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Property
PROFINET IO
PROFINET IO interface
(X1 P1 R and X1 P2 R)
PROFINET interface
(X2 P1)
Operation of the CPUs as
IO controllers
CPU 1515R-2 PN (6ES7515-2RM00-0AB0)
Equipment Manual, 11/2019, A5E42009914-AB
Description
The CPU has an X1 interface with two ports (X1 P1 R
and X1 P2 R).
The PROFINET IO interface X1 (default P1 R) is
•
used to set up the PROFINET ring with the two
CPUs and the IO devices.
The PROFINET IO interface X1 (default P2 R) is
•
used to make the connection between the two R-
CPUs in the PROFINET ring.
In the PROFINET ring, the synchronization frames
between the CPUs are transmitted via the following
connections:
–
The direct connection (X1 P2 R)
–
The indirect connection (X1 P1 R) via the IO de-
vices
The interface supports PROFINET IO RT (Real-
•
Time) and PROFINET basic functionality.
Basic PROFINET functionality comprises:
–
HMI communication
–
Communication with the configuration system
–
Communication with a higher-level network
(backbone, router, Internet)
–
Communication with another machine or auto-
mation cell
The CPU has an X2 interface with one port (X2 P1).
The interface supports PROFINET basic functionality.
IO controller:
As IO controllers the CPUs address the following con-
figured IO devices:
IO devices with S2 system redundancy within the
•
PROFINET ring
IO devices with S2 system redundancy that are
•
decoupled from the PROFINET ring via a switch
Standard IO devices (switched S1 devices)
•
Standard IO devices usually do not support H-
Sync Forwarding.
To avoid a cycle time increase when the
PROFINET ring is interrupted, integrate the stand-
ard IO devices behind a switch and not in the
PROFINET ring.
Product overview
2.3 Hardware properties
Additional information
Redundant System S7-1500R/H
•
(https://support.industry.siemens.
com/cs/ww/en/view/109754833)
System Manual
Function manual PROFINET
•
(https://support.industry.siemens.
com/cs/ww/en/view/49948856)
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