Automatic control function programming manual ladder language

16.3 Identify an Executable Module exechdl
Syntax
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exechdl(&string)
&string: Address of a string ending with a ZERO byte.
Reads the logic identifier of a function of an executable module from a C-language compiler.
Principle
The string addressed by &string contains the name of a C-language function.
To be recognised by the monitor, the function name must be sent from a C-language module by function exporte()
(see Sec. 16.4.9).
exechdl() must be called in the %INI task.
Return code
If OK
whexec > 0: Logic identifier of the executable module (value given on 16 bits). This identifier is used to call the
executable module by function exec().
Error
whexec == 0: The system does not know the name defined by &string.
Programming error causing a CPU fault
Access to a prohibited address:
- &string parameter error,
- end of string outside authorised area.