NORD Drivesystems BU0550 - Manual (Page 29)

3 AWL (Instruction List, IL)
BU 0550 GB-0813 29
3.2.3 Extended mathematical operators
Operator Explanation
EXP Exponential function
LOG Logarithm, base 10
LN Logarithm, base e
SQRT Root
COS, ACOS
Trigonometrical operators SIN, ASIN
TAN, ATAN
Table 21 Overview of extended mathematical operators
NOTE
The operators listed here require a large amount of computation. This may result in a
considerably longer running time for the PLC program.
3.2.3.1 EXP
Forms the exponential of the accumulator to the base of Euler's number (2.718). Up to 3 places behind the
decimal point may be stated, i.e. 1.002 must be entered as 1002.
1000
1000  





 Akku
e Akku
BOOL BYTE INT DINT
Possible data types X
Commands Explanation
LD 1000
EXP Result = 2718
ST Var1
Table 22 EXP
3.2.3.2 LOG
Forms the logarithm to base 10 from the accumulator. Up to 3 places after the decimal point may be stated,
i.e. 1.000 must be entered as1000.
1000
1000
10
log
 





 Akku
Akku
BOOL BYTE INT DINT
Possible data types X
Commands Explanation
LD 1234
LOG Result = 91
ST Var1
Table 23 LOG