Features:
- The CPU joins rack processing with MPI, PROFIBUS DP, and PROFINET communication.
- X1, X5, and the optional IF1 position serve different bus responsibilities.
- Rack expansion and multicomputing increase station scope without combining the separate device-group limits.
Operating power arrives through the S7-400 backplane, and the processor occupies two slots in the rack.
Integrated and optional communication paths must be counted separately because each interface owns its own device group.
Online access combines STEP 7 engineering, clock synchronization, and read-only web information rather than browser-based control.
The Siemens 6ES7414-3EM05-0AB0 CPU 414-3 PN/DP Central Processing Unit may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6ES7414-3EM05-0AB0 CPU 414-3 PN/DP 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.
How the three interface positions are assigned
- X1: The combined MPI/PROFIBUS DP interface operates at up to 12 Mbit/s.
- X5: The two-port Ethernet interface supplies 100 Mbit/s PROFINET communication.
- IF1: An IF 964-DP module can add another isolated PROFIBUS DP master or slave path.
- Separation: The connectors are not interchangeable; each retains its documented bus role.
How the CPU fits into the S7-400 rack
- Slot demand: The CPU occupies two rack slots.
- Power path: Operating power comes from the S7-400 system power supply through the backplane.
- Station growth: As many as 21 expansion units are documented for the system arrangement.
- Multicomputing: UR1 or UR2 can contain as many as four CPUs in a multicomputing configuration.
How device limits are divided by bus
- Integrated DP: The built-in PROFIBUS DP path supports up to 32 slaves.
- Optional DP: The IF 964-DP path supports up to 96 slaves.
- PROFINET: The IO-controller function supports up to 256 PROFINET devices.
- Planning rule: Each maximum belongs to its own interface group and should not be combined into one common station count.
How engineering and online viewing are separated
- Engineering baseline: STEP 7 V5.4 SP5 or later is listed for this CPU version.
- Web access: The integrated web server is read-only and supports up to five HTTP clients.
- Time service: Ethernet communication includes clock synchronization for the controller.
- Device service: PROFINET supports device replacement without a swap medium while project editing remains a STEP 7 task.