The Wincc network is connected, but the driver is not connected.
The communication port setting is wrong. Check the wincc communication port setting. Wincc network is connected, but the driver can't connect. It may be because the communication port is set incorrectly. If the communication port setting of wincc is inconsistent with the actual communication port of the driver, the connection cannot be made. You need to check the communication port setting of wincc to ensure that it is the same as the communication port of the driver.