Mitsubishi Electric MELSEC FX3U Programming Manual page 704

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
Program examples
1. Program example 1
In the program example shown below, the BCD data set in X020 to X037 is controlled by the limit values "500"
to "5000", and the controlled value is output to D1 when X000 turns ON.
X000
FNC256
Operation
• In the case of "D0 < 500", "500" is output to D1.
• In the case of "500 ≤ D0 ≤ 5000", the value of D0 is output to
D1.
• In the case of "D0 > 5000", "5000" is output to D1.
2. Program example 2
In the program example shown below, the BCD data set in X020 to X057 is controlled by the limit values
"10000" and "1,000,000", and the controlled value is output to D11 and D10 when X000 turns ON.
X000
FNC256
DLIMIT
Operation
• In the case of "(D1, D0) < 10000", "10000" is output to (D11,
D10).
• In the case of "10000 ≤ (D1, D0) ≤ 1,000,000", the value of
(D1, D0) is output to (D11, D10).
• In the case of "(D1, D0) > 1,000,000", "1,000,000" is output
to (D11, D10).
702
FNC 19
BIN
K500 K5000
LIMIT
FNC 19
DBIN
K10000
K1000000
K4X020 D0
D0 D1
END
K8X020 D0
D0 D10
END
29 Data Table Operation – FNC250 to FNC269
29.1 FNC256 – LIMIT / Limit Control
Output (D1)
5000
500
500 5000
Output (D11,D10)
1,000,000
10000
10000 1,000,000
Input (D0)
Input (D1,D0)