Phonetics Sensaphone SCADA 3000, User Manual

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Scan Time: Amount of time for the inputs to be read, plus the duration of the
Ladder program, plus the duration of a synchronous C-Program, plus the time
required to update the outputs.
Ladder Program Statistics
The statistics of the ladder program can be displayed after the program is successfully compiled
or checked for syntax by enabling the Display Usage option in the program menu. This feature
is useful to keep track of which Ladder Variables and Bits have been used. A summary of all
instructions, addresses and instruction types is also provided. A sample report is shown below:
Figure 7: Ladder Statistics form
Ladder Run Viewer
The Ladder Run Viewer allows you to see your Ladder program execute on the screen in real
time. In this mode, inputs and outputs will highlight as they become active, and all addresses
representing numerical values will display those values. Status bits associated with timer and
counter instructions will highlight as they become active.
To enable this mode, compile and upload your ladder program, then start it from the main unit
programming form as discussed above. Next click the red Run Program button on the Ladder
Editor screen, and then the green Realtime Status button. The symbols of your ladder program
will now highlight when they are active. Math and comparison instructions will display the
actual values. In this mode you cannot edit your program. To exit the realtime view mode, first
click the green button and then the red button.
Printing
To print, select File in the Main Menu, and choose Print . Note that where the print dialog
shows the number of pages, this actually indicates the number of rungs to be printed. You can
print all or a part of your ladder program.
On regular, letter-size paper, the program prints 8 rungs per page.
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SCADA 3000 User’s Manual