(b) Base adapter
An adapter is used to mount a Q Series base unit using installation holes of the existing A (Large Type) Series
large type base unit.
(c) Conversion adapter fixing mount
A mount to fix the conversion adapters.
Conversion adapter fixing mount model
• Tips for using the upgrade tool manufactured by Mitsubishi Electric Engineering Co., Ltd.
(a) The programmable controller side modules are Q Series modules.
The specifications and functions may be different from those of the A (Large Type) Series modules.
Refer to the specification comparison in the corresponding module's transition handbook to confirm
compliance with the specifications and functions of the external device.
(b) Q Series main/extension base unit can be used with Q Series large type base unit. Select a base unit
according to the module configuration after replacement.
(Example of base unit combination)
• Main base unit: Q312B (Q Series standard type)
• Extension base unit: Q68BL (Q Series large type base unit)
Note that only the following CPU types can be used with Q Series large type base unit.
High Performance Model QCPU
Universal Model QCPU (except for Q00JCPU)
MELSECNET/H remote I/O station
(There are no restrictions on the CPU type if only the upgrade tool manufactured by Mitsubishi
Electric Engineering Co., Ltd. is used.)
• The 1-slot type conversion adapter may be difficult to mount depending on the existing wire size. In such
cases, consider using a Q Series large base unit.
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Base adapter model
12-slot conversion adapter fixing mount
8-slot conversion adapter fixing mount
5-slot conversion adapter fixing mount
3-slot conversion adapter fixing mount
(Upgrade tool manufactured by Mitsubishi Electric Engineering Co., Ltd. is used.)
2.1 Replace A/QnA (Large Type) Series with Q Series
Mountable conversion adapter fixing mount
A conversion adapter fixing mount is
required to mount conversion adapters.