The embedding of the CPU 315-4PN23 happens by means of a virtual PROFIBUS
master system with the following approach:
1.
Perform a hardware configuration for the CPU
Chap. 5.4 ‘Hardware configuration
2.
Configure always as last module a Siemens DP master CP 342-5 (342-5DA02
V5.0). Connect and parameterize it at operation mode "DP-Master".
3.
Connect the slave system "VIPA_SPEEDbus". After installing the SPEEDBUS.GSD
this may be found in the hardware catalog at PROFIBUS DP / Additional field
devices / I/O / VIPA / VIPA_SPEEDBUS.
4.
For the slave system set the PROFIBUS address 100.
5.
Configure at slot 0 the VIPA CPU 315-4PN23 of the hardware catalog from
VIPA_SPEEDbus.
6.
By double clicking the placed CPU 315-4PN23 the properties dialog of the CPU
may be opened.
As soon as the project is transferred together with the PLC user program to the CPU, the
parameters will be taken after start-up.
The hardware configuration, which is shown here, is only required, if you
want to customize the VIPA specific parameters.
1.
By double clicking the CPU 315-4PN23 placed in the slave system the properties
dialog of the CPU may be opened.
2.
Switch the Parameter
‘Function RS485 X3’
to
‘PtP’
.
n
Logical states represented by voltage differences between the two cores of a twisted
pair cable
n
Serial bus connection in two-wire technology using half duplex mode
n
Data communications up to a max. distance of 500m
n
Data communication rate up to 115.2kbaud
9pin SubD jack
Pin
RS485
1
n.c.
2
M24V
3
RxD/TxD-P (Line B)
4
RTS
5
M5V
6
P5V
7
P24V
8
RxD/TxD-N (Line A)
9
n.c.
Proceeding
Setting PtP parameters
Properties RS485
RS485
System 300S
+
Deployment PtP communication
Deployment of RS485 interface for PtP
HB140 | CPU | 315-4PN23 | en | 18-02
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