Define command input

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Select the entry Command input in the project tree and open the context menu. Select Command input new.

After creating a new command setting (command interlocking), it is added to the detail view of the project manager with the standard name "Interlocking + Index". The index is replaced by a consecutive number. This name serves for the unique identification of the interlocking in the system.

info Info

You can assign any name you like to the interlockings. However, the names must be unique within the project (applies for standard interlockings and command interlockings).

The following parameters are available for command interlockings:




Name of the command interlocking. Must be unique among all interlockings in the project. This name is used later with the process variable that uses this interlocking. The actual allocation is done with a unique consecutive numerical ID. The name is only used for GUI, Export and Import.

Variable name of response

This is the variable name resp. the mask for the substitution of the response variable.

The placeholder for the substitution text is the character sequence ‚*' within a name. Only one placeholder can be used in a name. When entering the mask, it is important to take care that this name results in an existing variable name after substitution.

If the variable that is used here (substituted or absolute) does not exist during compiling, the command interlocking is not available in the RT. An according message announces this error during compiling.

Display of desired direction

If this is active, the status bit 'Desired direction' is written to during the actions 'Command' and 'Correction'. The value that the status bit is set to depends on the switching direction of the action.

The status bit is set to 1 if:

The switching direction of the action is not 'None'.

The response variable does not already have the expected switching direction.

The status bit is set during the check of the interlockings and it remains on that value until the picture returns to step 1 or until it is closed. This also implies that the status remains while the watchdog timer and/or the edge delay is active.

Also during the execution, triggered by a context menu and one-staged, the status bit is set accordingly.

Watchdog timer

The combo box provides the following settings:

  • none: The watchdog timer is deactivated.
  • Response variable: The value of the response variable is used to determine if the command was successful.
  • COT : Watchdog timer in its initial form. The COT is used to determine if the operation was successful.

Picture modal

If this is active, the picture is displayed modally, independent of the setting 'Modal dialog' in the picture settings.

Picture title from RV

The identification of the response variable is shown in the picture title. This only happens when there a title was configured for the picture at the template.

Text is online language switchable.

Command picture

Name of the picture to be loaded if no action specific picture is defined and if the picture is not opened via the function 'Picture : Switch to'.