SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
The EtherCAT Processing Unit (EPU) receives, analyzes, and processes the EtherCAT data stream. The EPU is logically located between port 0 and port 1. The main purpose of the EPU is to enable and coordinate access to the internal registers and the memory space of the ESC, which can be addressed both from the EtherCAT MainDevice and from the local application by way of the Processor Data Interface (PDI). Data exchange between the MainDevice and SubordinateDevice application is comparable to a dual-ported memory (process memory), enhanced by special functions; for example, for consistency checking (SyncManager) and data mapping (FMMU). The EPU contains the main function blocks of the EtherCAT SubordinateDevices besides Auto-Forwarding, Loop-back function, and PDI.