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Adoption of Device Tags

Functions which do not have their own displayed DT can use the DT from another function. This has the following advantages:

In DT adoption, the system always jumps to the next function in the search direction. The insertion point is the feature searched for: When adopting from the previous column, the insertion points must lie at the same height in the Y direction; when adopting from the previous line, the insertion points must lie at the same height in the X direction. The property DT adoption: Search direction must be set on the function. The search direction can be "According to orientation of plot frame" or "As an alternative to orientation of plot frame".

If the function found contains no displayed DT, the system jumps from here to the next function (insofar as a search direction has been determined for DT adoption in this function). This happens until a DT is found. If no DT can be found, or if the function is not suitable for DT adoption, then an "empty" DT is entered and an appropriate warning is issued.

In addition, the setting "Only from boxes" is available. In this case, the DT will only be adopted from the box surrounding the function (black box, PLC box). If the function is not located in a box, no DT can be adopted.

The DT adoption "Only from boxes" can also be specified for individual project pages by activating the plot frame property DT adoption: Only from boxes at the selected plot frame.

The DT is also adopted from a 'graphical' and 'external' function.

Search directions for DT adoption

As standard, the search direction is taken from the plot frame orientation. The plot frame orientation depends on the setting ("Vertical" or "Horizontal"), defined in the Reporting direction property for the plot frame.

Search direction for the GOST standard

The DT adoption: Search direction conforming to GOST standard plot frame property allows the search direction for DT adoption to be changed to suit the GOST standard. If this property is activated, then in plot frames with a "Vertical" reporting direction, the DT is searched for towards the right and with a "Horizontal" reporting direction the DT is searched for downwards.

Tabular overview of the search directions

The following table clarifies the possible search directions for DT adoption based on the reporting direction of the plot frame. A precondition for this is that the DT adoption: Search direction conforming to GOST standard plot frame property is deselected for plot frames conforming to the IEC and NFPA standards and selected for plot frames conforming to the GOST standard. The alternative search direction is used when the "As an alternative to orientation of plot frame" setting is selected in the DT adoption: Search direction property at a function.

Plot frame

Reporting direction

Search direction

Alternative search direction

IEC

Vertical

Left

Up

NFPA

Horizontal

Up

Left

GOST

Vertical

Right

Down

GOST

Horizontal

Down

Right

Retaining the DT when moving

If you hold down the [Shift] key while moving a component, the original full DT will be retained. The identifying device tags of the components existing on the page and affected by this action are also retained. As a result of this action, the displayed DTs of the moved component, and other affected components, may change. The functions of a device retain their relationships during such a moving action.

Moving with a pressed [Shift] key furthermore affects the Plug designation and Channel designation properties. During "normal" moving of a component the values of these properties remain unchanged. In the case of moving with a pressed [Shift] key the values of the properties Plug designation and Channel designation are adapted so that the values of the properties Plug designation (automatic) and Channel designation (automatic) remain the same.

See also