Supplementary information
15.6 Communication services
CPU 410-5H Process Automation
System Manual, 09/2014, A5E31622160-AB
243
Availability of connection resources
Table 15- 5 Availability of connection resources
Total number of
connection resources
Can be used for
S7-H connections
Reserved from the total number for
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
PG communication
Properties
Programming device communication is used to exchange data between engineering stations
(PG, PC, for example) and SIMATIC modules which are capable of communication. This
service is available via PROFIBUS and Industrial Ethernet subnets. Routing between
subnets is also supported.
You can use the programming device communication for the following actions:
● Loading programs and configuration data
● Performing tests
● Evaluating diagnostic information
These functions are integrated in the operating system of SIMATIC S7 modules.
A CPU can maintain several simultaneous online connections to one or multiple
programming devices.
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