Features:
- An isolated RS422/485 channel adds point-to-point communication to an S7-300 station.
- A dedicated protocol processor handles serial framing separately from the CPU program.
- Transmit, receive and system-fault LEDs distinguish data activity from diagnostic conditions.
Siemens
6ES7341-1CH01-0AE0 is a SIMATIC S7-300 CP 341 communication processor that links the PLC CPU with serial RS422 or RS485 equipment.
Protocol processing inside
6ES7341-1CH01-0AE0 controls serial framing and acknowledgment while program data moves between the communication processor and the S7-300 CPU.
Front indicators on
6ES7341-1CH01-0AE0 separate transmitted characters, received characters and module faults so communication activity can be distinguished from diagnostic events.
The Siemens 6ES7341-1CH01-0AE0 CP 341 RS422/485 Communication Processor may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6ES7341-1CH01-0AE0 CP 341 RS422/485 Communication 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.
Selecting the serial procedure
- 3964(R) Link: The integrated procedure controls acknowledged serial transfer.
- RK512 Link: The processor supports the documented computer-link procedure.
- ASCII and Printer: Character-oriented and printer procedures are available for compatible devices.
- Protocol Parameters: Framing, character timing and acknowledgment behavior are configured independently of the CPU program.
Moving serial frames to the CPU
- Receive Storage: A 4096-byte buffer holds incoming serial frames for CPU access.
- Input Transfer: Each program cycle moves up to 32 bytes from the processor to the S7-300 CPU.
- Output Transfer: Each program cycle moves up to 32 bytes from the CPU to the processor.
- Queue Selection: Buffer configuration retains one frame or as many as 250 frames.
Matching the RS422 or RS485 wiring
- Connector: One isolated 15-pin Sub-D connector carries the serial signals.
- RS422 Path: Separate transmit and receive pairs provide full-duplex communication.
- RS485 Path: A shared pair provides half-duplex bus communication.
- Cable Boundary: The selected bit rate and interface mode determine cable length and termination.
Distinguishing traffic from faults
- Transmit Indicator: TXD follows characters sent through the serial interface.
- Receive Indicator: RXD follows characters accepted from the connected device.
- Fault Indicator: SF identifies parameter, interface or module diagnostic conditions.
- CPU Reporting: A diagnostic interrupt passes the processor condition to the S7-300 CPU.