1. PLC Concepts

Example 3:

“Reverse current” existed in diagram (a) is not allowed for PLC processing principle.

 

 

X0

 

 

 

 

 

Instruction List

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LD

X0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X1

 

X2

OR

X1

 

 

 

 

 

 

 

 

 

 

 

AND

X2

 

 

 

 

 

 

 

 

 

 

 

 

 

X3

X4

 

 

 

 

 

 

LD

X3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AND

X4

 

 

 

 

 

 

 

 

 

 

 

(a)

 

 

 

 

 

 

 

 

 

 

ORB

 

 

 

 

 

 

 

 

 

 

 

 

 

Ø

X3 X4

X1 X2

X0

(b)

Instruction List

LD X3

AND X4

LD X1

OR X0

AND X2 ORB

Example 4:

For multiple outputs, connect the output without additional input devices to the top of the circuit for omitting MPS and MPP instructions.

 

X0

Y1

Instruction List

 

 

 

 

MPS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y0

AND

X0

 

 

 

 

OUT

Y1

 

 

 

 

 

 

 

 

 

 

MPP

 

 

 

 

 

 

OUT

Y0

Ø

Y0

Instruction List

X0

OUT Y0

Y1 AND X0 OUT Y1

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Image 23
Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Mps Out Mpp, OUT Y0 Y1 and X0 OUT Y1