Siemens S7-300 - Operation Using a Configured or Programmed Database; PG;OP Communication Via Industrial Ethernet

Communication via Ethernet CPs in S7 stations
1.4 PG/OP communication via Industrial Ethernet
Configuring and commissioning S7 CPs for Industrial Ethernet
Configuration Manual, 09/2013, C79000-G8976-C182-13
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1.3.3
Operation using a configured or programmed database
Configuration and diagnostics
The STEP 7 configuration software is required to connect and configure the Ethernet CP.
With its special diagnostics and Web diagnostics, STEP 7 provides a wide range of
diagnostics options for the various types of communication via Industrial Ethernet.
To configure the security functionality, use the Security Configuration Tool SCT integrated in
STEP 7.
To configure PROFINET CBA communication, you also require the SIMATIC iMap
engineering tool.
Programmed communication connections
In some situations, it is an advantage to set up communication connections not using the
configuration data but programcontrolled by specific applications.
Program block IP_CONFIG is available for these applications and allows flexible transfer of
data blocks with configuration data to an Ethernet CP. For information on the interfaces of
the CP for which this is possible, refer to the manual of the relevant device.
1.4
PG/OP communication via Industrial Ethernet
Application
PG/OP communication provides functions that are already integrated in every SIMATIC
S7/M7/C7 device.
PG/OP communication distinguishes between the two function types:
● PG communication
PG communication with STEP 7 on Industrial Ethernet allows the complete range of
functions of STEP 7 on Industrial Ethernet. All modules in the SIMATIC S7 PLC are
available for:
– programming
– diagnostics
– operator control and monitoring
● OP mode
PG/OP communication on Industrial Ethernet allows the operator control and monitoring
of all modules in a SIMATIC S7 PLC using HMI and monitoring devices (TD/OP).
The Ethernet CP acts as a "communications relay" that relays the PG/OP communication via
Industrial Ethernet.
The following schematic illustrates how PG/OP communication can be used locally or
remotely: