
Configuring the Trigger-Action Feature
Guidelines for Creating or Modifying Actions 11-15
X To configure a CTS signal trigger
Execute the signal port cts command in Trigger Command
Mode to specify a signal transition on the CTS pin of a
specified port as the condition for a signal Trigger. The
following command specifies that the Trigger condition is true
when the CTS signal on port 5 transitions to high:
Example Trigger_Port5CTSHigh:0 >>signal port 5 cts high
X To configure a DSR/DCD signal trigger
Use the signal port dsr-dcd command to specify a signal
transition on the DSR/DCD pin of a specified port as the
condition for a signal Trigger. The following command
specifies that the Trigger condition is true when the DSR/DCD
signal on port 6 transitions to high:
Example Trigger_Port6DSR-DCDHigh:0 >>signal port 6 dsr-dcd high
X To configure a temperature port trigger
Execute the temperature port command in the Trigger
Command Mode. In the following example, the temperature
condition is true when the temperature reading on SENSOR
port 3 is greater than 34 degrees Celsius. This example also
includes an optional hysteresis value of 4:
Example Trigger_TempPort3GT34:0 >>temperature port 3 > 34
celsius hysteresis 4
The hysteresis is a range that exists preceding and below the
actual threshold setting. After a threshold is crossed, any
readings within the hysteresis range are not considered a
crossing of the threshold until a measurement outside the
hysteresis has been taken. You should only configure the
hysteresis to prevent “sporadic” or “spike” temperature levels
from producing inappropriate firings of the Rule associated
with this Trigger.
A Signal
Trigger is used
to initiate an
Action in
response to a
signal transition
on the CTS pin,
or the DSR/DCD
pin, of an LX
asynchronous
port.
A
Temperature
Port Trigger
is used to
initiate an
Action in
response to an
external
temperature
reading.
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