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1.3  MELSEC-QnUD Module Configuration 

(1) Universal 

model 

The Universal model QCPU is used for a training in this textbook, therefore, 

"QCPU" indicates "Universal model QCPU" unless otherwise noted. 

(2)  Basic configuration of a programmable controller system 

The following figure shows an actual programmable controller configuration. 

 

Battery for QCPU (Q7BAT)

Q7BAT-SET

Battery holder

Battery for QCPU (Q6BAT)

Battery for QCPU (Q8BAT)

Q8BAT-SET

Q8BAT connection cable

Power supply module/I/O module/Intelligent function module/Special function module

Extension cable

Q3    DB multiple CPU high speed main base unit

Universal model QCPU

Memory card

Q5    B extension base unit
Q6    B extension base unit

 

 

Figure 1.3 MELSEC-QnUD module configuration (when Q3 DB is used)