Danfoss MCO 305 Design Manual page 136

MCO 305 Design Guide
ON PARAM .. GOSUB
Summary
Syntax
Parameter
Description
Priority
Command Group
Cross Index
Syntax Sample
ON PERIOD
Summary
Syntax
Parameter
Description
Command Group
Cross Index
136
__ Software Reference __
Call up a subprogram when a parameter is altered.
ON PARAM n GOSUB name
n = parameter number
name = subroutine name
The instruction ON PARAM can be used to respond when parameters are altered via
the LCP display and to call up a subprogram.
All parameters (32-xx, 33-xx) and all application parameters (19-xx) as well as
parameters of general interest (e.g. 8-02, 5-00) can be used.
NB!:
The subroutine to be called up must be defined within the SUBMAINPROG and
ENDPROG identified program.
A maximum of 10 ON PARAM functions are possible.
NB!:
During the execution of a subroutine called by an interrupt NOWAIT is automatically
set to ON.
If, during an interrupt subroutine, the same interrupt occurs (exception: error
interrupt), then it will be ignored and thus lost.
INT
SUBPROG..RETURN, DISABLE interrupts, ENABLE interrupts, Priorities of Interrupts,
NOWAIT
ON PARAM 32-67 GOSUB poserr
SUBMAINPROG
SUBPROG poserr
PRINT "New position error:
RETURN
Calls up a subroutine at regular intervals.
ON PERIOD n GOSUB name
n > 20 ms = time in ms, after which the subroutine is called up again
n = 0 = switch off the function
name = subprogram name
With ON PERIOD it is possible to call up a subprogram at regular intervals (time
triggered). ON PERIOD works like an interrupt. Is checked every 20 ms.
NB!:
– The precision with which the time is depends on the remaining program.
Typically the precision is 1 ms.
– The subroutine to be called up must be defined within the SUBMAINPROG and
ENDPROG identified program
– During the execution of an ON PERIOD subroutine NOWAIT is set to ON.
INT
ON TIME, GOSUB, DISABLE interrupts, ENABLE interrupts, Priorities of Interrupts,
NOWAIT
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// when position error is changed
", GET POSERR