WiFi File Browser Help

Overview

The WiFi File Browser allows you to view the contents of an AnodeMeter's SD card over WiFi. The meter polls the gateway service at regular intervals (every 2 seconds on SC20, longer cycle on G120); the gateway relays file-system snapshots and commands between the browser and the meter. File transfers use 512-byte chunked reads/writes with per-chunk CRC-32 verification.

To use WiFi File Browser the meter must be in WiFi Files mode (selected from the LCD menu) and connected to the same site gateway.

Starting a Session

1. On the meter LCD, navigate to WiFi Files and press Enter. The meter displays "Ready" when it has connected to the gateway.
2. In the portal, open WiFi Files from the left navigation.
3. The page shows Connecting to gateway... then Fetching sessions.... When sessions load you will see a gateway status line followed by one or more meter entries with top-level folders.
4. Click the arrow next to a meter to expand its file tree.

If the gateway restarts while a meter session is active the meter automatically detects the restart and re-registers its session within approximately 30 seconds. Sessions idle for more than 2 minutes are removed from the UI.

Browsing Files

• Click the arrow next to a folder to expand its contents.
• Only files and folders within the SD-card root are visible: \SD\Log\, \SD\Results\, \SD\Config\, \SD\Diagnostics\, and \SD\Updates\.
• File sizes, dates, and attributes (Read-Only, Archive, Deleted, etc.) are shown where available.
• Corrupt directory entries (damaged filenames from SD-card wear) are skipped automatically.

Downloading Files

1. Click a file name to open the download dialog.
2. The download uses 512-byte chunks with CRC-32 verification on each chunk. Larger files (results, logs) may take several minutes over WiFi.
3. The download progress bar shows bytes received vs. total file size.
4. Click Cancel to abort a download in progress.

Downloads are served through the browser, not saved on the server. For bulk log retrieval consider removing the SD card and copying files directly.

Uploading Files

1. Navigate to the target folder in the file tree.
2. Click the Upload button in the toolbar (or use drag-and-drop).
3. Select a file from your computer. The file is uploaded in 512-byte chunks with CRC-32 verification.
4. If an upload is interrupted (e.g. WiFi dropout), the meter retains the partial .upload file and resumes from where it left off on the next attempt.
5. When the upload completes the meter writes the final file and removes the .upload temporary file.

Common uploads include updated SmelterConfiguration.xml and FactoryDefaults.csv files to the \SD\Config\ folder.

Troubleshooting

"No meters have announced wifi mode"

The meter is not in WiFi Files mode, or the gateway cannot reach it. Check the meter LCD — it must show "Ready". If it shows "Connect?", press Enter. If the gateway has been restarted wait ~30 seconds for the meter to re-register.

"A task was canceled"

Multiple meters with large file snapshots can exceed the SignalR message size. The portal now fetches file entries on demand per meter; if this error still occurs check the gateway logs for connection errors.

"Connection closed with an error"

The gateway may have restarted. Refresh the page — the meter will re-register automatically.

"Gateway settings: TCP port N, web port N"

These are the ports the gateway is actually listening on. If they don't match the expected defaults (1957 TCP, 1958 web) check the service configuration.