Master or slave: the Modbus RTU communication module
Eaton introduces the Modbus RTU module to complement the range of communication options for the easyE4 control relay, allowing the mini-PLC to be used as both a master and slave unit.
Client and server functionality
The new Modbus RTU module for the easyE4 offers yet another option for flexibly integrating the control relay into different communication structures: In addition to an easyNet interface, via the programming port, the basic device offers Modbus TCP client and server functionality. This means that the integrated Modbus TCP interface can also be used when a Modbus RTU module is connected in parallel. As a result, the easyE4 can easily collect data from field-level measurement devices using the Modbus RTU and transmit the data to higher-level control solutions via Modbus TCP.
Master or slave
The Modbus RTU communication module and the network are configured with the programming software easySoft 7 from version 7.40 onward. This also sets up the mini-PLC as a Modbus RTU master or slave. When set as a master, the easyE4 has access to the process data, status information and parameter settings of the connected Modbus RTU modules. Data acquisition and programming can be performed independent of brand, which means that third-party Modbus RTU devices can also be integrated.
Uniform appearance
The communication module is easily installed via a special connector on the left side of the easyE4 base unit. With a width of only 2 HP (35 mm), its dimensions are similar to those of the other slim easyE4 expansion modules. This makes control panel design simpler and more compact and ensures a uniform appearance. If necessary, additional expansion modules can also be connected to the right side of the base unit.
Download the brochure for all product information including part numbers.
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