Siemens Simatic ET200pro Operating Instruction page 19

Properties
The CPU 1516pro-2 PN has the following technical properties:
● Communication:
– Interfaces
● OPC UA
With OPC UA, data is exchanged via an open and vendor-neutral communications
interface. The CPU, as OPC UA server, can communicate with OPC UA clients such as
HMI panels, SCADA systems, etc.
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 09/2016, A5E35873416-AA
The CPU 1516pro-2 PN has two PROFINET interfaces (X1 and X2).
The 1st PROFINET interface (X1) has three ports (P1R, P2R and P3). In addition to
PROFINET basic functionality, it also supports PROFINET IO RT (real-time) and IRT
(isochronous real-time). P1R and P2R are M12 circular sockets (with female contact
insert). They can also be used as ring ports for the configuration of redundant ring
structures in Ethernet (media redundancy). P3 is an RJ45 socket and is suitable, for
example, for connection of a PC, programming device or HMI device.
The 2nd PROFINET interface (X2) has one port (P1). P1 is an M12 circular socket
(with female contact insert). In addition to basic PROFINET functionality, P1 also
supports PROFINET IO RT (Real-time). IRT (Isochronous real-time) is not supported
by this interface.
Note
Special consideration when PROFINET IO communication is configured on the
2nd PROFINET interface (X2)
If you configure PROFINET IO communication on the 2nd PROFINET interface (X2)
(operated as IO controller or IO device), additional system load occurs. You can find
additional information in the Cycle and Response Times
(https://support.industry.siemens.com/cs/de/de/view/59193558/en) Function Manual.
Note
IP subnets
The IP subnets of both interfaces must be different. This means that the subnets of
the IP address of the two interfaces must differ from each other.
Product overview
2.3 Properties
19