JMDM-40DIOMR/MT is a 40-point I/O high-reliability industrial-grade controller independently developed by Shenzhen Jingmin Digital Machine Co., Ltd. It has independent control mode and PC serial port monitoring mode, which can be widely used in various civil and industrial occasions. It has the characteristics of anti-electromagnetic interference, lightning protection, stability and reliability, and is suitable for various harsh industrial and civil environments.
The JMDM-40DIOMR/MT is a 40‑point I/O industrial controller developed by Jingmind. It supports 20 digital inputs and 20 outputs, offers independent control via KEIL C programming, and can be monitored or controlled through an RS232/RS485 serial interface.
The manual covers performance parameters, detailed wiring diagrams, command examples for both independent and serial‑control modes, and provides guidance for installation, programming, and troubleshooting. It also includes shipping, warranty, and contact information for technical support. This manual is written in Chinese.
| Power supply | 12 V or 24 V DC/AC |
|---|---|
| Main controller | 8‑bit MCU + high‑speed stable FPGA |
| Program / data memory | 32 KB program memory, 32 KB data memory |
| I/O configuration (MR version) | 20 isolated digital inputs, 20 relay outputs, 0‑220 V, 5 A max |
| Communication interface | Standard RS232 (15 kV ESD protection), optional RS485 extension |
| Dimensions | 180 mm × 125 mm × 47 mm (installed) |
It provides 20 isolated digital inputs and 20 relay outputs.
The controller uses a standard RS232 serial interface, and can be extended to RS485 for longer distances.
The RS232 connection works up to 10 m; using RS485 the distance can be extended to 1000 m.