| Share On: | |
|---|---|
| Categories: | MQTT Data Acquisition |
| Review: | Write your review |
| Resources: |
The MQ-7251M is an Ethernet I/O module designed with 2-port Ethernet Switch and has 16-channel DI and is communicable over MQTT protocol. The MQTT protocol allows connectivity with various Industrial Internet of Things (IIoT) applications. The MQ-7251M is designed with a user-friendly, web-based interface that provides 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-7244Mis equipped with optical isolation for 2500 VDC of transient overvoltage protection but do not provide channel-to-channel isolation. This module is designed to be safely used in applications where hazardous voltages are present.
Digital Input
Channels
16
Contact
Wet
Sink/Source (NPN/PNP)
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
-
Off Voltage Level
-
Effective Distance
-
Digital Output
Channels
8
Type
Isolated Open Collector
Sink/Source (NPN/PNP)
Sink
Max. Load Current
650 mA/channel at 25°C Direct Drive Power Relay Module
Load Voltage
+3.5 VDC~ +50 VDC
Overvoltage Protection
60 VDC
Overload Protection
1.4 A
Short-circuit Protection
Yes
Power-on Value
Yes , Configurable
Safe Value
Yes , Configurable
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.
Mechanical
Dimensions (L x W x H)
120 mm x 97 mm x 42 mm
Housing
Metal
Installation
Wall Mounting
Environmental
Operating Temperature
-25°C ~ +75°C
Storage Temperature
-30 ~ +80°C
Humidity
10 ~ 90% RH, non-condensing
Our mission is to provide the absolute best customer experience in industrial automation and electronics, without exception.
Subscribe to our mailing list today and join thousands of others who want to stay up-to-date with the latest news in data acquisition and industrial data communication.
ICP DAS USA is a leading manufacturer of industrial data acquisition, data communication, programmable controllers, wireless and software solutions.
Quick Start
Add a review
Your email address will not be published. Required fields are marked *