5-10
5.2.5: Math Functions (AS / MD)
5
6
2
1
3
4
Ladder Display Examples
Function Diagram
Example:
The addition and subtraction function uses this formula in its calculation:
V1+V2-V3 = Calculation Result
In the example below, Base Value = 1, Addition Value = 5, and Subtraction Value = 2, resulting in 4 being returned.
Function
Diagram
Ladder Display
Example Value
Description
a
00004
00002
Calculation result
b
00001
Base Value V1 (AS1–AS4,MD1–MD4,T1–T8,C1–C8,V1–V7, constant )
c
00005
Addition Value V2 or Multiplication Value V2
(AS1–AS4,MD1–MD4,T1–T8,C1–C8,V1–V7, constant )
d
00003
Subtraction Value V3 or Division Value V3
(AS1–AS4,MD1–MD4,T1–T8,C1–C8,V1–V7, constant )
e
NOP
Error Signal Coil Output (M1–MF, NOP=No Error Output)
f
AS01
MD01
Addition and subtraction coil (AS1–AS4)
Multiply and Divide Coil (MD1–MD4)
Example:
The multiply and divide function uses this formula in its calculation:
V1xV2/V3 = Calculation Result
In the example below, Base Value = 1, Multiply Value = 5, and Divide Value = 2, resulting in 2 being returned.
Note:
Division function will round the result down to the previous whole number.