Why do I get the error "srvr output queue overflow"

[stans]

I keep getting a "srvr output queue overflow" error which is causing the dat to update too slow. What could be causing this.

[Zork]

More information is required. What server queue is overflowing, version of software, device being used,...
You may want to send this information to E-mail support or generate a Service Request and call in. This can be done from Request Support under the Support tab.

[Soochow_Simon]

I encouter the same problem with you.

I am using lv7.1, dsc module 7.1 to communicate with simens s7-300 PLC via OPC Server.

Now the problem is some datas displayed in touch screen are updating very slow sometime, and on PC screen, there is an error "SRVR output queue overflow". I have 3 slave stations with this master station. If I turn off even one station, there is no problem but only a little slow.

Do you think if the CPU of PLC is not powerful enough to deal with too many datas from PC? I will try a more powerful PLC to test it.

[Captain_Kirby]

Hi,

This error can come from the fact that your server is having to output to multiple clients. This causes the slowdown, and increases you buffer until it overflows. To fix this,  you need to increase the output queue size. To change these queue sizes start the Tag Configuration Editor and select Configure Engine. The queue configurations are located in the Servers tab.