Mitsubishi Electronics FX3G User Manual
359
FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
Series
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
C3
C30
-FN
C3
9
R
ota
tion and
Shi
ft
ft
12
FN
C40-FN
C40-FN
C49
D
ata O
perati
perati
on
13
FNC
50-FNC
59
High-Speed
Proc
essing
14
FM
C60-FN
C60-FN
C69
H
andy
In
struction
15
FN
C70-FN
C70-FN
C79
E
xternal
F
X
I/O
De
vice
16
FNC
80-FNC
89
External
FX
Dev
ice
ice
17
FNC1
00-
FNC10
00-
FNC10
9
Dat
a
a
Transfer 2
18
FNC1
10-
FNC139
FNC139
Fl
oati
ng Poi
nt
19
FNC14
0-F
N
C
149
Da
ta
Operation 2
20
FNC1
50-
FNC159
FNC159
Pos
itioning
itioning
Control
13.6
FNC 55 – HSZ / High-Speed Counter Zone Compare
Outline
This instruction compares the current value of a high-speed counter with two values (one zone), and outputs the
comparison result to three bit devices (refresh).
comparison result to three bit devices (refresh).
→ For the table high-speed comparison mode, refer to Subsection 13.6.2.
→ For the frequency control mode, refer to Subsection 13.6.3.
1. Instruction format
2. Set data
3. Applicable devices
S1: "D .b" is available only in FX
3U
and FX
3UC
PLCs. However, index modifiers (V and Z) are not available.
S2: This function is supported only in FX
3G
/FX
3GC
/FX
3U
/FX
3UC
PLCs.
S3: This function is supported only in FX
3U
/FX
3UC
PLCs.
Explanation of function and operation
1. 32-bit operation (DHSZ)
The current value of a high-speed counter (C235 to C255) specified in
is compared with two comparison points
(comparison value 1 and comparison value 2). Based on the comparison result, "smaller than the lower comparison
value", "inside the comparison zone" or "larger than the upper comparison value", one among
value", "inside the comparison zone" or "larger than the upper comparison value", one among
,
+1 and
+2 is set to ON regardless of the operation cycle.
In this instruction, the comparison processing is executed after the count processing in the high-speed counter.
Operand Type
Description
Data Type
Data to be compared with the current value of a high-speed counter or word device
number storing data to be compared (comparison value 1)
number storing data to be compared (comparison value 1)
32-bit binary
Data to be compared with the current value of a high-speed counter or word device
number storing data to be compared (comparison value 2)
number storing data to be compared (comparison value 2)
32-bit binary
Device number of a high-speed counter [C235 to C255]
32-bit binary
Head bit device number to which the comparison result is output based on upper and
lower comparison values
lower comparison values
Bit
Oper-
and
Type
Bit Devices
Word Devices
Others
System User
Digit Specification
System User
Special
Unit
Index
Constant
Real
Number
Charac-
ter String
Pointer
X Y M T C S D .b KnX KnY KnM KnS T C D
R
U \G
V Z Modify
K
H
E
" "
P
S
2
S
3
S
2
S
3
S
1
Mnemonic
Operation Condition
32-bit Instruction
17 steps DHSZ
Continuous
Operation
16-bit Instruction
Mnemonic
Operation Condition
−
FNC 55
HSZ
D
S
1
S
2
S
D
S
1
S
2
S
D
S
D
D
D
→
Set to ON.
Comparison
value 2
Comparison
source
Output
destination
S
1
FNC 55
DHSZ
K2,147,483,647
>
+1
+2
S
Comparison
value 1
S
1
D
S
2
S
S
S
1
S
S
S
2
S
2
D
D
D
→
→
≤
≤
>
Command
input