Rockwell-automation SA500 Drive Configuration and Programming Manuale Utente Scaricare il pdf (Pagina 96)

4-10

SA500 Drive Configuration and Programming

Figure 4.3 – Data/Time Flow for UDC Module and PMI

(Background)

(Foreground)

PMI

Processor

UDC

Module

AutoMax

Processor

AutoMax task writes new

values to control command and

application registers in UDC

dual port memory

Diagnostics, Communication, Management, etc.

Vector

Assumptions:

1. The UDC task(s) have been put into run before the vector control algorithm is turned on.

*Communication of command and feedback registers between the UDC and PMI synchronized UDC tasks and PMI

control algorithms are not synchronized. The vector control algorithm runs, on the average, every 1 msec.

10 msec.

(20 ticks)

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Rockwell-automation SA500 Drive Configuration and Programming Manuale Utente Pagina 96