Fnc 45 - Mean / Mean - Mitsubishi Electric FX3G SERIES Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 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
MEAN
2. Set data
Operand type
S
S
1
D
n
3. Applicable devices
Bit Devices
Oper-
and System User
Type
X Y M T C S D .b KnX KnY KnM KnS T C D R U \G
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
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,
330
Mnemonic
16-bit Instruction
P
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
3U
D S
1
FNC 45
S D
MEAN
D S
1
S D
S S + 2] + ......... + [{
] + [ + 3,
Operation Condition
Continuous
Operation
Pulse (Single)
Operation
Description
Word Devices
Special
System User
Unit
/FX PLCs.
3UC
is stored to D D .
1
S S
+
n
D S
+1, ] is stored to [
1
n
S + n × 2 − 1}, {
n
12 Data Operation – FNC 40 to FNC 49
12.6 FNC 45 – MEAN / Mean
Mnemonic
32-bit Instruction
DMEAN
13 steps
DMEANP
Con- Real
Index
stant Number
V Z Modify K H E
S
+ 1 + ......... + + n − 1
n
D D D D
+1, ].
1 1
S + n × 2 − 2}]
Operation Condition
Continuous
Operation
Pulse (Single)
Operation
Data type
16- or 32-bit binary
16- or 32-bit binary
16- or 32-bit binary
Others
Charac-
Pointer
ter String
" " P
D
D D
[ + 1, ]