RFC-1 Programming Examples page 7.5
7.5 Alarm Limits—Analog Channel
In this example we will program Alarm A to monitor telemetry channel 03 with an upper limit of 105.0 and a lower limit
of 090.0 and place a series of alarm calls if either limit is exceeded. The normal reading on this channel is
approximately 100.0.
In this example, we will use the fixed, factory programmed action sequence 9. It is programmed to call all
programmed telephone numbers in sequence. When programming alarm limits, ignore the decimal point and enter
four significant digits. If a channel reading does not have four digits, pad the left side of the number with zeros until
the reading is four digits long. This is the channel reading to use for setting the alarm limits.
1. Enter the advanced programming mode: 80
2. Enter the advanced programming security code: 4150
3. Enter the starting address from the address table for alarm A: 0852
4. Enter the first digit of the telemetry channel to be monitored: 0
5. Press the # key to write this value and increment to the next address in memory
6. Enter the second digit of the telemetry channel to be monitored: 3
7. Press the # key to write this value and increment to the next address in memory
8. From Section 6, enter the number of the trigger rule: 5 (upper or lower limit crossing)
9. Press the # key to enter this value and increment to the next address in memory
10. Enter the number of the Action Sequence that should be triggered: 9 (place telephone calls)
11. Press the # key to enter this value and increment to the next address in memory
12. Enter the first digit of the upper limit: 1
13. Press the # key to write this value and increment to the next address in memory
14. Enter the second digit of the upper limit: 0
15. Press the # key to write this value and increment to the next address in memory
16. Enter the third digit of the upper limit: 5
17. Press the # key to write this value and increment to the next address in memory
18. Enter the fourth digit of the upper limit: 0
19. Press the # key to write this value and increment to the next address in memory
20. Enter the first digit of the lower limit: 0
21. Press the # key to write this value and increment to the next address in memory
22. Enter the second digit of the lower limit: 9
23. Press the # key to write this value and increment to the next address in memory
24. Enter the third digit of the lower limit: 0
25. Press the # key to write this value and increment to the next address in memory
26. Enter the fourth digit of the lower limit: 0
27. Press the # key to write this value and increment to the next address in memory
28. Press the ❊ key to exit the programming mode
Alarms A-H in the RFC-1 can be reprogrammed using the basic programming commands 90-97 respectively. Only
the channel number and limits can be changed with the basic programming commands. Changing the trigger rule
and action sequence require using the advanced programming mode.
In the factory default settings, all alarms trigger action sequence 9, which is programmed to call all available
telephone numbers. In later examples we will program telephone numbers to complete the alarm setup.
There is a master on/off switch for the telemetry alarm system. Adjust this setting with the command 82. A value of 0
disables all telemetry alarms and the value 1 enables the telemetry alarms.
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