Advanced

These options allow the user to specify specific behaviors, suggested only for expert users:

• LD evaluate edges on each network: this option allows the user to change edges evaluation timing (high/low).
• If it is NOT checked, the edges of an LD2 program are evaluated only once, at the beginning of the program execution.
• If it is checked, the edges of an LD2 program are evaluated at the beginning of every LD network.
• External access to local vars of function blocks: if this option is NOT checked, the lo- cal variables of a function block, are considered private and accessible only inside the function block. (standard IEC behavior).
• If this option is checked, the local variables of a function block are considered as IN/ OUT variables; so they are visible and accessible also from the caller of the function block instance.