9pin SubD jack:
n
The MPI interface serves for the connection between programming unit and CPU.
n
By means of this the project engineering and programming happens.
n
MPI serves for communication between several CPUs or between HMIs and CPU.
n
Standard setting is MPI Address 2.
8pin RJ45 jack:
n
The RJ45 jack serves the interface to the Ethernet PG/OP channel.
n
This interface allows you to program res. remote control your CPU, to access the
internal web site or to connect a visualization.
n
Configurable connections are not possible.
n
For online access to the CPU via Ethernet PG/OP channel valid IP address parame-
ters have to be assigned to this.
9pin SubD jack:
The CPU has a PROFIBUS/PtP interface with a fix pinout. After an overall reset the inter-
face is deactivated. By appropriate configuration, the following functions for this interface
may be enabled:
n
PROFIBUS DP master operation
–
Configuration via PROFIBUS sub module X1 (MPI/DP) with
‘Operation mode’
master in the hardware configuration.
n
PROFIBUS DP slave operation
–
Configuration via PROFIBUS sub module X1 (MPI/DP) with
‘Operation mode’
slave in the hardware configuration.
n
PtP functionality
–
Using the PtP functionality the RS485 interface is allowed to connect via serial
point-to-point connection to different source res. target systems.
–
Here the following protocols are supported: ASCII, STX/ETX, 3964R, USS and
Modbus-Master (ASCII, RTU).
–
The activation of the PtP functionality happens by embedding the
SPEEDBUS.GSD from VIPA in the hardware catalog. After the installation the
CPU may be configured in a PROFIBUS master system and here the interface
may be switched to PtP communication.
8pin RJ45 jack:
n
PROFINET IO controller to connect PROFINET IO devices
n
Ethernet PG/OP channel
n
Ethernet Siemens S7 connection
n
Ethernet open communication
4.2.3 Memory management
The CPU has an integrated memory. Information about the capacity of the memory may
be found at the front of the CPU. The memory is divided into the following parts:
n
Load memory 4Mbyte
n
Code memory (50% of the work memory)
n
Data memory (50% of the work memory)
n
Work memory 1Mbyte
–
There is the possibility to extend the work memory to its maximum printed
capacity 4Mbyte by means of a memory extension card.
X2: MPI interface
X5: Ethernet PG/OP
channel
X3: PROFIBUS/PtP inter-
face with configurable
functionality
X8: PROFINET IO con-
troller
Memory
System 300S
+
Hardware description
Structure > Memory management
HB140 | CPU | 315-4PN23 | en | 18-02
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