As shown in the illustrated block diagram...

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Question 1 of 205eccefa5bacbc34ba4d48854

As shown in the illustrated block diagram for a programmable logic controller system, what functional component is used to convey signals from the processor to motor starter coils, valve solenoids, and other such devices? See illustration EL-0225.

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🔍 Key Concepts

• PLC I/O architecture – difference between input modules and output modules • Role of the processor (CPU) module versus field devices like motors and valves • How field outputs (coils, solenoids, starters) are physically wired to the PLC rack

💭 Think About

• In the diagram, which labeled section is directly connected to the motor starters, solenoids, and other actuators – the CPU, the power supply, or a specific group of I/O modules? • Are motor starter coils and valve solenoids considered INPUTS that send signals to the PLC, or OUTPUTS that receive commands from the PLC? • Which option in the choices most clearly describes the hardware that sends different electrical signal types (DC, AC, analog) from the PLC to the field devices?

✅ Before You Answer

• Identify whether coils and solenoids are controlled by the PLC or sensing for the PLC • Confirm which side of the I/O bank in the illustration is labeled for outputs rather than inputs • Match the wording in the choice you select to both the signal direction (outgoing) and the types of signals (DC, AC, analog) shown in the block diagram

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