Siemens 6ES7516-3AN02-0AB0 SIMATIC S7-1500 CPU 1516-3 PN/DP
A three-interface S7-1500 CPU with 1 MB program memory, 5 MB data memory, two PROFINET networks and PROFIBUS DP.
Key Information
6ES7516-3AN02-0AB0 is the CPU 1516-3 PN/DP. Siemens specifies 1 MB program work memory, 5 MB data work memory and 10 ns bit performance.
Its communication boundary includes a PROFINET IRT interface with a two-port switch, a second PROFINET RT interface and a PROFIBUS interface. A SIMATIC Memory Card is required.
The product is cancelled and Siemens publishes 6ES7516-3AP03-0AB0 as successor. Migration requires a project, firmware and network review across all three interfaces.
Functions
Run higher-capacity control tasks
Executes the approved S7-1500 application with the documented program and data memory.
Coordinate two PROFINET domains
Separates the IRT network from the second RT interface according to the project.
Maintain PROFIBUS integration
Supports the configured DP network and its installed station records.
Provide service diagnostics
Exposes CPU, I/O and communication evidence for troubleshooting and acceptance.
Specifications
| Manufacturer | Siemens | Exact model | 6ES7516-3AN02-0AB0 |
|---|---|---|---|
| Product designation | CPU 1516-3 PN/DP | Program work memory | 1 MB |
| Data work memory | 5 MB | Bit performance | 10 ns |
| Interface 1 | PROFINET IRT with two-port switch | Interface 2 | PROFINET RT |
| Interface 3 | PROFIBUS DP | Memory card | SIMATIC Memory Card required |
| Lifecycle | Cancelled | Published successor | 6ES7516-3AP03-0AB0 |
Installation
Archive every bus
Export both PROFINET configurations, the PROFIBUS station map, controller settings and hardware configuration.
Retain the memory card
Record the SIMATIC Memory Card identity and verified project archive before CPU removal.
Review the successor
Compare firmware, TIA Portal support and communication behavior before approving migration.
Prove the application
Test all I/O, drives, HMI, peer links, PROFIBUS stations and machine safety interfaces.
Lifecycle
- Lifecycle planning
- Treat the published successor as a migration path that requires engineering approval.
- Three-interface custody
- Keep device names, addresses and station maps separated by interface.
- Acceptance archive
- Store controller diagnostics and functional-test evidence with the final project checksum.
FAQ
Q01What network records are required for a 6ES7516-3AN02-0AB0 spare?+
Provide both PROFINET interface records, the PROFIBUS station map, IP/device names, bus parameters and project archive.
Q02Can 6ES7516-3AP03-0AB0 replace 6ES7516-3AN02-0AB0 without project changes?+
No. Siemens identifies it as successor, but hardware support, firmware, engineering and communication compatibility require validation.
Q03Why is the SIMATIC Memory Card important for 6ES7516-3AN02-0AB0?+
Siemens requires the card; its identity and validated contents belong to the replacement record.
Q04What should be checked on the PROFIBUS side before removing 6ES7516-3AN02-0AB0?+
Record the DP master configuration, station addresses, baud rate, diagnostics and physical termination state.
Q05What proves 6ES7516-3AN02-0AB0 is ready after service?+
Clean CPU diagnostics plus successful tests of both PROFINET networks, every PROFIBUS station and all application interlocks complete acceptance.
About IndustryParts
https://www.industryparts.com/Three communication domains are documented independently
IndustryParts keeps both PROFINET records, the PROFIBUS map, exact CPU article and memory-card evidence together.
- •Exact submitted model retained
- •Installed-system evidence reviewed
- •Requested quantity linked to the enquiry
Related Models
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Send the complete 6ES7516-3AN02-0AB0 label, requested quantity, delivery destination and installed-system context.

