343
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
13 High Speed Processing – FNC 50 to FNC 59
13.6 FNC 55 – HSZ / High Speed Counter Zone Compare
11
FN
C30-
FN
C39
R
o
ta
tion and
Sh
ift
12
FNC
4
0
-FNC49
D
a
ta
Op
e
ra
tio
n
13
FNC5
0
-FNC5
9
H
igh Speed
Pr
ocessi
ng
14
FM
C6
0
-F
NC6
9
H
and
y
In
st
ru
cti
o
n
15
FNC7
0
-FNC7
9
Ex
te
rn
a
l F
X
I
/O
D
evi
ce
16
FNC8
0
-FNC8
9
Ext
e
rnal
FX
D
evi
ce
17
F
N
C1
00
-F
NC
10
9
Da
ta
Tr
ansf
e
r 2
18
FN
C
110-FN
C
13
9
Fl
oat
ing P
o
in
t
19
FN
C
140-FN
C
149
Da
ta
O
per
at
io
n
2
20
FN
C
15
0-F
N
C
159
P
o
si
tioni
ng
C
ont
ro
l
13.6.3
Frequency control mode (HSZ and PLSY instructions) (M8132)
When the special auxiliary relay M8132 for declaring the frequency control mode is specified as
in the
DHSZ instruction, the special function shown below is provided if DPLSY instruction is combined.
At this time, only a data register D can be specified as
, and a constant K or H can be specified as
. The available range is limited to "1
≤
K, H
≤
128".
A high speed counter C235 to C255 can be specified as
.
This function is different from the zone comparison described above.
PLSY instruction is as shown on the next page, and only the pulse output can be changed by users.
1. Control example
Example of table configuration and data setting
Comparison data
Frequency
Table counter D8131
D 301,D 300
K 20
D 302, D 303
K300
0
↓
D 305,D 304
K600
D 306, D 307
K500
1
↓
D 309,D 308
K700
D 310, D 311
K200
2
↓
D 313,D 312
K800
D 314, D 315
K100
3
↓
D 317,D 316
K 0
D 318, D 319
K 0
4
↓
D
S
1
S
2
S
Number of lines specified
as
Head device (32 bits)
specified as
S
1
S
2
