@ingroup util_crc16 Processor-independent CRC-16 calculation. Polynomial: x^16 + x^15 + x^2 + 1 (0xA001)<br> Initial value: 0xFFFF T

@ingroup util_word Return high word of a 32-bit integer. @param uint32_t ww (0x00000000..0xFFFFFFFF) @return high word of input (0x0000..

@ingroup util_word Return low word of a 32-bit integer. @param uint32_t ww (0x00000000..0xFFFFFFFF) @return low word of input (0x0000..0x

_____PUBLIC FUNCTIONS_____________________________________________________ */ Constructor. Creates class object; initialize it using ModbusMaster::be

_____PRIVATE FUNCTIONS____________________________________________________ */ Modbus transaction engine. Sequence: - assemble Modbus Request Applica

Initialize class object. Assigns the Modbus slave ID and serial port. Call once class has been instantiated, typically within setup(). @param slave

Clear Modbus response buffer. @see ModbusMaster::getResponseBuffer(uint8_t u8Index) @ingroup buffer */

Clear Modbus transmit buffer. @see ModbusMaster::setTransmitBuffer(uint8_t u8Index, uint16_t u16Value) @ingroup buffer */

Retrieve data from response buffer. @see ModbusMaster::clearResponseBuffer() @param u8Index index of response buffer array (0x00..0x3F) @return value

Set idle time callback function (cooperative multitasking). This function gets called in the idle time between transmission of data and response from

Modbus function 0x16 Mask Write Register. This function code is used to modify the contents of a specified holding register using a combination of a

Set post-transmission callback function. This function gets called after a Modbus message has finished sending (i.e. after all data has been physical

Set pre-transmission callback function. This function gets called just before a Modbus message is sent over serial. Typical usage of this callback is

Modbus function 0x01 Read Coils. This function code is used to read from 1 to 2000 contiguous status of coils in a remote device. The request specif

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

Modbus function 0x03 Read Holding Registers. This function code is used to read the contents of a contiguous block of holding registers in a remote

Modbus function 0x04 Read Input Registers. This function code is used to read from 1 to 125 contiguous input registers in a remote device. The reque

Modbus function 0x17 Read Write Multiple Registers. This function code performs a combination of one read operation and one write operation in a sin

eliminate this function in favor of using existing MB request functions

Place data in transmit buffer. @see ModbusMaster::clearTransmitBuffer() @param u8Index index of transmit buffer array (0x00..0x3F) @param u16Value va

Modbus function 0x0F Write Multiple Coils. This function code is used to force each coil in a sequence of coils to either ON or OFF in a remote devi

Modbus function 0x10 Write Multiple Registers. This function code is used to write a block of contiguous registers (1 to 123 registers) in a remote

Modbus function 0x05 Write Single Coil. This function code is used to write a single output to either ON or OFF in a remote device. The requested ON

Modbus function 0x06 Write Single Register. This function code is used to write a single holding register in a remote device. The request specifies