First Connection

What you need

• Your PLC’s IP address (e.g. 192.168.0.1)
• A WebServer user account with at least read access (create one in TIA Portal — see WebServer Setup)
• Network connectivity from your PC to the PLC (ping it first to confirm)

Connecting

1. Open Settings

   Click the gear icon in the left sidebar or navigate to Settings → Connections.

2. Enter the PLC IP

   Type the PLC’s IP address in the PLC IP Address field. Do not include http:// or https:// — the app handles the protocol automatically.

3. Enter your credentials

   Type your WebServer username and password. The password is never saved to disk — you will need to enter it each time you start the app.

4. Click Connect

   The status indicator next to the Connect button will turn green once the session is established. If it stays red, check the Troubleshooting page.

What happens after connecting

Once connected, the Dashboard begins auto-refreshing every 5 seconds:

• CPU Status — operating mode, fault state, hardware details
• Diagnostic Buffer — the last ~50 diagnostic events from the PLC

A 60-second heartbeat keeps your session alive. If the PLC is unreachable for more than a minute, the session expires and you will need to reconnect.

Disconnecting

Click Disconnect in Settings → Connections, or simply close the app. The PLC session ends automatically.

Caution

The PLC password is held in memory only for the duration of the session. There is no “remember password” feature by design — entering your password each session is intentional security behavior.