Method readDiscreteInputs

src/ModbusMaster.cpp:352–358

Modbus function 0x02 Read Discrete Inputs. This function code is used to read from 1 to 2000 contiguous status of discrete inputs in a remote device. The request specifies the starting address, i.e. the address of the first input specified, and the number of inputs. Discrete inputs are addressed starting at zero. The discrete inputs in the response buffer are packed as one input per bit of t

@ingroup discrete
*/
uint8_t ModbusMaster::readDiscreteInputs(uint16_t u16ReadAddress,
  uint16_t u16BitQty)
{
  _u16ReadAddress = u16ReadAddress;
  _u16ReadQty = u16BitQty;
  return ModbusMasterTransaction(ku8MBReadDiscreteInputs);
}


/**