Instruction Manual

Appendix C: Ladder Diagram Block Reference Pointe Controller User Guide
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Param Name Config Var Type Description
IN1 Input
Value 1
req any Input
any Output
any Memory
T_DONE
T_VALUE
T_PREVAL
Numeric
The first input value.
IN2 Input
Value 2
req any Input
any Output
any Memory
T_DONE
T_VALUE
T_PREVAL
Numeric
The second input value.
OUT Output
Value
req any Input
any Output
any Memory
The result of adding the two input
values together.
NOTE: This function does not check for bit register overflow. You can assign any
variables you wish, but mixing variable sizes – for example, a 32-bit input and an
8-bit output – may result in unusable output.
C.3.2 Subtract (SUB)
When used in a Ladder Diagram, the SUB block subtracts one input from another
and sends the result to output.
Select the
tool (from the Math Blocks toolbar) and click on a ladder rung to
insert the following block:
Once the block is inserted, you can double-click on it to configure it.
Functional Description
This block always passes the Enable input state (EN) through to the Enable Out
output state (ENO) without change; when EN becomes on, ENO is turned on, and
when EN becomes off, ENO is turned off.
When EN becomes on, the block function is executed: the Input Value 2 (IN2) is
subtracted from the Input Value 1 (IN1) and the result is placed in the Output
Value (OUT).