Isys
®
Wired 5.7 Inch Tabletop Touchpanel
Crestron
TPS-1700
14
•
Isys
®
Wired 5.7 Inch Tabletop Touchpanel: TPS-1700
Operations Guide - DOC. 6223A
Analog Signals
Unlike digital signals, analog signals can vary continuously in value, in the same
manner as a parameter such as volume, temperature, or pressure. Analog signals
contain 16 bits of information, which means that this type of signal can have values
ranging from 0 to 65535 (2
16
-1). This 16-bit property makes analog signals useful for
controlling devices that do not have discrete settings, such as volume controllers,
pan/tilt head controllers, and lighting dimmers.
Serial Signals
Serial signals are much like analog signals, in that they, too, contain 16 bits of
information. However, whereas the value of an analog signal is used directly–to
control volume or temperature, for instance–the value of the serial signal is used as a
pointer to a location in memory that contains a string of characters. When a serial
signal is routed to a symbol, that symbol can identify the signal as serial rather than
analog and it will automatically look at the data to which it points.
Thus, serial signals are used to facilitate the transmission of serial data (strings of
characters). These signals can be generated by incoming data on a COM port or by a
symbol that has a serial output.
TPS-1700 Input/Output Signals
The TPS-1700 symbol provides up to 4K digital and/or analog input and output
joins, up to 999 serial input and up to 127 serial output joins. The programmer
selects the signal types by clicking on the appropriate button at the top of the
Symbol
Detail
view when programming the panel.
The following tables list functional descriptions for touchpanel outputs and inputs.
Digital Output Signal Descriptions
OUTPUT DESCRIPTION
press 1 through press 4000
Notifies control system of button press (1 – 4000).
High/1 = press On
Low/0 = press Off
Digital Input Signal Descriptions
INPUT DESCRIPTION
fb 1 through fb 4000
Notifies panel to display feedback (1 – 4000). This can
represent that the button was pressed, or can be actual
device feedback, e.g., that power was turned on.
Analog Output Signal Descriptions
OUTPUT DESCRIPTION
an_act 1 through an_act 4000
Notifies control system of an analog action (1 - 4000).
Any value from 0 through 65535
Analog Input Signal Descriptions
INPUT DESCRIPTION
an_fb 1 through an_fb 4000
Notifies panel of analog feedback (1 – 4000).
