You’ll have to edit the Citect32.exe.config on server machines.  The aim is to reduce the PingTimeout.

The default path to Citect32.exe.config is:

C:\Documents and Settings\All Users\Application Data\Citect\CitectSCADA 7.10\Config

The first thing to do is to backup your file.  (Copy it and rename it to Citect32.exe.config.BKP)

Then in the active file, change the PingTimeout parameter value from 30000 to 1000 as it follows:

From:

- < setting name =" PingTimeout " serializeAs =" String ">

  < value > 30000 </ value >

  </ setting >

To:

- < setting name =" PingTimeout " serializeAs =" String ">

  < value > 1000 </ value >

If it’s the first time you’re editing your Citect32.exe.config, make sure to uncomment the relevant section by removing  “ -->”  comment sign at the end of the section:

<setting name="ShutdownDelay" serializeAs="String">

          <value>0</value>

        </setting>

      </Citect.Platform.Net.Session.Tcpip.Settings>

  -->

Then add “ -->” back to the top of the section so you keep the first line commented:

Issues in commenting this file can cause damage in Citect configuration so we recommend looking at the Citect32.exe.config in an XML viewer once you’ve finished editing it. You’ll see immediately if you’ve done something wrong with the comments. 

You can use internet explorer to do that. Add “.xml “ to the name of the file (Citect32.exe.config.xml) and open it with Internet explorer, you’ll see comments greyed out. Then rename it back to Citect32.exe.config and restart Citect.