A PLC can have its data read when no password is set, but if a password is configured, the data cannot be read. However, I haven't been able to find where to input the password to establish a connection.
Can you share addresses that you are trying to read?
S7 node doesn't require password to read PLC.
What password are you talking about?
This is my project password setup:
and I can read PLC data without any issues
With this password in place, the connection can be established, but data reading fails and errors occur. The errors stop when I remove the password, and everything works normally then.
Which password? TIA has so many places to enter passwords.
Also please check: https://support.industry.siemens.com/forum/WW/en/posts/connecting-to-hmi-error-code-0x8104/270924
This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.
