XIC — Examine If Closed

dataBit

Passes power along the rung when the referenced bit is 1. Equivalent to a normally-open contact.

Operands

Name	Type
dataBit	BOOL

How It Works

If dataBit is 1, power passes through. If 0, power is blocked.

Example

XIC(Sensor)OTE(Lamp)

Lamp is energized while Sensor is 1.

Practice

Try XIC in the Lamp Follow exercise — drive a lamp straight from a button input.

Common Mistakes

• Using XIC to check that a bit is off. XIC only passes power when the bit is 1. To check for 0, use XIO.
• Examining a non-BOOL tag — XIC only takes BOOL. For numeric comparisons, use compare instructions.

Related

• XIO — the inverted counterpart
• OTE — the output coil typically paired with XIC
• Bit instructions overview