Mitsubishi Electric MELSEC FX3U Programming Manual page 703

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
2. 32-bit operation (DLIMIT and DLIMITP)
Depending on how the input value (32-bit binary value) specified by [
between [ +1,
S
1
Command
input
FNC256
DLIMIT
S
In the case of "Lower limit value > Input value" .................................... Lower limit value → Output value
S
In the case of "Upper limit value < Input value" .................................... Upper limit value → Output value
S
In the case of "Lower limit value ≤ Input value ≤ Upper limit value" .... Input value →
• When controlling the output value using only the upper limit value, set "-2,147,483,648" to the lower limit
value specified in [
• When controlling the output value using only the lower limit value, set "2,147,483,647" to the upper limit
value specified in [
Error
An operation error is caused when the instruction is executed in the setting status shown below; The error flag
M8067 turns ON, and the error code (K6706) is stored in D8067.
16-bit operation
32-bit operation
] and [ +1,
S S S
1 2
S S
1 2
S S
S
+1, 1 3 +1,
1 3
S
S
2 S
2 +1, 3 +1,
3
S
S
+1, 1 S
1 3 +1,
3
Output
value
Input
value
+1, ].
S S
1 1
+1, ].
S S
2 2
Relationship
≤
S S
1 2
] ≤ [
[ S +1, S S +1,
1 1 2
29 Data Table Operation – FNC250 to FNC269
S
], the output value [
D
2
S
D
3
S
+1,
1
S
2 +1,
S
S S
+1, 3 +1,
2 2
Output
value
S
S
+1, 1
1
Specified
S ]
2
29.1 FNC256 – LIMIT / Limit Control
+1, ] compares to the range
S
3 3
+1, ] is controlled.
D
S
D D
1 +1,
S
D
2 D
+1,
S
D D
3 +1,
Output value
( D D )
+1,
S
S
2 +1,
Specified
Input value
( S
3 +1,
21
22
23
24
2
)
S
3
25
26
27
28
29
30
701