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Gateway Mode

The iSMA-B-AAC20 controller can work as a Modbus TCP/RS485 gateway. By default,  this option is enabled until there is no ModbusAsyncNetwork component in the Sedona application or the component is disabled (ModbusAsyncNetwork -> Enable slot in the false state).

The RS485 communication parameters can be set up by:

  • Controller configuration Web Page (RS485 Configuration tab);
  • ModbusAsyncNetwork component (remember to set false in the Enable slot);
  • Controller Modbus register table (see the iSMA-B-AAC20 Modbus table chapter).

Modbus TCP gateway topology
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