Exceptions
Exceptions are reactions to prohibited states of the program execution. The exception settings is defined in the Controller properties.
Options
| Stop When Exception |
Description |
| TRUE |
If there is an exception, the program execution stops. In the System status tab it is displayed which exception appeared, and where. |
| FALSE |
If there is an exception, the program keeps on running. The block output diplays the status according to the exception table:
NaN - the value is not a number
- Infinity
+ Infinity |
Exception catched in the System status:
Exceptions list
LN - natural logarithm
| Inputs |
Outputs |
| in = 0 |
-Infinity |
| in < 0 |
NaN |
LOG - common logarithm
| Inputs |
Outputs |
| in = 0 |
-Infinity |
| in < 0 |
NaN |
ASIN - Arc sinus
| Inputs |
Outputs |
| in < -1 |
NaN |
| in > 1 |
NaN |
ACOS - Arc cosinus
| Inputs |
Outputs |
| in < -1 |
NaN |
| in > 1 |
NaN |
ACOSH - Arc cosinus hyperbolicus
| Inputs |
Outputs |
| in < 1 |
NaN |
ATANH - Arc tangens hyperbolicus
| Inputs |
Outputs |
| in = -1 |
-Infinity |
| in = 1 |
+Infinity |
| in < -1 |
NaN |
| in > 1 |
NaN |
SQRT - Square root
| Inputs |
Outputs |
| in < 0 |
NaN |
EXP,EXP10, and ** - powers
| Inputs |
Outputs |
| "in" is too large |
+Infinity/-Infinity |
DIV - division without using en/eno
| Inputs |
Outputs |
| 0/0 |
NaN |
| X/0 where X<0 |
-Infinity |
| X/0 where X>0 |
+Infinity |
| X/0 where both inputs are ANY_INT |
0 |
DIV - division using en/eno
| Inputs |
Outputs |
| X/0 |
result=0 eno=false |
MOD - modulo without using en/eno
| Inputs |
Outputs |
| X mod 0 where inputs are real |
NaN |
| X mod 0 where inputs are ANY_INT |
0 |
MOD - modulo using en/eno
| Inputs |
Outputs |
| X mod 0 |
result=0 eno=false |
RD - read from variables
Invalid address or range always returns an area with zeros.
WR - write to variables
Invalid address or range results in no writing.
Indirect virtual method call
Invalid pointer or reference results in no call.
Read and write into memory
Reading or writing beyond the address space results in no action.
