Siemens SIMATIC NET CP 443-1 Advanced User Manual

Performance data
2.6 Characteristic data for PROFINET CBA
CP 443-1 Advanced (GX30)
Manual, 03/2019, C79000-G8976-C256-05
33
Comparing CPU and CP 4431 Advanced
In the documentation of the CPU 3172 PN/DP, for example, you can see the influence as
shown in the following graphic. Measurement series 1 and 2 show this influence when the
CPU interface is used for PROFINET CBA.
In an additional measurement series, the graphic shows the influence when you use the
PROFINET CBA interface of a CP 443-1 Advanced (here: 6GK7 443-1EX40) in an S7-400
station.
It can be seen that in contrast to operation over a CPU network attachment, the OB1 cycle
remains practically uninfluenced by the CBA communication if PROFINET CBA is operated
over a CP 4431 Advanced.
Legend:
1) OB1 cycle with 32 PROFINET CBA partners and network attachment on the CPU 317−2
PN/DP.
2) OB1 cycle with 5 PROFINET CBA partners and network attachment on the CPU 317−2
PN/DP.
3) OB1 cycle with an S7400 station with CPU 416−2 and with network attachment on the CP
443−1 Advanced (the number of PROFINET CBA partners has no influence).
Figure 2-1 Cycle times with PROFINET CBA interconnections
2.6.3
Reaction times
Definition
The reaction time is the time from recognizing an input signal until the associated output
signal changes.

Siemens SIMATIC NET CP 443-1 Advanced Specifications

General

Brand	Siemens
Model	SIMATIC NET CP 443-1 Advanced
Category	Computer Hardware
Language	English