YASKAWA iC9200 Series, Руководство по эксплуатации, Страница: 133 / 220

HB700 | CPU | PMC921xEx | en | 24-04 133
iC9200 Series
Deployment CPU iC921xM-FSoE
Response times > Variable runtimes for single errors
Times to be considered
Max. response time for any
run time at one error
5.12.3 Variable runtimes for single errors
At variable run times of the standard system in addition to an existing error, it is assumed
that the values of all the relevant run times are nearby the limit of the monitored times.
■
The max. processing time to and in the safety SDI:
(TI
ST
+ TI
DIS
+ TI
WCDT
+ TI
FSoEWD
)
■
The smallest of the possible monitoring times, from this moment the defined behaviour
of an error takes effect:
(MIN (TI
FSoEWD
, T
CL_MAX
, TO
FSoEWD
))
■
The max. processing time to and in the safety SDO:
(TO
WCDT
+ TO
FSoEWD
)
■
The possibly increased processing times in case of an error within the safety modules,
here only the larger of them, because it is assumed that there is a single error:
(MAX ((TI
OFDT
- TI
WCDT
), (TO
OFDT
- TO
WCDT
)))
■
For the entire process chain a good FSoE telegram could be sent just before to the
safety SDI or SDO. Here the largest of the two timeouts must be considered:
(MAX (TI
FSoEWD
, TO
FSoEWD
))
T
maxRT
= TI
ST
+ TI
DIS
+ TI
WCDT
+ TI
FSoEWD
+ MIN (TI
FSoEWD
, T
CL_MAX
, TO
FSoEWD
)
+ TO
WCDT
+ TO
FSoEWD
+ MAX ((TI
OFDT
- TI
WCDT
), (TO
OFDT
- TO
WCDT
))
+ MAX (TI
FSoEWD
, TO
FSoEWD
)
⮫
‘Designations’...page 135
T
maxRT
Max. response time on error with max. runtime (max RunTime).
TI
ST
Input smoothing time of the inputs of the safety SDI (Smoothing Time).
TI
DIS
With 2-channel evaluation discrepancy time, otherwise 0 (DIScrepancy).
TI/TO
WCDT
Max. response time without errors (Worst Case Delay Time).
TI/TO
FSoEWD
Configured FSoE watchdog time (FSoE WatchDog).
T
CL_MAX
Cycle monitoring time of the safety CPU.
TI/TO
OFDT
Max. response time on error (One Fault Delay Time).
For plant design sensor and actuator run times are to be taken into account:
T
maxRTSA
= T
SensorDLY
+ T
maxRT
+ T
ActuatorDLY
⮫
‘Designations’...page 135
T
maxRTSA
Max. response time on error with max. runtime with sensor and actuator
(max RunTime Sensor Actuator).
T
SensorDLY
Delay time of the sensor (Sensor DeLaY).
T
maxRT
Max. response time on error with max. runtime (max RunTime).
T
ActuatorDLY
Delay time of the actuator (Actuator DeLaY).