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Periodic tasks cause the controller to scan the code from the top of the ladder logic diagram to the bottom.

The ______________________________ instruction is used to transfer blocks of data to or from a memory location of another PLC.

Allen-Bradley SLC 500 series PLCs use the ____ standard.

The cable through which data and control signals flow on a network is known as ______________________________.

Which routine is called from within another routine?

A node in a PLC network may use ____.

In a Carrier Sense Multiple Access with Collision Detection (CSMA/CD), a node can transmit data ____.

A(n) ______________________________ protocol is a standard for the way nodes communicate on the network.

Which PLC network standard uses the Carrier Sense Multiple Access with Collision Detection (CSMA/CD)?

An Ethernet PLC network uses a ____ topology.