Cause
The address range of a subdevice of a PLC card was defined in such way that it overlaps with the address range of a PLC card or is located completely outside the address range of the PLC card.
Note:
The address range of a PLC subdevice is determined from the data length and the start address. The data length is always specified in bits. The following applies: The data length of the PLC card affects the entire memory area, while the data lengths of the PLC subdevices always only affect part of the memory area.
The data length of the PLC card in the PLC device: Data length (inputs) property must therefore cover the entire range that is defined by the Start address of PLC card to (PLC subdevice x: Start address (inputs) + PLC subdevice x: Data length (inputs)) properties.
Solution
- Locate the PLC box of the PLC card in the schematic via the popup menu of the Message management dialog.
- Call up the property dialog of the PLC box and bring the first tab to the front.
- In the properties table adjust the values of the fields PLC subdevice x: Start address (...) and PLC subdevice x: Data length (...) in such a way that the address range of the subdevice lies within the address range of the PLC card.
- Confirm your entries.
- If required, start a new check run.