Features:
- One RS485 interface connects the S7-400 rack to PROFIBUS at up to 12 Mbit/s.
- DPV1, S5-compatible, PG/OP and S7 communication use separate processor resources.
- The backplane supplies power and exchanges data with the S7-400 CPU.
Controller data reaches the CP over the S7-400 backplane.
The selected communication service maps that data into PROFIBUS frames for the connected station.
Responses and diagnostic states return through the same CP while STEP 7 keeps hardware and program resources aligned.
The Siemens 6GK7443-5DX03-0XE0 CP 443-5 Extended Processor may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6GK7443-5DX03-0XE0 CP 443-5 Extended Processor 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.
Coordinating cyclic data for as many as 125 PROFIBUS slaves
- Slave count: The DPV1 master addresses up to 125 devices.
- Total input map: All slaves share a 4096-byte input area.
- Total output map: All slaves share a 4096-byte output area.
- Per-device boundary: Each slave remains within 244 input bytes and 244 output bytes.
Sharing one processor across different PROFIBUS message paths
- SEND/RECEIVE: Sixteen open-communication connections are available.
- User data: Each SEND/RECEIVE connection carries up to 240 bytes.
- S7 communication: A separate pool permits up to 48 connections.
- Programming access: PG/OP traffic uses the same physical PROFIBUS interface.
Moving controller data between the CPU and communication processor
- Rack supply: The S7-400 backplane provides 5 V DC.
- Typical current: The module draws 1.3 A from the backplane.
- Processor loss: Documented power loss is 6.5 W.
- Rack capacity: A CPU can use up to 14 documented communication processors.
Aligning the rack slot, PROFIBUS map and programmed connections
- STEP 7: Version 5.4 SP4 or higher configures the hardware.
- NCM S7: PROFIBUS engineering defines network and communication parameters.
- DP mapping: Slave addresses and data lengths must fit total and per-device limits.
- Block calls: Programmed SEND/RECEIVE or S7 services must match the configured connection resources.