Unication Messenger m90 Manual de usuario descargar pdf (Pagina 178)

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U90 Ladder Software Manual

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If MI 1 value is not greater or equal to constant integer 35; then MB 50 will go to logic

"0" (OFF).

Greater Than

The Greater Than function block evaluates input A to see if its current value is greater than

input B.

If input A is greater than input B: power will flow through the function block.

If input A is not greater than input B: power will not flow through the function block.

According to the above example:

If MI 1 value is greater than 35; then MB 50 will go to logic "1" (ON).

If MI 1 not greater than 35; MB 50 will go to logic "0".

Care must be taken when using greater and less than function blocks. Do not create a

program with instructions for Greater Than and Less Than but without an instruction block

for how to proceed in a situation where input A equals input B.

Less or Equal

The Less Than or Equal To function block evaluates input A to see if its current value is

less than or equal to input B.

If input A is less than or equal to input B: power will flow through the function block.

If input A is not less than or equal to input B: power will not flow through the function block.

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Unication Messenger m90 Manual de usuario Pagina 178

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