M31-AAAX4440G Distributed IO Host
A modular industrial I/O controller supporting Modbus TCP/RTU protocols for real-time data acquisition and control, with scalable expansion up to 16 modules.
Key Features
- Dual Protocol Support: Seamless integration with Modbus TCP (Ethernet) and Modbus RTU (RS485).
- High Concurrency: Allows 5 simultaneous client connections for distributed control systems.
- Functional Flexibility: Supports critical Modbus function codes (01/02/03/04/05/06/15/16) for read/write operations.
- Modular Expansion Hot-swappable design for adding up to 16 I/O extension modules (e.g., GAAAX4440) without replacing the entire unit.
- Real-Time Diagnostics: Built-in status monitoring for I/O module communication integrity.
- Robust Power Design: Wide input voltage range (DC 9–36V) for industrial environments.
Technical Specifications
| Category | Parameter | Value |
|---|---|---|
| Physical Interfaces | Communication Ports | RJ45 (10/100M Ethernet), RS485 |
| Electrical | Operating Voltage | DC 9–36V |
| Mechanical | Dimensions (L×W×H) | 110 × 40 × 100 mm |
| Environmental | Operating Temperature | -40°C to +85°C |
| I/O Capacity | Default Channels | 4× DI (Digital Input), 4× AI (Analog Input), 4× DO (Digital Output) |
| Expansion | Max Extensions | 16 modules (e.g., GAAAX4440 for additional I/O) |
| Weight | Unit Mass | 180 ± 5g |
Typical Applications
Ideal for industrial automation scenarios requiring remote monitoring and control:
- Factory Automation: Integrates with PLCs (e.g., Siemens S7-200 Smart) and SCADA systems for machine control.
- Process Monitoring: Collects sensor data (4–20mA/0–10V analog signals) from production lines.
- Energy Management: Controls relays for power distribution and logs consumption metrics.
- Building Management: Monitors HVAC systems via dry-contact inputs and modulates outputs.
| Category | Name | Parameter |
| power supply | Operating Voltage | DC9 ~ 36V |
| Power indicator | PWK red LED indicator light | |
| communication | Communication interface | RJ45, RS485 |
| baud rate | 9600bps (optional) | |
| Protocol | Standard Modbus TCP, Modbus RTU protocol | |
| MODBUS | Device address | be modified through Modbus instructions, host computer and hardware dialing |
| DI input | input type | NPN,PNP |
| Input voltage | 12~24 V | |
| Collection frequency | Maximum 2.5 Hz | |
| Input instructions | DI green LED indicator light | |
| AI input | Collection characteristics | Single-ended input |
| input type | 0-20mA, 4-20mA | |
| AI resolution | 3% | |
| Collection frequency | Maximum 2.5 Hz | |
| Input instructions | none | |
| DO output | DO output type | Type A relay(Normally open) |
| DO output mode | Level output | |
| Relay contact capacity | 5A 30VD,5A 250VAC (the maximum supported total current of the same COM common terminal is 8A) | |
| Output instructions | DO green LED indicator light | |
| other | Product Size | 1 10 mm * 40 mm * 100 mm (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 | Installation of positioning holes and guide rails |
Device default parameters
| Category | Name | Parameter |
| Basic parameters | Modbus address | 1 |
| baud rate | 9600bps (9 options available) | |
| Check digit | None (default). Odd, Even | |
| data bits | 8 | |
| Stop bit | 1 | |
| DI filter parameters | 6 | |
| AI filter parameters | 6 | |
| Network parameters | Operating 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 sen-er | 114.114.114.114 | |
| Native MAC | Determined by chip (fixed) |
