12-3
Operator Panel OP3
Edition 11/99
Interface If data user areas are used that are
area located in the interface area, you must create an
interface area. You must configure a separate interface
area for each S7 connected.
With ProTool, all settings with the exception of the interface area must be
performed by choosing PLC. You configure the interface areas by choosing
System → Area Pointer from the menu.
12.2 Connecting to an S7-300 via the MPI
When connecting an OP3 to an S7-300, the OP3 is connected to the MPI
interface of the S7. You can connect up to two S7s to an OP3. Up to three
OP3s can communicate with an S7 simultaneously. The CPU determines the
maximum number of connections. A maximum of 32 nodes can
communicate in an MPI network configuration.
Figure 12-2 shows a possible network configuration. Numbers 1, 2, etc.
are address examples. The address mode of the S7 is configured by means of
S7 Configuration.
CPU
OP3
1
MPI
S7-300
CP FM
CPU
S7-300
FMCP
OP3
4
PU
0
2 3
Figure 12-2 Connecting an OP3 to a SIMATIC S7-300
Settings
in ProTool
Connection
Network
configuration
Communication
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