3.4.2 Memory Organisation
The PLC CPUs uses multiple memories. These memories are identified by their drive number.
In addition to the built-in memory high performance CPUs are equipped with a slot for a mem
-
ory card.
Organisation of storage
쎲 Q00JCPU, Q00CPU und Q01CPU
쎲
= Storage is possible
쑗
= Storage is not possible
3–12 MITSUBISHI ELECTRIC
The CPU Modules The MELSEC System Q
Data
Built-in memory
Program memory
(Drive 0)
RAM
(Drive 3)
ROM
(Drive 4)
Program
쎲쑗쎲
Parameters
쎲쑗쎲
Intelligent function
module parameters
쎲쑗쎲
Device comments
쎲쑗쎲
File register
쑗쎲쑗
Memory card (RAM)
Drive number: 1
Memory card (ROM)
Drive number: 2
Program memory
Drive number: 0
Built-in RAM
Drive number: 3
Standard ROM
Drive number: 4
CPU Module
It is not possible to install a memory card
in a Q00JCPU, Q00CPU or Q01CPU.