The ZLG CAN232 smart CAN interface card provides a low‑cost, easy‑to‑use CAN development tool that connects to a PC via an RS‑232 port. It includes optical isolation, a built‑in DC/DC converter, and supports CAN2.0A/B protocols on Windows platforms.
The manual details hardware parameters, installation steps, DB9 connector pin definitions, LED status indicators, and provides a general interface library with test software. Frequently asked questions address common connection issues, termination resistor requirements, data throughput, and multi‑card usage. This manual is written in Chinese.
| Connector | DB9, complies with DeviceNET and CANopen |
|---|---|
| Supported CAN protocols | CAN2.0A and CAN2.0B (ISO/IS 11898) |
| CAN receive FIFO | 256 bytes |
| RS‑232 baud rate | up to 57 600 bps |
| Power supply | +9 V / 400 mA |
| Optical isolation voltage | 1000 VDC |
It is usually caused by an incorrect RS‑232 port number or baud‑rate setting; adjust the port or baud rate and try again.