Siemens CP 343-1 Lean User Manual

Performance data
2.5 PROFINET IO characteristic data
CP 343-1 Lean
18 Manual, 10/2012, C79000−G8976−C198−07
2.5 PROFINET IO characteristic data
Configuration limits of the CP as an IO device and I-device
The CP supports the following maximum configuration if it is configured as a PROFINET IO
device and as an I-device:
Table 2- 4 Configuration limits of the CP as a PROFINET IO device
Characteristic Value
Maximum 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
controllers
Size of the input area of the PROFINET IO device 512 bytes max. *
Size of the output area of the PROFINET IO
device
512 bytes max. *
Size of the IO data area per sub module on the
PROFINET IO device
 Inputs: 240 bytes
 Outputs: 240 bytes
Size of the consistency area for a submodule 240 bytes
Maximum number of submodules 32
Size of the transfer area 240 bytes
Number of transfer areas 32
* For the size of the user data, refer to the following section.
Size of the user data
The size of the user data is calculated from the maximum frame size (gross 548 bytes)
minus the following values: 1 for the CP itself, 1 per Interface, 1 per port, 1 for each plugged-
in module in HW Config or per slot used.
Table 2- 5 Example of calculating the user data of the CP 343-1 as an IO device
Bytes Explanation
548 Gross size of the frame
-1 for the CP itself
-1 for the Interface
-2 for 2 ports
-32 for the maximum number of pluggable modules
= 512 Net size of the user data *
* By using fewer but larger modules, the amount of user data can be increased.

Siemens CP 343-1 Lean Specifications

General

Brand	Siemens
Model	CP 343-1 Lean
Category	Switch
Language	English