Siemens CPU 1518-4 PN/DP ODK - Page 30

Connecting up
CPU 1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
30 Manual, 09/2016, A5E35681108-AA
Note
PROFINET interface X3 with a transmission rate of 1000 Mbps
The PROFINET interface X3 supports a maximum transmission rat
e of 1000 Mbps.
Requirements:
•
Devices on the PROFINET segment must support the 1000 Mbps transmission rate.
•
The network infrastructure (network cables and outlets) must be category CAT 5e or
higher.
•
The "Transmission rate" parameter in the properties of the port (X3) must be set as
follows in STEP 7:
– The "Autonegotiation" check box is selected
–
"Automatic" is selected in the drop-down list
PROFIBUS interface X4
The table below shows the terminal assignment of the PROFIBUS interface. The assignment
corresponds to the standard assignment of an RS485 interface.
Table 3- 1 PROFIBUS interface terminal assignment
View
Signal name
Designation
1
-
-
2 - -
3
RxD/TxD-P
Data line B
4
RTS
Request To Send
5
M5V2
Data reference potential (from station)
6
P5V2
Supply plus (from station)
7
-
-
8
RxD/TxD-N
Data line A
9
-
-
Note
Supply of I/O devices
The CPU
1518-4 PN/DP ODK does not provide a 24 V DC power supply on the PROFIBUS
interface. I/O devices (for example, PC adapter USB 6ES7972
-0CB20-0XA0) are only
operational on the interface in conjunction with a plug
-in power supply set for external power
supply.
The innovative successor product, PC adapter USB A2, receives the required power supply
via the USB port. This means it does not need a 24 V
DC supply voltage and can be
operated without
a plug-in power supply set for external power supply.