Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 59

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 50
Unit Setting, Page 51 Position Data Magnification) The address range is -2147483647 to +2147483647.
Special Device
Name F CPU module
X
*1
Axis 1 Axis 2
Current 5 SD5502 SD5542
address SD5503 SD5543
(pulse unit)
3 SD8340 SD8350
SD8341 SD8351
R: Read only, R/W: Read/Write
*1 5: FX5 dedicated device, 3: FX3 compatible device
When the value in the devices above changes, the current address (user unit) also changes automatically.
• Writing can be performed to the current address (pulse unit) of FX5 dedicated device 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.
• In a program with interruption priority 1, the HCMOV/DHCMOV instruction specified with this device for
high-speed pulse input/output module cannot be executed. (MELSEC iQ-F FX5 User's Manual
(Application))
Precautions
The current address (pulse unit) functions with the range of -2147483647 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.
High-speed pulse input/output module
First module
Axis 3 Axis 4 Axis 5 Axis 6
SD5582 SD5622 SD5662 SD5702
SD5583 SD5623 SD5663 SD5703
 
SD8360 SD8370
SD8361 SD8371
Second module Third module
Axis 7 Axis 8 Axis 9 Axis 10 Axis 11 Axis 12
SD5742 SD5782 SD5822 SD5862
SD5743 SD5783 SD5823 SD5863
   
4 POSITIONING PARAMETER
R/W
Fourth module
SD5902 SD5942 R/W
SD5903 SD5943
 
R
4.2 Details of Parameters
4
57