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PRODUCT DESCRIPTION
6ES7515-2RN03-0AB0 for redundant PROFINET process control
Siemens 6ES7515-2RN03-0AB0 is the CPU 1515R-2 PN for SIMATIC S7-1500R redundant control. It provides 1 MB of program work memory and 4.5 MB of data work memory. Two matching CPUs synchronize over a PROFINET ring so that the backup can take over process control if the primary CPU fails.
The X1 interface has two PROFINET RT ports for the redundant ring; X2 provides a separate single-port basic Ethernet connection. A redundant system requires two CPUs, two SIMATIC Memory Cards and an engineered I/O network. This R-CPU is not a fail-safe F-CPU; check the installed firmware and matching STEP 7 project before replacement.
The X1 interface has two PROFINET RT ports for the redundant ring; X2 provides a separate single-port basic Ethernet connection. A redundant system requires two CPUs, two SIMATIC Memory Cards and an engineered I/O network. This R-CPU is not a fail-safe F-CPU; check the installed firmware and matching STEP 7 project before replacement.
ACTUAL APPLICATIONS
Where 6ES7515-2RN03-0AB0 supports process continuity
These scenarios follow the redundancy principle and integrated control functions documented by Siemens. Each requires validated application logic, compatible I/O and the engineered system arrangement.
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01 · REDUNDANT PROCESS CONTROL
Maintain control when the primary CPU fails
Two CPU 1515R-2 PN units synchronize through their PROFINET ring. If the primary CPU fails, the backup takes over process control at the interruption point. Engineer the IO devices and ring topology for the required availability; one CPU alone is not a redundant pair. -
02 · ACTUATOR REGULATION
Regulate integrating actuators with three-step control
Siemens documents PID_3Step for integrating actuators. Use the controller in a validated regulating loop, matching the actuator interface, feedback, output interlocks and tuning to the actual process rather than treating CPU redundancy as actuator protection. -
03 · TEMPERATURE CONTROL
Coordinate separate heating and cooling outputs
The documented PID_Temp function controls heating and cooling through two separate actuators. Engineer the temperature measurement, output scaling and independent protection for the thermal process; validate the loop before putting the redundant station into service.
Technical specifications for 6ES7515-2RN03-0AB0
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Product Model6ES7515-2RN03-0AB0
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Product ParametersRedundant Central Processing Unit
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In stock1 unit
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ManufacturerSiemens
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Program work memory1 MB
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Data work memory4.5 MB
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Typical bit processing time20 ns
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Ethernet interface arrangementX1: two-port PROFINET RT switch; X2: one basic Ethernet port
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Maximum PROFINET IO devices64 on the integrated IO controller
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Local rack capacity5 modules: CPU, up to 2 PS and 2 CP
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Permissible DC supply19.2 to 28.8 V DC; 24 V DC rated
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Typical power loss3.6 W
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Memory-card requirementOne SIMATIC Memory Card per CPU; maximum 32 GB load memory
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Operating ambient temperatureHorizontal -30 to 60 deg C; vertical -30 to 40 deg C; no condensation
View all additional
Alternative Names
6ES7515-2RN03-0AB0
CPU 1515R-2 PN
SIMATIC S7-1500R Redundant Controller
SYSTEM & REPLACEMENT CHECK
Information needed before ordering
Three direct checks to secure your system integration and minimize ordering risks.
Information
System integration
Replacement check
Manuals & support
SIMATIC S7-1500R REDUNDANCY
Engineer the CPU pair and PROFINET ring together
Siemens 6ES7515-2RN03-0AB0 is the CPU 1515R-2 PN for SIMATIC S7-1500R redundant control. It provides 1 MB of program work memory and 4.5 MB of data work memory. Two matching CPUs synchronize over a PROFINET ring so that the backup can take over process control if the primary CPU fails.
The X1 interface has two PROFINET RT ports for the redundant ring; X2 provides a separate single-port basic Ethernet connection. A redundant system requires two CPUs, two SIMATIC Memory Cards and an engineered I/O network. This R-CPU is not a fail-safe F-CPU; check the installed firmware and matching STEP 7 project before replacement.
Siemens documents S2 devices and switched S1 devices, with H-Sync Forwarding relevant to the ring topology. Check actual firmware before selecting the matching STEP 7 version; the 01/2024 manual covers V19 with firmware V3.1 and V18 with firmware V3.0, not a guarantee of the delivered firmware.
Features:
- Two matching R-CPUs for the redundant arrangement
- S2 and switched S1 device topology must be engineered
- No IRT, isochronous operation or safety-function claim
The Siemens 6ES7515-2RN03-0AB0 requires the CPU pair, memory cards, firmware and IO topology to be checked for reliable system integration and commissioning.
INTERCHANGEABILITY
Verify the complete replacement identity before commissioning
Identify both installed CPUs, their actual firmware and the validated project before replacing 6ES7515-2RN03-0AB0. Record the CPU and system IP addresses separately, the redundancy IDs, memory cards and X1 ring connections.
Agree the required process state and follow the S7-1500R/H system replacement procedure. A redundant architecture is not general permission to disconnect any cable or remove either CPU without checking the operating and synchronization state.
Restore the documented power and network assignments and the compatible project. Verify the intended primary/backup roles, CPU diagnostics and IO communication, including the planned switchover acceptance test, before returning the station to operation.
Features:
- Check both CPU identities and the actual firmware pair
- Preserve ring wiring and project access credentials
- Validate redundant status and IO recovery
The Siemens 6ES7515-2RN03-0AB0 CPU 1515R-2 PN requires replacement verification of the redundant station, project and controlled replacement procedure before process handover.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: Official documents are provided through manufacturer links. Accessories, manuals, cables, calibration data, software, certificates, and other items are not included with this equipment unless listed in the stock item description.
Features:
- Available Siemens document references are confirmed before order
- Software licensing and project backups remain the customer's responsibility
- Accessories are supplied only when listed in the quotation
Documentation for the Siemens 6ES7515-2RN03-0AB0 CPU 1515R-2 PN documentation must match the installed firmware and redundant system; confirm manual availability in the written quotation.
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Important notice
Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
BUYER INFORMATION
Commercial terms without hidden steps
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Shipping & delivery
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DispatchEligible stock: same / next day
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CarriersDHL, FedEx or UPS
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Ship fromXiamen, China
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Packed size15.5 × 15.8 × 8.0 cm
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Shipping weightApprox. 0.46 kg
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Payment & customs
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PaymentBank transfer (T/T)
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CurrenciesUSD · EUR · GBP · RMB
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Credit cardsNot accepted
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HS reference8537101190
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OriginGermany
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Warranty & returns
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Warranty12 months from AMIKON
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InspectionLabel, condition and packing checks
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ReturnsPrior RMA authorisation required
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CompatibilityConfirm before order
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OEM warrantyDoes not apply
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Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Part checked
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Tracking supplied
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Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about 6ES7515-2RN03-0AB0
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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Does ordering one R-CPU provide the complete redundant pair?
No. The Siemens system structure requires two CPU 1515R-2 PN units, two SIMATIC Memory Cards, PROFINET ring cabling and IO devices. Ask for an itemized supply list so that a single CPU quotation is not mistaken for a commissioned redundant system. -
Where should a standard S1 device sit if it lacks H-Sync Forwarding?
Siemens advises placing standard IO devices behind a switch rather than directly in the redundant ring when they do not support H-Sync Forwarding. This avoids the associated cycle-time increase if the ring is interrupted. Check each device specification and GSD file. -
Can the X2 socket host a second PROFINET IO controller network?
No. X2 provides one port for basic Ethernet communication and has no PROFINET IO controller or IO device function. Use the X1 interface for the documented IO-controller and redundant-ring arrangement. -
Will this redundant CPU run an IRT or isochronous motion application?
The exact-model equipment manual lists IRT, isochronous operation and Motion Control as unsupported. Redundant process availability does not imply those capabilities; reassess the application if it depends on them. -
Does the R designation allow safety logic to replace an F-CPU?
No. Siemens lists this CPU as unsuitable for safety functions and specifies no PROFIsafe support. Keep functional-safety hardware and validation requirements separate from redundancy for process availability. -
Can local signal modules be added beside the CPU like a standard S7-1500 rack?
The documented local configuration is limited to the CPU, up to two system power supplies and up to two CPs. Use the supported distributed I/O arrangement rather than assuming local signal-module expansion. -
Why is the system IP address missing from the front display?
The manual states that the system IP address is viewed in STEP 7, not on the CPU display. The display can show or assign the CPU IP addresses, PROFINET device name and redundancy ID; distinguish these identifiers during network diagnosis. -
Are the two X80 power pairs separate redundant supply inputs?
No. Siemens states that 1L+ and 2L+ are bridged internally, as are 1M and 2M. The second pair is for loop-through, limited to 10 A. Do not design independent isolated supplies from the appearance of two terminal pairs.
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