Lenze PM94P01C - Manual (Page 49)

PM94P01C 47
Programming
Scanned events may also be used with a timer to perform an action on the periodic time basis.
The program statements contained in the action portion of the scanned event can be any legal program statement except
the following statements: Subroutine calls (GOSUB), DO/WHILE, WHILE, WAIT, GOTO and also motion commands:
MOVED,MOVEP, MDV, STOP, MOTION SUSPEND/RESUME.
EVENT INPUT RISE
This scanned event statement is used to execute a block of code each time a specified input changes its
state from low to high.
EVENT INPUT FALL
This scanned event statement is used to execute a block of code each time a specified input changes its
state from high to low.
EVENT TIME
This scanned event statement is used to execute a block of code with a repetition rate specified by the
argument. The range for “timeout” is 0 - 50,000ms (milliseconds). Specifying a timeout period of 0 ms will result in the
event running every event cycle (256ms).
EVENT expression
This scanned event statement is used to execute a block of code when the expression evaluates as true.
EVENT ON/OFF
This statement is used to enable/disable a scanned event. Statement can be used within event’s block of code.
Scanned Event Statements Summary
Table 15 contains a summary of instructions that relate to scanned events. Refer to Section 3 “Language Reference”
for more detailed information.
Table 15: Scanned Events Instructions
Name Description
EVENT ON/OFF enable / disable event
EVENT INPUT RISE Scanned event when goes low to high
EVENT INPUT FALL Scanned event when goes high to low
EVENT TIME Periodic event with repetition rate.
EVENT expression Scanned event on expression = true