FX
3U
Series Programmable Controllers
User’s Manual - Hardware Edition
227
11 Use of High-speed Counters (C235 to C255)
11.11 Related Devices and Function Switching Procedures
11
Hi
gh
-Speed
Counters
12
O
utput W
iri
ng
13
W
iri
ng for
V
ari
ous
Us
es
14
Te
st R
un,
Mai
nten
ance,
T
roubl
es
hooti
ng
15
IInput/Output
Pow
ered
Exte
nsi
on U
nit
s
16
Input/O
utput
Extens
ion
Bl
ock
s
17
Extension
Power Suppl
y
Un
it
18
Other Extens
ion
Uni
ts an
d
Opti
ons
19
D
isplay M
od
ule
20
Te
rminal
Bl
oc
k
11.11.4 [Function switching] procedures for using 2-phase 2-count input counters C251 to
C255 in 4 edge count mode
The 2-phase 2-count input counters C251 to C255 are in the 1 edge count mode. The counters can be
operated in the 4 edge count mode by programming as shown below.
Counter No.
To use 4 edge count 2-phase 2-input counter
Details of change
C251
1 edge count (before change)
4 edge count (after change)
C252
C253
C253(OP)
C254
C255
M8000
M8198
C251
K
Phase A
Phase B
+1
+1
Up-counting
Phase A
Phase B
-1
-1
Down-counting
Phase A
Phase B
+1
Up-counting
+1 +1 +1 +1
+1 +1 +1 +1
Phase A
Phase B
-1
Down-counting
-1 -1 -1 -1
-1 -1 -1 -1
M8000
M8198
C252
K
M8000
M8199
C253
K
M8000
M8199
C253
M8392
M8388
K
M8000
M8198
C254
K
M8000
M8199
C255
K
Содержание FX2-16E series
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Страница 508: ...FX3U Series Programmable Controllers User s Manual Hardware Edition 500 C Character code C 1 ASCII Code Table MEMO ...
Страница 510: ...502 FX3U Series Programmable Controllers User s Manual Hardware Edition D Discontinued models MEMO ...
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