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MELSEC-Q
4 HARDWARE SPECIFICATION OF THE CPU MODULE
Performance Specifications (continued)
Model
Item
Q02CPU Q02HCPU Q06HCPU Q12HCPU Q25HCPU
Remark
Internal relay [M]
Default 8192 points (M0 to 8191)
Latch relay [L]
Default 8192 points (L0 to 8191)
Link relay [B]
Default 8192points (B0 to 1FFF)
Timer [T]
Default 2048 points (T0 to 2047) (for low / high speed timer)
Select between low / high speed timer by instructions.
The measurement unit of the low / high speed timer is set with
parameters.
(Low speed timer : 1 to 1000ms, 1ms
/unit
, default 100ms)
(High speed timer : 0.1 to 100ms, 0.1ms
/unit
, default 10ms)
Retentive timer [ST]
Default 0 point(for low / high speed retentive timer)
Switchover between the low / high speed retentive timer is set by
instructions.
The measurement unit of the low /high speed retentive timer is set with
parameters.
(Low speed retentive timer : 1 to 1000ms, 1ms
/unit
, default 100ms)
(High speed retentive timer : 0.1 to 100ms, 0.1ms
/unit
, default 10ms)
Counter [C]
• Normal counter default 1024 points (C0 to 1023)
• Interrupt counter maximum 256 points
(default 0 point, set with parameters)
Data register [D]
Default 12288 points (D0 to 12287)
Link register [W]
Default 8192 points (W0 to 1FFF)
Annunciator [F]
Default 2048 points (F0 to 2047)
Edge relay [V]
Default 2048 points (V0 to 2047)
Number of use points
is set with parameters.
[R]
• When a standard RAM is used:
Q02CPU..........................32768 points (R0 to 32767)
Q02HCPU, Q06HCPU.....The number of points of up to 65536 points
can be used by block conversion in
increments of 32768 points (R0 to 32767)
Q12HCPU, Q25HCPU.....The number of points of up to 131072
points can be used by block conversion in
increments of 32768 points (R0 to 32767)
• When a SRAM card (1Mbyte) is used:
The number of points of up to 517120 points can be used by block
conversion in increments of 32768 points (R0 to 32767).
• When a SRAM card (2Mbyte) is used:
The number of points of up to 1041408 points can be used by block
conversion in increments of 32768 points (R0 to 32767).
• When a Flash card (2Mbyte) is used:
The number of points of up to 1041408 points can be used by block
conversion in increments of 32768 points (R0 to 32767).
• When a Flash card (4Mbyte) is used:
The number of points of up to 1042432 points can be used by block
conversion in increments of 32768 points (R0 to 32767).
Number of device points
File register
[ZR]
• When a standard RAM is used:
Q02CPU..........................32768 points (ZR0 to 32767)
Q02HCPU, Q06HCPU.....65536 points (ZR0 to 65535), No block
conversion necessary.
Q12HCPU, Q25HCPU.....131072 points (ZR0 to 131071), No block
conversion necessary.
• When a SRAM card (1Mbyte) is used:
517120 points (ZR0 to 517119) , No block conversion necessary.
• When a SRAM card (2Mbyte) is used:
1041408 points (ZR0 to 1041407), No block conversion necessary.
• When a Flash card (2Mbyte) is used:
1041408 points (ZR0 to 1041407), No block conversion necessary.
• When a Flash card (4Mbyte) is used:
1042432 points (ZR0 to 1042431), No block conversion necessary.
When a Flash card is
used, read only is
possible.
The ATA card cannot
be used.
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