
Product overview
2.3 Firmware functions
CPU 1515R-2 PN (6ES7515-2RM00-0AB0)
Manual, 10/2018, A5E42009914-AA 15
Firmware functions
Functions
CPU 1515R-2 PN supports the following firmware functions:
There are two duplicate CPUs that synchronize their
data via redundancy connections within a PROFINET
ring. If one of the CPUs fails, the other CPU retains
Redundant System S7-1500R/H
(https://support.industry.siemens.co
m/cs/ww/en/view/109754833) Sys-
Integrated system diag-
nostics
The system automatically generates the messages for
the system diagnostics and outputs these messages
via a programming device/PC, HMI device or the inte-
grated display. System diagnostics information is also
available when the CPUs are in operating state STOP.
Function manual Diagnostics
(http://support.automation.siemens.c
om/WW/view/en/59192926)
Integrated trace function-
ality
Trace functionality supports you in troubleshooting
and/or optimizing the user program.
You record device tags and evaluate the recordings
with the trace and logic analyzer function. Tags are, for
example, drive parameters or system and user tags of
a CPU.
Trace and logic analyzer functions are suitable for
monitoring highly dynamic processes.
Note: Note that the S7-1500R/H redundant system
supports recording of measurements. However, saving
the measurements to the SIMATIC memory card is not
supported.
Function manual Using the trace and
logic analyzer function
(http://support.automation.siemens.c
om/WW/view/en/64897128)
System redundancy S2 All IO devices are connected redundantly in the redun-
dant S7 1500R/H system. All IO devices assigned to
the system must therefore support system redundancy
S2.
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.
com/cs/ww/en/view/109754833)
System Manual
•Function manual PROFINET
(http://support.automation.sieme
ns.com/WW/view/en/49948856)
RT (real time) RT prioritizes PROFINET IO frames over standard
frames. This ensures the required determinism in the
automation technology. In this process the data is
transferred via prioritized Ethernet frames.
Function manual PROFINET
(http://support.automation.siemens.c
om/WW/view/en/49948856)
MRP (Media Redundancy
Protocol)
The Media Redundancy Protocol enables the configu-
ration 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 R-CPUs assume the
role of the MRP Manager following appropriate project
configuration and all other devices in the ring assume
the role of the MRP clients.