Basic Characteristics RAPID

ITimer Orders a timed interrupt
Examples
Arguments
ITimer (Interrupt Timer) is used to order and enable a timed interrupt.
This instruction can be used, for example, to check the status of peripheral equipment
once every minute.
VAR intnum timeint;
CONNECT timeint WITH iroutine1;
ITimer 60, timeint;
Orders an interrupt that is to occur cyclically every 60 seconds. A call is then
made to the trap routine iroutine1.
ITimer \Single, 60, timeint;
Orders an interrupt that is to occur once, after 60 seconds.
ITimer [ \Single ] Time Interrupt
[ \Single ] Data type: switch
Specifies whether the interrupt is to occur once or cyclically.
If the argument Single is set, the interrupt occurs only once. If the argument is
omitted, an interrupt will occur each time at the specified time.
Time Data type: num
The amount of time that must lapse before the interrupt occurs.
The value is specified in seconds. If Single is set, this time may not be less than
0.1 seconds. The corresponding time for cyclical interrupts is 0.5 seconds.
Interrupt Data type: intnum
Program execution
The variable (interrupt identity) of the interrupt. This should have previously
been connected to a trap routine by means of the instruction CONNECT.
The corresponding trap routine is automatically called at a given time following the
interrupt order. When this has been executed, program execution continues from where
the interrupt occurred.
RAPID Reference Manual 8-ITimer-1