Features:
- The CP 443-5 Extended operates as a PROFIBUS DPV1 master.
- A 9-pin RS485 interface connects the configured PROFIBUS segment.
- S7, PG/OP and S5-compatible services link the CP to their assigned partners.
The S7-400 backplane carries controller data and module power to the communication processor.
Configured DP slaves contribute cyclic input and output data within the CP process-image limits.
STEP 7 stores the bus address, transfer rate and station configuration used at startup.
The Siemens 6GK7443-5DX04-0XE0 SIMATIC S7-400 CP 443-5 Extended Communication Processor may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6GK7443-5DX04-0XE0 CP 443-5 Extended 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.
Relating slave data to the S7-400 process path
- Slave inputs: Cyclic input bytes arrive from the configured DP stations.
- Slave outputs: The controller sends calculated output bytes back through the CP.
- Per-slave boundary: Each station remains within its documented input and output data limit.
- Total map: All configured stations share the larger CP process-image capacity.
Keeping transfer rate, segment wiring and termination consistent
- Baud rate: Every station on the segment uses the configured PROFIBUS transfer rate.
- RS485 cable: The bus pair and shield terminate at the assigned Sub-D connector.
- Termination: Only the physical ends of an active segment use powered termination.
- Station address: Each slave address must agree with the STEP 7 hardware configuration.
Separating cyclic field data from controller and operator connections
- DPV1 service: The CP manages cyclic and documented acyclic exchanges with DP devices.
- S7 communication: Configured S7 connections exchange data with supported automation partners.
- PG/OP access: Engineering and operator communication use their assigned logical resources.
- S5-compatible path: Documented compatible services remain separate from the DP process image.
Restoring the CP with the saved S7-400 configuration
- Hardware identity: The complete 5DX04-0XE0 suffix must match the installed processor.
- STEP 7 project: The saved rack and network configuration restores the intended parameters.
- Bus verification: Addresses, rate and termination are checked before enabling outputs.
- Connection test: DP status and S7 connections are confirmed after the CP reaches operation.