Features:
- One isolated RS232C channel adds point-to-point serial communication to an S7-300 station.
- ASCII, 3964(R), printer, and RK 512 procedures control telegram handling.
- RxD, TxD, and SF indicators separate traffic activity from module faults.
Siemens 6ES7341-1AH02-0AE0 moves serial telegrams between the front interface and the S7-300 program.
The selected procedure on 6ES7341-1AH02-0AE0 defines framing, acknowledgements, and buffer handling.
External interface supply and backplane logic power are separate electrical paths on 6ES7341-1AH02-0AE0.
The Siemens 6ES7341-1AH02-0AE0 SIMATIC S7-300 CP 341 RS232C Communication Processor may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6ES7341-1AH02-0AE0 SIMATIC S7-300 CP 341 RS232C 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.
RS232C Connection Boundaries
- Partner link: The nine-pin Sub-D interface connects one point-to-point serial device.
- Isolation: The RS232C channel is electrically isolated from the internal controller-side circuitry.
- Cable boundary: The installed serial path must remain within the documented length and signal conditions.
- Port test: RxD and TxD activity helps determine whether data reaches and leaves the interface.
Telegram Procedure Selection
- ASCII: User-defined character framing supports transparent serial data exchange.
- 3964(R): The procedure adds coordinated telegram transfer and acknowledgement handling.
- RK 512: The protocol organizes the documented controller-oriented data services.
- Printer mode: Formatted output can be directed to a supported serial printer application.
Traffic and Module Fault Checks
- Receive state: The RxD indicator shows incoming serial activity independently of PLC data processing.
- Transmit state: The TxD indicator confirms that the module is driving the configured serial path.
- Module fault: SF directs troubleshooting toward configuration, supply, or module diagnostics.
- Buffer review: PLC status and receive/send buffers identify telegrams rejected after physical transfer.
Supply and Partner Wiring
- Supply terminals: L+, M, and ground provide the documented external interface supply connection.
- Signal assignment: The Sub-D pinout must match the DTE or DCE role of the serial partner.
- Reference path: Cable shield and signal reference must follow the documented RS232C arrangement.
- Commissioning: Confirm baud rate, data bits, parity, stop bits, handshaking, and procedure at both ends.