Siemens SIMATIC S7-1500 Manual page 21

Property
1. PROFINET interface (X1
P1 R, X1 P2 R)
2. PROFINET interface (X2
P1)
PROFINET interface (X3 P1) The interface has one port. In addition to basic PROFINET
Operation of the CPU as
• IO controller
• I-device
PROFIBUS DP
PROFIBUS interface (X4)
Operation of the CPU as a
DP master
Accessories
You can find more information on "Accessories/spare parts" in the S7‑1500, ET 200MP system
manual (https://support.automation.siemens.com/WW/view/en/59191792).
CPU 1518T-4 PN/DP (6ES7518-4TP00-0AB0)
Equipment Manual, 11/2022, A5E50479758-AB
Description
The first PROFINET interface (X1 P1, X1 P2) has two
ports. In addition to PROFINET basic functionality, it also
supports PROFINET IO RT (real-time) and IRT (isochronous
real-time). PROFINET IO communication or real-time set­
tings can be configured.
Even with a send clock of 125 µs, IO communication and
standard communication is possible via one cable.
Port 1 and port 2 can also be used as ring ports for the
configuration of redundant ring structures in Ethernet.
The 2nd PROFINET interface (X2 P1) has one port. In
addition to the basic functionality of PROFINET, it also
supports PROFINET IO RT (Real-time). PROFINET basic
functionality supports HMI communication, communica­
tion with the configuration system, communication with
a higher-level network (backbone, router, Internet) and
communication with another machine or automation
cell.
functionality, it also supports PROFINET IO RT (real time).
• IO controller:
As an IO controller, the CPU addresses the connected
IO devices
• I-device:
As an I-device (intelligent IO device), the CPU is
assigned to a higher-level IO controller and is used in
the process as an intelligent pre-processing unit of
sub-processes
The interface is used for connecting to a PROFIBUS net­
work.
In the role as a DP master, the CPU addresses the connec­
ted DP slaves. It is not possible for the CPU to take the
role of a DP slave.
Product overview
3.3 Hardware properties
Additional information
PROFINET function manual
(https://support.industry.siemens.
com/cs/ww/en/view/49948856)
PROFIBUS (https://www.profibus.com)
function manual
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