When changing from bit-type to word-type, if I/O
has been allocated to I0-I11 and Q0-Q5 in the LT-3200 Series, and
also to I0-I15 and Q0-Q15 in the LT-3300 Series, the allocation of
I/O will be canceled. In addition, variables allocated to I0 and Q0
are directly allocated to IW0 and QW0. However, because bit
variables are allocated to word-type I/O, an error will occur
during error checking when saving and transferring.