Phonetics 5100, 5000 manual Common Isacc Programming Errors

Sensaphone® ISACC Instruction Manual

COMMON ISACC PROGRAMMING ERRORS

As you develop ISACC programs, you may find that your programs do not work as you in- tended. The following programs show common programming errors.

1. Program does not turn on the buzzer

main()

{

output(9,1);

}

Usually, this is because the output needs to be set on AUTO. Use keyword command SET OUTPUT 9, and set it for AUTO in the standard programming parameters.

2.The following program causes ISACC to continue calling out for power outage even after the alarm has been acknowledged:

main()

{

if (input(20)==0)

{

alarm(1);

}

}

This is because the ALARM function will generate a new alarm regardless of whether it has been acknowledged. A flag is needed to determine if there is a new power outage:

int was_alm; main()

{

if ((input(20)==0)&&(was_alm==0)) /*Only if new power outage*/

{
was_alm=1;
alarm(1);
}
if (input(20)==1)	/*Power back on*/
{
was_alm=0;	/*Allow alarming*/
}
}

If you have unused inputs available, a more straight forward method would be to use the

SET_INPUT function (see Function Library section). Assume input 16 is unused. First set its ITYPE to USER DEFINED (see ITYPE section). Then set its HIGH and LOW limits to 120 and 90, respectively. Next, set the Dialout Selection for this input. Finally, enter the following program:

main()

{

set_input(16,(110*input(20)));

}

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