RETURN
Statement - Jump to the end of the program.
Remarks
The RETURN statement jumps to the end of the program. In FBD language, the return statement is represented by the "<RETURN>" symbol. The input of the symbol must be connected to a valid boolean signal. The jump is performed only if the input is TRUE. In LD language, the "<RETURN>" symbol is used as a coil at the end of a rung. The jump is performed only if the rung state is TRUE.
When used within an action block of a SFC step, the RETURN statement jumps to the end of the action block.
ST Language
IF NOT bEnable THEN
RETURN;
END_IF;
The rest of the program will not be executed if bEnabled is FALSE.
FBD Language
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In this example the TON block will not be called if bIgnore is TRUE:
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LD Language
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In this example the second rung will be skipped if ENABLE is FALSE:
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RETURN |
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IEC 61131-3 Automation platform > Programming - Reference guide > Basic Operations > RETURN |
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