Delta DVP-ES2 - Manual (Page 635)

5 . S e q u e n t i a l F u n c t i o n C h a r t
Ladder diagram of simultaneous divergence:
X0
SET
SET S22
S21 S
SET S23
S20
SET S24
SFC diagram of simultaneous divergence:
S20
S21 S22 S23 S24
2. Structure of Alternative Divergence
When the individual condition at the current status is true, the step will be transferred to
another individual step. For example, when X0 = ON, S20 will be transferred to S30; when X1
= ON, S20 will be transferred to S31; when X2 = ON, S20 will be transferred to S32.
Ladder diagram of alternative divergence:
X0
SET
SET S31
S30 S
SET S32
S20
X1
X2
SFC diagram of alternative divergence:
S20
S30 S31 S32
X0 X1 X2
3. Structure of Simultaneous Convergence
Consecutive STL instructions construct a simultaneous convergence structure. When the
transition condition is true after continuous steps, the operation will be transferred to next step.
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