mm::comm::SlaveIo Struct Reference

One slave's input and output windows within the process-data images. More...

#include <fieldbus_driver.h>

Public Attributes
uint16_t	slavePosition = 0
	1-based bus position.
uint32_t	outputOffset = 0
	Byte offset of this slave's outputs within the output image.
uint32_t	outputBytes = 0
	Output byte count for this slave.
uint32_t	inputOffset = 0
	Byte offset of this slave's inputs within the input image.
uint32_t	inputBytes = 0
	Input byte count for this slave.

Detailed Description

One slave's input and output windows within the process-data images.

outputOffset is relative to the start of the output image; inputOffset is relative to the start of the input image (the two images are exchanged separately — see exchangeProcessData). A direction with fewer than 8 mapped bits reports a byte count of 0 and an offset of 0.

Member Data Documentation

inputBytes

uint32_t mm::comm::SlaveIo::inputBytes = 0

Input byte count for this slave.

inputOffset

uint32_t mm::comm::SlaveIo::inputOffset = 0

Byte offset of this slave's inputs within the input image.

outputBytes

uint32_t mm::comm::SlaveIo::outputBytes = 0

Output byte count for this slave.

outputOffset

uint32_t mm::comm::SlaveIo::outputOffset = 0

Byte offset of this slave's outputs within the output image.

slavePosition

uint16_t mm::comm::SlaveIo::slavePosition = 0

1-based bus position.

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The documentation for this struct was generated from the following file:

• libs/comm/fieldbus_driver.h