Siemens SIMATIC NET CP 343-1 User Manual
english
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Product information CP 343–1
C79000–Z8964–C038–05
C79000–Z8964–C038–05
1.2
Performance Data
1.2.1
Characteristics of S7 Communication
The functions and characteristics of S7 communication are described in /8/
and /11/.
and /11/.
1.2.2
Characteristics of ISO Transport Connections
The following information is important for operating ISO transport connections
(SEND/RECEIVE interface):
(SEND/RECEIVE interface):
Table 4
Characteristic
Explanation / Values
Total number of connections on Industrial
Ethernet
Ethernet
32 maximum
Number of connections for S7 communication
on Industrial Ethernet
on Industrial Ethernet
The actual value depends on the CPU type
being used. Please refer to /1/ for the values
for your CPU.
being used. Please refer to /1/ for the values
for your CPU.
Number of ISO transport connections
16 maximum
Maximum data length for AG_SEND and
AG_RECV blocks
AG_RECV blocks
AG_SEND and AG_RECV allow the transfer
of data fields of between 1 and 240 bytes.
of data fields of between 1 and 240 bytes.
Maximum data length for AG_LSEND and
AG_LRECV blocks
AG_LRECV blocks
AG_LSEND and AG_LRECV are shipped for
the CP 343–1 from version 5 or higher
(firmware V3.00) and permit the transfer of
data fields of between 1 and 8192 bytes (for
more detailed information, see Table 3 ).
the CP 343–1 from version 5 or higher
(firmware V3.00) and permit the transfer of
data fields of between 1 and 8192 bytes (for
more detailed information, see Table 3 ).
Reaction Times of ISO Transport Connections
The calculation of the reaction times with ISO transport connections is deter-
mined by the run time of the function blocks required on the S7-300 CPU
(AG-SEND, AG–RECV).
mined by the run time of the function blocks required on the S7-300 CPU
(AG-SEND, AG–RECV).