The Allen-Bradley SLC-500 address O:3/0 refers to which of the following?

Study for the Programmable Logic Controller (PLC) Test. Prepare with flashcards and multiple choice questions, each question provides hints and explanations. Get ready for your exam!

Multiple Choice

The Allen-Bradley SLC-500 address O:3/0 refers to which of the following?

Explanation:
In PLC addressing, the letter O means an output, the number after the colon identifies which module in the rack (slot 3 here), and the /0 is the first bit within that module’s output word. So O:3/0 points to the first output bit on the module in slot 3. On a typical 8-point DC output module, the first bit controls terminal four. Therefore, O:3/0 corresponds to the output terminal four on the module in slot three. Always double-check the module’s wiring diagram, since terminal mappings can vary by hardware.

In PLC addressing, the letter O means an output, the number after the colon identifies which module in the rack (slot 3 here), and the /0 is the first bit within that module’s output word. So O:3/0 points to the first output bit on the module in slot 3. On a typical 8-point DC output module, the first bit controls terminal four. Therefore, O:3/0 corresponds to the output terminal four on the module in slot three. Always double-check the module’s wiring diagram, since terminal mappings can vary by hardware.

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