XIC

Examine If Closed

Library:

Description

XIC is one of the building blocks of a ladder diagram. The XIC block implements the XIC ladder instruction. The block examines the operand tag (data bit) for an on condition. If the bit is set, the rung is enabled. If the bit is clear, the rung is disabled.

Parameters

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`Operand Tag` — Bit to be tested
A (default) | boolean

Specify the data bits to be tested. Data bits are specified in the format of tags. In Ladder Diagrams, tags (variables) are used for representing all inputs, outputs, and internal memory with attributes such as Data Type, Initial Value, and size. To change the attributes of the Operand Tag, open the Program Variables table within the Ladder Diagram Program block.