Module Ethernet MQTT 8 kênh đầu vào số (DI) + 8 kênh đầu ra số (DO) ICP DAS MQ-7252M
Features
- Built-in Web Server
- Web HMI
- Support for MQTT Protocol
- 2-port Ethernet Switch for Daisy-Chain Topology
- Dual Watchdog
- Wide Operating Temperature Range: -25 ~ +75°C
- Built-in I/O
- DI: 8 Channels
- DO: 8 Channels
Introduction
The MQ-7244M, MQ-7252M and MQ-7255M are Ethernet I/O devices equipped with 8-channel DI and 8-channel DO, as well as the MQTT protocol is supported for connecting with a variety of digital sensors in Industrial Internet of Things (IIoT) applications. A web-based user interface is provided to configure module, monitor the network connection status and I/O status, and control DO lines on the module via a normal web browser on a mobile device or computer.
The MQ-7244M, MQ-7252M and MQ-7255M feature optical isolation for 2500 VDC of transient overvoltage protection but do not provide channel-to-channel isolation. Each output channel can drive up to 650 mA load, together with configurable power-on value and safe value. The MQ-7200M module can safely be used in applications where hazardous voltages are present.
I/O specifications
| Model | MQ-7244M | MQ-7252M | MQ-7255M | |
| Digital Input | ||||
| Channels | 8 | |||
| Contact | Wet | Wet | Dry, Wet | |
| Sink/Source (NPN/PNP) | Sink, Source | Dry: Source Wet: Sink, Source |
||
| Wet Contact | On Voltage Level | +10 VDC ~ +50 VDC | ||
| Off Voltage Level | +4 VDC Max. | |||
| Input Impedance | 10 kΩ | |||
| Overvoltage Protection | +70 VDC | |||
| Dry Contact | On Voltage Level | – | – | Close to GND |
| Off Voltage Level | Open | |||
| Effective Distance | – | – | 500 M Max. | |
| Digital Output | ||||
| Channels | 8 | |||
| Type | Isolated Open Collector | |||
| Sink/Source (NPN/PNP) | Sink | Source | ||
| Max. Load Current | 650 mA/channel at 25°C Direct Drive Power Relay Module |
650 mA/channel at 25°C | ||
| Load Voltage | +3.5 VDC~ +50 VDC | +10 VDC~ +40 VDC | ||
| Overvoltage Protection | 60 VDC | 47 VDC | ||
| Overload Protection | 1.4 A | – | ||
| Short-circuit Protection | Yes | |||
| Power-on Value | Yes , Configurable | |||
| Safe Value | Yes , Configurable | |||
System specifications
| Model | MQ-7244M | MQ-7252M | MQ-7255M |
| Software | |||
| Built-in Web Server | Yes | ||
| Web HMI | Yes | ||
| Communication | |||
| Ethernet Port | 2 x RJ-45, 10/100 Base-TX, Switch Ports | ||
| Protocol | MQTT 3.1.1 | ||
| Dual Watchdog | Yes, Module (0.8 seconds), Communication (Configurable) | ||
| PoE | – | ||
| LED Indicators | |||
| for System Running | Yes | ||
| for Ethernet Link/Act | Yes | ||
| for DI/DO Status | Yes | ||
| 2-Way Isolation | |||
| Ethernet | 1500 VDC | ||
| I/O | 2500 VDC | ||
| EMS Protection | |||
| ESD (IEC 61000-4-2) | ±4 kV Contact for Each Terminal and ±8 kV Air for Random Point | ||
| EFT (IEC 61000-4-4) | ±4 kV for Power Line | ±2 kV for Power Line | |
| Surge (IEC 61000-4-5) | – | ±2 kV for Power Line | |
| Power | |||
| Reverse Polarity Protection | Yes | ||
| Powered from Terminal Block | 12 ~ 48 VDC | ||
| Consumption | 3.3 W Max. | 3.4 W Max. | 3.9 W Max. |
| Mechanical | |||
| Dimensions (L x W x H) | 120 mm x 97 mm x 42 mm | ||
| Housing | Metal | ||
| Installation | Wall Mounting | ||
| Environmental | |||
| Operating Temperature | -25 ~ +75°C | ||
| Storage Temperature | -30 ~ +80°C | ||
| Humidity | 10 ~ 90% RH, non-condensing | ||
Ordering Information
| MQ-7244M CR | MQTT I/O Module with 2-port Ethernet Switch, with 8-ch DI and 8-ch DO (RoHS) |
| MQ-7252M CR | MQTT I/O Module with 2-port Ethernet Switch, with 8-ch DI and 8-ch DO (RoHS) |
| MQ-7255M CR | MQTT I/O Module with 2-port Ethernet Switch, with 8-ch DI and 8-ch DO (RoHS) |