Mitsubishi Electric MELSEC iQ-F Series User Manual page 18

Current address
Store the current address operated by the positioning instruction. The current address stores an absolute address and is
increased or decreased depending on the rotation direction.
■Current address (user unit)
The unit is the machine/multiple system unit, and the value indicated includes positioning data magnification. (Page 41
Unit Setting, Page 43 Position Data Magnification) The address range is -2147483648 to +2147483647.
Special Device
Name
Current address (user unit)
R/W: Read/Write
When the value in the devices above is changed, the current address (pulse unit) is also changed.
• Writing can be performed to the current address (user unit) only by the HCMOV/DHCMOV instruction.
During positioning operation, the value written to the current address is applied when the instruction is
completed.
• Reading can be performed to the current value by the HCMOV/DHCMOV instruction.
Precautions
The current address (user unit) functions within the range of -2147483648 to +2147483647. However, an overflow or
underflow occurs before the current address (pulse unit) is reached if the axis parameter is set in such a way that the number
of pulses per rotation is less than the number of transfer distance units per rotation. If that happens, overflow/underflow to the
upper or lower limit value is stored in the device.
■Current address (pulse unit)
The unit is the motor system unit (pulse unit), and the value indicated includes positioning data magnification. (Page 41
Unit Setting, Page 43 Position Data Magnification) The address range is -2147483648 to +2147483647.
Special Device
Name
Current address (pulse unit)
R/W: Read/Write
When the value in the devices above changes, the current address (user unit) also changes automatically. When reading ABS
data from the servo amplifier using the DABS instruction, read the device above.
• Writing can be performed to the current address (pulse unit) only by the HCMOV/DHCMOV instruction.
During positioning operation, the value written to the current address is applied when the instruction is
completed.
• Reading can be performed to the current value by the HCMOV/DHCMOV instruction.
Precautions
The current address (pulse unit) functions with the range of -2147483648 to +2147483647 pulses. However, if the upper limit
is exceeded, current address overflows to the lower limit. If below the lower limit, current address underflows to the upper
limit.
FX5 dedicated
Axis 1 Axis 2
SD5500, SD5501 SD5540, SD5541
FX5 dedicated
Axis 1 Axis 2 Axis 3
SD5502 SD5542 SD5582
SD5503 SD5543 SD5583
Axis 3
SD5580, SD5581
For compatibility with FX3
Axis 4 Axis 1 Axis 2
SD5622 SD8340 SD8350
SD5623 SD8341 SD8351
R/W
Axis 4
SD5620, SD5621 R/W
R/W
Axis 3 Axis 4
SD8360 SD8370 R/W
SD8361 SD8371
4 POSITIONING PARAMETER
4.2 Details of Parameters
4
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