NetDnc is a communication software used for communication between upper computer and lower computer. It supports both serial port connection and Ethernet connection, and is suitable for HNC-18/19 xp, HNC-21/22 CNC systems by Huazhong Numerical Control.
The NetDnc manual explains how to install the software on a Windows PC and set up communication with Huazhong CNC controllers such as the HNC‑18/19xp and HNC‑21/22 series. It covers both serial (RS232) and Ethernet interfaces, detailing wiring, parameter configuration and file transfer methods.
Key sections include hardware overview, software features, installation steps, communication mode selection, parameter settings, and troubleshooting tips. The document is written in Chinese and targets users who need to operate the NetDnc communication software for CNC machines.
| Serial interface cable length | <15 m |
|---|---|
| Supported serial wiring | 3‑wire and 7‑wire |
| Transfer speed | 70‑80 kb/s |
| Ethernet interface | Provided on HNC‑18/19xp, HNC‑21/22 |
| Compatible controllers | HNC‑18/19xp, HNC‑21/22 (firmware ≥7.10) |
Use an RS232 cable not longer than 15 m and match the 3‑wire or 7‑wire wiring as required.
The software can transmit data at 70‑80 kb/s.
NetDnc is compatible with HNC‑18/19xp and HNC‑21/22 series controllers (firmware version 7.10 or later).
Yes, the supported controllers provide an Ethernet interface for faster communication.