens.com/cs/attachments/109812701/109812701_FTemperature_PROJ_V1_0_TIAP_V16.zip
https://support.industry.siemens.com/cs/attachments/109812701/109812701_FTemperature_LIB_V1_0_TIAP_V16.zip
https://support.industry.siemens.com/cs/attachments/109812701/109812701_FTemperature_SE_TST_V1_0.Pdf
https://support.industry.siemens.com/cs/attachments/109812701/TUV_Report_FTemp.pdf

https://ulozto.net/tamhle/2hZyfWo7wNgx/

[URL=https://www.file-upload.net/download-14993190/TUV_Report_FTemp.pdf.html]TUV_Report_FTemp.pdf[/URL]
[URL=https://www.file-upload.net/download-14993191/109812701_FTemperature_SE_TST_V1_0.Pdf.html]109812701_FTemperature_SE_TST_V1_0.Pdf[/URL]
[URL=https://www.file-upload.net/download-14993192/109812701_FTemperature_LIB_V1_0_TIAP_V16.zip.html]109812701_FTemperature_LIB_V1_0_TIAP_V16.zip[/URL]
[URL=https://www.file-upload.net/download-14993194/109812701_FTemperature_DOC_V1_0_en.pdf.html]109812701_FTemperature_DOC_V1_0_en.pdf[/URL]
[URL=https://www.file-upload.net/download-14993195/109812701_FTemperature_PROJ_V1_0_TIAP_V16.zip.html]109812701_FTemperature_PROJ_V1_0_TIAP_V16.zip[/URL]
[URL=https://www.file-upload.net/download-14993193/Safety_characteristics_en_V17.pdf.html]Safety_characteristics_en_V17.pdf[/URL]