This post represents an excerpt of Thomson Electrac HD Linear Actuator Motion Control per CAN Bus. The application note is available in eBook and Kindle format, and it includes a free downloadable source code. More Information...
In this post, I am explaining the Actuator Control Message (ACM) and Actuator Feedback Message (AFM).
Thomson Electrac Linear Actuator - ACM Design
The ACM data frame (PGN) controls:
- Position Command
- Current Limit
- Speed Command
- Motion Enable Signal
The architecture of the ACM message and its parameters is explained adequately in the user manual.
Reference: Page 24, “5.2.4 SAE J1939 actuator control message (ACM)” in the user manual.
The programming/coding of the actuator control message (ACM) is demonstrated in chapter Building the Actuator Control Message (ACM).
Thomson Electrac Linear Actuator - AFM Interpretation
In turn, the actuator provides feedback per AFM such as:
- Measured Position
- Measured Current
- Running Speed
- Voltage Error
- Temperature Error
- And more...
The architecture of the AFM message and its parameters is explained adequately in the user manual.
The programming/coding of the actuator feedback message (AFM) is demonstrated in chapter Handling the Actuator Feedback Message (AFM).
Arduino-Based ECU Development Board With Dual CAN Bus Interface
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