S7-400 Cycle And Response Times - Siemens SIMATIC S7-400H System Manual

S7-400 cycle and response times

This section describes the decisive factors in the cycle and response times of your of S7-400
station.
You can read out the cycle time of the user program from the relevant CPU using the
programming device (refer to the manual
STEP 7
The examples included show you how to calculate the cycle time.
An important aspect of a process is its response time. How to calculate this factor is
described in detail in this section. When operating a CPU 41x-H as master on the
PROFIBUS DP network, you also need to include the additional DP cycle times in your
calculation (see section Response time (Page 369)).
Additional information
For more detailed information on the following execution times, refer to the S7–400H
instruction list. This lists all the
CPUs along with their execution times and all the SFCs/SFBs integrated in the CPUs and
the IEC functions that can be called in
S7-400H
System Manual, 03/2012, A5E00267695-11
).
Configuring Hardware and Connections with
STEP 7
instructions that can be executed by the particular
STEP 7
with their execution times.
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