General Information

Sigwatch
Specifications
Packages required: advanced-tools
License required: level1
Home menu level: /tool sigwatch
Standards and Technologies: none
Hardware usage: Not significant
Description
Sigwatch can be used to monitor the state of serial port pins.
Property Description
count (read-only: integer) - how many times the event for this item was triggered. Count is reset on
reboot and on most item configuration changes
log (yes | no; default: no) - whether to add a message in form of name-of-sigwatch-item: signal
changed [to high | to low] to System-Info facility whenever this sigwatch item is triggered
name (name) - name of the sigwatch item
on-condition (on | off | change; default: on) - on what condition to trigger action of this item
• on - trigger when state of pin changes to high
• off - trigger when state of pin changes to low
• change - trigger whenever state of pin changes. If state of pin changes rapidly, there might be
triggered only one action for several state changes
port (name) - serial port name to monitor
script (name) - script to execute when this item is trigered
signal (dtr | rts | cts | dcd | ri | dsr; default: rts) - name of signal of number of pin (for standard
9-pin connector) to monitor
• dtr - Data Terminal Ready (pin #4)
• rts - Request To Send (pin #7)
• cts - Clear To Send (pin #8)
• dcd - Data Carrier Detect (pin #1)
• ri - Ring Indicator (pin #9)
• dsr - Data Set Ready (pin #6)
state (read-only: text) - last remembered state of monitored signal
Notes
You can type actual script source instead of the script name from /system script list.
Example
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