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Device name
QCPU
*3
Accumulator
Nesting
15 points
Pointer
300 points
Interrupt pointers
128 points
*6
SFC blocks
126
SFC transition devices
Decimal constants
K - 2147483648 to K2147483647
Hexadecimal constants
H0 to HFFFFFFFF
*6
E 1.17550-38 to E 3.40282+38
Real number constants
Character string
"QnACPU", "ABCD"
*1 The number of device points can be changed at the parameters.
*2 CPU uses V as an edge relay.
*3 Instructions that used accumulators with the AnNCPU, AnACPU, and AnUCPU have different formats with the QCPU.
*4 Can only be used by the $MOV instruction with the Q00JCPU, Q00CPU, and Q01CPU.
*5 The Q00JCPU does not have file registers.
*6 Applicable to products with the first five digits of the serial number 04122 or higher (Q00JCPU, Q00CPU, and QCPU).
*7 Each 5 points of FX0 to FX4 and FY0 to FY4 can be used on the programs.
*8 The number of points that can be used on the programs
*9 The number of accessible points to actual I/O modules
*10 The Q00UJCPU does not have file registers.
*11 Only when L06CPU, L06CPU-P, L26CPU, L26CPU-P, L26CPU-BT and L26CPU-PBT whose first digits of serial number are "16042" or
later are used, the pointer for auto assignment device up to 32768 points can be used. (In order to use them, the PLC Parameter should
be set. For the PLC Parameter, refer to the MELSEC-L CPU Module User's Manual (Function Explanation, Program Fundamentals).)
I/O control mode
I/O control mode
Refresh
mode
Direct I/O method
Direct mode
Symbol in table : Usable, : Unusable
*1 The DOUT, DSET, and SRST instructions are direct output dedicated instructions. There are no dedicated instructions for direct input.
*2 Switching between the refresh mode and direct mode is conducted with an AnNCPU DIP switch.
Data that can be used by instructions
Setting data
Bit data
Bit device
Word device
Word data
Bit device
Word device
Double word data
Bit device
Word device
Real number data
Character string data
Symbol in table : Usable, : Unusable
*1 Applicable to products with the first five digits of the serial number 04122 or higher (Q00JCPU, Q00CPU, and Q01CPU).
*2 Usable with only the $MOV instruction for the Q00JCPU, Q00CPU, and Q01CPU.
512 points
4096 points
128 points
256 points
320 points
512 points
*4
QCPU
Partial refresh instructions
*1
Dedicated instruction
Direct access input
Direct access output
QCPU
(Bit specification
required)
(Digit specification
required)
(Digit specification
required)
*1
*2
LCPU
AnUCPU
2 points
15 points
8 points
4096
256 points
*11
points
256 points
32 points
320 points
512 points
LCPU
AnUCPU
LCPU
AnUCPU
(Bit specification
required)
(Digit specification
(Digit
required)
specification
required)
(Digit specification
(Digit
required)
specification
required)
Appendix 2 CPU Performance Comparison
AnACPU
AnNCPU
AnACPU
AnNCPU
*2
*2
AnACPU
AnNCPU
(Digit
(Digit
specification
specification
required)
required)
(Digit
(Digit
specification
specification
required)
required)
APPENDICES
1065
A
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