Assignment Of I/O Numbers; Relationship Between The Number Of Stages And Slots Of The Expansion Base Unit; Q00Jcpu - Mitsubishi Electric MELSEC-Q Series User Manual

5 ASSIGNMENT OF I/O NUMBERS

5 ASSIGNMENT OF I/O NUMBERS
5.1 Relationship Between the Number of Stages and Slots of the Extension Base Unit

5.1.1 Q00JCPU

5
Setting of extension stage
(Refer to Section 5.2)
1
2
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This section describes the necessary information on the I/O number assignment for the
data exchange between Basic model QCPU and input/output modules or intelligent
function modules.
The Q00JCPU can configure a system with a total of three base units: one main base
unit and two extension base units.
Note that the number of usable slots (modules) is 16 slots including vacant slots.
For example, if you set slot 2 for "vacant, zero points" as shown below, it occupies one
slot.
Hence, the following system uses five slots, slot 0 - slot 4.
0 1 2 3 4
1 slot occupied
Install modules to slots 0 - 15.
Installing any module to slot 16 or later will result in an error (SP. UNIT LAY ERR.).
0 1 2 3 4
5 6 7 8 9 10 11 12
13 14 15
Modules cannot be installed.
(Installing modules will result in error.)
Slot No.
CPU slot
Q68B
When the GOT has been bus-connected,
one slot of extension base 1 is used.
Also one GOT occupies 16 I/O points.
Q65B
When using the GOT, consider the number
of slots and the number of I/O points.
Refer to the GOT Manual for details of bus-
connecting the GOT.
MELSEC-Q
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