6.
PROGRAMMING
/MELSEC-A
c
1.
Always write the
two
(upper and lower) words to the present value change
addresses simultaneously. Writing one word only will not change the present
value and will cause an error
to
be
flagged.
2.
Zeroing will always
set
the present
value
back
to
the zero address, however
the zeroing data and the parameters should
b
written to the buffer memory
before zeroing.
6-40
I6
IN41
68101-P.