Odd behavior

[bgriffith]

I have this small test program:

START    
    SET VAR1 UROM1  
    SET VAR2 UROM2  
    SET VAR3 UROM3  
    SUB UROM2 UROM1 VAR4
END    
 

 
From the General Setup page I have:

UROM1=23000
UROM2=68000
UROM3=5000

 
In the System Status page I get:

VAR1=1885416556
VAR2=1885416556
VAR3=1885416556
VAR4=133677052, 137478140, 137476092, 217563132

VAR4 keeps changing, but seems to be randomly switching between just a few numbers.
 
Quite often when I send the PLC program, I get the following error message after about a minute, but the program seems to have loaded fine (it's running and still there when I go back to the PLC page).

Error occured whilst sending configuration to WebControl

I just tried sending it again to measure how long it took (exactly a minute until the error message), and now when I go to the System Status page I get another error:

Invalid string length for GenCfg data 0 24

I've gotten that one a few times before, but not every time.  Sometimes after that error there's no program running and the PLC code area is empty.  This time it seems ok though.
 
I have v03.02.17f loaded, but it's the test version with the email time zone fix.  I did see both of the above error messages with 17e also, but I didn't try the test program with the UROMs until 17f.
 
What's going on?

 

[CAI_Support]

bgriffith, good discovery.  We took a look and found the UROM was not really reading back from the variable.
We will provide you a updated image in few minutes.

 

[CAI_Support]

Attached please find the update image for HW rev 2.2.2 board WebControl firmware with bootloader.
Please reference this page for how to update firmware
http://www.cainetworks.com/support/how-to-update.html
 

 

[bgriffith]

Thanks!  I will give that a try.  I won't be able to get to it until late tonight though.
Should I be concerned about the error messages that I've been seeing?
 
-Ben

 

[CAI_Support]

You probably having different WC8 boards running different firmware. When you switch to another board, please make sure to "refresh" the browser, so that it will read back from board the match GUI code for that board.  The message indicating your browser cached a copy of different GUI.

 

[bgriffith]

I only own one board, but I did update the GUI last night when I updated the firmware.  Perhaps there was still something stale in the browser cache.
How long should it take to upload firmware?  Sometimes it happens in a couple seconds and other times it takes a full minute and ends with the "Error occurred whilst..." message. When it's slow the line of dots showing progress extends beyond the size of the box and causes a scroll bar to appear (so I can slide it back and forth and look at all those dots).

 

[CAI_Support]

When board updating firmware, unless its GUI does not need to update, you should not try to access GUI during update or between update firmware and GUI.  Only matching firmware and matching GUI will work, otherwise, you will see error messages.

 

[bgriffith]

Updated firmware works.  UROMs are copied into VARs as they should be with the above code.