Schneider Electric SR2MAN01 xl Comparison Operator, x1 - H ≤ x2≤ x1 + H, Values to compare

LD Language Elements

Configuration from Front Panel

The simple comparison formula is as follows:

xl <Comparison Operator > x2

The comparison formula, for a comparison with hysteresis:

x1 - H ≤ x2≤ x1 + H

The parameters to enter are the following:

zValues to compare,

zComparison operator,

zReference value,

zHysteresis parameter,

zParameter lock.

Values to compare:

Symbol of values to compare:

x1 x2

These variables are chosen from among the following:

zNumbered analog inputs from IB to IG (maximum configuration),

zReference value R

Comparison operator:

The comparison operator is chosen using the number in the upper right-hand side of the screen.

The table below provides the correspondence between this number and the comparison formula that will be used:

Number	Comparison formula
1	x1 > x2
2	x1 ≥ x2
3	x1 = x2
4	x1 ≠ x2
5	x1 ≤ x2
6	x1 < x2
7	comparison with hysteresis: x1 - H ≤ x2 ≤ x1 - H

130 SR2MAN01 11/2007