TMS320F28388D：EtherCAT cannot enter OP mode, it can enter safe-OP mode

I use the routine C2000Ware_2_00_00_03\libraries\communications\Ethercat\f2838x\examples\f2838x_cpu1_echoback_solution.

I want to select DC synchron to run in operation mode.

However, in reality, I can only run in safe-OP mode.

I haven't changed the program of the example.If I want to run under DC synchron, do I need to change.