Fnc 45 - Mean / Mean - Mitsubishi FX3G Series Programming Manual

FX /FX /FX /FX
3G 3U 3GC 3UC
Programming Manual - Basic & Applied Instruction Edition
12.6 FNC 45 – MEAN / Mean
Outline
This instruction obtains the mean value of data.
1. Instruction format
FNC 45
D P
MEAN
2. Set data
Operand type
S S
1
D
n
3. Applicable devices
Bit Devices
Oper-
System User
and
Type
X Y M T C S D .b KnX KnY KnM KnS T
S S
1
S
D
2
n
: This function is supported only in FX
Explanation of function and operation
1. 16-bit operation (MEAN and MEANP)
The mean value of "n" 16-bit data from
• The sum is obtained as algebraic sum, and divided by "n".
• The remainder is ignored.
Command
input
FNC 45
MEAN
2. 32-bit operation (DMEAN and DMEANP)
The mean value of "n" 32-bit data from [
• The sum is obtained as algebraic sum, and divided by "n".
• The remainder is ignored.
Command
input
FNC 45
DMEAN
S S
[ + 1,
Series
Mnemonic
16-bit Instruction
7 steps MEAN
MEANP
Head word device number storing data to be averaged
Word device number storing the mean value result
Number of data to be averaged (1 ≤ n ≤ 64)
Digit Specification
/FX
3U 3UC
D S
is stored to
1
S D
D S +1,
1
S D
+ 2] + ......... + [{
S S
] + [ + 3,
n
Operation Condition
32-bit Instruction
Continuous
13 steps
Operation
Pulse (Single)
Operation
Description
Word Devices
Special
System User
Unit
C D R U \G V
PLCs.
D D
.
1
+ 1 + ......... +
S S
+
n
D S ] is stored to [ D D +1,
1 1
n
+ n × 2 − 1}, {
S S
12 Data Operation – FNC 40 to FNC 49
12.6 FNC 45 – MEAN / Mean
Mnemonic Operation Condition
Continuous
DMEAN
Operation
Pulse (Single)
DMEANP
Operation
Data type
16- or 32-bit binary
16- or 32-bit binary
16- or 32-bit binary
Others
Con- Real Charac-
Index
stant Number ter String
Z Modify K H E " "
+ n − 1
S
n
D D ].
1
+ n × 2 − 2}]
D
[ + 1,
11
12
13
14
Pointer
15
P
16
17
D
18
19
D
]
20
323