Siemens SIMATIC S7-1500 Manual page 27

Product overview
2.3 Hardware properties
Properties
The CPU 1518-4 PN/DP MFP has the following properties:
Property
CPU display
Supply voltage
PROFINET IO
PROFINET interface (X1 P1
R and X1 P2 R)
PROFINET interface
(X2 P1)
PROFINET interface
(X3 P1)
Operation of the CPU as
• IO controller
• I-device
PROFIBUS DP
PROFIBUS interface (X4)
Operation of the CPU as a
DP master
26
Description
All CPUs of the SIMATIC S7-1500 product series feature
a display with plain text information. The display pro-
vides information on order numbers, firmware version
and serial numbers of all connected modules.
In addition, you can set the IP address of the CPU and
make additional network settings. The display shows
error messages directly as plain text.
In addition to the functions listed here, a multitude of
other functions that are described in the SIMATIC S7-
1500 Display Simulator are shown on the display.
The 24 V DC supply voltage is fed via a 4-pin plug locat-
ed on the front of the CPU.
The interface has two ports. In addition to basic
PROFINET functionality, it also supports PROFINET IO RT
(real time) and IRT (isochronous real time).
The interface has one port. In addition to basic
PROFINET functionality, it also supports PROFINET IO RT
(real time).
The interface is (typically) used to:
• Link development tools for C/C++ applications
• Connect the TIA Portal to the development of STEP 7
applications
• Communicate to the "outside world" from C/C++
Runtime
• Communicate internally between C/C++ and CPU
Runtime (via virtual network)
• IO controller:
As an IO controller, the CPU addresses the connect-
ed IO devices
• I-device
As an I-device (intelligent IO device), the CPU is as-
signed to a higher-level IO controller and is used as
an intelligent pre-processing unit for subroutines
The interface is used for connecting to a PROFIBUS
network.
In the role as a DP master, the CPU addresses the con-
nected DP slaves. It is not possible for the CPU to take
the role of a DP slave.
Additional information
• S7-1500, ET 200MP system man-
ual
(https://support.industry.siemens
.com/cs/ww/en/view/59191792)
• SIMATIC S7-1500 Display Simula-
tor
(https://support.industry.siemens
.com/cs/ww/en/view/109761758)
• Section Connecting up (Page 42)
• S7-1500, ET 200MP system man-
ual
(https://support.industry.siemens
.com/cs/ww/en/view/59191792)
PROFINET function manual
(https://support.industry.siemens.co
m/cs/ww/en/view/49948856)
SIMATIC S7-1500 ODK 1500S manu-
al
(https://support.industry.siemens.co
m/cs/ww/en/ps/13914/man)
PROFINET function manual
(https://support.industry.siemens.co
m/cs/ww/en/view/49948856)
PROFIBUS
(https://support.industry.siemens.co
m/cs/ww/en/view/59193579) func-
tion manual
CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)
Equipment Manual, 07/2021, A5E40882737-AB