![background image](http://html1.mh-extra.com/html/icp-das-usa/isagraf-pac-series/isagraf-pac-series_getting-started_3826573063.webp)
Getting Started:
PAC-5007/5107/5207/5307 Ver. 1.1, 12/2011 ICP DAS
4-18
States of the Program:
As diagram above, "SW1" and "SW2" are the Normal Open switches that have not been
energized so their color is blue. The "SHUT" is a Normal Close switch and its color is red
because it is energized. Now, the light statuses in the I/O simulator window are OFF.
Description of the Simulation:
In the example, if either “SW1” or “SW2” is ON and the “SHUT” is OFF, then the OUT01 ~
03 will start blinking every one second (according to the time of “TMR1”).
You may click either the "SW1" or "SW2" button in the "I/O Simulator" window to
observe the simulation of the program.
1.
Click "SW1" (green button) to set it as ON. (As diagram below)
For now, the current can flow through the circuit from “SW1” to “SHUT”. It means the
logic of the LD program would become “True”. Therefore, the "OUT1", "OUT2" and
"OUT3" will start blinking (according to the time of “TMR1”).
2.
Click "SHUT" (green button) to set it as ON. (as diagram below)
The "OUT1", "OUT2" and "OUT3" will stop blinking. (The logic of the LD program
would become “False” because the circuit has been interrupted.)
3.
You can modify the "TMR1" variable while the program is running. To accomplish this,
click on the "Dictionary" button in the "ISaGRAF Quick LD Program" window which
will open the "ISaGRAF Global Variables" window as shown below.
OUT01 ~ 03 are
blinking per second
1.