In zenon Network, if the command screen can't allocate the NET_SEL status bit and gets it later, then it will not refresh the bit.

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• on network client the status bit NET_SEL is sporadically not set when the command input screen has MDI-element 'Lock list'

  Summary Issue in zenon network on client: when user opens command screen via context menu and this screen includes MDI-element 'Lock list' then sometimes the status bit NET_SEL is not set. Then as the bit is not set the buttons in the command screen ...

• In Command Sequencer the tooltip of the unit allocation doesn't consider a missing NET_SEL

  Summary The tooltip indicates after the unit allocation the status as allocated. If response variable has already NET_SEL (“selected in zenon Network”) status bit set, this is not indicated, E.g. when a user opens the command screen and then the ...

• FAQ: How can I monitor and react on the communication status of my devices with zenon?

  Data quality is very important to the integrity of a HMI or SCADA system. As such, zenon has numerous ways to monitor the communication status of different devices within your automation environment. Here are some options that you can use in your ...

• When in Command Processing by an action 'Timeout can be canceled' is activated then the NET_SEL status bit stays set for additional Timeout after action execution is completed.

  Summary Status bit NET_SEL ("selected in zenon Network") of response variable (RV) stays set for Timeout after command screen was automatically closed when 'Watchdog timeout' is elapsed, but action was not completed in the PLC, additional conditions: ...

• While a command action waits on Select response from PLC another actions - for other RV - can be executed only once - then NET_SEL stays and locks.

  Summary Issue in Command Processing blocking another response variables (RV) when a faulty or too busy IED does not react on Select command for a RV. When a device does not respond Select command, another commands - for another RV - can be executed ...