Which statement describes a Direct Connection between a machine controller and a PLC?

Which statement describes a Direct Connection between a machine controller and a PLC?

• A. It Uses Intermediary Signal Converters
• B. The Terminals Of One Machine Are Directly Wired To The Terminals Of The Other Machine
• C. The PLC Outputs Are Wired To Input Replacements Only
• D. It Relies On Relay Isolation

Answer: (B)

Direct connection means there is no intermediary device between the two controllers; signals go straight from one device’s terminals to the other. Saying that the terminals of one machine are directly wired to the terminals of the other machine captures this idea because it describes a simple point-to-point electrical link without converters, intermediate modules, or isolation components. Other options introduce something between the devices or add substitutions—intermediary signal converters, wiring to input replacements, or relay isolation—so they are not direct connections.

Direct connection means there is no intermediary device between the two controllers; signals go straight from one device’s terminals to the other. Saying that the terminals of one machine are directly wired to the terminals of the other machine captures this idea because it describes a simple point-to-point electrical link without converters, intermediate modules, or isolation components.

Other options introduce something between the devices or add substitutions—intermediary signal converters, wiring to input replacements, or relay isolation—so they are not direct connections.