Greeting group. I have used a Silicon Chip SMS controller with an alarm system controlled by a time switch.
I programmed the system to send "ALARMON" when the alarm is turned on at 9pm, and "ALARMOFF" when the system turns off at 7am, this was done to test the system for a couple of days only.
When the alarm is triggered, "ALARM" would be sent.
A couple of days after installing the system, I sent "DISALARMON" and "DISALARMOFF" to prevent the messages being sent.
After doing this, "ALARM" was no longer being sent when the alarm system was triggered.
I found that I could again cause "ALARM" to be sent after I sent "ENALARM".
Sending "DISALARMON" again caused the system to stop sending "ALARM".
I have now rewired the controller to stop "ALARMON" and "ALARMOFF" being sent. Can anyone offer a possible cause for this.
Russell.