Periodic tasks cause the controller to scan the code from the top of the ladder logic diagram to the bottom.
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The ______________________________ instruction is used to tr…
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.
Allen-Bradley SLC 500 series PLCs use the ____ standard.
The cable through which data and control signals flow on a n…
The cable through which data and control signals flow on a network is known as ______________________________.
Which routine is called from within another routine?
Which routine is called from within another routine?
A node in a PLC network may use ____.
A node in a PLC network may use ____.
In a Carrier Sense Multiple Access with Collision Detection…
In a Carrier Sense Multiple Access with Collision Detection (CSMA/CD), a node can transmit data ____.
A(n) ______________________________ protocol is a standard f…
A(n) ______________________________ protocol is a standard for the way nodes communicate on the network.
Which PLC network standard uses the Carrier Sense Multiple A…
Which PLC network standard uses the Carrier Sense Multiple Access with Collision Detection (CSMA/CD)?
An Ethernet PLC network uses a ____ topology.
An Ethernet PLC network uses a ____ topology.