5 Performance Data / Operation
B−24
CP 443-1 for Industrial Ethernet / Manual Part B
Release 07/2010
C79000-G8976-C223−06
Table 5-2 , Fortsetzung
Characteristic Explanation / values
S Number of PG connections
S Number of OP connections
2 max.
30 max.
Repercussions of the number of SEND/RECV
connections in SPEED SEND/RECV mode
Note the following with SPEED SEND/RECEIVE:
Using SSEND/SRECV reduces the possible
configuration limits of S7 communication with each
configured SEND/RECV connection in SPEED
SEND/RECV mode.
5.3 SEND/RECEIVE interface
5.3.1 Characteristic data
The SEND/RECEIVE interface provides access to communication over TCP,
ISO-on-TCP, ISO transport, and UDP connections.
The following characteristics are important:
Table 5-3 Characteristic data of the SEND/RECEIVE interface
Characteristic
Explanation / values
Number of SEND/RECEIVE connections S TCP connections: 1...64
1)
S ISO-on-TCP connections 1 to 64
S ISO transport connections 1...64
S UDP connections (specified and free) configurable in total
1 to 64 (of those, up to 48 multicast mode)
S Max. number of connections in total:
(ISO transport + ISO-on-TCP + TCP + UDP) <= 64
Refer to the example in Section 5.1
1)
Note:
The flow control on TCP connections cannot control
permanent overload of the receiver. You should therefore
make sure that the processing capabilities of a receiving CP
are not permanently exceeded by the sender (approximately
150-200 messages per second).
Number of SEND/RECV connections in
SPEED SEND/RECV mode
The number depends on the CPU type being used.
S Per CPU 412/414 maximum 30
S Per CPU 416/417 maximum 62
Maximum data length for AG_SEND and
AG_RECV functions (FCs)
AG_SEND and AG_RECV were shipped with predecessors of
the CP and allow the transfer of data fields with a length from
1 to 240 bytes. The version of the CP described here
continues to support these blocks.
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