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General => Technical support => Topic started by: garysdickinson on December 18, 2011, 10:18:04 AM

Title: PAUSE Statement iTRiLOGI V6.43
Post by: garysdickinson on December 18, 2011, 10:18:04 AM

I was attempting to work on the CRC issue raised on the forum, and find that I am very confused about the TBASIC PAUSE statement.

I am attempting to use PAUSE as a debug tool.  I have the following custom function that is run on the first scan:


setlcd 1,1,"Program Started"
pause
setlcd 2,1,"Program Continued"


I expected to observe:

• "Program Started" message on the LCD
• "Pause Executed in Fn #1" window
• Click on PAUSE menu button to continue
• "Program Continued"  message on the LCD

This is what I observed:

• "Program Started" message on the LCD
• "Pause Executed in Fn #1" window
• Click on PAUSE menu button to continue
• Simulation continues on next rung of ladder logic

PAUSE seems to be interpreted as a special version of the TBASIC "Return" statement.

Is this the design intent of PAUSE?

Gary d

Title: Re:PAUSE Statement iTRiLOGI V6.43
Post by: support on December 19, 2011, 10:09:51 AM

PAUSE appears to work correctly as per your expectation on the PLC. But on the simulator it appears to quit the custom function after it has been released from PAUSE. I think it is a bug with the simulator which we will fix it in the next release of the software.

Title: Re:PAUSE Statement iTRiLOGI V6.43
Post by: garysdickinson on December 19, 2011, 12:53:43 PM

Thanks,

I was  using the simulator to debug a crc routine and was a bit worried about how TBASIC would handle bit-wise operations and the rshift /  lshift behavior.  

Gary d