Mitsubishi Electric MELSEC-Q Series - Extension Cable; System Configuration

5 REPLACEMENT OF BASE UNIT AND EXTENSION CABLE
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5.4.3 Extension cable
5.4.4 System configuration
This section explains the system configuration and precautions for use of the QA(1S)6B and
QA1S51B type extension base unit.
(1) Connection order of extension base units
When using the Q6B, QA1S6B, QA1S51B, and QA6B together, connect them in the order of the
Q6B, QA1S6B, QA1S51B, and QA6B from the nearest position of the main base unit.
The QA1S51B is not extendable. When the QA1S51B is used, the QA6B cannot be used.
(2) Connection order of extension base units upon setting the extension stage number
To use extension base units, it is necessary to set extension stage numbers (1 to 7) with the stage
number setting connector.
Set the extension stage number 1 to the connected extension base unit closest to the main base unit,
and the following extension stage number (up to 7) to the following extension base units in the
connected order.
Item
Model
QC05B QC06B QC12B QC30B QC50B QC100B
Cable length 0.45m 0.6m 1.2m 3.0m 5.0m 10.0m
Weight 0.15kg 0.16kg 0.22kg 0.40kg 0.60kg 1.11kg
16 17 18 19 20 21 22 23
01234567
8 9 10 11 12 13 14 15
1
2
3
24 25 26 27 28
QA1S68B
QA68B
29 30 31
Q38B
Q68B
QCPU
Extension level setting
Extension level
setting connector
Main base unit
Extension base unit for
Q series-compatible modules.
(Connect the Q5B/Q6B with the main
base unit or the last Q5B/Q6B.)
Extension base unit for
AnS series-compatible modules.
(Connect the QA1S51B, QA1S6B with
the main base unit and the last Q5B/
Q6B, or QA1S6B.)
Extension base unit for
A series-compatible modules.
(Connect the QA6B with the main
base unit and the last Q5B/Q6B/
QA1S6B, or QA6B.)
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