Mitsubishi Electric melsec-k Programming Manual page 15

Lower
1 digit
, I '\
Inevitable definition with
a 1
point correspondence.
,
Fig. 3-1. Assignment in the unit
Under reference to Fig. 3-3., the input/output list is defined sequentially with
a 1
point cor-
respondence and complete the input/output list. (Execute entry with use of sheets 2.)
Caution points for adress assignment:
@Occupation of 16 points:16 points for the external failure monitor, timer, blank (only in the
case of intermediate blanks), and latch unit must be selected.
Note: Note that the entire arrangement is shifted if a unit which occupies 32 points or 64
points is inserted into the blank afterwards.
Select 32 points/64 points for multipoint storage input/output units, latch units
3
Refer to the lower left of the unit arrangement table sheets.
@Occupation of 32 points or 64 points
(3)Cations for input assignment
There is no special principle, but when assignment is executed under consideration of the
following points, programming and checking will be facilitated and the arrangement of the wir-
ing diagram will become easier.
@Collect, for example, push button switches together, then limit switches, etc.
so
that the in-
@Assign sequentially according to the divice numbers within each type.
@When there are remaining points, assign on device or machine per input unit.
@For devices which can be connected externally, assign after connection.
@Assign high noise inputs as far as possible from the CPU, i.e. with later numbers.
In the same way for input assignment, there is no special principle, but attention should be paid
to the following points.
@Collect output devices of the same type together.
put are grouped in similar kind.
(4)Cautions for output assignment
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