RFC-1 Advanced Operation page 6.15
6.5 Action Sequences
Functional knowledge of the specific installation is required to make use of the information presented here. In
addition, some degree of comfort working with the RFC-1 is presumed in the documentation that follows.
The RFC-1 can be programmed to respond to telemetry conditions or the time and date. These automatic functions
rely on action sequences—series of instructions stored in memory to perform a specific task or set of tasks. Action
sequences are simple, pre-programmed tasks. They operate only when called by an alarm or a time trigger.
Action sequences can manipulate the control relays of the RFC-1, place telephone calls, print readings, etc. A typical
action sequence might be to activate a relay to turn on filaments, pause several seconds and activate another relay to
turn on the plate voltage. The sequence can be stored so that, when called upon, it will power up the transmitter.
An action sequence is of little use by itself. It is merely a stored set of instructions that perform a specific task. The
action sequence must be activated, or triggered, to perform the task. When combined with a date/time trigger or an
alarm trigger, an action sequence gives the RFC-1 the ability to function automatically.
• An action sequence is a stored set of instructions that perform a task when activated.
• An action sequence must be triggered by an alarm or the clock/calendar to function.
It is difficult to discuss action sequences without making references to alarms and date/time triggers and it is
impossible to discuss alarms in the RFC-1 without knowledge of action sequences. Action sequences will be covered
here. Alarms and date/time triggers will be covered in the next segment. The topics are discussed separately to help
avoid information overload. Section 7 contains programming examples that illustrate how all the pieces fit together.
The RFC-1 stores eight user-programmable action sequences and five fixed-programming action sequences. There
is no difference between the two types of action sequences except where they are stored in the system. Otherwise,
they obey the same system rules and operate using the same set of instructions.
6.5.1 Fixed-programming Action Sequences
There are five fixed-programming action sequences that can be used to perform common tasks. They are stored in
the permanent memory of the system and cannot be altered. These action sequences are designated as shown in
the following table.
Previous software versions of the RFC-1 used action sequence 1 as the default action sequence for all alarms. As of
software version 6, all alarms default to action sequence 9. This frees all of the programmable action sequences for
use without any adverse effects. Reprogramming action sequence 1 no longer disrupts the standard alarm calling
ability. Simply use action sequence 9, the default setting, when the standard call loop is needed.
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