Mitsubishi QD51, User Manual

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MELSEC-Q
3 SPECIFICATIONS
3.5 QD51 (-R24) Internal Memory
The following memory can be used by the user in the QD51 (-R24).
(1) Memory where programs for execution can be stored
• Program Area · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·Refer to Section 3.5.1
This is memory where BASIC programs which run the QD51 (-R24) are stored.
The program area can execute a maximum of two tasks and it has a maximum
capacity of 64 k bytes.
(2) Memory for communications
Address
Programmable
controller CPU
BASIC Program
Item Content
FROM/TO command
GETMEM/PUTMEM
command
Special Variable
B@/W@
Reference
Section
Communications with
the programmable
controller CPU Buffer memory 0000
H
to 0BFF
H
0000
H
to 17FF
H
Section
3.5.2
Communications
between tasks Common memory 0C00
H
to 1BFF
H
1800
H
to 37FF
H
Section
3.5.3
Expansion register 1C00
H
to 1FFF
H
ED0000 to ED1023 Section
3.5.4
System Area
Expansion relay 2380
H
to 23BF
H
EM0000 to EM1023 Section
3.5.6
System Area
Special register 2400
H
to 247F
H
ED9000 to ED9127 Section
3.5.5
System Area
Special relay 2500
H
to 2507
H
EM9000 to EM9127 Section
3.5.7
Reading/writing
ON/OFF data
System Area