FPΣ
13.8 Table of Instructions
13 - 65
No. Name Boolean Operand Description Steps
Floating-point type real number data processing instructions
F345 Floating-point
type data
compare
FCMP S1, S2 (S1+1, S1) > (S2+1, S2) → R900A: on
(S1+1, S1) = (S2+1, S2) → R900B: on
(S1+1, S1) < (S2+1, S2) → R900C: on
10
F346 Floating-point
type data band
compare
FWIN S1, S2, S3 (S1+1, S1) > (S3+1, S3) → R900A: on
(S2+1, S2) (S1+1, S1) (S3+1,S3) → R900B: on
(S1+1, S1) < (S2+1, S2) → R900C: on
14
F347 Floating-point
typedata upper
and lower limit
control
FLIMT S1, S2,
S3, D
When (S1+1, S1) > (S3+1, S3), (S1+1, S1) → (D+1, D)
When (S2+1, S2) < (S3+1, S3), (S2+1, S2) → (D+1, D)
When (S1+1, S1) (S3+1, S3) (S2+1, S2),
(S3+1, S3) → (D+1, D)
18
F348 Floating-point
type data dead-
band control
FBAND S1, S2,
S3, D
When (S1+1, S1) > (S3+1, S3),
(S3+1, S3) - (S1+1, S1) → (D+1, D)
When (S2+1, S2) < (S3+1, S3),
(S3+1, S3) - (S2+1, S2) → (D+1, D)
When (S1+1, S1) (S3+1, S3) (S2+1, S2),
0.0 → (D+1, D)
18
F349 Floating-
point type data
zone control
FZONE S1, S2,
S3, D
When (S3+1, S3) < 0.0,
(S3+1, S3) + (S1+1, S1) → (D+1, D)
When (S3+1, S3) = 0.0, 0.0 → (D+1, D)
When (S3+1, S3) > 0.0,
(S3+1, S3) + (S2+1, S2) → (D+1, D)
18
Process control instruction
F355 PID processing PID S PID processing is performed depending on the control
value (mode and parameter) specified by (S to S+2)
and (S+4 to S+10), and the result is stored in the
(S+3).
4
Data compare instructions
F373 16-bit data
revision
detection
DTR S, D If the data in the 16-bit area specified by “S” has
changed since the previous execution, internal relay
R9009 (carry flag) will turn on. “D” is used to store the
data of the previous execution.
6
F374 32-bit data
revision
detection
DDTR S, D If the data in the 32-bit area specified by (S+1, S) has
changed since the previous execution, internal relay
R9009 (carry flag) will turn on.
(D+1, D) is used to store the data of the previous exe-
cution.
6
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