M31-AXXX8000G-U 8DI High-performance distributed I/O host Standard ModBus protocol ModBus TCP/RTU High response and high protection
[Specifications]： 8DI
[Communication Interfaces]：RJ45, RS485
[Operating Voltage]： DC 9～36V
[Installation Method]： Positioning hole, DIN rail mounting
[Size]：110*40*100mm
[Introduction]：
This high-performance distributed I/O host supports standard Modbus TCP and Modbus RTU protocols, suitable for data acquisition and control. The device is equipped with 10/100M adaptive dual Ethernet interfaces and supports switch functionality. The internal bus speed can reach up to 1ms. It features a reset function for both digital and analog outputs in case of network interruption, ensuring restoration to the preset state. The product casing is coated with a three-proof paint, providing anti-mildew, anti-moisture, and anti-salt spray functions.
Official Store| category | name | Specifications |
| power supply | Operating voltage | DC 9～36V; with reverse polarity protection |
| Power indicator | PWR red LED indicator | |
| Power consumption | 2～4W | |
| communication | Communication interface | RJ45*2 (dual network ports), RS485 |
| baud rate | 9600bps (optional) | |
| Communication Protocol | Standard Modbus TCP, Modbus RTU protocols | |
| Internal bus | Up to 1ms | |
| Modbus | Device address | Modification can be achieved via Modbus commands, host computer, and hardware DIP switches. |
| DI Input | Input type | NPN、PNP |
| Input range | DC 10～28V | |
| Isolation methods | Each channel is individually opto-isolated. | |
| Input impedance | 7.2kΩ | |
| sampling frequency | 1000 Hz | |
| Counting frequency | ＜500Hz | |
| Filtering time | Default time 6ms | |
| Input Instructions | DI green LED indicator | |
| AI input | Acquisition characteristics | Differential input |
| Input type | Differential current: 0-20mA, 4-20mA, ±20mA | |
| AI resolution | 16-bit (differential) | |
| AI accuracy | 1‰ (difference) | |
| refresh rate | Differential maximum 70Hz | |
| Input Instructions | AI Green LED Indicator | |
| Relay-type DO output | DO output type | Type A relay (normally open) |
| DO output mode | Level output, pulse output | |
| Relay contact capacity | 5A 30VDC, 5A 250VAC (maximum total current supported at the same COM common terminal is 8A) | |
| Output Indicator | DO green LED indicator | |
| Transistor-type DO output | DO output type | PNP type |
| DO output mode | Level output, pulse output | |
| Output capability | Supports output up to 0.5A per channel and 4A per COM port at voltages between 10 and 30V. | |
| other | Product Dimensions | 110mm * 40mm * 100mm (Length * Width * Height) |
| Operating temperature and humidity | -40 to +85℃, 5% to 95%RH (non-condensing) | |
| Storage temperature and humidity | -40 to +105℃, 5% to 95%RH (non-condensing) | |
| Installation method | Positioning holes and guide rail installation |