S5-95F STEP 5 Operations
Unconditional Block Call “JU”
One block is called within another block, regardless of conditions.
Example: A special function has been programmed in FB26. It is called at several locations in
the program, e.g., in PB63, and processed.
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JU FB 26
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The “JU FB26” statement in program
block PB63 calls function block FB26.
STL ExplanationProgram Sequence
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PB63 FB26
JU FB26
Conditional Block Call “JC”
One block is called within another block when the previous condition has been satisfied
(RLO = “1”).
Example: A special function has been programmed in FB63. It is called and processed under
certain conditions, e.g., in PB10.
FB63
STL
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S F 1.0
A I 0.0
JC FB 63
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The "JC FB63" statement in program
block PB10 calls function block FB63
if input I 0.0 is "1".
ExplanationProgram Sequence
A I 0.0
PB10
JC FB63
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EWA 4NEB 812 6210-02
8-33
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