Performance data
2.5 PROFINET IO characteristic data
CP 343-1
Manual, 12/2018, C79000−G8976−C201-08
21
• Inputs
• Outputs
240 bytes
240 bytes
Size of the consistency area for a submodule
Permitted number of CP 343-1 modules that can be used as
PROFINET IO controllers within an S7-300 station
1
Note: Regardless of the CP type (EX30, GX30, GX31 ...),
only 1 CP may be a PROFINET IO controller.
*) If data is kept on the CPU, the number of operable PROFINET IO devices may be < 32. This depends on the free conf
ig-
uration memory of the CPU type being used.
**) The number of PROFINET IO devices that can be operated may reduce if the devices used re
quire extensive configura-
tion data due to numerous submodules. In this case, the memory of the CP is not adequate and you will receive a mes-
sage about lack of resources in the diagnostics buffer of the CP when downloading the configuration data.
iagnostics addresses of the PROFINET IO devices cannot be used as an input on the IO controller. The data area
of the inputs is reduced by the diagnostics addresses used
Configuration limits of the CP as a PROFINET IO device
The CP supports the following maximum configuration as a PROFINET IO device:
Table 2- 6 Configuration limits of the CP as a PROFINET IO device
Number of PROFINET IO connections
• As PROFINET IO device:
1 PROFINET connection to a PROFINET IO
controller
or
• As shared device:
2 PROFINET connections to 2 PROFINET IO
Size of the output area of the PROFINET IO
512 bytes max.
Size of the IO data area per sub module on the
PROFINET IO device
• Inputs
• Outputs
• 240 bytes
• 240 bytes
Size of the consistency area for a submodule
Maximum number of submodules
* For the size of the user data, refer to the following section.
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