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Precautions When Using Fx3-compatible High-speed Counters - Mitsubishi Electric FX5 User Manual

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LC device
: High-speed transfer capable (special relay is immediately updated)
: Normal transfer capable (special relay is updated in END processing)
: Transfer not possible (read-only)
LC device
Function
LC35
High-speed counter current value (CH1)
LC36
High-speed counter current value (CH2)
LC37
High-speed counter current value (CH3)
LC38
High-speed counter current value (CH4)
LC39
High-speed counter current value (CH5)
LC40
High-speed counter current value (CH6)
LC41
High-speed counter current value (CH1)
LC42
High-speed counter current value (CH3)
LC43
High-speed counter current value (CH5)
LC44
High-speed counter current value (CH1)/High-speed counter current value (CH7)
LC45
High-speed counter current value (CH3)/High-speed counter current value (CH8)
LC46
High-speed counter current value (CH1)
LC47
High-speed counter current value (CH1)
LC48
High-speed counter current value (CH4)
LC49
High-speed counter current value (CH1)
LC50
High-speed counter current value (CH4)
LC51
High-speed counter current value (CH1)
LC52
High-speed counter current value (CH1)
LC53
High-speed counter current value (CH4)
LC54
High-speed counter current value (CH1)/High-speed counter current value (CH7)
LC55
High-speed counter current value (CH4)

Precautions when using FX3-compatible high-speed counters

Shown below are the precautions for using the FX3 compatible high-speed counter. For any other precautions, see the
precautions for each function.
• When the FX3 compatible function is valid, it is possible to specify the LC device in (s1) of the DHSCS instruction/DHSCR
instruction and (s) of the DHSZ instruction. If an LC device that is not used as high-speed counter is specified, an error
occurs, and the DHSCS instruction, the DHSCR instruction, and the DHSZ instruction do not operate.
• Set up the table with the CH number of the counter if the table number of the high-speed comparison table/the multi-point
output high-speed comparison table needs to be specified.
• To clear the current value of the LC device, use the DHCMOV instruction or the RST instruction to clear it.
• Use the latch setting to use LC35 to LC55 with the high-speed counter of the FX3 compatible function.
• The reset coil of the LC device is cleared when the power is set from OFF to ON.
• For the functions that share inputs with FX3-compatible high-speed counter function, refer to Page 248 Functions that
share inputs and outputs.
24 HIGH-SPEED INPUT/OUTPUT FUNCTION
260
24.2 FX3-compatible high-speed counter function
Compatible with
Compatible with
DHCMOV
DMOV instruction
instruction
(s)
(d)
(s)
(d)

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