COB-ID allocation of TPDO in CM CANopen manager

Mihai Postolache

• 25. April 2024 11:40

Hi,

I try to configure a CANopen Network using an S7-1200 CM CANopen module as CANopen manager (node ID = 127) and an ESA MicroCANopen slave node (node ID = 1.

The slave node uses 2 TPDOs x 4 bytes and 2 RPDOs x 4 bytes.

I have mapped all 4 PDOs in the image process of CANopen manager, so the RPDO1 is correctly assigned COB-ID = 0x181 and RPDO2 has COB-ID = 0x281, COB-ID of TPDO1 is by default 0x201, but COB-ID of TPDO2  is by default 0x200 instead of 0x301, as it should be accordingly to the default allocatio scheme of COB-IDs for TPDOs.

Please let me know why TPDO2 is fixed by default with COB-ID 0x200? What I do wrong in the configuration?

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  Mert Kavaf

  • 29. April 2024 08:19

  Hello Dear Mihai, 

  The PDO mapping on the CM CANopen Manager side is done automatically and there is no default mapping.

  To be able to configure the slave PDOs, you need to click to the slave on the left side. 

  Right now, the Manager (CM CANopen) is selected. 

  

  Best regards,
  Mert

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