Nematron Pointe Controller - Manual (Page 363)

Pointe Controller User Guide Appendix C: Ladder Diagram Block Reference
361
The block function is executed every time the ladder is scanned , so long as EN
remains on. If EN becomes off, then OUT remains at its last calculated value until
EN becomes on and the block function is executed again.
Configuration Reference
The parameters of this block are described in the following table:
Param Name Config Var Type Description
EN Enable no - The state of the rung (off/on)
received from the left.
ENO Enable
Out no - The state of the rung (off/on)
passed to the right.
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 subtracting the
second input value from the first
input value.
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.