Signal Types - Crestron SIMPL Windows User Manual

Crestron SIMPL Windows
Primer – DOC. 6253
For convenience, parameters may be expressed in a variety of formats (all of which
are directly related to one another). Although a parameter will default to one format
based upon the symbol type, you can alter the format by changing the format
specifier at the end of the value.
Listed below are the valid formats, where the character in parentheses represents the
format identifier.
•
(d)ecimal
•
(h)exadecimal
•
(%) percentage of 65535
•
(s)econds
•
(t)icks – 1 tick = 1/100 seconds (2-Series); or 1/112.5 seconds (X-Series)
•
(')character(') (single byte)
To set a parameter to a specific format, add the identifier after the value, i.e., 25%; if
the parameter is a single byte, place single quotes before and after the ASCII
character.
Parameters can also specify the time of day. Here the time of day is expressed in
military time followed by the "seconds" format specifier, as follows:
•
HH.MM.SS.HSs
•
MM.SS.HSs
•
SS.HSs
•
SSs
•
.HSs
Where HH = hours; MM = minutes; SS = seconds; and HS = hundredths of a second.
For example, the parameter 20.03.05s signifies a time value of 20 minutes, 3
seconds, and 5 hundredths of a second. When using this notation you can leave out
the larger units if you are not using them, thus "3.00.00s" would mean 3 minutes, 0
seconds, and 0 hundredths of a second (it would NOT mean 3 hours).
Depending on the function of a symbol, a parameter can be signed or unsigned.
Signed values range from–32768 to +32767; unsigned values range from 0 to 65535.
Percentages can also be expressed as negatives, i.e., -25% = 25% of 65536, or
16384. (-16384 = 49152d). Thus a parameter of -25% is the same as 49152d. Refer
to the SIMPL Windows help file for further information on valid parameter values.
NOTE: Parameters are constants whose value must be known at compile time. The
value of the parameter cannot be changed while the program is running (e.g. a signal
cannot be assigned to a parameter). To change a parameter, the program must be
changed and recompiled.

Signal Types

The concept of the signal has already been broached. Signals are the elements used
in your program to interconnect the various device and logic symbols that comprise
your program. However the discussion of signals does not end there. For starters,
signals can be one of three types: digital, analog, or serial. For any given signal, the
signal type is determined by the driving source. If the symbol that drives the signal
Software
Crestron SIMPL Windows • 17