Lenze PM94P01C Manual de usuario descargar pdf (Pagina 41)

PM94P01C 39

Programming

2.7.2 Memory Access Through Special System Variables

MEM_INDEX holds the value that will be read or written to the RAM ﬁle. MEM_INDEX points to the position in the RAM

ﬁle (0 to 32767) and MEM_INDEX_INCREMENT holds the value that MEM_INDEX is going to modify after the read or

write operation is completed.

The RAM memory access is illustrated with the example program herein.

;---------------------------------------------------------------------------

;User’s program to read/write to RAM file.

;Advance index after writing/reading by 1

;Record position error to RAM file every 100 ms for 10 seconds. 10/0.1 = 100

;locations are needed

;---------------------------------------------------------------------------

#DEFINE IndexStart 0

#DEFINE MemIncrement 1

#DEFINE RecordLength 100

#DEFINE PElimit 0.1 ;0.1 user unit

VAR_MEM_INDEX = IndexStart ;set start position

VAR_MEM_INDEX_INCREMENT=MemIncrement ;set increment

;---------------------------------------------------------------------------

EVENT StorePE TIME 100

VAR_MEM_VALUE = VAR_POSERROR ;store in RAM file.

ENDEVENT

PROGRAMSTART:

EVENT StorePE ON

{

Start some motion activity….

}

;wait for data collection is over

WHILE VAR_MEM_INDEX < (IndexStart+RecordLength)

ENDWHILE

EVENT StorePE Off ;turn off storage

;Analyze data collected. If PE > PElimit then signal system has low performance…

VAR_MEM_INDEX= IndexStart

WHILE VAR_MEM_INDEX < (IndexStart+RecordLength)

IF (VAR_MEM_VALUE > PElimit)

GOTO Label_SignalBad

ENDIF

ENDWHILE

LabelSignalBad:

{

Signal that PE out of limits

…

}

END

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 133 134

Comentarios a estos manuales

Sin comentarios

Lenze PM94P01C Manual de usuario Pagina 41

Comentarios a estos manuales

Relacionado con productos y manuales para Hardware Lenze PM94P01C