Siemens SIMATIC HMI TP1000F Mobile RO Operating Instructions Manual page 172

Technical specifications
9.7 Technical specifications
Safety characteristics for the HMI devices and the associated connection boxes
● In accordance with IEC 61508
● In accordance with IEC 13849-1
Safety characteristics (compatibility with PN basic and PN plus connection boxes)
● In accordance with IEC 61508
● In accordance with IEC 13849-1
172
Maximal attainable safety integrity level
Mode of operation
Hardware fault tolerance (HFT)
Classification
Mean time to Restoration (MTTR)
Probability of a dangerous failure per hour (PFH)
Probability of a dangerous failure on demand (PFD)
Lifetime
Meantime to Failure (MTTFd)
Diagnostic Coverage (DCavg)
Performance Level
Category
Maximal attainable safety integrity level
Mode of operation
Hardware fault tolerance (HFT)
Classification
Mean time to Restoration (MTTR)
Probability of a dangerous failure per hour (PFH)
Probability of a dangerous failure on demand (PFD)
Lifetime
Meantime to Failure (MTTFd)
Diagnostic Coverage (DCavg)
Performance Level
Category
SIL2 (Proof Test Interval 1 year)
SIL3 (Proof Test Interval 1 month)
High and low demand mode
1
B
100 h
< 1 × 10 1/h
-8
< 8 × 10
-5
20 years
High
High
d (Proof Test Interval 1 year)
e (Proof Test Interval 1 month)
3 (Proof Test Interval 1 year)
4 (Proof Test Interval 1 month)
SIL2 (Proof Test Interval 1 year)
High and low demand mode
1
B
100 h
< 3 × 10 1/h
-8
< 2 × 10
-4
20 years
High
Medium
d
3
Operating Instructions, 08/2017, A5E39831415-AA
TP1000F Mobile RO