Siemens LOGO! 8 — Default Password
Default username and password for the Siemens LOGO! 8: (blank) / LOGO. Learn how to log in and how to change the default credentials.
LOGO! 8 compact PLC/controller web server. Default password is the word LOGO (all caps). Must be explicitly configured; web server access is disabled by default.
| Username | Password | Access | Notes |
|---|---|---|---|
(blank / none) | LOGO | Web UI | Web server must be enabled via LOGO! Soft Comfort first. |
- Source
- vendor support forum
Responsible use
This database lists publicly documented default credentials so administrators can find and change them. Only use these on systems you own or are authorized to test.