Technical Support
Program a Telemetry Alarm
The RFC-1/B can respond to telemetry conditions using alarms. This requires setting both the alarm conditions and an action sequence.
Action Sequence
An action sequence is a series of instructions stored in memory to perform a task. It has no information about when the task occurs.
- An action sequence is a stored set of instructions that perform a task
- An action sequence is triggered by an alarm or a date/time trigger
- The system stores stores eight action sequences
Action sequences can operate control relays, print readings, etc. A typical action sequence to turn on a transmitter is activate a relay, pause several seconds, then activate another relay.
The RFC-1 can store eight action sequences. Each sequence can have eight steps. Steps are performed in order and the sequence terminates at the first blank step.
Action sequence 1 is used by the alarms in the factory settings. It calls the telephone numbers with the alarm message. All other action sequences are empty/unused by default.
Alarm Conditions
The alarm consists of the upper and lower limits and a trigger rule. Upper and lower limits set the tolerance for the channel. The trigger rule determines how the system uses the limits to determine when an alarm occurs.
- Alarm limits are determined by the device that is monitored
- When an alarm occurs it triggers an action sequence
- The system stores eight alarms
Some trigger rules ignore the limits and look for the reading to change by a certain percentage. These rules are useful for stations that operate at multiple power levels.
Alarm Limits
Alarms limits do not use decimal points and they always use four significant digits. See the links section of this page if you need help determining alarm limits for a channel.
Blocking an Alarm
Alarms can be blocked so that they do not operate during specified hours. See the links section of this page for a page that can assist with alarm block programming if you need help blocking an alarm.
Instructions
Use the selections below to setup an alarm. All items must be completed.
The values and adresses will be calculated and displayed. Click the "Show Instructions" button to display step-by-step programming instructions.