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The ModbusAsyncBooleanWritable is a component responsible for sending and reading Boolean values from the device. The component has to be placed under the ModbusAsyncDevice component.

The ModbusAsyncBooleanWritable component

The ModbusAsyncBooleanWritable component has the following slots:

  • Status: shows the point’s status;
  • Fault Cause: shows the fault cause description;
  • Fault Status: informs about the point’ error status (true: point read/write error);
  • Enable: enables or disabled the point (true: point enabled, false: point disabled);
  • Address Format: allows to set the register address format (Modbus, decimal);
  • Address: allows to set the register address;
  • Poll Frequency: allows to set the reading poll frequency (fast, normal, slow);
  • Write Type: allows to set the writing mode (COV: only on input change, COV_PollFequrency: on input change and periodically, PollFequrency: only periodically, COV_LinkSet: only on input change using the "reverse following the link" function);
  • Trigger: allows to trigger the remote enforcement of sending (on rising edge);
  • Out: the output slot, the current value of read/write registry;
  • In: the input slot.

The ModbusAsyncBooleanWritable component offers the following actions, available in the context menu:

  • Set True/Set False: writes a value to the In slot and sends it to the device (not active if the In slot has a link connected);
  • Write: sends the value from In slot to the device;
  • Send Value: sends the user value from the pop-up window, without changing the In slot;
  • Read: reads the value from the device and sends it to the Out slot.
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