
3.I/O LINK B-63983EN/02
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Assignment method
(1) Group number
For I/O Unit-MODEL A, up to two I/O units can be connected
when interface module AIF01A is used as the basic unit and
expansion interface module AIF01B is also used. This is called
the base expansion function. This set of up to two I/O units
comprises one group (see Fig. 3.2.1 (a)). When required I/O
modules cannot be contained only in one group or when multiple
I/O units are to be distributed at distant locations on the machine
side, the second AIF01A can be connected to the first AIF01A
using a cable to add a group. (See Fig. 3.2.1 (b).)
(2) Base number
One group consists of up to two I/O base units. The base number
of the I/O unit on which interface module AIF01A is mounted is
0; the base number of the other I/O unit is 1.
In other words, when the base expansion function is used, the
base number of the basic unit is always 0 and that of the
expansion unit is always 1. When the base expansion function is
not used, the base number is always 0.
(3) Slot number
On one I/O base unit, up to five (ABU05A) or ten (ABU10A)
I/O modules can be mounted depending on the type of I/O base
unit. The location of each module on the I/O base unit is
represented by a slot number. For each base unit, the location of
the I/O interface module is 0 and slot numbers 1 to 10 are
assigned from left to right. Each module can be mounted into
any desired slot. I/O modules may not be mounted closely from
left to right. An intermediate slot may not be used.
(4) Module name
For module names, see Tables 3.2 (a) to (c) in Section 3.2 above.
Actual module names begin with A. When setting a module
name, remove this A. Some actual module names may end with
a numeric character. In this case, when setting a module name,
also remove the numeric character.
(Example 1) To set module AID16D, enter ID16D.
(Example 2) To set module AID32A1, enter ID32A.