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
In the following example we will add a new sigwatch item that monitors whether the port serial1
has cts signal.
[[email protected]] tool sigwatch> pr
Flags: X - disabled
#
NAME
PORT
SIGNAL
ON-CONDITION LOG
0
test
serial1 cts
change
no
[admin@MikroTik] tool sigwatch>
By typing a command print detail interval=1s, we can check whether a cable is connected or it is
not. See the state argument - if the cable is connected to the serial port, it shows on, otherwise it
will be off.
[admin@MikroTik] tool sigwatch> print detail
Flags: X - disabled
0
name="test" port=serial1 signal=cts on-condition=change log=no script=""
count=1 state=on
[admin@MikroTik] tool sigwatch> print detail
Flags: X - disabled
0
name="test" port=serial1 signal=cts on-condition=change log=no script=""
count=1 state=on
[admin@MikroTik] tool sigwatch> print detail
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