Cause : Obj cannot be mapped comes when the CANopen object is not provided for the Process Data Object (PDO) Mapping.

Use a CANopen object intended for the PDO mapping or enter 0.

The following objects can be mapped in the Receive Process Data Object (RPDO) or Transmit Process Data Object (TPDO):
- RPDO: 6040 hex, 6060 hex, 60FF hex, 6071 hex; 5800 hex - 580F hex; 5820 hex - 5827 hex
- TPDO: 6041 hex, 6061 hex, 6063 hex, 6069 hex, 606B hex, 606C hex, 6074 hex; 5810 hex - 581F hex; 5830 hex
- 5837 hex