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Instruction 4- rising edge (transitional contact) – Maple Systems MAPware-7000 User Manual

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17

MAPware-7000 Ladder Logic Guide

1010-1041 rev. 00

Instruction 4- Rising Edge (Transitional Contact)

Expression:

Space Requirement: 1 line x 1 column Location Requirement: Left rail, Middle

Function:

When the input at last scan is OFF and the input at this scan is ON, the output is turned ON. This
instruction is used to detect the input changing from OFF to ON.

Execution Condition:

Input

Operation

Output

OFF

Regardless of the input state at last scan.

OFF

ON

When the input state at last scan is OFF.

ON

When the input state at last scan is ON.

OFF

Operand:

No operand is required.

Example:

Timing Diagram:

Coil Y0002 comes ON for only 1 scan when the device X0000 comes ON.