Cause
No symbolic address is stored at a PLC connection point. In addition, the connection point does not have any connected target that could automatically form a symbolic address with its DT.
Note:
Only those PLC connection points are checked that are inputs and outputs.
Solution
Possibility 1
Open the Properties <...> dialog for the corresponding PLC connection point. Enter a symbolic address in the PLC connection point tab in the Symbolic address field.
Possibility 2
- Select the following commands: File > Settings > Projects > "Project name" > Devices > PLC.
- In the Settings: PLC dialog, select the [...] button next to the PLC-specific settings field.
- In the subsequent dialog bring the Format of symbolic address tab to the front and activate the check box Generate symbolic addresses automatically using.
- Confirm your entries.
- Connect the PLC connection point with a sensor or actuator that has a device tag.
EPLAN now automatically determines the connected DT by means of the target tracking and generates a symbolic address from it. - If required, start a new check run.
If required, start a new check run.