Changes

==Installing the necessary software==

==Installing the necessary software==

Next you'll need software capable of communicating via Modbus TCP. The software that we'll be using for this guide is called '''modbus-cli'''. To get it you'll first have to install '''ruby''':

Next you'll need software capable of communicating via Modbus TCP. The software that we'll be using for this guide is called '''modbus-cli'''. To get it you'll first have to install '''ruby'''. To do so, open the '''Terminal''' app and enter these commands.

  $ sudo apt-get install ruby

  $ sudo apt-get install ruby

===modbus read===

===modbus read===

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To obtain parameters from the system, the '''modbus read''' command is used.

To obtain parameters from the system, the '''modbus read''' command is used. The syntax for this command is: