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Bus protocol based on TTCAN communication

A technology of bus protocol and position information, which is applied in the direction of bus network, data exchange through path configuration, digital transmission system, etc., can solve the problems of not being able to be applied well, affecting the time window, and poor anti-interference ability, so as to improve the Effects of bus utilization, protocol simplification, and interference avoidance

Inactive Publication Date: 2020-07-28
DONGGUAN QUANZHI CNC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in TTCAN, due to the scheduling result, several consecutive slots are exclusive windows, and the content of the sent command affects the size of the time window. special design to deal with; and its poor anti-interference ability makes it not well applied

Method used

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  • Bus protocol based on TTCAN communication
  • Bus protocol based on TTCAN communication
  • Bus protocol based on TTCAN communication

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] The present invention is based on the bus protocol of TTCAN communication, and this bus protocol adopts the TTCAN time trigger mode to communicate (default baud rate 1M), and the slave station (motor) sends the current position information of the motor to the master station every 10ms, and the format is as follows:

[0026] X X X X STATE CURRENT

[0027] Among them, each data packet includes 8 bytes, the first four bytes are the return value, the fifth byte is the status value, the sixth byte is the motor circuit level value, and the last two bytes are empty. X is the return value, indicating the...

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Abstract

The invention discloses a bus protocol based on TTCAN communication. According to the bus protocol, a TTCAN time triggering mode is adopted for communication; and a slave station sends current position information of a motor to a master station every 10ms, each data packet in the position information comprises eight bytes, the first four bytes are return values, the fifth byte is a state value, the sixth byte is a motor circuit grade value, and the last two bytes are null. According to the bus protocol, a TTCAN communication protocol is improved, the protocol is simplified, time windows can bereduced, communication loads are simplified, and the reliability and speed of load transmission are improved.

Description

technical field [0001] The invention belongs to the technical field of motor drive, in particular to a bus protocol for drivers based on the TTCAN communication standard. Background technique [0002] In the motor, there is usually a driver to drive the motor. In the traditional way, the driver and the motor are set separately, such as a voice-activated brushless DC motor driver disclosed in patent application 2013200373633, including a voice unit, a control unit, a display unit and Power supply module; the voice unit is electrically connected to the control unit signal; the display unit is electrically connected to the control unit signal; the power supply module provides operating power for the system; the voice unit includes a microphone, a filter circuit, a single-chip microcomputer, a power amplifier, a speaker and a keyboard; the control unit includes DSP, Overvoltage and overcurrent detection circuit, drive circuit, current detection circuit, Hall sensor and IGBT inve...

Claims

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Application Information

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IPC IPC(8): H04L12/40H04L12/403
CPCH04L12/40039H04L12/40045H04L12/4035H04L2012/40215
Inventor 夏辉
Owner DONGGUAN QUANZHI CNC TECH CO LTD
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