Assign Field Devices to Junction Boxes

Multiple field device tags may be assigned to junction boxes. As part of this procedure, a wiring rule may be assigned which will result in the cables/terminations at both the field device and junction box ends being automatically created based on the selected rule.

Refer to Using Wiring Rules for further information on wiring rules.

Notes: Junction boxes and wiring rules can also be assigned to field devices on an individual device-by-device basis. See Create Wiring for Field Devices.

The maximum number of cables that may be connected to a junction box may (optionally) be specified on the More Information window accessed from the Equipment Layout window. If the application of a wiring rule would result in more than when the maximum number of cables being assigned to it, a message is displayed to inform the user of this.

1. From the Wiring Manager Equipment View or from Wiring Manager Cable Block Diagrams right-click on a Junction Box equipment node.

2. Click Junction Box Allocations from the menu that is then displayed.

   The Allocate Tags to Junction Box window is then displayed.

   The window shows all tags currently assigned to the Junction Box, plus details of the cables linking them and the assigned wiring rule:

   

   This window allows you to:

   • Assign tags to a Junction Box.

   • Assign a Wiring Rule to each tag in this view.

   • Wiring rules may already be assigned to tags when they are created or subsequently edited, however if this is not the case, or if a different rule is to be applied, this can be done using this window (each tag selected in the window must have a Wiring Rule assigned before the Create button is clicked).

   • Auto-create terminals, field cables and field cable terminations at both field device and Junction Box ends based on the Wiring Rule assigned to each tag.

     Column Explanations
     Select	Used to select which tags are processed when the Create button is clicked.
     Seq	Defines the sequence (order) in which tags will be assigned to terminals.
     TagNo	The item tag number (these tags can only be edited in Engineer).
     Code	The 'Loop Code' is used by Datalinks in the Designer module to map information into a loop drawing template when generating CAD drawings. It is only required if users intend to generate CAD loop drawings in Designer.
     WiringConfig	The name of the Wiring Rule to apply to the tag. To select a Wiring Rule hover the mouse over this cell. A button is then displayed. Click this button to display the Wiring Rule Definitions window. See Assign Wiring Rules to Tags for further details.
     Terminate	When checked, Wiring Manager will terminate wires at the Junction Box end of the field cable. When unchecked, Wiring Manager connects the cable to the Junction Box but does not terminate the cores, leaving them to be terminated manually later.
     CableNo	This displays the default cable number as created by the wiring rule or the actual cable number from the Wiring Manager Cable Schedule (if the cable has been created previously). Enter a new value if required.
     Cable Type	Displays shows the base cable type. The default cable type comes from the Wiring Rule catalog cable (if the cable is not yet created) or from the Wiring Manager Cable Schedule (if the cable has been created previously). Change the cable type by clicking the button that is displayed when the is hovered over a cell in this column. The Select a Cable from Catalog window is then displayed. Refer to Select Catalog Cable for further details. Note: The core sequences of Wiring Rules override those of catalog cables. The connection order of a Wiring Rule is always preserved even if this does not match the core sequence order defined in the Cable Catalog.
     Toolbar Buttons
     Assign	Displays the Select Instruments (s) to Allocate to Junction Box... window, which lists all tags not yet assigned to a Junction Box. Refer to Assign Field Devices to Junction Boxes for further details.
     Unassign	Unassigns selected tags from the current Junction Box.
     Select All	Checks the Select checkbox of every listed tag.
     Print	Displays the Terminations report for the Junction Box. Refer to Termination Reports for further details.
     Refresh	Reloads current Junction Box tag assignments from the database.
     Use Default Cables	If non-default cable numbers have been entered, clicking this button renames them to the default name. A message will be displayed asking the user to confirm the rename of any cables with non-default names.
     Command Buttons
     Create	Creates all selected tags wiring from the Wiring Rules and data in this grid.
     Save	Saves changed data in the grid, but does not create Wiring Rule data. This allows users to pre-assign junction boxes, prior to cable/device creation and to assign Wiring Rules.
     Cancel	Exits the window without saving or creating wiring data.