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.
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
- DI: 8 Channels
- DO: 8 Channels
| CPU Module |
| Watchdog Timer |
Yes, Module (0.8 seconds), Communication (Configurable) |
| EMS Protection |
| EFT (IEC 61000-4-4) |
+4 kV for Power Line |
| ESD (IEC 61000-4-2) |
+4 kV Contact for Each Terminal and +8 kV Air for Random Point |
| Software |
| Built-in Web Server |
Yes |
| Digital Input |
| Channels |
8 |
| Type |
Wet |
| Sink/Source (NPN/PNP) |
Sink, Source |
| Wet Contact, ON Voltage Level |
+10 VDC ~ +50 VDC |
| Wet Contact, OFF Voltage Level |
+4 VDC Max. |
| Input Impedance |
10 k? |
| Overvoltage Protection |
+70 VDC |
| Digital Output |
| Channels |
8 |
| Type |
Isolated Open Collector |
| Sink/Source (NPN/PNP) |
Sink |
| Load Voltage |
+ 3.5 VDC ~ + 50 VDC |
| Max. Load Current |
650 mA/channel at 25°C
Direct Drive Power Relay Module |
| Overvoltage Protection |
60 VDC |
| Overload Protection |
1.4 A |
| Short-Circuit Protection |
Yes |
| Power on Value |
Yes , Configurable |
| Safe Value |
Yes , Configurable |
| Ethernet |
| Ports |
2 x RJ-45, 10/100 Base-TX, Switch Ports |
| Protocol |
MQTT 3.1.1 |
| Isolation |
1500 VDC |
| Power |
| Reverse Polarity Protection |
Yes |
| Consumption |
3.3 W Max. |
| Powered from Terminal Block |
12 ~ 48 VDC |
| Mechanical |
| Casing |
Metal |
| Dimensions (mm) |
120 mm x 97 mm x 42 mm (L x W x H) |
| Installation |
Wall Mounting |
| Environmental |
| Operating Temperature |
-25 ~ +75 °C |
| Storage Temperature |
-30 ~ +80 °C |
| Humidity |
10 ~ 90% RH, non-condensing |
