MQ-7251M/MQ-7253M
MQTT I/O Module with 16-ch DI |
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| ~ NEW ~ |
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| Model: MQ-7251M |
Model: MQ-7253M |
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- 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
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The MQ-7251M and MQ-7253M are Ethernet I/O devices equipped with 16-channel DI, as well as the MQTT protocol is supported for connecting with a variety of digital sensors in Industrial Internet of Things (IIoT) applications. A friendly web-based user interface is provided for users to configure module, access the network connection status and I/O status via a normal web browser on a mobile device or computer.
The MQ-7251M and MQ-7253M feature optical isolation for 2500 VDC of transient overvoltage protection but do not provide channel-to-channel isolation. It can safely be used in applications where hazardous voltages are present. |
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| Model |
MQ-7251M |
MQ-7253M |
| Digital Input |
| Channels |
16 |
| Contact |
Wet |
Dry |
| Sink/Source (NPN/PNP) |
Sink, Source |
Source |
| Wet Contact |
On Voltage Level |
+10 VDC ~ +50 VDC |
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| Off Voltage Level |
+4 VDC Max. |
| Input Impedance |
10 kΩ |
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| Overvoltage Protection |
+70 VDC |
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| Dry Contact |
On Voltage Level |
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Close to GND |
| Off Voltage Level |
Open |
| Effective Distance |
- |
500 M Max. |
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| Model |
MQ-7251M |
MQ-7253M |
| 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 |
| Power |
| Reverse Polarity Protection |
Yes |
| Powered from Terminal Block |
12 ~ 48 VDC |
| Consumption |
2.9 W Max. |
3.7 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 |
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| MQ-7251M CR |
MQTT I/O Module with 2-port Ethernet Switch, with 16-ch DI (RoHS) |
| MQ-7253M CR |
MQTT I/O Module with 2-port Ethernet Switch, with 16-ch DI (RoHS) |
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