[Rts]; [Cts]; Other Lines; [Enable] - Crestron SW-SIMPL Installation & Operating Manual

Software
72 • Crestron SIMPL Windows

[RTS]

[RTS] changes the state of the physical RTS pin on the associated COM port to high
as long as the digital signal tied to this input is high. When the digital input drops
low, the RTS line also drops low. If there is no explicit program control of RTS
required, this input my be left out.
NOTE: If explicit control is needed, the Hardware Handshake for this port must be
set to NONE in Configuration Manager.

[CTS]

[CTS] is a digital output of the symbol. The digital signal tied to this output changes
stste when the CTS pin on the associated COM port changes state. When CTSis
driven high, the digital signal tied to this output goes high. When CTS is driven low,
the digital signal tied to this output goes low. If no explicit monitoring of CTS is
required, this output may be left blank.
NOTE: If explicit monitoring is required, the Hardware Handshake for this port
must be set to NONE in Configuration Manager.

Other Lines

Other lines are labeled str1, str2, etc. Each has an associated digital input or digital
output. On the rising edge of a digital input, the data in the string field is sent out the
associated COM port. This allows constant data to be easily transmitted without the
need to code other symbols and connect them to the TX$ line. When the COM port
receives data, it attempts to match it to strings that have digital outputs associated
with them. If it finds a match, the associated digital output is driven high.
NOTE: If the same data is received twice by the COM port, the digital output for
that string drops low momentarily (a logical impulse) and then is driven high again.
In this way, all matches are seen.
NOTE: String fields may contain any valid strings. Information on strings can be
found at "Legal String Syntax" on page 53.

[enable]

[enable] is an optional digital input that only affects the transmission of the constant
strings and the matching of strings. If nothing is tied to this input, the constant
matching/transmission is enabled. If a digital signal is tied to it and is low, the
constant matching/transmission is inhibited. This does not affect the usage of the
TH$, RX$, BREAK, RTS, or CTS signals.
Crestron SIMPL™ Windows
Installation & Operations Guide –DOC. 5728C