Change Terminal Markings and Labels

Note:
Terminal Markings cannot be edited for Devices and I/O Modules for a specific project instance as all Devices and I/O Modules are a copy of the Catalogue definition. The only way to change terminal markings (or arrangements) for catalogue components is to select another catalogue item or edit the catalog item in the Device or I/O Module Catalogues. Changing a Catalogue component changes all instances of that component in the entire project. This forces all components used to be identical to the Catalogue definition.

To change an individual terminal marking (terminal number) for a terminal on a Terminal Strip, Earth Bar or Field Device, or to re-sequence selected terminals in a Terminal Strip or Earth Bar, from the Terminations window, right-click on the Terminal to be changed.

From the menu that is then displayed, select the Change Terminal Marking or Change Signal No. option. The Change Terminal marking window is displayed, showing the current Terminal marking:

Change Terminal Marking

To change a terminal marking enter a new value in the Terminal Marking field and click Save.

If multiple terminals were selected in the Terminations window, then selecting the Apply New Sequence to all following Terminals checkbox will re-number the selected terminals sequentially from the entered for terminal marking. This feature only works if the new terminal marking is numeric.

Note:
If using the {SignalNo-NoPolarity} datalink as part of the Automatic Ferrule Numbering facility, make sure to use the signal number/polarity break character as specified in on the General Tab of the Options window, i.e. enter it before the actual terminal marking in the Terminal Marking field.

Change Signal Numbers

In Electrical Wiring Manager, all signal (or wire) numbers start from an equipment terminal. Typically, all field devices would have a signal number added to each terminal. In fact, signal numbers are added automatically to all field devices created with Electrical Wiring Manager Wiring Rules (see Using Wiring Rules).

If a terminal that already contains a signal number is right-clicked on, the Change Terminal marking window is displayed:

To change a wire number/marking enter a new value in the Signal Marking field and click Save.

If the change would result in a conflict of signals the following message is displayed and the change is not made:

Users can set the default signal numbers for each Field Device terminal when defining Wiring Rules. Refer to Wiring Rule Definitions.

Manually Add Signal Numbers

If required, users can manually assign a signal number on any terminal by double-clicking on the Signal Number field. This removes the 'read-only' property from the signal number. The users may then enter a different number.

Note:
Signal/wire numbers assigned to terminals remain on their terminal regardless of which wires are terminated. Users should only assign signal/wire numbers to terminals that carry a permanent signal e.g. a Field Device etc. However, there are valid situations where users may need to permanently assign a signal to terminal in a terminal strip, such as picking up a motor run contact from an interposing relay cabinet or from an MCC. In this case there is no 'Field Device'.

Remember that signal numbers are inherited by all wires/cable cores that are connected directly to a terminal containing a signal number, and wires connected to a wire that has an inherited Signal Number. Refer to Wire Numbering for more details.

Change Field Device Terminal Labels

To change a field device terminal label from the catalogue default, right-click on it and select the Change Terminal Label option. The Change Terminal Label window is displayed, showing the current Terminal label:

Enter the required label and click Save.