Rockwell Automation AutoMax Enhanced Ladder Editor - Manual (Page 59)

5Ć13
5.11 Capturing the State of Logic in an Online
Program
While monitoring a program, you can freeze or capture the power
flow of a given rung using the Capture Trigger command from the
Online menu. When the trigger is activated (becomes true), the state
of the rung is captured and displayed. The rung's power flow
information is not updated on the computer; however, it continues to
run on the Processor. The Editor obtains trigger information from the
Processor. You can capture a rung's status based on one of the
following conditions:
D a coil turns on
D a coil turns off
D an error occurs with an instruction in a rung
If more than one coil exists, the coil used for the trigger is a rung's
upperĆrightĆmost coil. Once a trigger is set, it is active on the next
program scan. Triggers are edgeĆsensitive. (For example, a coilĆon
trigger is activated the next time that the coil goes true.)
Only one trigger can be set for a rung, but you can set multiple
triggers in an online program. The only limitation is the amount of
available Processor memory.
Triggers are local to the computer that set the trigger. Other online
connections cannot view these triggers until they are activated.
A trigger remains set as long as the rung is displayed in the online
program window. Once the triggered rung scrolls off the screen, the
trigger is cleared. Also, closing an online program window clears all
the triggers set in the program.
Rungs that have triggers set are indicated by a letter displayed in
the rung status area representing the trigger type, either an o", f",
or e". When a trigger is activated, this indicator is replaced by a T."
If a rung is marked by a revision mark, the trigger indicator replaces
the revision mark until the trigger is cleared.
This table summarizes some points to keep in mind if you set
triggers on rungs that already contain a trigger.
If a rung already has a trigger set
and you:
Then the Editor:
D modify the rung, or
D scroll the rung off the screen, or
D close the program window clears the trigger
select the same trigger type for a new
trigger
resets the trigger
select a different trigger type for a
new trigger
clears the current
trigger and assigns
the new trigger to the
rung
The Editor notifies you when another online connection has set a
trigger for the same rung.