HB-37420-810-01-25F-EN SMX100 Installation manual.docx Page 72 of 260
Version: 25F
4 Safety related characteristics
4.1 General design, safety related architecture and characteristic data
The inner structure of all modules of SMX100 series with the exception of communication
interfaces consist of two separate channels with reciprocal comparison of results.
High quality diagnoses for fault detection are made in each of the two channels.
With respect to architecture and function the internal structure corresponds with category 4 of
EN 13849-1.
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Sensor PES Aktuator
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The overall architecture of base modules SMX100-1, -2, -4 show the following structure:
Dual reading of each input and diagnose by cross-comparison
The specific safety related characteristic data of the corresponding module can be taken from
the technical characteristic data in chapter 3.
There is a complex structure in conjunction with expansion modules.
Even bus communication should be taken into consideration in addition to structures of
expansion modules. Safety-relevant equivalent circuit diagram / architecture should be
calculated with reference to application structure.
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