5 Performance Data
B4A−28
CP 443-1 Advanced for Industrial Ethernet / Manual Part B4A
Release 01/2007
C79000-G8976-C193-06
5.5 Characteristic Data for PROFINET IO
The CP supports the following maximum configuration as a PROFINET IO
controller:
Table 5-5
Characteristic
Explanation / Values
Number of possible PROFINET IO devices 125
Size the input area over all PROFINET IO devices 4 Kbytes max.
Size the output area over all PROFINET IO devices 4 Kbytes max.
Size of the IO data area per submodule of a module in an IO device
S Inputs
S Outputs
128 bytes
128 bytes
Size of the consistency area for a submodule 128 bytes
Data record length 240 bytes max.
Supported data record numbers 0 to 255
Note
Note the following for PROFINET IO: If you use modules with >=32 bytes of
input/output data, this can lead to I/O access errors; access errors are entered in
the diagnostic buffer of the CPU.
These I/O errors occur during operation only in the ”consistent user data” mode
and at a low OB1 cycle time.
Notice
In PROFINET IO, the number of possible slots is limited.
As of STEP 7 V5.3.2, the slot boundary is checked!
The maximum number of slots depends on the CPU being used:
CPU417*: 2173 slots
CPU416*: 2173 slots
CPU414*: 1632 slots
CPU412*: 1088 slots