SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
The EtherCAT State Machine (ESM) is responsible for the coordination of the MainDevice and SubordinateDevice applications at start up and during operation. State changes are typically initiated by requests from the MainDevice. The state changes are acknowledged by the local application after the associated operations have been executed. Unsolicited state changes of the local application are also possible.
There are four states (see Figure 26-6) an ESC can support, plus one optional state: