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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 16- 11 Portion of the process image transfer time, CPU 410-5H
Portions
K
Base load
A
In the central controller
*)
Read/write byte/word/double word
B
In the expansion unit with local link
*)
Read/write byte/word/double word
C
In the expansion unit with remote link
*)**)
Read/write byte/word/double word
D1
In the DP area for the integrated DP interface
Read byte/word/double word
D2
In the DP area for the external DP interfaces
***)
Read/write byte/word/double word
E1
Consistent data in the process image for the integrated DP
interface
Read/write data
E2
Consistent data in the process image for the external DP
interface (CP 443–5 extended)
Read
write
F
In the PNIO area for the integrated PROFINET IO interface
Read/write for each byte/word/double word
G
Per submodule with 32 bytes of consistent data for the
integrated PROFINET IO interface
In the case of I/O inserted into the central controller or expansion device,
*)
the specified value includes the execution time for the I/O module
The module data is updated with the minimum number of accesses.
(example: 8 bytes result in 2 double word accesses; 16 bytes in 4 double word accesses.)
Measured with IM460-3 and IM461-3 at a link length of 100 m
**)
Measured with modules with 1 byte of user data, e.g., DI 16.
***)
CPU 410-5H Process Automation/CPU 410 SMART
System Manual, 10/2013, A5E32631667-AA
16.15 Cycle and response times of the CPU 410-5H
CPU 410-5H
stand-alone mode
2 µs
7.3 µs
20 µs
45 µs
0.4 µs
5 µs
8 µs
80 µs
60 µs
2 µs
8 µs
Supplementary information
CPU 410-5H
redundant
3 µs
15 µs
26 µs
50 µs
10 µs
15 µs
30 µs
100 µs
70 µs
15 µs
30 µs
275
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