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Modbus Data Concentrator with 1 x Ethernet and 4 x RS-232, 1 x RS-485
Bộ dữ liệu tập trung Modbus 4xRS-232 + 1xRS-485 + 1xEthernet ICP DAS MDC-741 CR
MDC-700 series is a Modbus Data Concentrator that has ability to perform up to 250 Modbus/RTU commands to read/write from/to Modbus slave devices via RS-232/485 and allows up to 8 Modbus/TCP masters to get the polled data via the Ethernet. MDC-700 series provide a built-in web server to ease the configuring and provide clear information for the performed results of each Modbus/RTU command on the RS-232/485.
Modbus Data Concentrator
The MDC performs the pre-defined Modbus/RTU commands to read/write data from/to the Modbus/ RTU slave devices via the RS-232/485. It mirrors the data of the slave devices to its own shared memory. And it accepts up to 8 Modbus/TCP masters to directly read/write data form/to the shared memory instead of polling each Modbus/RTU slave device one by one. This way not only makes the data on the RS-232/485 sharable to multiple Modbus/TCP master but also shorten the time to read/write data from/to multiple Modbus/RTU slave devices.
Great Capability of Shared Memory
The MDC can perform up to 250 polling definitions. And the internal shared memory has four tables to store the polled AI, AO, DI and DO data. Each table can store up to 9600 registers.
Config.CSV to Ease Hard Work of Editing a lot of Definition
The Modbus polling definition is defined in a Config.CSV file. Editing/checking a lot of polling definitions is a hard work and may have chance to make a mistake. A CSV format file can ease the work by using Excel. Furthermore, the built-in web server allows users import/export the Config.CSV via a simple mouse-click action.
Web Sever to Ease the Operating and Show Clear Information
The IP address, configuration file, Config.CSV can be simply configured via the Web server. And the performed results of all Modbus polling definition are shown on the web page. It is very easy to debug which Modbus/RTU device has communication problem. And the MDC firmware will skip the abnormal Modbus polling definition for a while to smoothly perform the whole polling without distribution.
|5 x Digit 7 Segment LED Display
|1 x System, to display heart beat
|4 x 5-wire RS-232
1 x 2-wire RS-485
|1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200
|N81, E81, O81
|Modbus RTU Master/Modbus RTU Slave
|250 definitions for all RS-232/485 ports
|9600 registers for each of AI, AO, DI and DO data
|x1, 10/100 Base-TX
|+10 VDC ~ +30 VDC (non-regulated)
|102 mm x 125 mm x 28 mm (W x H x D)
|-25 ~ +75 °C
|-30 ~ +80 °C
|10 ~ 90% RH, non-condensing
|Modbus Data Concentrator with 1 x Ethernet and 4 x RS-232, 1 x RS-485 (RoHS)