Multi-screen and TV display

The Live window spanning several monitors, a separate screen opening on each monitor, per-screen tags and the TV display that shows screens in turn on the second monitor or on TVs in the network. The TV display (second monitor) and Network TVs tables in Studio.

Three ways

There are three ways to spread the display over several monitors. The TV display can be used together with the other two; only on the monitors used by Live does the TV display not open.

Multi-screen

1. Determine the screen size

   In Live settings › General › Multi-Screen, select Number of screens, Screen layout (Side by side, Stacked, Grid (two rows); for the fourth option Separate page on each monitor see below) and Monitor resolution. The strip on the tab gives the screen size that exactly covers this layout (e.g. 2 monitors side by side, each 1920 × 1080: 3840 × 1080).

2. Set the screen to this size

   In the Screen properties › Layout › Preset sizes section of the screen, select the recommended size. If the ratio does not match, the screen is fitted proportionally and empty space remains on the displays; the strip warns about this.

3. Leave full screen on

   If the Open in full screen option is off, multi-monitor mode is not applied and the window opens on a single monitor (Studio shows a warning).

• Monitors are ordered from left to right by their position in Windows (top to bottom if equal); starting from the monitor on which the Live window opens, the requested number of monitors is covered. If there are not enough monitors to the right, the selection shifts to the left. If fewer monitors are connected than requested, all connected monitors are covered.
• The screen is fitted proportionally to the area it covers. Screen layout and Monitor resolution are only used to calculate the recommended size; Live uses the real monitor positions.
• On covered monitors, the second-screen TV display does not open; if no uncovered monitor is left, the TV display does not open at all (Studio warns you).

Separate page on each monitor

In this layout, the Live window is only on its own monitor (monitor 1). On each of the other monitors, a separate window opens and shows the screen selected in Studio. Example: overview on monitor 1, alarm and trend screen on monitor 2. The operator navigates to a separate screen on each monitor and operates there.

1. Select the layout

   In Live settings › General › Multi-Screen, select the Number of screens (number of monitors including the Live window) and Screen layout: Separate page on each monitor.

2. Select the screen for each monitor

   A field appears for each additional monitor: Monitor 2 page, Monitor 3 page … The list contains only full screens (no pop-up windows, templates or design screens). If (start page) is selected, the start screen opens on that monitor. Monitor 1 is the Live window and opens with the Start screen.

3. Size the screens to fit the monitor

   Each screen is fitted to a single monitor; the summary below the card shows the recommended size (e.g. 1920 × 1080) and which screen opens on which monitor.

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1. Number of screens — the number of monitors, including the Live window.
2. Screen layout — Separate page on each monitor.
3. Monitor 2 screen — the screen opened on the second monitor.
4. Summary — which screen on which monitor.

• Additional monitors are used in the order of their numbers in Windows (except the monitor of the Live window and the monitors it covers in full screen). If fewer monitors are connected, only as many screens are opened as there are connected monitors. When a monitor is plugged in or unplugged, the windows are rearranged.
• The additional monitor window has no frame; it does not appear in the taskbar or in the Alt+Tab list, and the operator cannot close it. While Live is in full screen, these windows also stay on top.
• The session is shared: whichever monitor the operator logs on or off at, it applies to all monitors; the password is verified by the Live window. Changing the language on one monitor changes the language of Live.
• Values and alarms come from the Live window (every 200 ms); writes, alarm acknowledgement and recipe operations are applied in the Live window. Screen opening events also run on the additional monitor's own screen. On an additional monitor, the on-screen keyboard opens according to the station setting.
• The system menu of an additional monitor shows Monitor 2. Closing the program and the station settings (on-screen keyboard switch) are only in the menu of the Live window; if you try them on an additional monitor, the notification This action is done from the main Live screen appears.
• This layout uses a local server on the Live computer; it also works while Browser monitoring is off and is not exposed to the network. Screens with web access turned off also open on an additional monitor.
• The TV (second screen) display does not open on additional monitors; if no free monitor is left, the TV display does not open at all (Studio warns you).
• The time machine records the display of each additional monitor separately under the names Screen 2, Screen 3 … (Time machine).

F7 reports the following cases: if the screen selected for a monitor has been deleted or is a draft (the start screen then opens on that monitor) and if the second-screen TV display is on.

Per-screen tag

Normally an internal tag has a single value and every display sees it. Some tags, however, hold the display's own state, such as Aktif_Sayfa, which highlights the button of the open screen in the top bar. When the screen changes on monitor 2, this value must not also change the bar of monitor 1.

For such a tag, select the HMI tags check box in the Per screen table. The check box is available only for internal tags (it is locked for tags with a connection).

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1. Per screen — internal tags only; each display keeps its own value.

• Each display (the Live window, each additional monitor, each browser, each TV) keeps its own value of this tag. A value written by one display changes only on that display; it is not sent to Live and does not spread to the other displays.
• This tag is also written in the read-only viewer and on the TV: the write in the screen open event runs there too, so the bar highlight shows the correct screen on every display.
• Alarms, logs, tasks and scripts on the Live computer use the value of the Live window. Do not put production data in a per-screen tag.

Second monitor TV display

If a second monitor or a TV is connected to the Live computer, the selected screens of the project rotate there in turn. The display is read-only: there is no menu and nothing can be clicked.

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1. Second monitor — turn on the display, select the monitor and the warning banner.
2. Duration (s) — the time the screen stays on the display.
3. Transition — the transition effect between screens.

1. Turn on the display

   In the Remote monitoring section, open the TV display (second monitor) tab and set TV display on the second monitor to On.

2. Select the display

   Display: Automatic (first monitor without the panel) or Monitor 1 … Monitor 4. The monitor number is the number in the Windows Display settings. The display on which Live runs (the panel) and the monitors covered by the multi-screen cannot be selected; if no suitable display is available, the window does not open.

3. Enter the display order

   Add screen rows to the table (at most 40). In each row:

You reorder the table with ↑ ↓; the strip at the bottom shows the number of screens and the total duration of one round. When the sequence ends, it starts again from the beginning. If there is a single row, the screen stays fixed on the display and no transition takes place. If the list is empty, the description display list is empty appears on the display.

Alarm banner

If on, the active alarms are shown in turn in the band at the bottom of the display: if there are alarms awaiting acknowledgment, they appear in a red band; otherwise the active alarms; if there are no alarms, a thin quiet band. An alarm stays in the band for 6 – 8 seconds.

Top bar

Project name, displayed screen, 3 / 9 · Next: …, sequence dots, connection status, clock, and a progress line showing the transition time.

• The fixed top and bottom area screens are not shown on the TV; the entire display is left to the next screen in the sequence. The language follows the language on the Live computer.
• The TV window is re-evaluated when the connected screens change (when a monitor is plugged in or removed). The state of the window is shown in Live in the system menu › Remote monitoring… window, in the Second screen (TV) section: Showing — screen N, Second screen not found (requested: …), Window closed or Disabled in project; the resolution of the connected screens is also listed (the screen occupied by Live is marked as panel).
• Every 6 hours, at a screen change, the display is fully refreshed; it is also rebuilt when the project changes.

Network TVs

An address is entered in the browser of the smart TV (or another computer); the TV runs through its own display sequence. This feature requires Browser monitoring to be switched on: the TV addresses connect to the browser server of Live.

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1. TV No. — determines the address (/tv1 … /tv8).
2. Address — typed into the TV browser.

• A maximum of 8 TVs can be defined; the number (TV 1 … TV 8) is the first free number and cannot be changed manually. The address has the form http://<Live PC'sinin IP adresi>:<port>/tv1 … /tv8 (the port is 8080 by default).
• Each TV has its own Name (at most 30 characters), its own Alarm banner option and, below, its own Display sequence table. A new TV starts with a copy of the display sequence of the second display.
• TVs watch without password (on by default): anyone on a permitted network who knows the address can open the TV display. If it is off, a log-on with a browser user is required on the TV. For access networks and users, see Remote monitoring.
• The actual addresses are listed in Live in the System menu › Remote monitoring… window, under the heading TV addresses, with Copy buttons.

Limitations and points to note

• The TV display is read-only; there is no control, alarm acknowledgment or setting. Scripts do not run on the TV.
• Multi-screen is applied only in full screen. TV is not opened on the covered monitors.
• If no second display is found (if there is only the single display where Live is), the TV window does not open; this is deliberate, so as not to cover the panel.
• The display sequence has at most 40 rows; the duration is 5 – 3600 seconds.
• Multi-screen and TV display must be tested in the field on a real multi-monitor computer.
• Switching to another screen on an additional monitor changes only that monitor; when Live starts, each monitor again begins with the screen selected in Studio.