MiniPLC Function Blocks
Phone Connectable - Real Time Clock - Voice Warning - Networking

 

AND

Serial connection of a certain number of NO contacts is shown in the line diagram as follow:

The symbol of AND is as shown in the follows:

This function block is called as AND, because only when all of I1, I2 and I3 are all in statues 1, the status of Output Q will be 1 (i.e. the output is closed).

Logic table of AND:

I1

I2

I3

I4

Q

0

0

0

0

0

0

0

0

1

0

0

0

1

0

0

0

0

1

1

0

0

1

0

0

0

0

1

0

1

0

0

1

1

0

0

0

1

1

1

0

1

0

0

0

0

1

0

0

1

0

1

0

1

0

0

1

0

1

1

0

1

1

0

0

0

1

1

0

1

0

1

1

1

0

0

1

1

1

1

1

 

 

     

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