FATEK FBs-CB2 - FLOATING POINT NUMBER ZONE COMPARE (FUN207 FZCP)

Advanced Function Instruction
7-133
FUN 207 P
FZCP
FLOATING POINT NUMBER ZONE COMPARE
FUN 207 P
FZCP
S : Register for zone comparison
SU: The upper limit value
SL: The lower limit value
S, SU, SL may combine with V, Z, P0~P9 to
serve indirect address application
HR ROR DR K XR
Range
Operand
R0
∣
R383
9
R5000
∣
R8071
D0
∣
D4095
Floating
point
number
V、Z
P0～P9
S ○ ○ ○ ○ ○
Su ○ ○ ○ ○ ○
SL ○ ○ ○ ○ ○
Description
z The format of floating point number of Fatek-PLC follows the IEEE-754 standard. For detail explanation of
the format please refer to 5.3 (Numbering System) page 5-9.
z When compare control "EN" = 1 or "EN↑" ( P instruction) changes from 0 to 1, compares S with upper limit
SU and lower limit SL. If S is between the upper limit and the lower limit (S
L
≦S≦S
U
), then set the inside
zone flag "INZ" to 1. If the value of S is greater than the upper limit S
U
, then set the higher than upper limit
flag "S>U" to 1. If the value of S is smaller then the lower limit S
L
, then set the lower than lower limit flag
"S<L" as 1.
z The upper limit S
U
should be greater than the lower limit S
L
. If S
U
<S
L
, then the limit value error flag "ERR"
will set to 1, and this instruction will not carry out.
X0
EN
S :
Su :
R10
R12
207P.FZCP
INZ
S>U
S<L
Y0
S
L :
R14
ERR
z The instruction at left compares the value of
DR10 with the upper and lower limit zones
formed by DR12 and DR14. If the values of
DR10~DR14 are as shown in the diagram at
bottom left, then the result can then be
obtained as at the right of this diagram.
z If want to get the status of out side the zone,
then OUT NOT Y0 may be used, or an OR
operation between the two outputs S>U and
S<L may be carried out, and move the result
to Y0.