Siemens 6ES7416-2FN05-0AB0 SIMATIC S7-400 CPU 416F-2 DP
ManufacturerSiemensModel6ES7416-2FN05-0AB0Product TypeSIMATIC S7-400 CPU 416F-2 DP fail-safe central processing unit
01Key Information
Siemens 6ES7416-2FN05-0AB0 is the fail-safe CPU 416F-2 DP for SIMATIC S7-400 safety-related automation. It provides 5.6 MB of work memory, divided into 2.8 MB for the program and 2.8 MB for data, and combines MPI/PROFIBUS DP communication with a second PROFIBUS DP interface. Safety operation depends on the complete S7 F-system project, licensed engineering environment, compatible F-I/O, PROFIsafe parameters and documented acceptance procedure.
Selection ControlVerify the complete article number, hardware revision, firmware, memory, interfaces, engineering software and system architecture before ordering.
02Functions
Core Functions
- Executes standard and fail-safe program sections in an approved SIMATIC S7 F-system configuration.
- Provides 2.8 MB of program memory and 2.8 MB of data memory for the documented CPU generation.
- Supports MPI and PROFIBUS DP communication for programming, HMI, controller and distributed-I/O functions.
- Provides a second integrated PROFIBUS DP path for the engineered fieldbus architecture.
- Supports S7 routing and compatible S7-400 Ethernet or PROFIBUS communication processors according to Siemens compatibility records.
- Processes F-I/O diagnostics and configured safety reactions only within the validated safety application.
Product Identity
- Manufacturer: Siemens
- Model: 6ES7416-2FN05-0AB0
- Product Type: SIMATIC S7-400 CPU 416F-2 DP fail-safe central processing unit
- Status: Legacy fail-safe CPU generation; service availability confirmation required
03Specifications
| Manufacturer | Siemens |
|---|---|
| Article Number | 6ES7416-2FN05-0AB0 |
| Product Designation | CPU 416F-2 DP |
| Automation System | SIMATIC S7-400 |
| CPU Type | Fail-safe central processing unit |
| Firmware Generation | V5.0 to V5.3 documented in Siemens compatibility records |
| Work Memory | 5.6 MB total |
| Program Memory | 2.8 MB |
| Data Memory | 2.8 MB |
| Integrated Communication | MPI / PROFIBUS DP plus second PROFIBUS DP interface |
| Safety Engineering | SIMATIC S7 F-system workflow required |
| Communication Compatibility | Firmware-specific S7-400 CP combinations |
| Commercial Position | Legacy generation; confirm current Siemens service availability |
04Installation
- Match the complete article number, hardware revision and installed firmware before exchange.
- Use a supported STEP 7 and safety-engineering release for the exact CPU and existing project.
- Back up the standard and safety projects, F-signature, PROFIsafe addresses, F-monitoring times and acceptance records.
- Document MPI and both PROFIBUS networks, including addresses, transmission rates, termination and every configured slave.
- Check every communication processor against the exact CPU and firmware compatibility combination.
- After installation, perform the prescribed safety acceptance tests and verify all standard and F-I/O reactions before returning the system to service.
05Lifecycle
- This article belongs to an earlier S7-400 fail-safe CPU generation; current Siemens service and spare-part availability must be confirmed for each requirement.
- Do not replace it with a standard CPU 416-2 because the standard variant does not provide the same fail-safe system role.
- A newer F-CPU is not an automatic drop-in replacement; memory, firmware, fieldbus behavior, safety project and certification records require migration engineering.
- Retain the original memory card and project only when their exact compatibility and data integrity are confirmed.
- Preserve the complete safety validation package through repair, replacement or modernization.
