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| Function | Operation Mode | ISO 13849-1 | IEC 61508-2 | PFH [1/h] | TM [Years] | SFF [%] |
|---|---|---|---|---|---|---|
| STO | single channel | PL d, CAT 2 | SIL 2 | 1.88E-07 | 20 | 89 |
| STO | dual channel | PL d, CAT 3 | SIL 2 | 5.64E-09 | 20 | 87 |
| STO | dual channel with periodical testing | PL d, CAT 4 | SIL 3 | 5.64E-09 | 20 | 87 |