Hitachi NJI-350B User Manual
Page 184
Chapter 5 Instruction Specifications
5-134
Item number
FUN instructions-10
Name
High-speed counter current value clear
Ladder format
Condition code
Processing time (
µs)
Remark
R7F4
R7F3
R7F2
R7F1
R7F0
Average Maximum
FUN 145 (s)
DER
ERR
SD
V
C
↕
z
z
z
z
Instruction format
Number of steps
157
Condition
Steps
FUN 145 (s)
—
3
Bit
Word
Double word
Usable I/O
X
Y
R,
M
TD, SS,
CU, CT
WX WY
WR,
WM TC DX DY
DR,
DM
C
o
nstant
Other
s
Argument (counter
number)
{
Function
Counter number: H01 to H04
**:
Disable area
• The output value will be changed according to the output condition (on-preset value, off-preset value settings) if the count
value of the specified counter number is cleared and coincidence output is possible.
Notes
• If a value other than H01 to H04 is specified for the counter number, DER will be set to “1” and no processing will be
performed.
• If the specified counter number is set to a function other than a corresponding external I/O counter (single-phase counter,
two-phase counter), DER will be set to “1” and no processing will be performed.
• Since Counter 4 is invalid when a 10-point CPU is used, if Counter 4 is specified, DER will be set to “1” and no processing
will be performed.
• If the specified counter number is unable to make an output (PI/O function setting result by R7F5), DER will be set to “1”
and no processing will be performed.
• This instruction is used only to clear the count value. Other counter settings will not be changed and it will not affect the
count operation.
Program example
R5
LD
R5
AND DIF5
[
WR5 = H100
FUN 145 ( WR5 )
]
DIF5
WR5 = H0100
FUN 145 (WR5)
Program description
• The count value of the counter No. 1 is cleared.
S
Counter number
* *
15
8 7
0
FUN 145 (s
)