Nematron Pointe Controller User Manual
Page 386
Appendix C: Ladder Diagram Block Reference
Pointe Controller User Guide
384
The result placed in Q determines the state of the rung passed to the right: a
“true result turns the rung on and a “false result turns the rung off.
The block function is executed every time the ladder is
scanned
, so long as EN
remains on. If EN becomes off, then Q is immediately turned off regardless of the
values of IN1 and IN2.
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.
Q
Output
no
-
The result — false or true — of
comparing the two input values.
The result becomes 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
The first input value. The function
checks to see if this value is equal
to the second input value.
IN2
Input
Value 2
req
any Input
any Output
any Memory
T_DONE
T_VALUE
T_PREVAL
Numeric
The second 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.