Features:
- Siemens 6ES7416-2XN05-0AB0 provides 5.6 MB of work memory split between code and data.
- Two integrated PROFIBUS-capable interfaces support separate station and field-device paths.
- The S7-400 backplane supplies the processor and connects it to central-rack resources.
The CPU memory arrangement distinguishes the active work areas from load memory on a Flash or RAM card and battery-backed content.
One interface can retain MPI access while the second handles a larger DP master segment, or both can be assigned according to the station project.
Expansion-rack and multicomputing options make central-rack slot selection, backplane capacity and cross-CPU communication part of the system design.
The Siemens 6ES7416-2XN05-0AB0 SIMATIC S7-400 CPU 416-2 Central Processing Unit may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6ES7416-2XN05-0AB0 SIMATIC S7-400 CPU 416-2 Central Processing Unit Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Separating active and stored content
- Code area: One half of the work memory is reserved for executable program content.
- Data area: The other half holds process and program data used during execution.
- Load extension: A compatible Flash or RAM card expands the storage available for the project.
- Battery role: The backup battery preserves the documented RAM contents when backplane power is removed.
Assigning the serial interfaces
- First path: The MPI/DP interface can combine engineering access with a configured station network.
- Second path: The additional DP interface supports a separate master segment with its own node group.
- Rate agreement: All nodes on each segment must share a supported PROFIBUS transmission rate.
- Address separation: Station addresses are planned independently for the two configured networks.
Sharing an S7-400 central rack
- CPU grouping: Supported UR1 or UR2 arrangements can house multiple processors in one central rack.
- Task division: Each CPU executes its own program while the station project defines cross-CPU data exchange.
- Backplane sharing: The processors use common central-rack resources without merging their program memories.
- Slot planning: CPU positions and assigned modules must match the configured multicomputing layout.
Controlled configuration updates
- Running station: Supported configuration-in-run changes are applied within the documented S7-400 CiR limits.
- Change scope: Only permitted hardware and parameter modifications qualify for an online update.
- Project match: The engineering station and CPU configuration must remain synchronized after the change.
- Restart boundary: Modifications outside the CiR scope require the normal stop or restart procedure.