Supplementary information
15.15 Cycle and response times of the CPU 410-5H
CPU 410-5H Process Automation
System Manual, 09/2014, A5E31622160-AB
301
Process image update
The table below shows the time a CPU requires to update the process image (process
image transfer time). The specified times only represent "ideal values", and may be
extended accordingly by any interrupts or communication of the CPU.
Calculation of the transfer time for process image update:
K+ portion in the central controller (from row A in the following table)
+ portion in the expansion device with local connection (from row B)
+ portion in the expansion device with remote connection (from row C)
+ portion via integrated DP interface (from row D1)
+ portion via external DP interface (from row D2)
portion of consistent data via integrated DP interface (from row E1)
+ portion of consistent data via external DP interface (from row E2)
+ portion in PN/IO area for the integrated PROFINET IO interface (from row F)
+ portion for each submodule with 32 byte of consistent data for the integrated PROFINET
IO interface (from row G)
= Transfer time for process image update
The tables below show the various portions of the transfer time for a process image update
(process image transfer time). The specified times only represent "ideal values", and may be
extended accordingly by any interrupts or communication of the CPU.
Table 15- 11 Portion of the process image transfer time, CPU 410-5H
Portions
CPU 410-5H
stand-alone mode
CPU 410-5H
redundant
K
Base load
2 µs
3 µs
A
*)
In the central controller
Read/write byte/word/double word
7.3 µs
15 µs
B
*)
In the expansion unit with local link
Read/write byte/word/double word
20 µs
26 µs
C
*)**)
In the expansion unit with remote link
Read/write byte/word/double word
45 µs
50 µs
D1
In the DP area for the integrated DP interface
Read byte/word/double word
0.4 µs
10 µs
D2
***)
In the DP area for the external DP interfaces
Read/write byte/word/double word
5 µs
15 µs
E1
Consistent data in the process image for the integrated DP
interface
Read/write data
8 µs
30 µs
E2
Consistent data in the process image for the external DP
interface (CP 443–5 extended)
Read
write
80 µs
60 µs
100 µs
70 µs
F
In the PNIO area for the integrated PROFINET IO interface
Read/write for each byte/word/double word
2 µs
15 µs