Mitsubishi NZ2GFCF-D62PD2, User Manual

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147
CHAPTER 8 FUNCTIONS
8
8.12 L
atch C
ounter/
preset/replace Fun
ction
● The count value cannot be replaced with the preset value while CH  External preset/replace (Z Phase) request
detection (RX23, RX3B) is on.
Replace the value after CH
 External preset/replace (Z Phase) request detection (RX23, RX3B) turns off by turning on
CH  External preset/replace (Z Phase) request detection reset command (RY23, RY3B).
●
Have a
Δ
T
1
or longer interval after changing CH  Preset value setting (RWw14 to RWw15, RWw2C to RWw2D) until the
value is replaced since there are maximum of
Δ
T
1
delay until change in the preset value is reflected.
*1
●
When the latch counter function is performed by CH  Function input terminal (FUNC1, FUNC2), the operation response
time follows CH  Function input response time setting (address: 0129
H
.b2 to b3, 0149
H
.b2 to b3). Since CH  Latch
count value (RWr12 to RWr13, RWr2A to RWr2B) is updated synchronizing with the internal control cycle, a maximum of
delay time shown below occurs until the acquired value is stored.
•
Δ
T
1
*1
+ Setting time of CH  Function input response time setting (address: 0129
H
.b2 to b3, 0149
H
.b2 to b3)
*1 For Δ T
1
, refer to Page 283, Appendix 4.
No. Description
1) Counting starts by turning on CH  Count enable command (RY24, RY3C).
2)
The value in CH  Present value (RWr10 to RWr11, RWr28 to RWr29) is stored in CH  Latch count value (RWr12 to RWr13,
RWr2A to RWr2B), and the value in CH  Preset value setting (RWw14 to RWw15, RWw2C to RWw2D) is stored in CH  Present
value (RWr10 to RWr11, RWr28 to RWr29) at the rising edge of CH  Function input terminal (FUNC1, FUNC2). After CH  Latch
count value (RWr12 to RWr13, RWr2A to RWr2B) is updated, CH  Update flag (Latch count value) (RX29, RX41) turns on.
3) Set any values to CH  Preset value setting (RWw14 to RWw15, RWw2C to RWw2D).
4) Counting stops by turning off CH  Count enable command (RY24, RY3C).
5)
When CH  Update flag reset command (Latch count value) (RY28, RY40) is turned off then on, the high-speed counter module
turns off CH  Update flag (Latch count value) (RX29, RX41) and turns on CH  Update flag reset completed (Latch count value)
(RX28, RX40).
After that, CH
 Update flag reset completed (Latch count value) (RX28, RX40) turns off when CH  Update flag reset command
(Latch count value) (RY28, RY40) is turned off.
6) Counting resumes by turning on CH  Count enable command (RY24, RY3C).