Chapter 1 Introduction; Proposal To Replace A0J2Hcpu With Qcpu; Advantages Of Replacement To Qcpu - Mitsubishi Electric MELSEC-A0J2H Series Handbook

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INTRODUCTION
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1.1 Proposal to Replace A0J2HCPU with QCPU

1.1.1 Advantages of replacement to QCPU

(1) Advanced performance of equipment is possible (reduced tact time)
Increased speed of the operation processing and bus realizes several times higher performance than
the A0J2HCPU and significantly improves equipment performance.
(2) Ease of module selection
The building block type allows for flexible system configurations by selecting a module from a wide
range of Q series product lineups.
(3) Ease of programming by various kinds of instructions
PID control instruction, real number operating instruction, there are many convenient instructions
available, i.e. and they allow complex data processing to be performed.
(4) Improved maintainability
(a) The high speed serial port and USB port significantly reduces the read/write time of the program
and, improves factory maintainability.
(b) The flash ROM is adopted as the flash memory of the Universal model QCPU. When the CPU
module is replaced with the Universal model QCPU, the ROM operation (battery-less operation)
can be performed without using an option memory.
INTRODUCTION
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