Use the following equation to calculate the total safety response time for your C Series Functional Safety system. Optionally,
you can use the times in the
C Series Functional Safety Response Time Specifications section.
Total safety response time = Sensor response time + Input signal response time + Application processing time + Output signal response time + Actuator response time
Calculate the sensor response time. Refer to the
Sensor Response Time section.
Calculate the input response time. Refer to the
Input Signal Response Time section.
Calculate the diagnostic response time, if applicable. Refer to the
Diagnostic Response Time Specifications section.
Determine the application processing time. This is a guaranteed minimum of 60 µs for each state in the defined execution path
of the User Program. Refer to the
Application Processing Time section.
Add the output signal response time from the
Response Time Specifications section.
Calculate the actuator response time. Refer to the
Actuator Response Time section.