Mitsubishi Electric FX3G SERIES Programming Manual page 362

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
Comparison points
Make sure that the comparison value 1 and the comparison value 2 have the following relationship:
[ S +1, S
1 1
Comparison point
Comparison value 1
Comparison value 2
Operation
When the current value of the high-speed counter C251 changes (counts) as shown below, the comparison result is
output to one of the outputs Y000, Y001 or Y002.
M8000
RUN monitor
Comparison pattern
>
S S
1
S ≤ S ≤
1
S <
Related instructions
The following instructions can be combined with high-speed counters:
Instruction
DHSCS
DHSCR
DHSZ
DHCMOV
DHSCT
360
] ≤ [
S +1, S ]
2 2
Contents (32 bits)
S +1, S
1 1
S S
+1,
2 2
K2,147,483,647
C251
Comparison Comparison
value 1 value 2
FNC 55
K1000 K2000
DHSZ
Current value of C251
1000 >
S
999 → 1000
999 ← 1000
999 → 1000
999 ← 1000
S 1000 ≤ S ≤ 2000
2
2000 → 2001
2000 ← 2001
2000 → 2001
2000 ← 2001
S
2
> 2000
S
FNC No.
FNC 53 High-speed counter set
FNC 54 High-speed counter reset
FNC 55 High-speed counter zone compare
FNC189 High-speed counter move
FNC280 High-speed counter compare with data table
13 High-Speed Processing – FNC 50 to FNC 59
13.6 FNC 55 – HSZ / High-Speed Counter Zone Compare
Comparison Output
source destination
C251 Y000 K1000 > C251
K1000 ≤ C251 ≤ K2000
Change of output contact (Y)
Y000
ON
ON → OFF OFF → ON
OFF → ON ON → OFF
ON → OFF OFF → ON
OFF → ON ON → OFF
OFF
ON → OFF
OFF
OFF → ON
OFF
ON → OFF
OFF
OFF → ON
OFF
OFF
Instruction name
ON
→ Y000
→ Y001
C251 > K2000 → Y002
Y001 Y002
OFF OFF
OFF
OFF
OFF
OFF
ON OFF
OFF → ON
ON → OFF
OFF → ON
ON → OFF
OFF ON