Control Circuit 2026 › Tutorial › Chapter 1

Chapter 1: Your First Project

Goal Create a project, look at its settings, place a three-pole switch fuse on the sheet, and start wiring it up. About ten minutes, and nothing to prepare.

This chapter is deliberately small. Control Circuit has a great many tools, and you will not meet most of them today. By the end you will have a saved project with one real symbol on it, part wired, and you will know where the main parts of the screen are.

Worth knowing Everything a Sheet needs is saved inside the Sheet, so your work never depends on a library staying put. Two things to know before you begin.

Part 1: Start a project

  1. Launch the program and choose New

    The start screen lists your recent projects. On a first run the list is empty. Choose New.

    The Getting Started Guide link at the top right is always there if you want the overview first.

    The Control Circuit start screen with an empty recent projects list and Open, New and Close buttons
    The start screen. Double-clicking a recent project opens it immediately.
  2. Name the project

    The New Project wizard has four steps, listed down the left: Identity, Location, Standards and Review. Only the Project title is required; you cannot move on without one.

    The Identity step of the New Project wizard with the title field empty and a message saying a project title is required
    Step 1 of 4. The red message clears as soon as you type a title.

    Type a title. Here we use MySimpleCircuit. The project number, client and engineer are optional, and you can fill them in now or at any time later.

    The Identity step with the title MySimpleCircuit entered
  3. Choose where to save it

    Pick the folder that will hold your projects. Control Circuit creates a sub-folder named after the project inside it, so you never need to make one yourself. The full path it will use is shown underneath.

    The Location step showing the project folder and the resolved project file path
  4. Set the standards

    Two choices here.

    Wire cross-section units: mm² (IEC, metric) or AWG (North America). This only changes how wire sizes are displayed; mm² is what is stored underneath.

    Default border: the drawing sheet size. Pick one and stay with it.

    Border choice The border is a project-wide setting. It applies to every sheet, and changing it later moves everything drawn on them. A3 landscape is a sensible default if you are unsure.

    The list shows the common sizes; More… browses the rest. Later on you can build your own borders, including your own branding, with the advanced Border Management tool.

    The Standards step with millimetre-squared selected and A3 Landscape chosen as the default border
  5. Review and create

    The last page lists everything you chose. If anything looks wrong, use Back. Otherwise choose Create.

    The Review step summarising identity, location and standards, with unfilled optional fields shown as dashes
  6. Find your way around

    Your project opens with its first sheet, Sheet 1, already drawn with a border and a title block. Three things to notice:

    The main window with the project tree, Sheet 1 selected, and the drawing sheet beside it

Part 2: Project settings

  1. Reopening a project

    Close the project and you will see it at the top of the recent list on the start screen. Select it and choose Open, or simply double-click it.

    The start screen with MySimpleCircuit at the top of the recent projects list
  2. Project Settings & Properties

    The details you gave the wizard live here, together with a good deal more: revision, status, site and customer details, and comments. Whatever you enter flows into the title block and into reports.

    Changes are not final until you choose Save Changes. You will be reminded to save the project itself when you leave the sheet or close it.

    The Project Settings and Properties dialog on the Project tab, showing identity, customer and site details
    Project settings. Fields you left blank in the wizard stay blank here, ready to fill in.
  3. Custom Fields, and the other tabs

    The other tabs — Custom Fields, Drawing, Terminals, Node Styles and Options — are there when you need them. The grey Custom Fields are built in and can only have their values edited; you can add your own, and use them later in annotations.

    Skip for now You do not need any of these to finish this chapter. Close the dialog and carry on.
    The Custom Fields tab listing default fields such as AccountManager, ApprovalAuthority and ContractNo

Part 3: Place a symbol and start wiring

  1. Open the Symbols tab and choose a library

    Select the Symbols tab. The symbol library name is shown at the top; click the drop-down arrow to switch library. There are three to start with: IEC_BASIC, NFPA_BASIC and TERMS_BASIC. We use IEC_BASIC.

    Symbols are grouped by type: Coils/Contacts, Control, Power, Protection and so on. Expand a group with the +.

    The Symbols tab with the library drop-down open showing IEC_BASIC, NFPA_BASIC and TERMS_BASIC
    About those padlocks They simply mean the shipped libraries are protected, so they always stay exactly as shipped. You are never stuck with them: clone any symbol and adapt it into a library of your own, or build one from scratch. Got symbols from a CAD package? Bring them in from DXF. And with a PRO licence you can export a professional-quality PDF of any library to share with your team, your customer, or the public.
  2. Turn on the preview

    Right-click in the symbol list for a menu. Tick Show Preview so a drawing of the highlighted symbol appears beneath the list. Show Tooltips is worth having on as well.

    The same menu has zoom, tree appearance and Expand All / Collapse All.

    The symbol list right-click menu with Show Preview and Show Tooltips
  3. Find the symbol you want

    Expand Power and rest the pointer on 3P Switch Fuse V. The tooltip gives its ID, its default tag letter (Q), a description and typical real-world series. The preview shows the symbol.

    Search Not sure where a symbol lives? Type part of a word into the “Search symbols” box above the list. Every symbol in the selected library that partly matches is shown, with its groups opened for you. It looks at names, IDs, keywords, descriptions and typical hardware, so a partial word such as fuse, relay or motor is enough. Clear the box to see the whole library again. Search covers the library you have selected, so switch library to search another.
    The symbol 3P Switch Fuse V highlighted with its tooltip and a preview of the symbol below the list
  4. Drag it onto the sheet

    Drag the symbol from the list, or from the preview, onto the sheet and let go. Its six pins are numbered 1 to 6, and it has picked up the tag Q.

    The 3P Switch Fuse V symbol placed on the sheet with pins numbered 1 to 6 and the tag Q
  5. Switch to the Tools tab

    Select the Tools tab. The Wiring group has the Pointer, the wire tools and the Nodes you will use in a moment. The Drawing group below it has lines, shapes, text, notes and so on.

    Do not learn it all There are a lot of buttons. You will meet the others one at a time in later chapters. Today you only need the Nodes.
    The Tools tab showing the Wiring group with Pointer, Smart Wire, Free Wire, nodes and terminals, and the Drawing group below
  6. One & Done

    At the bottom of the Tools panel, the One & Done checkbox controls what a tool does after you use it. With it ticked, the tool goes back to the Pointer after a single placement; without it, the tool stays active so you can place several in a row.

    The status bar along the bottom of the window also tells you what you just did, for example Placed symbol: 3P Switch Fuse V.

    The bottom of the Tools panel with the One and Done checkbox, and the status bar reading Placed symbol
  7. Drop some nodes

    From Nodes, choose the S Junction node and click three times, once above each of the upper pins (1, 3 and 5), roughly in line with them. They show as red T shapes.

    Nodes are the building blocks of a circuit: they mark where a wire starts, ends, turns or joins another. A T-shaped Junction can point N, S, E or W, which is why the palette has four of them. The letter is a compass direction: the middle branch of the T, the stem, points that way. An S node has its stem pointing down the sheet.

    Three red Junction nodes placed above pins 1, 3 and 5 of the switch fuse
  8. Auto-wire

    Open the Wiring menu and choose Perform Auto-Wire, or press Alt+W. It draws the wires it can infer between aligned pins and nodes on the current sheet.

    Undo Auto-Wire takes an undo snapshot first, so if you do not like the result, one undo puts it back.
    The Wiring menu with Perform Auto-Wire highlighted, showing the shortcut Alt+W
    The Wiring menu is also where you will find the Connectivity Engine, numbering and the wire-type library.
    Auto-Wire is only the start It is a fast, convenient one-off pass, and Control Circuit has more help where that came from. Auto-Connect (F8) wires as you work: line a node or pin up with another and the wire appears, move it out of line and the wire goes. It can cut the effort of connecting your symbols and nodes dramatically. You will meet it properly in a later chapter.
  9. Done

    Three wires now run from the pins up to the Junction nodes. You have a saved project, a real symbol, and a semi-wired circuit.

    Three wires connecting pins 1, 3 and 5 of the switch fuse to the Junction nodes above

What you just did

Next

Chapter 2 explains how wiring works and the tools and methods for it, including the Auto-Connect mode mentioned above. Until then, the reference topics behind this chapter are in the program's help (F1): Project Workflow, Perform Auto-Wire and Working with Wiring.