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Describes how to configure data coming from the Modbus master.

Configure Modbus Tags

Modbus TCP is used for communicating both incoming and outgoing data. In the Modbus Masters section, you can configure data coming from the Modbus master. In the screen below, the generators Reactive Load level is being fed to the RFMS from the Modbus Master through register 100.


Complete these steps:

  1. On the Host app screen, click the Settings button, then click the System tab.

  2. In the System Name field, enter the name of the RFMS.

  3. In the Modbus Slave Port field, enter the value provided by the plant, per their Modbus addressing schema.

  4. In Address and Port fields, enter the IP address and port for the incoming data.

  5. In the Tag Name field, enter a descriptive name for the type of data coming into the RFMS, such as Reactive Load.

  6. In the Register field, enter the Modbus register number. See Modbus Registers for a list of registers.

  7. In the Data Type field, select the type of data in the register.

  8. Click OK to close the Settings dialog.

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Modbus Registers

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