Ebyte 8AO M31-XXXA0008G host Support Modbus TCP/RTU RJ45/RS485 Distributed remote IO wireless communication module
M31-XXXA0008G 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. Its expandable design enables the connection of up to 16 IO expansion modules as needed, eliminating the need to purchase a complete system. 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. Send Inquiry Purchase File DownloadsCompare Specification Parameters Pin Definition Order Way File Downloads Series Products 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, 4-20mADifferential current: 0-20mA, 4-20mA, ±20mADifferential 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)