Automatic control function programming manual ladder language

Programming error causing a CPU fault
Access to a prohibited address:
- *symbol parameter error,
- *symbol_addr error,
- end of symbol string outside the authorised area.
Importing an Object IMPORT
Syntax
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SINT32 IMPORT(SINT8 *symbol, void **symbol_addr)
symbol: Character string.
symbol_addr: Pointer to symbol pointer.
This function allows use of an object defined in another module. To be imported, an object must first be exported by
another object.
Report:
- 0 = OK
- -1 = call outside the initialisation task or too many import symbols.
Example
void(*import_function)();
main()
{
IMPORT(«LABEL», &import_function);
}
void test()
{
import_function();
function body
}
Programming error causing a CPU fault
Access to a prohibited address:
- *symbol parameter error,
- **symbol_addr error,
- end of symbol string outside the authorised area.