Supplementary information
16.6 Communication services
CPU 410-5H Process Automation/CPU 410 SMART
224 System Manual, 10/2013, A5E32631667-AA
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.
OP communication
Properties
OP communication is used to exchange data between HMI stations, such as WinCC, OP, TP
and SIMATIC modules which are capable of communication. This service is available via
PROFIBUS and Industrial Ethernet subnets.
You can use the OP communication for operator control, monitoring and alarms. These
functions are integrated in the operating system of SIMATIC S7 modules. A CPU can
maintain several simultaneous connections to one or several OPs.
S7 communication
Properties
A CPU can always act as a server or client in S7 Communication. A connection is configured
permanently. The following connections are possible:
● One-sided configured connections (for PUT/GET only)
● Two-side configured connections (for USEND, URCV, BSEND, BRCV, PUT, GET)
You can use the S7 communication via integrated PROFIBUS DP or PROFINET IO
interfaces. If required, S7 communication can be used via additional communication
processors: CP 443-1 for Industrial Ethernet or CP 443-5 for PROFIBUS.
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