SUB

Subtract inputs

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Libraries:

Description

The SUB block implements the SUB ladder logic instruction. When the rung conditions are true, the block subtracts source B (srcB) from source A (srcA) and outputs the result to the destination (dest).

Ports

Input

EnableIn — Enable Input

off (default) | on

Controls the execution of the block. EnableIn reflects the rung state preceding the block. If the rung state preceding the block is false, EnableIn is false, the block does not execute and the outputs are not updated.

srcA — First input signal

scalar

The first input signal to the subtraction operation.

Data Types: int8 | int16 | int32 | single

srcB — Second input signal

scalar

The second input signal to the subtraction operation.

Data Types: int8 | int16 | int32 | single

Output

EnableOut — Enable Output

off (default) | on

By default, EnableOut follows the state of EnableIn. If the EnableIn input to the block is false, the logic implemented by the block is not executed and EnableOut signal is set to false.

dest — Output signal

scalar

Output signal resulting from the subtraction operation.

Data Types: int8 | int16 | int32 | single

Version History

Introduced in R2019a