
S-DIAS SAFETY DIGITAL OUTPUT MODULE
STO 081
04.11.2020
Page 11
3.3
Safety-Relevant Parameters
3.3.1
Mounting Position Horizontal 0-55 °C Ambient Temperature
Output Module
Safety Parameters
Safety Levels
STO 081
including CPU
module
SCP 011/SCP 111
PFH
D
= 1.0E-09 (1/h)
MTTF
D
= 2053 years
DC = 99 %
SFF = 99 %
SIL 3
according to EN/IEC 62061
PL e / Cat. 4
according to EN ISO 13849-1/-
2
Structure: Two-channel redundant (diverse)
3.3.2
Mounting Position Horizontal 55-60 °C Ambient Temperature
Output Module
Safety Parameters
Safety Levels
STO 081
including CPU
module
SCP 011/SCP 111
PFH
D
= 1.3E-09 (1/h)
MTTF
D
= 1718 years
DC = 99 %
SFF = 99 %
SIL 3
according to EN/IEC 62061
PL e / Cat. 4
according to EN ISO 13849-1/-
2
Structure: Two-channel redundant (diverse)
3.4
Compatibility
Compatibility
For compatibility of the S-DIAS Safety modules, see section
"Compatibility of S-DIAS Safety Modules" in the system
handbook.