Mitsubishi Electric MELCEC Q Series - Memory Capacity Setting (for Main Program, File Register, Comment, Etc.)

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4. CPU MODULE
4.2.2 Memory capacity setting (for main program, file register, comment, etc.)
QCPU-A has 144k bytes of user memory (RAM) as standard.
Parameters, T/C set values, main programs, MELSECNET/10 network parameters,
expanded comment, file register, and comment data are stored in the user memory.
(1) Calculation of memory capacity
Determine the data types to be stored and the memory capacity with parameters
before using the user memory.
Calculate the memory capacity according to Table 4.1.
(With Q02CPU-A/Q02HCPU-A)
Table 4.1 Parameter setting and memory capacity
Item Setting Unit Capacity Calculation Formula Max. Available Memory Capacity
Write to
ROM
Remark
Parameter – 3k bytes (fixed) 3k bytes (fixed)
Tot al :
144k
bytes
AvailableMain program
T/C set value – 1k byte (fixed) 1k byte (fixed)
Sequence program 1k step
Number of steps 2k bytes
56k bytes
Tot al :
60k
bytes
Microcomputer
program
1k byte Preset number of bytes 54k bytes
Dedicated
to SFC
MELSECNET/10 parameter – See note 3. 16k bytes
Expanded comment 1k byte
Preset number of bytes (1k byte =
64 points)
63k bytes
Not
available
*1
Extension file register (built-in) 8k points
Number of file register points 2k
bytes
128k bytes
File register 1k point
Number of file register points 2k
bytes
16k bytes
Comment 1k byte
Preset number of bytes (1k byte =
64 points)
64k bytes
*1
Extension file register (memory card) 8k points
Number of file register points 2k
bytes
304k bytes