There is some mismatch with the numbering.
The pattern is lcec.<master idx>.<slave idx>.halPinName
master idx is always 0 for you. Slave idx is 0-3 in ethercat-conf.xml
but 3-6 in the hal file. They must agree.
Go through the hal file and compare with ethercat-conf.xml so you
refer to what you intend to.
Oh, wait! There is the name="D1" field used. Then the hal pin is called lcec.0.D1.halPinName.
With that info, rename the lcec variables in the hal file. D1, D2, D3 etc.
Many of us use a descriptive name like X instead of D1 and so on.
