M31-XAXA0404G Distributed Remote IO Module for Analog and Digital Signal Acquisition, Supporting Standard Modbus Protocol, Freely Configurable and Easily Expandable.
[Communication interface]：RJ45, RS485
[Working voltage]：DC 9~36V
[Product weight]：170±5g
[Introduction]：The M31 series distributed IO host supports Modbus TCP and RTU protocols, allows up to 5 clients to access simultaneously, and is compatible with function codes 01, 02, 03, 04, 05, 06, 15, and 16. The shell adopts three-proof coating, which is Anti-Fungal, Anti-Humidity, and Anti-Salt Spray. This reduces costs while facilitating easy integration into existing site environments. The device includes built-in status diagnostics for real-time monitoring of IO module communication status.
Official Store| category | name | parameter |
| power supply | Working voltage | DC 9～36V |
| Power indicator | PWR red LED indicator light | |
| communication | Communication interface | RJ45、RS485 |
| baud rate | 9600bps (optional) | |
| Communication protocol | Standard Modbus TCP, Modbus RTU protocol | |
| MODBUS | Device address | Can be modified through Modbus instructions, host computer and hardware dialing |
| DI input | input type | NPN、PNP |
| input voltage | 12~24V | |
| Input impedance | 7.2kΩ | |
| Collection frequency | Max 1K Hz | |
| Input instructions | DI green LED indicator light | |
| AI input | Collection characteristics | Single-ended input/differential input (model optional) |
| input type | Single-ended current: 0-20mA, 4-20mA Differential current: 0-20mA, 4-20mA, ±20mA Differential voltage: 0-5V, ±5V, 0-10V, ±10V | |
| AI resolution | 16 bits (differential)/12 bits (single-ended) | |
| AI accuracy | 1‰(differential)/3‰(single-ended) | |
| Collection frequency | Single-ended maximum 100Hz/differential maximum 40Hz | |
| Input instructions | AI green LED indicator light | |
| DO output | DO output type | Type A relay (normally open) |
| DO output mode | Level output | |
| Relay contact capacity | 5A 30VDC, 5A 250VAC (the total current of the same COM public terminal supports a maximum of 8A) | |
| Output instructions | DO green LED indicator light | |
| AO output | Output type | 0-20mA、4-20mA |
| AO output accuracy | 3‰ | |
| Input instructions | AO green LED indicator light | |
| other | Product size | 110mm * 40mm * 100mm (length*width*height) |
| Working temperature and humidity | -40～+85℃, 5%～95%RH (no condensation) | |
| Storage temperature and humidity | -40 ~ +105℃, 5% ~ 95%RH (no condensation) | |
| Installation method | Positioning holes and guide rail installation | |
| Basic parameters | Modbus address | 1 |
| baud rate | 9600bps (8 options available) | |
| Check digit | None (default), Odd, Even | |
| data bits | 8 | |
| Stop bit | 1 | |
| DI filter parameters | 6 | |
| AI filter parameters | 6 | |
| Network parameters | working mode | TCP server (up to 5 clients access) |
| DHCP | closure | |
| Gateway address | 192.168.3.1 | |
| subnet mask | 255.255.255.0 | |
| Local IP | 192.168.3.7 | |
| native port | 502 | |
| Target IP | 192.168.3.3 | |
| target port | 502 | |
| DNS server | 114.114.114.114 | |
| Native MAC | Determined by chip (fixed) |