Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual page 596

General-purpose input assignment of the 1-phase 2-input counter
U: UP pulse input, D: DOWN pulse input, P: Preset input (reset), E: Enable input (start)
X0 X1
CH1 U(A) D(B)
CH2
CH3
CH4
CH5
CH6
CH7
CH8
If one of X1, X3, X5, X7, X11, X13, X15, X17 is specified as a device, an error occurs.
General-purpose input assignment of the 2-phase 2-input counter
A: A phase pulse input, B: B phase pulse input, P: Preset input (reset), E: Enable input (start)
X0 X1
CH1 A B
CH2
CH3
CH4
CH5
CH6
CH7
CH8
If one of X1, X3, X5, X7, X11, X13, X15, X17 is specified as a device, an error occurs.
• The table below shows the related devices.
Function
Monitor in operation
High-speed counter pulse
density
Measurement unit time
• The table below shows the related device update timing.
Function
Monitor in operation
High-speed counter pulse density
Measurement unit time
8 APPLICATION INSTRUCTION
594
8.17 Pulse Related Instruction
X2 X3 X4 X5
U(A) D(B)
U(A) D(B)
X2 X3 X4 X5
A B
A B
CH1 CH2 CH3
SM4500 SM4501 SM4502
SD4507, SD4537, SD4567,
SD4506 SD4536 SD4566
SD4517, SD4547, SD4577,
SD4516 SD4546 SD4576
R/W
R
R
R/W
X6 X7 X10 X11
P E
U(A)
D(B)
U(A) D(B)
X6 X7 X10 X11
P E
A
B
A B
CH4 CH5
SM4503 SM4504
SD4597, SD4627,
SD4596 SD4626
SD4607, SD4637,
SD4606 SD4636
Update timing
• When the DSPD instruction is executed
• When the DHIOEN instruction is executed
• Each time the measurement unit time elapses
• When the DSPD instruction is executed
X12 X13 X14 X15
P E
P E
P E
U(A) D(B) P E
U(A) D(B)
X12 X13 X14 X15
P E
P E
P E
A B P E
A B
CH6 CH7
SM4505 SM4506
SD4657, SD4687,
SD4656 SD4686
SD4667, SD4697,
SD4666 SD4696
Clear
• Power-on
• Reset
• Power-on
• Reset
• Power-on
• Reset
X16 X17
P E
P E
U(A) D(B)
X16 X17
P E
P E
A B
CH8
SM4507
SD4717,
SD4716
SD4727,
SD4726