# The device page > What the device page shows about one machine: its status, live values and trends, value history, delivery to targets, diagnostics and logs. Source: https://proxus.io/docs/connect/devices/device-page Every device has a page that shows whether it is connected and what it is reading. Open it from **Connect > Devices** by selecting the device's row, or from **Open the device** at the end of the setup wizard. The page has three parts, from top to bottom: a summary, a row of tabs, and a **Configuration** section that is closed until you open it. ## Summary *Screenshot: The top of a device page with the Connected status, the five figures, alarms and delivery, and the toolbar* 1. **Status**, next to the device's profile, gateway and type. Above the name is the device's place, from enterprise down to equipment module. Point at the status to see the gateway's full status text. 2. Five figures: - **Last value**: when the gateway last received a value from the device. - **Tags**: how many tags the device has, and whether all of them have good quality. - **Reads**: how many reads succeeded, and how many failed. - **Response**: the device's average response time. - **Alarms**: how many alarms are open for the device. 3. **Alarms** lists up to five open or acknowledged alarms of this device. **Delivery** lists the outbound targets that receive its data, each with its state and the time of its last success and last failure. 4. The toolbar. See [Actions](#actions) below. ### Status | Status | Meaning | | --- | --- | | **Connected** | The gateway reads the device and every tag. | | **Warning** | The device is connected, but some tags cannot be read. | | **Protocol Issue** | The device answers but reports a protocol error, a wrong address or data type, or does not answer in time. | | **Retrying** | The connection was lost and the gateway tries again shortly. | | **Error**, **Critical** | The gateway cannot connect: the address cannot be reached, the connection is refused, or sign-in failed. | | **Gateway Offline** | The gateway that reads the device is not connected to the hub. | | **Offline**, **Sleep Mode** | The device has stopped sending data. | | **Stopped**, **Disabled** | The device is not active, so the gateway does not read it. | | **Info**, **Unknown** | No status has been reported yet. | When a device is not connected, its logs usually say why. For the common causes, see [Troubleshoot devices](https://proxus.io/docs/troubleshoot/devices). ## Tabs ### Live values *Screenshot: The Live values tab with one row per tag: key, value, trend sparkline, quality and update time* 1. The tabs: **Live values**, **History**, **Delivery**, **Diagnostics** and **Hierarchy**. 2. One row per tag, updated as values arrive. Select a row to open its trend. 3. **Quality** is **Good**, **Uncertain** or **Bad**. Rows that are not good are highlighted. The columns are **Key** (the tag name), **Value**, **Trend** (a small chart of the recent values and the change, or **Text** for a text tag), **Quality** and **Updated**. Use the search box to find a tag, and **XLSX**, **XLS** or **CSV** to save the table as a file. ### Trend of one tag Selecting a row opens a panel with the tag's recent values. *Screenshot: The trend panel for the Speed tag with the 1 h range selected, a line chart and the last, average, minimum and maximum values* 1. The time range: **15 min**, **1 h**, **8 h** or **24 h**. 2. The chart. Drag the handles under the chart to look at part of the range. 3. **Last**, **Avg**, **Min** and **Max** for the range. 4. **Open in workspace** opens the same tag in the [Trend Workspace](https://proxus.io/docs/monitor/trend-workspace), where you can compare it with other tags. Under **In this range**, the panel lists stops, alarms and configuration changes that happened in the range. Stops are shown only for a device that has a machine state tag. Close the panel with the close button or the Escape key. ### History The values the device sent most recently, one row per value: **Time**, **Key**, **Type**, **Value** and **Quality**. This is the history of the values, not of changes to the device; for changes, use **Audit Trail**. ### Delivery The outbound targets that receive this device's data. To add or remove targets for many devices at once, use **Targets** in the device list. See [Outbound targets](https://proxus.io/docs/connect/outbound-targets). ### Diagnostics Counters kept by the gateway for this device, as **Key** and **Value**: last communication and last data time, successful and failed operations, average response time, connection errors, the number of values processed, and data quality figures. ### Hierarchy The device's place: **Enterprise**, **Site**, **Area**, **Process cell**, **Equipment module** and **Group**. The place decides where the device appears in the [Unified Namespace](https://proxus.io/docs/concepts/unified-namespace). ## Configuration Open **Configuration** at the bottom of the page to see the device's own fields: name, device type, device profile, gateway, **Active**, attributes and image. Clearing **Active** stops the gateway from reading the device; the change is saved at once. To change the connection or the place, [use the setup wizard](https://proxus.io/docs/connect/devices/configure-a-device) instead: it tests the connection before it saves. ## Actions | Action | What it does | | --- | --- | | **Configure with wizard** | Opens the setup wizard with this device's settings. See [Change a device](https://proxus.io/docs/connect/devices/configure-a-device). | | **Add one like this** | Starts a new device with the same profile, gateway and place. Only the name and the address are asked. | | **Audit Trail** | Who changed what on this device, and when. | | **Clone...** | Copies the device's record. | | **Delete** | Deletes the device. A device that is active cannot be deleted: clear **Active** first. | | **Dependencies** (under **...**) | Shows what uses this device's tags: rules, pipelines, dashboards and others. | | **Query** (under **...**) | Opens a query window for the device's stored values. | | **Logs** (under **...**) | Shows the system log entries for this device. Select an entry to read the whole message. | > **Tip:** When a device shows **Warning**, open **Logs** first. The entry names the tag or the check that failed. ## What's next - [Change a device](https://proxus.io/docs/connect/devices/configure-a-device) - [Troubleshoot devices](https://proxus.io/docs/troubleshoot/devices) - [Trend Workspace](https://proxus.io/docs/monitor/trend-workspace)