Application and functions
1.4 Performance data
CP 443-5 Extended
20 Equipment Manual, 01/2023, C79000-G8976-C162-10
Cycle load time due to FDL connections
The calculation of the cycle load time for FDL connections is largely dependent on the time
required to execute the program blocks (AG_SEND, AG_RECV) on the S7400 CPU.
The following table lists the cycle load times of the available FCs in milliseconds. A distinction
is made between the statuses "job completed" and "job active". The entries relate to the run
time in the CPU 417 (6ES7 417-4XL04-0AB0 - see Table 1-1 Use with the current CPU types
(Page 13)).
Table 1- 6 Cycle load time
1.4.4 Characteristics of S7 communication
General characteristic data
The following information is important when operating S7 connections:
Table 1- 7 General characteristics of S7 connections
Number of S7 connections that can
be operated via PROFIBUS
48 max.
(The value depends on the S7400 CPU being used.)
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