Mitsubishi Electric MELSEC-Q/L - Page 42

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2 INSTRUCTION TABLES
2.4 Basic Instructions
*1 The number of steps may differ, depending on the device or CPU module to be used.
*2 The number of steps may differ, depending on the device or CPU module to be used.
*3 The number of steps may differ, depending on the device or CPU module to be used.
*4 The number of basic steps is three for the Universal model QCPU and LCPU.
*5 The number of steps may differ, depending on the device or CPU module to be used.
*6 The subset is effective only with Universal model QCPU and LCPU.
CPU module Device Number of
steps
Remark
High Performance model QCPU
Process CPU
Redundant CPU
• Word device: Internal device (except for file register
ZR)
• Bit device: Devices whose device Nos. are multiples of
16, whose digit designation is K8, and which use no
indexing.
• Constant: No limitations
5 When using a High Performance model
QCPU, Process CPU or Redundant CPU,
the number of steps increases but the
processing speed becomes faster.
Devices other than above 3 The number of steps may increase
depending on the conditions.
Page 118 Conditions for increasing the
number of steps
Basic model QCPU
Universal model QCPU
LCPU
All devices that can be used 3
CPU module Device Number of
steps
Remark
High Performance model QCPU
Process CPU
Redundant CPU
• Word device: Internal device (except for file register
ZR)
• Bit device: Devices whose device Nos. are multiples of
16, whose digit designation is K8, and which use no
indexing.
• Constant: No limitations
6 When using a High Performance model
QCPU, Process CPU or Redundant CPU,
the number of steps increases but the
processing speed becomes faster.
Devices other than above 4 The number of steps may increase
depending on the conditions.
Page 118 Conditions for increasing the
number of steps
Basic model QCPU All devices that can be used 4
Universal model QCPU
LCPU
3
CPU module Device Number of
steps
Remark
QCPU, LCPU • Word device: Internal device (except for file register
ZR)
• Bit device: Devices whose device Nos. are multiples of
16, whose digit designation is K8, and which use no
indexing.
• Constant: No limitations
3 
Devices other than above 4 The number of steps may increase
depending on the conditions.
Page 118 Conditions for increasing the
number of steps
CPU module Device Number of
steps
Remark
High Performance model QCPU
Process CPU
Redundant CPU
• Word device: Internal device (except for file register
ZR)
• Bit device: Devices whose device Nos. are multiples of
16, whose digit designation is K8, and which use no
indexing.
• Constant: No limitations
3 When using a High Performance model
QCPU, Process CPU or Redundant CPU,
the number of steps increases but the
processing speed becomes faster.
Devices other than above 2 The number of steps may increase
depending on the conditions.
Page 118 Conditions for increasing the
number of steps
Basic model QCPU
Universal model QCPU
LCPU
All devices that can be used 2