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  1. fblanchard
  2. PLCnext Engineer
  3. Wednesday, 10 July 2019

Hi,

Is it possible to setup some kind of auto-logoff for the web interface in order to avoid user letting some page open too long?

This is because I realized that one of my web pages causes a drain of around 20% of the total PLCnext CPU power.  It's a page that contains lots of controls and associated events (a kind of global dynamic system overview page).  It might even be a bigger problem if another browser is open to the same page.  Without any web server overload, the PLCnext running my app is already using around 75% of CPU power (that include data exchange with PLCnext Engineer).

The HMI refresh rate is set to 250 ms.  It would not make any sense to increase that delay because we need to visualize events that already occurs at a much higher rate.

I am using sing PLCnext Engineer 2019.03 

Thanks

Frédéric

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jonastcs Accepted Answer Pending Moderation
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Hello Frédéric,

the requirement was forwarded to the development team.
Beside the requirement I have to say that the performane of teh AXC F 2152 has significantly improved in FW version 2019.6, so I guess you wont have the initial problem anymore.

 

Best regards,

Jonas

  1. more than a month ago
  2. PLCnext Engineer
  3. # Permalink
jonastcs Accepted Answer Pending Moderation
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Hello Frédéric,

in the current version there is no Auto LogOff for users. This means that the user has to log off on his own. At the moment, you also can't work with events to leave the page.

Unfortunately, there is currently no other way to avoid this problem. I will forward this feature request to the product management.

 

Best regards,

Jonas

 

  1. more than a month ago
  2. PLCnext Engineer
  3. # 1
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