Siemens SIMATIC PCS 7 - Page 309

Supplementary information
18.7 Communication services
CPU 410 Process Automation/CPU 410 SMART
System Manual, 05/2017, A5E31622160-AC
309
Communication service
Functionality
Allocation of S7 connection
resources
Via DP
Via
PN/IE
PROFINET IO Data exchange between I/O controllers
and I/O devices
No No Yes
SNMP
(Simple Network Manage-
ment Protocol)
Standard protocol for network diagnos-
tics and parameter assignment
No No Yes
Open communication over
TCP/IP
Data exchange over Industrial Ethernet
with TCP/IP protocol (with loadable
FBs)
Yes No Yes
Open communication over
ISO on TCP
Data exchange over Industrial Ethernet
with ISO on TCP protocol (with
loadable FBs)
Yes No Yes
Open communication over
UDP
Data exchange over Industrial Ethernet
with UDP protocol (with loadable FBs)
Yes No Yes
Data record routing For example, parameter assignment
and diagnostics of field devices on
PROFIBUS DP with PDM.
Yes Yes Yes
Note
Communication via an PNIO interface
If you want to use an PNIO interface of the module for communication in system operation,
you must also network this in Step 7 / HW Config / NetPro.
Availability of connection resources
Table 18- 5 Availability of connection resources
CPU
Total number of
connection resources
Can be used for
S7-H connections
Reserved from the total number for
PG communication
OP communication
CPU 410-5H
120
62
1
1
Free S7 connections can be used for any of the above communication services.
Note
Communication service via the PROFIBUS DP interface
A fixed default timeout of 40
s is specified for communication services using S7 connection
resources. If you operate those communication services via a PROFIBUS DP interface at a
low baud rate, operation in configurations with a Ttr (Target Rotation Time) < 20
s is
ensured.