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XIC — Examine If Closed

dataBit

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

Operands​

NameType
dataBitBOOL

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.

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.