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MP STUDIO 2 puts the ladder canvas in the middle of the screen and arranges the tools and information panels around it. The panels sit in columns on the left and right so that they do not cover the ladder, and you can show only the panels you need.

Depending on the situation, status pills are shown at the bottom of the right column.

• ① File buttons: New, Open, Save, Save As
• ② Document name: the name of the .mpl file you are editing
• ③ Device pill: connection state, model, and the scan time (SCAN) while monitoring
• ④ Tool buttons: Find&Replace, Used (used data), Symbol, Devices, Mnemonic, Communication, Options
• ⑤ Run buttons: Simulate, Connect (Ethernet connection), Monitoring, Download

Hover over a button to see its name and shortcut. Connect is shown only when the download channel is ETHERNET.

The device pill shows the state of the connection to the device in one place.

• ① Menus: Project, Edit, View, Search, Run, Setting, Help
• ② Program tabs: split the program into several tabs. Click + to add a tab.
• ③ Command bar: the address search box (Ctrl+F), the Zoom Out, Zoom In and Fit to Width buttons, and the zoom level
• ④ Panel toggle buttons: show or hide the Symbol Rail, Functions, Inspector, Watch, Command Bar and Status Pills. The rightmost button hides all panels.

Click + (Add tab) to the right of the tabs to create a new numbered tab such as Program 2. Double-click a tab name to rename it in place. Right-click a tab to open a menu with Rename Tab, Delete Tab, Duplicate Tab and Move Selected Rungs to This Tab. The first tab is named Main by default.

• Row numbers start from 0 on every tab.
• The device receives a single program made of the tabs joined in order.
• Switch tabs with Ctrl+PageUp and Ctrl+PageDown, and move a tab with Ctrl+Shift+PageUp and Ctrl+Shift+PageDown. You can also drag a tab to change the order.

The symbol rail buttons do the same as the function keys, and each button shows its function key below the symbol. The Functions button at the bottom opens and closes the Functions panel (Alt+2). The placement rules are described in Phase 3, and the Functions panel in Phase 4.

The ladder canvas shows rungs row by row, with power flowing from the left power rail to the right. Click a row number on the left to select the whole row.

• ① Row numbers: start from 0 on every tab.
• ② Cursor: the cell that is currently selected.
• ③ Error cell (red): a cell with a problem that prevents downloading.
• ④ Warning cell (orange address text): a cell that can be downloaded but should be checked.

The vertical bar on the right side of the canvas shows small colored marks where error and warning cells are.

Zoom in and out with Ctrl+= and Ctrl+-, and return to 100% with Ctrl+0. Select View → Fit to Width to fit one row to the width of the canvas.

The Inspector shows information about the cell under the cursor.

• ① Element and address: the element type of the cell (NO, NC, Coil, Fn and so on), its address, and its row and column
• ② Address, Symbol Name and Comment: the name and description registered in the symbol table. Click the pencil button to edit them.
• ③ Add to Watch: adds this address to the Data Table and the Watch card. An address that is already registered is shown as Watching.
• ④ Used at: a list of the cells that use the same address. Click a line to go to that cell.

During monitoring and simulation, the Current value is shown as well, and bit addresses get Force buttons (ON and OFF). If the cell has a problem, the reason is shown at the bottom of the Inspector.

The Watch card shows the addresses and values registered in the Data Table in a compact form in the right column. The watch list is remembered separately for each project file.

When there are no addresses to watch, No addresses to watch is shown. Click the Data Table button at the bottom right of the card to open the Data Table window.

The status pills show the connection state and model, the number of cells, the number of selected cells, the check result (Check OK or N cells with errors), the scan time (SCAN TIME) and firmware version while monitoring, and the open file name as small pills. They appear at the bottom of the right column when the Inspector is shown, and at the bottom right of the canvas when it is hidden.

The connection state and model are also shown in the device pill in the top band. How to move between error and warning cells is described in Phase 6 · Program Check.

You can show and hide panels from the View menu, with the panel toggle buttons at the right of the strip row, or with keyboard shortcuts. Which panels are shown is kept for the next launch.

Press Ctrl+K to open the Quick Actions window. Type part of a menu item name to find it and press Enter to run it. Each match shows the menu it belongs to and its shortcut.

• Phase 3 · Ladder Editing
• Phase 9 · Menus and Settings

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