S5-95F
S5-95F Failsafe Mini PLC
1
S5-95F Failsafe Mini PLC
The SIMATIC S5 system family offers programmable controllers in all performance classes, from the
mini PLC up to the high-end PLC.
For your safety-oriented applications you can choose between the moduar S5-115F and the compact
S5-95F. Both programmable controllers have been prototype-tested: the S5-115F by the Bavarian
Technical Inspectorate (TÜV-Bayern), the S5-95F by the Bavarian Technical Inspectorate (TÜV-
Bayern) and by the Institute for Industrial Safety of the Statutory Industrial Accident Insurance
Institution (BIA). Both programmable controllers meet a number of safety regulations which are listed
in the prototype test certificate. A copy of the prototype test certificate can be obtained from us on
request (see Appendix E). A summary of applications and their safety regulations is contained in the
following section (see section 1.1).
The S5-95F meets the following requirements for safety-oriented applications:
•
Safety classes 2 to 5, in conformity with TÜV manual
•
Safety Integrity Levels 1 to 3, in conformity with IEC 65A (Sec) 123
•
Quality levels 1 to 6, in conformity with DIN V 19250
The quality levels of DIN V 19250 can be compared with the Safety Integrity Level in accordance
with IEC 65A (Sec) 123, Fig. 7 of the normative Annex A (see Table 1-1).
TÜV Safety Classes
The German Technical Inspectorate (TÜV) has arranged the requirements laid down in the
regulations into five safety classes with the strictest requirements in class 1. It should be noted that
the safety class is not necessarily an indication of the risk involved in the areas of application in
question.
Integrity Level to IEC 65A (Sec) 123 (05.92)
Safety Integrity distinguishes between classes 1 to 4, with the lowest requirements in class 1. Safety
Integrity can be defined as follows:
Safety Integrity is the likelihood of a safety-related system satisfactorily performing the required
safety functions under all the stated conditions within a stated period of time.
The quality levels to DIN V 19250 and the Safety Integrity Levels can be compared as follows:
Table 1-1. Comparison of Quality Levels to DIN V 19250 and
System Integrity Levels to IEC 65A (Sec) 123
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
Quality Level to
DIN V 19250
System lntegrity Level
to IEC 65A (Sec) 123
2 and 3
1
4
2
5 and 6
3
7 and 8
4
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EWA 4NEB 812 6210-02
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