Siemens 6ES7416-2XN05-0AB0 SIMATIC S7-400 CPU 416-2 DP
ManufacturerSiemensModel6ES7416-2XN05-0AB0Product TypeSIMATIC S7-400 CPU 416-2 DP central processing unit
01Key Information
Siemens 6ES7416-2XN05-0AB0 is the SIMATIC S7-400 CPU 416-2 DP from the V5.x hardware generation. It provides 5.6 MB of work memory, with 2.8 MB for program and 2.8 MB for data, and integrates MPI/PROFIBUS DP plus a second PROFIBUS DP interface. The CPU supports S7 routing and documented communication-processor combinations, but every interface, firmware and memory-card dependency must be matched to the installed STEP 7 project.
Selection ControlVerify the complete article number, hardware revision, firmware, memory, interfaces, engineering software and system architecture before ordering.
02Functions
Core Functions
- Executes demanding standard S7-400 control programs using 5.6 MB of integrated work memory.
- Provides equal 2.8 MB program and data memory areas for this CPU generation.
- Supports MPI and PROFIBUS DP communication on the combined X1 interface.
- Provides a second integrated PROFIBUS DP interface for additional distributed-I/O or fieldbus architecture.
- Supports S7 routing and firmware-specific Ethernet and PROFIBUS communication processors.
- Provides the standard S7-400 diagnostics, interrupt processing and configured communication services used by the project.
Product Identity
- Manufacturer: Siemens
- Model: 6ES7416-2XN05-0AB0
- Product Type: SIMATIC S7-400 CPU 416-2 DP central processing unit
- Status: Firmware V5.x S7-400 CPU generation
03Specifications
| Manufacturer | Siemens |
|---|---|
| Article Number | 6ES7416-2XN05-0AB0 |
| Product Designation | CPU 416-2 DP |
| Automation System | SIMATIC S7-400 |
| CPU Type | Standard central processing unit |
| Firmware Generation | V5.0 to V5.3 documented |
| Work Memory | 5.6 MB total |
| Program Memory | 2.8 MB |
| Data Memory | 2.8 MB |
| Interface X1 | MPI / PROFIBUS DP |
| Second Interface | PROFIBUS DP |
| S7 Routing | Supported |
| Communication Compatibility | Firmware-specific S7-400 CP combinations |
04Installation
- Confirm the exact 6ES7416-2XN05-0AB0 article, firmware version and memory card.
- Use the correct STEP 7 hardware catalog entry and preserve the complete project backup.
- Record both PROFIBUS networks separately, including master roles, addresses, baud rates, termination and slave diagnostics.
- Verify communication processors against Siemens compatibility tables for the installed V5.x firmware.
- Inspect rack power, backplane connectors and memory-card condition during the exchange.
- After commissioning, validate both DP paths, MPI access, all I/O, routing, alarms, interrupts and the application sequence.
05Lifecycle
- This article is a firmware-specific S7-400 CPU generation; confirm current Siemens order, service or repair availability.
- Do not assume that CPU 416F-2 6ES7416-2FN05-0AB0 is equivalent; it is the fail-safe variant.
- A later CPU 416-2 generation requires verification of the STEP 7 project, firmware, memory, DP functions and communication modules.
- Archive the original firmware information and project before any lifecycle change.
- Perform a controlled migration test whenever the CPU, firmware or fieldbus architecture changes.
