8×Digital Inputs, 8×Digital Outputs, 1×RS232/485 Serial Port
MW-IOD0808 is an 8-channel DI and 8-channel DO industrial IoT IO module that supports the Modbus RTU protocol for efficient I/O status collection and control. It features 1 RS232/485 serial port, 8 DI input channels, and 8 DO output channels, with a wide-range DC9~36V power input. The Modbus RTU slave establishes seamless connections with Modbus RTU masters, allowing configuration of slave addresses, serial port parameters, I/O status management, device information retrieval, and advanced operations like online reboot, factory reset, and firmware upgrades. With included remote IO configuration software for easy debugging and management, this device is engineered with industrial-grade components, high-performance design, and 35mm DIN rail or wall-mount installation. It operates in extreme temperatures from -40℃ to +85℃, ensuring robust performance in harsh environments. Rigorous functional, thermal, and EMC testing make it ideal for applications in industrial automation, building automation, environmental monitoring, energy management, security systems, and IoT environments.
| Software | |
| Management Function | Support Modbus RTU protocol, Slave address (1-247) setting and reading Support Modbus function codes 01, 02, 03, 04, 05, 06, 15, 16 Support DI status reading, DI input filtering, DI counting. Supports DO status reading and control, DO power-on initial state setting, DO output delay hold Support serial port parameter reading and setting Support device information reading Support online reboot, factory reset, device upgrade. Support remote IO configuration software management |
| Interface | |
| Serial Port | Serial port type: 1 RS232 or RS485 optional Connection: 6-position 5mm pitch terminal block Baud rate: 600bps~460800bps Data bit: 8bit Stop bit: 1bit, 2bit Check digit: None, Odd, Even Isolation voltage: 500VDC |
| DI | Number of channels: 8 digital inputs Connection: 10-position 5mm pitch terminal block Modbus function code: 02, 03, 04, 16 Rated voltage: DC12V (DC5~24V) Input Type: Wet contact PNP (Logic level 0: No external power input; Logic level 1: with DC5~24V external power input) Isolation protection: 500VAC (optocoupler isolation) |
| DO | Number of channels: 8 digital outputs (DO1-DO4 are 3-contact relays, DO5-DO8 are 2-contact relays) Connection: 20-position 5mm pitch terminal block Modbus function code: 01, 03, 04, 05, 15Output type: relay output (dry contact) Contact rated load: 10A@AC250V, 10A@DC30V Initial insulation resistance: 1000MΩ (min.) @500VDC Contact resistance: ≤100mΩ Electrical life: 100,000 operations (rated load) Isolation protection: 500VAC |
| Button | One-click restart, factory reset |
| Status LED | Operation, DO status |
| Power Supply | |
| Input Voltage | DC9~36V |
| Power Consumption | ＜3.5W@DC24V(full load) |
| Connection | 2-position 5mm pitch terminal block |
| Protection | Anti-reverse |
| Physical Characteristics | |
| Dimensions | 145×90×40 mm (Not including DIN rail mounting clip or connectors) |
| Installations | 35mm DIN Rail mounting or wall mounting |
| Shell | Plastic |
| Weight | 0.25kg |
| Working Environment | |
| Operating Temp | -40℃~+85℃ |
| Storage Temp | -40℃~+85℃ |
| Relative Humidity | 5%~95%(non-condensing) |
| Industry Standard | |
| EMC | IEC 61000-4-5(Surge): Level 3 |
| Standard Model | RS232/485 | DI | DO | Input Voltage |
| MW-IOD0808 | 1 | 8 | 8 | DC9~36V |
