O

Words starting with O.

• ONSOne shot rising. Lets power through for one scan when its input turns on, then blocks it until the input has gone off and on again.
• OPC UAAn industrial protocol where a server lists its tags and a client browses them and reads or writes them.
• OSFOne shot falling. Lets power through for one scan when its input turns off.
• OTEOutput coil. A coil that is on only while its rung is true, and off as soon as the rung is false.
• OTLLatch. Turns its tag on when its rung is true and leaves it on, even after the rung goes false.
• OTUUnlatch. Turns a latched tag off when its rung is true.
• outputA signal the PLC sends out to a device, such as a lamp or a motor. The logic decides when it is on.
• output imageThe output values the logic writes during a scan. The real outputs are updated from this copy at the end of the scan, all together.