Features:
- One RS-485 PROFIBUS interface provides DPV1 master, S5-compatible, PG/OP and S7 communication services.
- Open SEND/RECEIVE traffic and S7 communication use separately specified connection resources.
- The compact single-width processor receives operating power from the S7-400 backplane.
The 9-pin Sub-D connector forms the fieldbus boundary between the central rack and the configured PROFIBUS stations.
DP input data is mapped into the master address area, while output data returns through the assigned slave relationships.
STEP 7 defines bus settings, connection resources and the communication blocks used by the controller program.
The Siemens 6GK7443-5DX05-0XE0 SIMATIC NET 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 6GK7443-5DX05-0XE0 SIMATIC NET 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.
From the master connector to slave data
- Physical interface: One 9-pin Sub-D RS-485 socket connects the CP to the PROFIBUS segment.
- Master role: DPV1 services coordinate cyclic data and supported acyclic exchanges with configured slaves.
- Address areas: The master maps separate total input and output areas, with a defined per-slave data limit.
- Bus rate: The project selects a PROFIBUS rate within the supported 9.6 kbit/s to 12 Mbit/s range.
Allocating communication services
- SEND/RECEIVE: Open communication uses its specified pool of connections and user-data length per connection.
- S7 communication: S7 services draw from a separately stated maximum connection count.
- DP influence: The maximum active multi-protocol connections changes when the DP master function is operating.
- Station total: CP quantity and master roles must be checked together with other communication processors in the S7-400 rack.
Power and slot relationship
- Module format: The processor occupies one compact S7-400 module width in the central rack.
- Backplane power: The rack supplies 5 V DC through the backplane, so no external module-supply connector is used.
- Thermal boundary: The documented power loss and operating-temperature range apply to the installed rack arrangement.
- Protection: IP20 construction requires the surrounding equipment to provide the necessary enclosure.
Turning station requirements into a CP project
- Supported tools: Configuration uses the documented STEP 7 or STEP 7 Professional release.
- Bus parameters: The project assigns the PROFIBUS address, rate and DP master relationships.
- Program interface: SEND/RECEIVE blocks and S7 connections must stay within the CP resource limits.
- Commissioning check: Actual slave addresses and segment wiring must match the downloaded hardware configuration.