Unidad De Entrada - Modo 1Oo2; Controlador - Siemens SIMATIC HMI KP8 Instrucciones De Servicio

Datos técnicos
9.4 Funcionamiento de seguridad (failsafe)

Unidad de entrada - modo 1oo2

Parámetro
Hardware Fault Tolerance
Classification
Architecture
Failure mode
•
•
Failure Mode Diagnostic
•
•
Diagnostic Coverage
Diagnostic test interval
Safe Failure Fraction
Common Cause Factor

Controlador

Parámetro
Hardware Fault Tolerance
Classification
Architecture
Failure mode
•
•
Failure Mode Diagnostic
•
•
Diagnostic Coverage
Diagnostic test interval
Safe Failure Fraction
Common Cause Factor
110
Detected
Undetected
Detected
Undetected
detected
undetected
Detected
Undetected
Valor
1
A
1oo2D
Dangerous process value
5.78 FIT
•
0.06 FIT
•
No error signaling or no safe
values
0 FIT
•
0 FIT
•
99.00 %
15 ms
99.86 %
2 %
Valor
1
B
1oo2D
Dangerous process value
174,00 FIT
•
1,68 FIT
•
No error signaling or no safe
values
0 FIT
•
0 FIT
•
99.04 %
15 ms
99.23 %
2 %
Comentario
–
–
1st detected failure leads to the safe
state
Due to failures in the input circuit
One channel
One channel
Calculation according
IEC 13849-1, CAT4
–
Errors detected in each firmware cycle
–
–
Comentario
–
–
1st detected failure leads to the safe
state
Due to failures in the processing unit
One channel
•
One channel
•
Calculation according
IEC 13849-1, CAT4
–
Errors detected in each firmware cycle
–
–
Instrucciones de servicio, 11/2011, A5E03284319-02
KP8, KP8F, KP32F