Now, setNodeId does change TPDO and RPDO CobId without testing previous CobId in order to avoid confusion. Standard does not says when 'default value' should be applied. See DS301 - Object 1400h - 15FFh: Receive PDO Communication Parameter page 108.

Makefile
TestMasterSlave
result.txt
TestMasterSlave.exe
TestMasterSalve.vcproj.KONG.edouard.user
Release