Product overview
2.3 Firmware functions
CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 05/2021, A5E49868646-AA
15
Function
Description
Additional information
PROFINET IO
System redundancy S2
IO-Devices with S2 system redundancy enable uninter-
rupted operation during a primary backup switchover.
If the role of the CPUs changes, the new primary CPU
takes over the PROFINET IO communication.
•
Redundant System S7-1500R/H
https://support.industry.siemens
System Manual
•
Function manual PROFINET
https://support.industry.siemens
Switched S1 device
The switched S1 device function of the CPU enables
operation of standard IO devices in the S7-1500R/H
redundant system.
Redundant System S7-1500R/H
https://support.industry.siemens.co
) Sys-
tem Manual
RT (real time)
RT prioritizes PROFINET IO frames over standard frames.
This ensures the required determinism in the automa-
tion technology. In this process the data is transferred
via prioritized Ethernet frames.
Function manual PROFINET
https://support.industry.siemens.co
MRP (Media Redundancy
Protocol)
The Media Redundancy Protocol enables the configura-
tion of redundant networks. Redundant transmission
links (ring topology) ensure that an alternative commu-
nication path is made available if a transmission link
fails.
Within the PROFINET ring, the H-CPUs assume the role
of the MRP Manager following appropriate project con-
figuration and all other devices in the ring assume the
role of the MRP clients.
MRP interconnection
The process MRP interconnection is an enhancement of
MRP and allows redundant coupling of two or more
rings with MRP in PROFINET networks. MRP intercon-
nection is - like MRP - specified in the standard IEC
62439-2 (Edition 3).
PROFIenergy
PROFIenergy is a PROFINET-based data interface for
switching off consumers centrally and with full coordi-
nation during pause times regardless of the manufac-
turer or device type. Through this, the process should
only be provided with the energy that is absolutely
required. Most of the energy is saved by the process.
The PROFINET device itself only contributes a few watts
to the savings potential.
Integrated technology
Integrated closed-loop
control functionality
•
PID Compact (continuous PID controller)
•
PID 3Step (step controller for integrating actuators)
•
PID Temp (temperature controller for heating and
cooling with two separate actuators)
Function manual PID Control
https://support.industry.siemens.co
Controlling, measuring
and position detection
•
TO_BasicPos (control of a SINAMICS drive)
•
SSI_Absolute_Encoder (control of position detection
and measuring function of the TM PosInput tech-
nology module)
STEP 7 online help
Summary of Contents for CPU 1518HF-4 PN
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