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AVEVA Marine
(12.1)
Cable Tray Modelling
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Revision Log
Date Revision Description of Revision Author Reviewed Approved
08/11/2011 0.1 Issued for Review 12.1 SM
15/11/2011 0.2 Reviewed SM AA
15/11/2011 1.0 Approved for Training 12.1 SM AA SH
Updates
All headings containing updated or new material will be highlighted.
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Disclaimer
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Contents
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1 Introduction ... 7 1.1 Aim... 7 1.2 Objectives ... 7 1.3 Prerequisites ... 7 1.4 Course Structure ... 71.5 Using this guide ... 7
2 Cable Tray Design – Basic Concepts ... 9
2.1 Starting an Outfitting Session ... 10
2.2 Cable Tray Specifications ... 10
2.3 Setting the Appropriate Specification... 11
2.4 Cable Tray Branches ... 11
2.5 Cable Tray Branch Heads and Tails ... 12
2.6 Cable Tray Creation ... 13
2.7 Cable Tray Branch Head / Tail Positioning Explicitly ... 13
2.8 Cable Tray Branch Components (Fittings) ... 14
2.8.1 Creating Branch Components (Cable Tray Fittings) ... 15
2.8.2 Selecting the Component from the Specification ... 15
2.8.3 Branch Component List Order ... 16
2.8.4 Automatic Positioning and Orientation of New Components ... 17
2.8.5 Positioning and Setting the Orientation of Components ... 17
2.8.6 Arrive and Leave Points ... 18
Exercise 1 - Create a Cable Tray ... 19
3 Connecting and Positioning Cable Tray Components ... 21
3.1 Connecting the Branch Head or Tail ... 21
3.1.1 Connect to First Member ... 22
3.1.2 Connecting to Tee ... 23
3.1.3 Connecting to Multi-way ... 23
3.1.4 Connecting to Branch Head ... 23
3.1.5 Connecting to Branch Tail ... 23
3.1.6 Connect to Last Member ... 23
3.1.7 Connect to Name ... 24
3.2 Connecting a Component ... 25
3.2.1 Connecting Components at Creation ... 25
3.2.2 Connect To Previous ... 26
3.2.3 Connect To Next ... 27
3.3 Displaying Cable Tray Obstruction Level ... 27
3.4 Positioning Cable Tray Items ... 28
3.5 Positioning Components ... 29 3.5.1 Distance ... 29 3.5.2 Through ... 32 3.5.3 Clearance ... 33 3.5.4 Plane Through ... 34 3.5.5 Plane Clearance ... 34
Exercise 2 - Adding and Positioning Components ... 35
4 Branch Re-routing and Connection References ... 37
4.1 Swap Branch ... 37
4.2 Change Exit ... 37
4.3 Changing Branch Routing at a Tee ... 38
4.4 Changing a Component Connection Reference Explicitly ... 39
Exercise 3 – Branch Routing ... 40
5 Positioning Commands for Branch Head/Tail ... 41
5.1 General ... 42
5.2 Distance ... 43
5.3 Through ... 44
5.4 Alternative Positioning Forms ... 45
5.4.1 Move Form ... 45
5.4.2 Move Branch Form ... 51
5.4.3 Drag Move and Drag Move Branch Forms ... 51
5.5.1 Quick Cable Tray Routing (Worked Example) ... 53
5.5.2 Move an Inline Component using the Modification Handle ... 57
5.5.3 Align a Cable Tray Component ... 59
5.5.4 Setting the Increment Values ... 61
5.5.5 Other Ways to Move Inline Components ... 62
Exercise 4 (Quick Cable Tray Routing) ... 63
5.5.6 Positioning Using Ships Reference ... 64
5.5.7 Moving Inline Components to another part within the same Branch ... 65
5.5.8 Rotate a Component using the Cable Tray Modification Handle ... 67
5.5.9 Orientate a Component to a Point ... 67
5.5.10 Align a Component with a Direction ... 68
5.5.11 Align with a Direction Relative to a Axis ... 68
5.5.12 Rotate by Entering a Value ... 69
5.5.13 Move an Elbow / Bend in One Direction ... 69
5.5.14 Move an Elbow / Bend in Two Directions ... 70
5.5.15 Move an Elbow / Bend Using the Align with Feature ... 70
5.5.16 Move using Offset From Feature ... 71
5.5.17 Move using Snap to Point Feature ... 71
6 Fixed Length Trays and Implied Straights ... 73
6.1 Replacing Implied Straights with Fixed-Length Trays ... 73
6.2 Replacing Fixed-Length Trays with Implied Straights ... 74
Exercise 5 - Create Branch and Add Fixed Length Tray ... 75
7 Additional Cable Tray Functions ... 77
7.1 Copying Cableway elements ... 77
7.1.1 Copy an Inline Component ... 77
7.1.2 Copy a Branch ... 79
7.2 Rename a Cable Tray / Branch ... 80
7.3 Deleting Cable Tray elements ... 80
7.3.1 Deleting a Cable Tray / Branch ... 80
7.3.2 Deleting Individual Components ... 82
7.3.3 Delete a Range of Cable Tray Components ... 82
7.4 Changing the Length of Cable Tray Legs ... 83
7.5 Group Functions ... 84
7.5.1 Moving a Single / Multiple Cable Tray Including Branches ... 84
7.5.2 Mirror a Branch° ... 86
7.6 Copy a Cable Tray Including Branches ... 88
Exercise 6 (Copy and Modify Cable Trays) ... 90
7.7 Cable Tray Design Attributes ... 91
7.7.1 Example of Cable Tray level attributes ... 91
7.7.2 Example of Branch level attributes ... 91
7.7.3 Example of component level attributes ... 92
7.8 Modifying attributes ... 92
Exercise 7 (Cable Tray Layout) ... 93
8 Data Consistency Checker ... 99
8.1 Possible Types of Data Error ... 99
8.1.1 Design Tolerances ... 100
8.1.2 Starting the Data Consistency Checks... 100
8.1.3 The Report Format ... 101
8.1.4 The Diagnostic Messages ... 101
8.1.5 Some Examples of Diagnostic Messages ... 102
Exercise 8 (Data Consistency Check) ... 104
9 Isometric Production ... 105
9.1 Accessing Isodraft ... 105
9.1.1 Option Files ... 107
Exercise 9 (Isometric Production) ... 107
10 Generating Reports ... 109
10.1 Reports ... 109
10.2 Running a Report from a Saved Template ... 110
10.3 Quick Reports ... 111
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CHAPTER 1
1
Introduction
Cable tray routing is an important activity on any large project. It uses the same principles and concepts as pipe routing in AVEVA Marine that has always been one of the major strengths of the system.
1.1
Aim
Over one day the aim of the course is to provide the skills required to use the AVEVA Marine Cable Tray Design application in the most productive way and to introduce some of the techniques that are used in the other outfitting applications, have a understanding of Cable Tray isometrics and to have a good basic understanding of the Cable Tray Reports.
1.2
Objectives
To familiarise participants with the basic concepts of cable trays and branches
To understand the use of cable tray specifications in AVEVA Marine.
To understand the branch heads and tails and the importance of component list order and flow direction within a branch
To be able to create, position and orientate cable tray components.
To be able to apply obstruction level to the cable tray
To be able to understand more complex positioning with relation to other design items.
To be able to run data consistency checks to screen or file.
Produce a simple Isometric from standard option files.
Generate Cable reports from AVEVA Marine
1.3
Prerequisites
The participants must have completed the AVEVA Marine (12 Series) Outfitting Foundations course.
1.4
Course Structure
Training will consist of oral and visual presentations, demonstrations and set exercises. Each workstation will have a training project, populated with model objects. This will be used by the trainees to practice their methods, and complete the set exercises.
1.5
Using this guide
Certain text styles are used to indicate special situations throughout this document, here is a summary; Menu pull downs and button click actions are indicated bybold turquoise text.
Information the user has to key-in will be in bold red text. Annotation for trainees benefit
Additional informationSystem prompts should be bold and italic in inverted commas i.e. 'Choose function' Example files or inputs will be in the courier new font, colours and styles used as before.
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CHAPTER 2
2
Cable Tray Design – Basic Concepts
There is a separate design hierarchy for cable tray routing which follows the same principles as for pipe routing; each cable element may own a number of branches. In turn, branches may own a number of cabling components like bends, risers and reducers.
The difference between cable tray and branches is that a branch is only considered to have two ends, while a cable tray may have any number of ends, depending on the number of branches it owns.
The diagram below shows a cable tray with three ends and two branches. The second branch is connected to the first at the tee. Although a branch only has two ends, it may own components (in this case a tee), which connects to other branches.
These simple concepts enable any number of cable tray configurations to be developed, and form the basis of all the AVEVA Marine cable trays encountered. BRANCH 1 TEE BRANCH 2
2.1
Starting an Outfitting Session
To start the AVEVA Marine application, select All Programs > AVEVA Marine> Design > Marine 12.1 > Outfitting
The AVEVA Marine - Outfitting Login form appears, enter the following data:
Project Training Username ELECT Password ELECT MDB ELECTRICALFWD,
Then click the Login button.
Setting the project to Training on the AVEVA Marine – Outfitting Login form will result in the use of the Marine Training Project; this will be referred to as MTP for the remainder of this guide.
A default screen layout will be displayed comprising the application pull-down menu and a Design Explorer showing all the objects from the current project database. The user can reposition and, in some cases, resize the Outfitting windows.
Once the Outfitting module has been started, the user must check that the Cable
Trays application is running. This can be seen on the top of the design
framework. If it does not show Cable Trays, select Design > Cable Trays… from the application pull-down menu to change to the correct application.
2.2
Cable Tray Specifications
In the same way that design offices have standard cable tray specifications for different materials, AVEVA Marine has a set of specifications from which the user can choose. In fact all components used must be defined in the Catalogue and placed in a Specification before the designer can select them. In the Training project there are three main such specifications:
SCTG STANDARD DUTY CABLE TRAY
MDCLG MEDIUM DUTY CABLE TRAY
HDCTG HEAVY DUTY CABLE TRAY
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2.3
Setting the Appropriate Specification
The first task when building a cable tray is to decide which specification to use. Having decided on the appropriate specification, it is then set as an attribute of the cable tray. Any subsequent branches will automatically be assigned with the same specification (although this can be re-specified if required). On entry to the Cable Tray Application the Default Specifications Form
is displayed.
To change the default specification, select Settings > DefaultSpecification, and select the new specification
Select SCTG from the list and click OK
To change the Main or Branch specification, select Modify > Main orModify > Branch > Specification from the pull down menu and select the
new specification required
The Cable Tray Toolbar is used to view and manipulate the cable tray specification. Clicking on the Set Default Cable Tray Specification icon to the left displays the Default Specification form. The text box adjacent to the specification icon displays the default cable tray specification.
2.4
Cable Tray Branches
Branches serve two purposes:
They define the start and finish points of a cable tray route (known as the Head and Tail in AVEVA Marine).
They own the cable tray components, which define the route.
The position and order of the cable tray components below branch level determine the physical route. In AVEVA Marine, it is only necessary to consider the fittings, because the cable tray that appears between fittings is automatically selected according to the specifications of the fittings.
2.5
Cable Tray Branch Heads and Tails
All branches need to have a start and end point. These can be a position in space (3D co-ordinates), the flange face of an equipment nozzle or pipe, a tee or various other points in the design. Heads and tails are set up via a series of attributes that belong to the branch element.
The attributes for heads of branches are:
HPOS The position in the zone where the branch starts. HCON The connection type of the branch end (BOXI or OPEN).
HDIR The direction in which the start of the branch is pointing (as if the user looks down the tray / ladder).
HBOR The width of the cable tray.
HREF The name of the item to which the branch head is connected (i.e. Href TEE 1 of BRANCH /CTRAY_YY2/B1). If this is not set, then the branch is open.
HSTU This is a reference to the catalogue, which determines the material of the first piece of cable tray, between the start of the branch and the first fitting (this still needs to be set, even if there is a fitting connected directly to the head).
The attributes for tails of branches are:
TPOS The position in the zone where the branch ends.
TCON The connection type of the branch end (BOXI or OPEN).
TDIR The direction in which the end of the branch is pointing (as if the user looks back down the tray / ladder).
TBOR The width of the cable tray.
TREF The name of the item to which the branch tail is connected (i.e. Tref TEE 1 of BRANCH /CTRAY_YY2/B1). If this is not set, then the branch is open.
It is not necessary to specify each of these attributes every time a branch is created. On most occasions the attributes for the head or tail are set automatically (i.e. where a branch is connected to a tee).
Direction of Flow Riser (Elbow) Riser (Elbow) Head Tail
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2.6
Cable Tray Creation
To display the Create Cable Tray Main form the user must select Create > Main from the main pull down menu at an appropriate hierarchical level, i.e. a ZONE.
The Create Cable Tray Main form is now displayed. The user can enter a name for the cable tray and select a specification that will be applied. Clicking the OK button will create the administrative elements for the cable tray in the design hierarchy. It will also switch to the Create Cable Tray Branch form afterwards.
The Create Cable Tray Branch form is auto populated with a branch name and specification inherited from the owning cable tray. Selecting the OK button will create a new branch in the cable tray and automatically open the Branch at Explicit Position form.
2.7
Cable Tray Branch Head / Tail Positioning Explicitly
A new branch must have two ends (its Head and its Tail) positioned in the design model.
When a branch is created, the Branch at Explicit Position form is displayed. This form is used to position and orientate the branch head and tail explicitly and define the connection type for each.
The Branch at Explicit Position form may also be shown by selecting Modify > Branch > Explicit
The form can be used to:
Set the Head / Tail option button to show the end of the branch desired to position and orientate.
Define the Position by entering the required coordinates in the X, Y and Z text boxes, using the option buttons to set the appropriate direction in each case.
Use the Width option button to change the tray width at the Head / Tail if required.
Enter the Direction in which the head / tail is to be orientated.
Use the Connection option button to select how the tray is to be terminated at the Head / Tail. The options are Open where the end will be left open for connection to another tray length (in another branch) or Boxing where the end will be closed to terminate the tray length.
If the Branch at Explicit Position form is used to change the width of an existing branch, allcomponents owned by the branch must be reselected so that they are compatible with the new width.
To do so, navigate to the branch and select Modify > Branch > Reselect. A Reselect Branch form will
be displayed. On clicking Apply, all branch components will be reselected automatically in the
hierarchical order. Depending on the current Choose options for the cable tray, it may be necessary to choose from the available types for some components. (Note that the Choose form applies to the component next to the one highlighted in the Design Explorer, not to the current element)
Selecting components with different sizes in a preconfigured pipelineor cable tray network can lead to incorrect geometry. Check the effects by studying the 3D View and, if necessary, by running a Data
Consistency Check
2.8
Cable Tray Branch Components (Fittings)
On initial definition of a branch head and tail, the branch will consist of one piece of cable tray running in a straight line between the head and tail positions. This will appear as a dotted line between the two points unless the head and tail are aligned along a common axis. (The dotted line indicates that the branch route is geometrically incorrect.)
The next step in designing a cable tray is to create and position a series of fittings, which define the cable tray route required. It is necessary to decide which cable tray components are needed in order to satisfy the requirements of the process and the design needs. It is not necessary to know specific fitting dimensions, as AVEVA Marine derives these automatically from the catalogue.
To create cable tray fittings the user must select an item from the list of fittings available from the associated cable tray specification. The main types of fitting available are Bends, Elbows (Risers), Tees, Reducers, Crosses, and Fixed Tray (FTUB).
For all cable tray components the user must:
Select the component from the cable tray specification.
Position the component and set the orientation. Head
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2.8.1 Creating Branch Components (Cable Tray Fittings)
The user can create cable tray fittings by selecting Create >
Componentsfrom the main pull down menu.
The Cable Tray Component form shows all the component types that are available in the current cable tray specification.
It is possible to select components from an alternative specification by reselecting from the Cable Tray options pull-down list.
Normally Branch Members are defined in Forwards mode, that is, one after the other, starting at the Head. Sometimes it is more convenient to build the branch from the Tail first, in which case, Backwards mode is more appropriate.
If the Auto Conn check box is checked, this will ensure that components are automatically connected to the previous component (or to the Branch Head if it is the first component).
Components are created by selecting the required fitting from the scrollable list and then clicking the Create button. The CHOOSE form displays all available components for the specification selected.
After selecting the initial component from the CHOOSE form and clicking OK button, the Open Tray Direction form will open. The user must set the tray direction by entering a valid direction in the text box then click the
OK
button.
2.8.2 Selecting the Component from the Specification
On selection of a component from the catalogue, there are often a number of choices available. The description of the component item can be presented in one of three ways.
Basic the least amount of information is displayed.
Text description and material displayed. All all available data is shown.
The manner in which component information is displayed is changed by selecting Settings > Choose
Options. This will display the Choose Options form.
This selection criteria setting will determine the amount of information displayed. Auto Connect can also be set from this form. Below shown the effects of Selection Criteria options on the CHOOSE form.
Basic
All
Text
2.8.3 Branch Component List Order
With equipment and structures, the order in which items are created is of no importance to the final design. With cable tray components, the order in which they are laid out, as well as their individual positions and orientations, determines the final cable tray route.
Below is a Design Explorer window showing the components of a typical cable tray. The current element is highlighted.
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Any new item in the branch appears after the current element on clicking Create button. The new item then becomes the current element. The only slight deviation from this is for a new branch, in which case the new item will be the first item in the branch.Hierarchical order will become second nature after the creation of a number of branches, but for the time being remain aware of it and consider carefully where the next item is going to be inserted.
2.8.4 Automatic Positioning and Orientation of New Components
On selection of a component, in many cases, it is not necessary to go through the stages of positioning and orientation. This is because the component is automatically connected to the previous one.
2.8.5 Positioning and Setting the Orientation of Components
Having created and chosen a component, the next stage is to position it. If it is the first component in the Branch the Open Tray Direction must be specified.
Components can be positioned using the Distance button on the Cable Tray Components form. After the component is created, entering a value in the Distance textbox and clicking the Distance button will move the component that distance from the previous component.
Components can also be moved by using any selection from the Modify, Position or Orientate options from the Cable Tray Application menu.
2.8.6 Arrive and Leave Points
Cable tray components have P–points (similar to those for equipment primitives). The significance of P– points is two–fold. First, they define the connection points, and second, they determine the branch flow through the component by means of Arrive and Leave attributes.
For the reducer shown below, the large end is at P1 and the small end is at P2. If this component is used to increase the width of the branch, the flow in the direction of the branch will be from P2 to P1. In order to specify in the flow direction in AVEVA Marine, set the two numeric attributes, Arrive and Leave, to the P– point numbers required. In this case, Arrive would be set to 2 and Leave would be set to 1 (By default, Arrive is 1 and Leave is 2).
Reducer Bends
Tees Elbows or Risers
P1 Z P2 P3 Y X P1 P0 P2 X Z Y P1 P2 P0 X Y Z P3 P0 Y X Z P1 P2
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Exercise 1 - Create a Cable Tray
1. Prior to creating a cable tray the correct hierarchy must be present in the design explorer. Navigate to the WORLD level then create a new SITE named CABLE. Under the SITE CABLE create a new ZONE named 101C-CABLEWAYS
2. Create the Cable Tray Main CTRAY_YY010 and set the specification to SCTG. 3. Create the Branch CTRAY_YY010/B1.
4. Position the Branch Head, X 2500, Y 2000, Z 14500 and the Tail -X 3000, Y 2000, Z 13250. 5. Set the width as 600mm for the Head and 450mm for the Tail and the direction to -X for the Head
and X for the Tail.
6. Set the connection to Open for both Head and Tail.
7. Create two Riser components by working forward from the Head position. Ensure the Auto Connect check box is selected then add a 90 degree Outer Riser (OR) to the head of the branch. Set the tray direction to Z. Add a 90 degree Inner Riser (IR) to the previous elbow. Set the graphical view to ISO4. The branch should look like this:
Save Work.
Head
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CHAPTER 3
3
Connecting and Positioning Cable Tray Components
A Connect command both Orientates and Positions the current component so that its P-arrive is directed towards, and is aligned with, the P-leave of the previous component (in forwards mode). Unless overridden, Connect function also checks that the components to be connected have compatible connection types (as defined by the Connection Compatibility Tables in the Catalogue database).
Before starting the worked examples covered in this chapter, some Cabletray elements need to be added to the 3D view. These elements are created by the input file ‘CTRAY_YY2_DATAL.txt’ added below the World. This will automatically add SITE CABLETRAY_TRAINING_YY2 to the design Explorer, and
CTRAY_YY2 to the 3D view.
Save work.
3.1
Connecting the Branch Head or Tail
A variety of branch connection options are
available to the user. Users can access connection options by selecting Connect > Branch from the main pull down menu.
This will open the Connect Cable Tray Branch form.
It is important that the user is located at branch level (or below) in the designhierarchy when the command is actioned. If the user is not at the correct level a warning message will be displayed as shown
The Connect Cable Tray Branch form allows the user to set the connection details of both the head and the tail of the selected branch. The user can toggle between the head or tail by making an appropriate selection from the option list in the top left corner of the form. The branch to which the connection is being applied is displayed next to the head/tail selection.
The ‘To’ option list provides a variety of connection options that can be applied to the branch.
The form contains a CE button which allows the user to set the connection details of several cable tray branches without closing the form.
The base of the form contains three buttons. The Apply button actions the connection details set in the form. The Reset button will return the form to the default settings. The Dismiss button closes the form cancelling any connection details that may have been set but not applied.
When a new branch is created the Branch at Explicit Position form is opened automatically. If theuser wishes to connect the new branch to an existing branch they must dismiss the Branch at Explicit
Position form then access the Connect Cable Tray Branch form as described previously
3.1.1 Connect to First Member
In this worked example the Branch head is going to be connected to the first member of the branch. Navigate to the Branch level or below for CTRAY_YY2/B1.
Select Connect > Branch, the Connect Cable Tray Branch form appears. Select Head to First Member and then click Apply. The Head position is moved to the first member (component) in the Cable Tray.
The following sections describe the other options available using the To pull down menu in the Connect Cable Tray Branch form
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3.1.2 Connecting to Tee
On applying the Tee option, the user is prompted to make a graphical selection of the tee to connect to. As two of the three P-points available at the tee are already utilised, the application will automatically select the free P-point and connect the branch to that point.
Main Branch with through Tee New Branch Connected to Tee
3.1.3 Connecting to Multi-way
On applying the Multi-way option, the user is prompted to identify the design point to connect to. As multiple points are potentially available to connect to, the user cannot simply select an element. An individual P-point within the multi-way element must be selected.
3.1.4 Connecting to Branch Head
On applying the Branch Head option, the user is prompted to identify the branch to connect to. A graphical selection of any valid branch can be made and any part of the branch can be selected. The application will then derive the head position of the selected branch and update the head/tail detail of the connecting branch.
3.1.5 Connecting to Branch Tail
On applying the Branch Tail option, the user is prompted to identify the branch to connect to. A graphical selection of any valid branch can be made and any part of the branch can be selected. The application will then derive the tail position of the selected branch and update the head/tail detail of the connecting branch.
3.1.6 Connect to Last Member
On applying the Last Member option, the head or tail position will dynamically update to the position of the last member in the branch, in a similar manner to Connect to First Member covered in 3.1.1
3.1.7 Connect to Name
On selecting the Name option from the Connect Cable Tray
Branch form, the Name pop up form is opened.
The user must enter the name of a valid AVEVA Marine element present in the model. The name will be checked, and if valid, displayed adjacent to the To options list in the Connect Cable
Tray Branch form. The user must then click the Apply button to connect the head/tail.
Where another branch element has been selected, the user will be prompted to select whether the head or tail of the named element is to be used as the connection point.
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3.2
Connecting a Component
Individual components can be connected to each other using a variety of options. The Connect menu contains two component connection options. Command line syntax can also be used to connect components. In addition to these options, components can be connected when they are created.
3.2.1 Connecting Components at Creation
Selecting the Auto Conn check box on Cable Tray Components form when creating components will ensure that the components are connected.
Navigate to the last member of branch CTRAY_YY2/B1. A Bend is to be added after the straight FTUB1.
From the main menu select Create > Component, the Cable Tray Component form appears. Ensure the
Auto Conn checkbox is selected. Select Bend and then click Create. The CHOOSE form appears, select
the LH 90 bend and click OK
The bend is created, and is connected to the previous component.
3.2.2 Connect To Previous
The user can connect a component to the previous component in the branch hierarchy.
Navigate to BEND1 in branch CTRAY_YY2/B1, either by graphically selection or selecting in the Design Explorer.
Select Connect > Component > To Previous from the main pull down menu. This will connect the selected component to the previous
component listed underneath the branch in Design Explorer, in this case TEE1 as shown below.
Initial Component Layout – No Connection Elbow Connected Using Connect To Previous
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3.2.3 Connect To Next
As with Connect to Previous, the user can connect a component to the next
component by selecting Connect > Component > To Next from the main pull down menu. This will connect the selected component to the next component listed underneath the branch in Design Explorer.
The following example shows an instance where BEND 1 has been selected and connected to FTUB 1.
Initial Component Layout – No Connection Elbow Connected Using Connect To Next
3.3
Displaying Cable Tray Obstruction Level
While the cable tray route is being designed, it may be necessary to show the obstruction level of the cable tray. This is done by changing the obstruction volume representation level of either the branch or a
component.
Selecting Settings > Graphics from the main pull down menu will open the Graphics Settings form. The representation of the obstruction volume is controlled on the Representation Tab. The obstruction option list allows the user to alter the transparency of the obstruction volume.
When using Positioning options for the cabletray, it is not possible to select component Ppoints throughthe cabletray obstruction volume. Ppoints can be selected from the underside of the tray component, and also can be selected if the graphical view is toggled to wireframe.
Note the Cabling tab from the Graphics Settings form is not used in this Cable Tray application. The3.4
Positioning Cable Tray Items
The majority of positioning options for cable tray items can be performed from the Cable Tray Components form when the component is created. The positioning pull down menu has the following options:
Thro Cursor Thro ID Cursor Thro Point Thro Next Thro Tail Thro Previous Thro Head Connect A cursor-identified 3D position Cursor-identified item An identified P-point The next item in the Branch The tail of the Branch
Theprevious item in the Branch The head of the Branch
Connects to the previous component
This example demonstrates the Thro ID Cursor option. Navigate to BEND 2 on branch CTRAY_YY2/B1. From the pull down menu select Create > Component, the
Cable Tray Component form appears. Select Bend and then click Create. The CHOOSE form appears, select the RH 90 bend and click OK.
In the Cable Tray Components form, select Thro ID Cursor. The user is prompted to ‘Identify element’. Select TEE1.
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The Bend is moved along its axis to theposition of TEE1.
Dismiss the Cable Tray Components
form.
3.5
Positioning Components
The Position Component options enable the user to move a component without specifying a direction. The direction of movement is the direction of the component. The options are as follows:
Distance Through Clearance
Plane Through
Plane Clearance
Moves the component by a given distance. Moves the component along a given point. Moves the component to within a given clearance of a give item or point.
Moves the component along the line of the branches so that the component moves until it intersects a plane through a given point.
Extends the arrive tube so that the component moves until it is within a given clearance of a plane through a given point.
3.5.1 Distance
Distance function allows the user to position a component at a given distance from a specified point. The direction of movement and the distance are along the current components arrive/leave axis.
Selecting Position > Component > Distancefrom the main pull down menu will open the Distance form. A positional axis will also appear on the component in the graphical view.
The user must then enter the distance required. Two option lists below the distance text box control how the nominated distance will be applied. Depending on the configuration selected, cursor picks or additional data entry may be required.
A CE button is provided on the form allowing several components to be positioned without closing the form.
Positioning options on the pull down menus are as follows: Only Spool Only Infront / Behind Onto / Under From / To
Positions relative to the previous item. Positions component at given distance from next to achieve required tube length between them.
Can be used for any direction in a plan view. Distance is measured along direction of movement, relative to a specified point Can be used for any X, Y, -X, or -Y view direction. Distance is measured along direction of movement, relative to a specified point. Can be used with any direction in an elevation view. Distance is measured along direction of movement, relative to a specified point.
The second pull down specifies the reference point from which the distance is measured. The choices are: Cursor ID Cursor ID P-Point Coordinate Name Pin Next / Previous Head / Tail Current A cursor-identified 3D position
A cursor-identified item whose origin is at the required position.
A cursor-identified P-point at the required position An explicit position whose coordinates you will enter
A named item whose origin is at the required position
A numbered construction pin at the required position
Adjacent component in branch members list. Head or tail of owning branch.
Current item (used to reposition component when previous item in branch members list has been moved).
The Apply button allows the user to action distance modification, Reset allows the user to return to the
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In this example BEND 3 of branch CTRAY_YY2/B1 will be moved 1500mm from the previous component. Make BEND 3 the CE. On the Distance form, select From and Previous from the pull-down menus. Enter a value of 1500 in the Distance text box and click Apply. The bend is moved 1500mm from the previous component (BEND 2).3.5.2 Through
The Through function allows the user to align a component with a specified point. The direction of movement is along the current components arrive/leave axis
Selecting Position > Component > Throughfrom the pull down menu will open the Through form.
The Through option list provides a variety of positioning options that can be applied to the branch.
Like the Distance form, the Through form has a CE button allowing the user to position several components without having to close the form.
In the following example, the Tail option will be applied. Other combinations will require the user to either pick with the cursor or enter data on the resulting form, depending on the way the user chooses to specify the position as previously described.
With BEND 3 the CE, select Tail from the pull-down menu and click Apply. The elbow moves along its Arrive axis and lines up with the branch Tail.
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3.5.3 Clearance
This function allows the component to be moved to a given clearance from a specified point. The direction of movement is along the current components arrive/leave axis.
Selecting Position > Component > Clearance from the pull down menu opens the Distance form.
The user must then enter the clearance required. Two option lists below the clearance text box control how the nominated clearance will be applied. Depending on the configuration selected, cursor picks or additional data entry may be required.
A CE button is provided on the form allowing several components to be positioned without closing the form.
In the following example, BEND 3 will be moved so it has a clearance of 200mm behind the leave Ppoint of BEND 2.
With BEND 3 the CE, select Behind and ID P-Point from the pull-down menu, enter 200mm in the Clearance text box and click Apply. The user will then be prompted to ‘Identify design ppoint’. Select the leave Ppoint of BEND 2 as shown. The elbow moves along its Arrive axis to a position 200mm clear of the selected Ppoint.
Dismiss the Distance form.
When using the commands Component>Position, Component>Clearance. etc on a BEND or RISER3.5.4 Plane Through
This function allows the user to move the component until it intersects a plane through a given point. The direction of movement is along the current components arrive/leave axis.
Selecting Position > Component > Plane Through from the pull down menu opens the Plane Through form.
The user must define a plane by specifying its direction (defined as the direction normal to the plane’s surface) and a point through which it passes.
The user must enter the plane direction in the Plane text-box. Then the reference point through which the plane passes can be selected from the Through options list as described previously.
A CE button is provided on the form allowing several components to be positioned without closing the form.
3.5.5 Plane Clearance
Plane Clearance function allows the user to move the component until it has a given clearance distance from a plane through a given point. The direction of movement is along the current components arrive/leave axis.
Selecting Position > Component > Plane Clearance from the pull down menu opens the Plane Clearance form. An axis aid is displayed on the component to be moved.
The user must define a plane by specifying its direction (defined as the direction normal to the plane’s surface) and a point through which it passes.
The user must enter the plane direction in the Plane text-box and a clearance distance (that will be applied from the plane) in the Clearance text box.
Two option lists below the clearance text box control as described previously how the clearance will be applied, relative to the plane, and the point through which the plane will pass.
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Exercise 2 - Adding and Positioning Components
1. Using Position function(s) move the inner riser of CTRAY_YY010/B1 to Z 13250 (the Z value of the branch tail).
2. Add a Tee with current bore and a 450mm Reducer respectively.
3. Position the components as shown using the Position > Component commands.
Save Work.
1500
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CHAPTER 4
4
Branch Re-routing and Connection References
4.1
Swap Branch
The Swap Branch function allows the user to change the offline leg direction of a Tee. Before carrying out the Swap Branch command it is necessary to
know the orientation of P-points at the selected component. The orientation can be checked by selecting Query > General from the main pull down menu. This will display the Query form. Using the appropriate options list the various P-points of the selected component can be checked.
After establishing the orientation of the P-points the user can re-orientate the component. A Tee can be rotated through 180 degrees, so that the direction of its offline leg (P3) is reversed, by navigating to the Tee and selecting Orientate > Component >
Swap Branch from the pull down menu.
The component immediately updates in the graphical view. The new orientation can be confirmed by re-checking the P-point orientation using the Query > General function.
In order to retain the correct orientation for the open side ofthe tray, this operation results in the arrive (P1) and P-leave (P2) directions being reversed. To maintain
connectivity, P-arrive is reset to P2 and P-leave is reset to P1 automatically
4.2
Change Exit
The Change Exit function allows the user to change the Branch Direction at a Tee or Bend. By default, P-arrive for a tee is set to P1 and P-leave is set to P2. The off-leg (for connection to another branch) is set to P3.
The P-leave of a tee can be changed from P2 to P3. This is achieved by navigating to the tee then selecting
Orientate > Component > Change Exit. This function allows the user to toggle the P-leave point between
P2 and P3.
The same function can also be applied to a Bend to change the direction of the P-leave point. It swaps the P-arrive and P-leave, so that P1 is P-leave, and P2 is P-arrive.
4.3
Changing Branch Routing at a Tee
By default, the P-arrive of a tee is set to P1 and the P-leave is set to P2, so that the branch route continues straight through the tee. It is possible to change the P-leave such that the branch route enters or leaves the tee via P3. This is achieved by selecting Modify > Component > Route from the pull down menu. This opens the Modify Route form.
Three radio button options are available to the user. As previously described the default setting is the Route Through option. Selecting the Branch Off option will change the P-leave point to the orthogonal branch of the tee (i.e. P3). Selecting the Split Route option will change the P-arrive point to the orthogonal branch of the tee. The P-leave point will be at P2.
Once the desired configuration has been selected the user must click the Apply button to instigate the change. The tee orientation will immediately update to suit the new configuration.
The form also contains a CE button which allows the user to modify the configuration of several tee components without closing the form.
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4.4
Changing a Component Connection Reference Explicitly
On connection of a multi-way component within a branch to another item (such as a nozzle, or the head or tail of another branch), the Connection Reference (CREF) attribute of the component identifies the
connected item.
To unset the component reference, or connect it to a different item, the user must select Modify >
Component > Connection Ref from the pull down menu. Doing so will open the Connection Reference
form.
The appearance of the Connection Reference form will vary depending on the number of offline legs held by the cable tray component being modified. For a component with only one offline leg (i.e. a tee), the
Connection Reference form will only display the connection reference for the offline leg (usually P3).
Components with more than one off-line leg have a CRFA attribute which is used to store the connection reference at each P-point. For components with more than one offline leg (i.e. a cross), the Connection
References form displays an options list and a reference text box. The connection reference for each
P-point can be checked by selecting the desired P-point from the options list.
The connection reference can be removed by clicking the Unset button adjacent to the reference text box. The connection reference can be changed to another item by entering the item name in the reference text box then clicking the Apply button. Clicking the Reset button will restore the last connection references written to the database.
Applied connection references will be written to the database when the form is applied
Changing the connection reference does not change the position or orientation of any components, soExercise 3 – Branch Routing
Using the TEE in CTRAY_YY010 created in Exercise 2, try out the different Branch Routing options, Route
Through, Branch Off and Split Route.
Ensure the TEE is left with the Route Through option at the end of the exercise.
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CHAPTER 5
5
Positioning Commands for Branch Head/Tail
Before starting the worked examples covered in this chapter, an additional branch needs to be added to the 3D view. This branch is created by the input file CTRAY_YY2_BRANCH2.DATAL added below the PIPE CTRAY_YY2 in the Design Explorer. This will automatically add the branch to the 3D view.
Selecting Position > Branch from the pull down menu displays a range of positioning options available to the user. General Distance Through Move Drag
Positions the Head / Tail at a given point Moves the Head / Tail along the current branch direction until it is a given distance from a given reference point
Moves the Head / Tail along the current branch direction until it is aligned through a specified point
Moves the Head / Tail in a given direction by a given Distance, Through a given point, or to within a given Clearance of another item Allows you to move a constrained network in a given direction by a given Distance, Through a given point, or to within a given Clearance of another item
5.1
General
Selecting Position > Branch > General from the main pull down menu displays the Branch at General Position form. An axis aid is also displayed in the graphical view.
The user can select whether the branch head or tail will be positioned by making the appropriate selection from the options list in the top left corner of the form.
The user can then select from a range of positioning points from the ‘At’ options list. Subject to the positioning point selected, the user will be prompted to make a graphical selection or enter further data.
Once the positioning point has been established the user can position the branch by selecting the
Apply
button.The form contains a CE button allowing the user to modify several branches without closing the form.
In this example, the Head position will be moved using ID P-Point. Select Position > Branch > General, set the pull-down menus at Head and ID P-Point. And click Apply. The user is prompted to ‘Identify design ppoint’. Select off-branch P3 Ppoint of TEE1 of branch CTRAY_YY2/B1 as shown.
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5.2
Distance
Selecting Position > Branch > Distance from the main pull down menu displays the Position form. An axis aid is also displayed in the graphical view.
The user can select whether the branch head or tail will be positioned by making the appropriate selection from the options list in the top left corner of the form. A value must also be entered in the distance text box.
The user must then stipulate how the distance will be applied and where it will be applied from. This is done by making selections from the two option lists below the distance text box as previously described.
Once the positioning point has been established the user can position the branch by clicking the Apply button. The form contains a CE button allowing the user to modify several branches without closing the form.
In this example, the Head position will be moved by a specified distance Behind an ID Ppoint.
Select Position > Branch > Distance, set the pull-down menus at Head, Behind and ID P-Point. Set the Distance textbox to 500mmand click Apply. The user is prompted to ‘Identify design ppoint’. Select off-branch P3 Ppoint of TEE1 of branch CTRAY_YY2/B1 as shown.
5.3
Through
Selecting Position > Branch > Through from the main pull down menu displays the Position form. An axis aid is also displayed in the
graphical view.
The Through command allows the Head or Tail of the branch to be aligned with a specified point. The direction of movement is along the current Head/Tail direction.
The user can select whether the branch head or tail will be positioned by making the appropriate selection from the options list in the top left corner of the form.
The ‘Through’ option list provides a variety of positioning options that can be applied to the branch. Once the positioning point has been established the user can position the branch by selecting the
Apply
button. The form contains a CE button allowing the user to modifyseveral branches without closing the form.
In this example, the Tail position will be moved along its axis to align with a specified Ppoint.. Select Position > Branch > Through, set the
pull-down menus at Tail and ID P-Point and click
Apply. The user is prompted to ‘Identify design
ppoint’. Select a Ppoint on BEND1 of branch CTRAY_YY2/B1 as shown.
The branch Tail aligns with the selected Ppoint, along its axis.
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5.4
Alternative Positioning Forms
The following forms can be used to compliment other positioning and editing functionality covered in this guide. For the purposes of cabletray modelling there are four main forms to consider which are all available from the application pull-down menu:-
Move form - accessed using Position > Move…
Drag Move form - accessed using Position > Drag…
Move Branch form - accessed using Position > Branch > Move…
Drag Move Branch form - accessed using Position > Branch > Drag…
5.4.1 Move Form
Navigate to BRAN CTRAY_YY2/B1 and select BEND 1 to demonstrate the
Move form.
The Move form is used to move the current element in a given direction. This can be a specified distance in that direction, to a position relative to another element, or relative to a plane through a given component. All of the forms have four common tabs:-
Distance
Through
Clearance
Towards
5.4.1.1 Distance Tab
The Distance tab allows the user to move the current element so that its origin or nominated PPoint moves a distance in a given direction.
The Parameters section of the Move form allows the user to set the following:-
Origin – using a scrollable to select Origin, Arrive or Leave.
Distance
Direction
WRT – sets the frame of reference for the direction of movement
With Respect To a specified element.
Movement Direction
The WRT setting can be influenced by the four buttons as explained:- - Direction with respect to itself
- Direction with respect to owner or first ancestor that has an orientation - Direction with respect to the World
- Direction with respect to a picked element
For very simple movements the Parameters section of the form can be employed on its own with the Target section using the Relative To setting of No Target, for example:-
Before After
However the Target section of the form provides additional functionality:-
Relative To - allows the user to select from numerous options to determine how the element is
positioned in relation to the target element or position.
In Front / Behind
On Top / Under From / Towards
Distance Under Distance On Top Movement Direction Distance To Movement Direction Distance From
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With the Relative To option set to something other than No Target, the Select options become available to the user. The setting of this option determines how the remainder of this form will function as shown:-Selecting the Element option allows the user to specify the element to be referenced either by keying in the name or by clicking the Pick Target Element button and indicating the element in the 3D View.
Alternatively, selecting the Position option forces the users to click the Pick
Target Position button. This allows the user to use the Positioning Control
toolbar to perform an EDG pick to specify the position in the 3D View.
The resulting position is indicated in the 3D View as an aid as shown.
In this case the Ppoint on the straight cabletray element has has been used, however the used can pick Ppoints on hull or other outfitting elements.
The remaining options of Next, Tail, Previous, Head and Current require no additional input.
Checking the Plane Through Target check box allows the user to specify the direction of the Plane. The current element is moved so that its origin moves a given distance in a given direction, where the distance is measure from intersection of direction of movement and the reference plane. The reference plane is specified relative to the element or position nominated in the Select scrollable list.
Movement Direction
Plane Through
5.4.1.2 Through Tab
The Through tab allows the user to move the element in a given direction until it reaches a point or is relative to a plane perpendicular to the direction of movement through another point.
The Parameters section of the form is identical to that detailed for the
Move tab with the exception that there is no Distance input text box.
Unlike the Move tab the Target section must be used to perform an operation. The Target section of the form is similar to that detailed for the Move tab. However there is no Relative To scrollable list and the
Through scrollable list is the same as the Select version on the Move
tab.
Checking the Plane Through Tangent check box allows the user to specify the direction of the Plane. The current element is moved so that its origin moves to the intersection of the direction of movement and the reference plane. The reference plane is specified relative to the element or position nominated in the Through scrollable list.
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Clearance Behind Movement Direction Clearance In Front5.4.1.3 Clearance Tab
The Clearance tab allows the user to move the element in a given direction so that its obstruction volume or a Ppoint is a given clearance from another element. The clearance is measured in the same direction as the movement.
The Parameters section of the Clearance tab differs slightly in that the Origin also contains an All option which allows for any obstruction volumes. The user can also specify the amount of Clearance required.
The remainder of this form works in the same fashion as the
Move tab.
The illustration below shows how the Clearance tab can be used in conjunction with the Relative To options to great effect.
In Front / Behind Movement
Direction
Clearance Under Clearance On Top Movement Direction Clearance To Movement Direction Clearance From
On Top / Under From / Towards
Towards Tab
The Towards tab allows the user to move the element a given distance in a direction specified in terms of another element.
The Towards tab is much simpler than the previous tabs, but uses the
Parameters and Target sections in an identical manner
Movement Direction Towards Target Distance
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5.4.2 Move Branch Form
The Move Branch form is identical to the Move form with the
exception of the Origin option in the Parameters section of the form. The only options available are Head and Tail.
As implied the form is only used to reposition the head or tail of the branch using the same methods as previously covered on the Move form.
5.4.3 Drag Move and Drag Move Branch Forms
The Drag Move and Branch Drag Move forms are identical to the Move and Move Branch forms except that it applies the Drag rules to a constrained network.
In the previous examples the positioning commands do not move the connected elements. The construction of the constrained network depends on the direction of the drag operation and the type of item to be dragged.
Refer to the Dragging Equipment and PipingNetworks section of the Design Reference
Manual for information relating to the
5.5
Quick Cable Tray Routing using the Model Editor
The Model editor allows the user to select and drag components along a specified direction and to rotate components around their origin point. The editor uses three handles:
Extend Route Handle This is used to extend the route in the direction indicated by the handle.
Cardinal Direction Handles These are used to move components in a cardinal direction
Rotational Handles These are used to rotate components about their origin.
For cable tray components the model editor should only be used to move components within the routedirection
The quick cable tray routing handle is used to define a routing vector within the constraints of the currently selected badly defined route. A badly defined route is defined in general terms as where either, there is a bad alignment between two components, the head or tail of a branch is incomplete, i.e. where the Head / Tail attributes are left in their default state, the Head / Tail is positioned but not connected and the Head / Tail connection type is unset.
This usually equates to the dotted line representation of implied ftube, where implied ftube cannot be drawn. An exception to the above could be where a cable tray Branch does not have specification reference set. The handle can be dragged by using either the LHS (left hand side) or RHS (right hand side) mouse buttons. By default the handle will move in multiples of the currently defined linear increments. If the RHS mouse button is clicked when the cursor is over the cable tray routing handle, the user will be presented with a context sensitive menu. The menu will display the available options which relate to the drag.
Modifying design elements with Model Editor is covered in the AVEVA Marine Outfitting Foundations(TM-2201) Training Guide Cardinal Direction Handles Extend Route Handle Rotational Handles
