The Heidenhain TNC 360 controller is a trusted CNC unit that enables reliable DNC communication through its specialized blockwise transmission protocol. Accurate configuration of RS232 interface parameters is critical for achieving error-free data transfer and stable drip-feeding. When running complex, high-memory programs that exceed the TNC 360's internal capacity, this blockwise protocol provides a robust solution for modern manufacturing by utilizing XOn/XOff flow control. Common configuration pitfalls often include baud rate mismatches, which lead to framing errors, or handshake failures where software flow control (DC3) is incorrectly ignored. Ensure your cabling utilizes proper shielding and that parity and stop bits are matched exactly between the PC and the machine control to prevent data corruption or transmission buffer overflows during continuous drip-feed operations.
| Parameter | Value | Comments |
|---|---|---|
| Baud Rate | Supports 110-38400 baud. Blockwise protocol is recommended for DNC (Drip-Feeding). | |
| Interface | EXT | RS232 Interface |
| 5010.0 | 515 | |
| 5010.1 | 17736 | |
| 5010.2 | 16712 | |
| 5010.3 | 279 | |
| 5010.4 | 5382 | |
| 5010.5 | 4 | |
| 5020 | 104 | 7 data bits, even parity, 2 stop bits, DC3 (XOn/XOff) |
| 5030 | 1 | Blockwise protocol enabled (1 = Enabled) |
Cable Connection and Notes
The Heidenhain TNC 360 requires a correctly configured RS232 cable for communication (9-pin PC to 25-pin CNC).
