Siemens SIMATIC S7-400H - Page 360

S7-400 cycle and response times
19.2 Calculating the cycle time
S7-400H
360 System Manual, 03/2012, A5E00267695-11
Portion CPU 412–5H
stand-alone mode
CPU 412–5H
redundant
F In the PNIO area for the integrated PROFINET interface
Read/write for each byte/word/double word
4 µs 40 µs
G Per submodule with 32 bytes of consistent data for the
integrated PROFINET interface
28 µs 70 µs
*)
In the case of I/O inserted into the central controller or expansion device,
the specified value contains the execution time of 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.
Table 19- 4 Portion of the process image transfer time, CPU 414-5H
Portion CPU 414–5H
stand-alone mode
CPU 414–5H
redundant
K Base load 8 µs 9 µs
A
*)
In the central controller
Read/write byte/word/double word 8.5 µs 25 µs
B
*)
In the expansion unit with local link
Read/write byte/word/double word 23 µs 40 µs
C
*)**)
In the expansion unit with remote link
Read/write byte/word/double word 47 µs 64 µs
D1 In the DP area for the integrated DP interface
Read byte/word/double word 0.5 µs 21.5 µs
D2
***)
In the DP area for the external DP interfaces
Read/write byte/word/double word 5.2 µs 24.6 µs
E1 Consistent data in the process image for the integrated DP
interface
Read/write data 15 µs 45 µs
E2 Consistent data in the process image for the external DP
interface (CP 443–5 extended)
Read
write
130 µs
65 µs
170 µs
100 µs
F In the PNIO area for the integrated PROFINET interface
Read/write for each byte/word/double word
3 µs 25 µs
G Per submodule with 32 bytes of consistent data for the
integrated PROFINET interface
15 µs 45 µs
*)
In the case of I/O inserted into the central controller or expansion device,
the specified value contains the execution time of 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.