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Example - Ladder Diagram

E=​

The E= instruction compares a REAL value, S1, to another REAL value, S2, and executes if S1 is equal to S2.

LDE Execution Condition Example​


When the result of the instruction execution of the expression D26 = D28 (1.200000 = 0.000000) is FALSE, the coil, Y0.6, is deenergized.



When the result of the instruction execution of the expression D26 = D28 (1.200000 = 1.200000) is TRUE, the coil, Y0.6, is energized.

Memory Monitor​

ANDE Execution Condition Example​


When the result of the instruction execution of the expression D30 = D32 (3.100000 = 0.000000) is FALSE, and the contact, M0.0 is ON (1), the coil, Y0.7, is deenergized.



When the result of the instruction execution of the expression D30 = D32 (-3.100000 = -3.100000) is TRUE, and the contact, M0.0 is ON (1), the coil, Y0.7, is energized.

Memory Monitor​

ORE Execution Condition Example​


When the result of the instruction execution of the expression D34 = D36 (2.500000 = 0.000000) is FALSE, or the contact, M0.0 is ON (1), the coil, Y0.8, is energized.



When the result of the instruction execution of the expression D34 = D36 (0.000000 = 0.000000) is TRUE, and the contact, M0.1 is OFF (0), the coil, Y0.8, is energized.

Memory Monitor​