Performance data
2.4 Characteristics of open TCP/IP communication
CP 443-1 Advanced (GX30)
28 Manual, 03/2019, C79000-G8976-C256-05
Table 2- 2 Dependency of the maximum number of RECEIVE calls long (AG_LRECV FC60) used at the same time on
the number of SEND calls (CPU 416/417)
Number of simultaneous
SEND calls
Max. number of simulta-
neous FC60s per
51 50 49 48 47 46 45 44 43 42 41 40 39 38
Number of simultaneous
SEND calls
Max. number of simulta-
neous FC60s per
37 36 35 34 33 32 31 30 29 28 27 26 25
The maximum number of SPEED SEND/RECEIVE calls that can be used simultaneously
(FC53, FC63) depends only on the CPU (see above).
Characteristics of open TCP/IP communication
Open TCP/IP communication provides a program interface for the transfer of connection-
oriented and connectionless services. The establishment and termination of connections is
initiated here only via the "dynamic" program interface.
The CP supports communication via ISO-on-TCP connections for this interface.
Table 2- 3 Open TCP/IP communication
Number of dynamically generated connections over Indus-
• ISO-on-TCP connections: 1...64
Characteristic data for PROFINET IO
PROFINET IO communication of the CP is IRTcompliant. The CP supports the following
maximum configuration as a PROFINET IO controller:
Number of CPs that can be operated as PROFINET IO
controllers within an S7400 station
4
Number of possible PROFINET IO devices
*)
128
*)
, of which
• up to 64 in IRT mode
• up to 32 in "prioritized startup" mode
Size the input area over all PROFINET IO devices
Size of the output area over all PROFINET IO devices