Connection Diagrams; Specifications Ep-1902 - GE RSTi-EP Functional Safety Manual

5.4.2 Connection Diagrams

5.4.3 Specifications EP-1902

System data
Data
Interface
System bus transfer rate
Safety-related data per EN ISO 13849 (Regard the entire safety chain)
Achievable safety level
DC (Diagnostic Coverage)
MTTFd (Mean Time To Failure dangerous)
Safety-related data per EN 62061 (Regard the entire safety chain)
Achievable safety level
PFH (Probability of Failure in 1/h)
Fault reaction time
Safety-related data per EN 61508 (Regard the entire safety chain)
Achievable safety level
PFH (Probability of Failure in 1/h)
HFT (Hardware Fault Tolerance)
SSF (Safe Failure Fraction)
Presumed lifecycle time
Prooftest interval
Classification acc. To EN 61508-2:2010
GFK-2956A
Chapter 7. Detailed Descriptions of EP-19xx Modules
EP-1902
Block Diagram EP-1902
Technical Data
Process and diagnostic data depend on the network adapter used
(refer to the table in the section, Data Width of EP-19xx Modules)
RSTi-EP I/O communication bus
48 Mbps
PLe and Category 4
99%
> 100 years
SILCL3
6.27 x 10 -9
10 s
SIL3
6.27 x 10
-9
1
98.58%
20 years
No prooftest needed within the lifecycle
Type B
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