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Data Acquisition Gateway IDM-7842DAG/IDM-6830 implementation

Introduction

Data acquisition gateway (DAG Gateway) IDM-6832 and IDM-7842DAG are used in the conversion between Modbus RTU protocol data and Modbus TCP protocol data. The serial port supports Modbus RTU master station and slave station function, and Ethernet terminal supports Modbus TCP slave function.

When the serial port is the Modbus RTU master station, it can actively collect the data of the user's Modbus RTU slave station and store it in the internal data buffer. The user's Modbus TCP master station can read or write the data buffer through the Ethernet port, so as to realize the function of data exchange between Modbus TCP master station and Modbus RTU slave station.

When the serial port is a Modbus RTU slave, the user's Modbus RTU master station can read or write the data buffer through the serial port, and the Modbus TCP master can also read or write the data buffer through the Ethernet port, so as to realize the data exchange function between the Modbus TCP master station and the Modbus RTU master station.

Users can edit serial port settings, Ethernet port settings, operation modes and Modbus RTU instructions through DAG configuration tool, and download them to DAG gateway through Ethernet port. The existing interface settings and Modbus RTU instructions in DAG gateway can also be uploaded to DAG configuration tool through Ethernet port. Users can save these interface settings and Modbus RTU instructions into files for use by other DAG gateway devices.

IDM-6830/IDM-7842DAG supports standard Modbus protocol and can communicate directly with configuration software, PLC, DCS and industrial touch screen.

Functional features

1. Modbus register address mapping, fast response of Modbus TCP request.

2. User defined Modbus RTU instructions, programmable.

3. The scan rate, response timeout and slave response delay can be set.

4. Two serial ports can be used as master station or slave station of Modbus RTU at the same time.

5. Up to five Modbus TCP masters access the DAG gateway.

6. The interface settings and Modbus RTU instructions can be saved to a file, reducing the user configuration time.

7. Equipped with windows configuration tool software, UI friendly, easy to operate.

8. The fault diagnosis function can monitor the communication status of the user's slave station in real time and quickly check the fault.

9. Redundant DC9 ~ 36V dual power input, low power consumption.

10. Industrial grade design, suitable for harsh environment.

Application scheme diagram

DAGConfiguration tool software

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