Communication - Siemens SIMATIC HMI OP3 Equipment Manual

Operator panel
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Communication

Types of
The OP3 can be connected to SIMATIC S7 automation systems (PLCs) via
connection
two different network configurations. The network configuration depends on
the CPU being used. The following two types of connection are possible:
The two different interfaces affect the configuration and the mode of
addressing employed.
User
The OP3 and the SIMATIC S7 communicate via user data areas in the
data areas
automation system. The user data areas you have to create on the S7 depend
on the configuration. You must create suitable user data areas, depending on
the objects contained in the configuration and the data to be exchanged.
For some user data areas, you must create an interface area to handle
synchronization of the OP3 and the S7, if the functions contained therein are
required to be used by the S7. Some user data areas are even located in this
interface area.
For the OP3, the following user data areas are possible:
Note
The following is true of the user data areas:
Operator Panel OP3
Edition 11/99
SIMATIC S7-200
SIMATIC S7-300
Event message area (refer to section 7.1),
Interface area for the connection ID (refer to section 12.3.2), date and
time (refer to section 12.3.3),
Screen number area (refer to section 11.3) and
System keyboard assignment (refer to section 11.4).
The system keyboard assignment and the screen number area may be
created only once.
The interface area can be created only once for each CPU.
The event message area can be created multiple times on different CPUs.
Point-to-Point Interface (PPI)
Multi-Point Interface (MPI)
(without CPU318)
12
12-1

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