In a PLC tag, the last component identifies which of the following?

In a PLC tag, the last component identifies which of the following?

• A. Data Type
• B. Program Name
• C. Terminal Location Number
• D. Sensor Address

Answer: (C)

The last piece in a PLC tag is the terminal location number, which identifies the exact physical connection on the I/O module where the signal is wired. This maps the logical tag to a specific input or output terminal so the PLC knows where to read from or write to in the hardware. The data type tells the PLC how to interpret the stored value, and the program name indicates which program owns the tag, but the terminal location number is the hardware address that ties the tag to a concrete location on the I/O rack. In short, it’s the precise terminal on the module that the tag corresponds to.

The last piece in a PLC tag is the terminal location number, which identifies the exact physical connection on the I/O module where the signal is wired. This maps the logical tag to a specific input or output terminal so the PLC knows where to read from or write to in the hardware. The data type tells the PLC how to interpret the stored value, and the program name indicates which program owns the tag, but the terminal location number is the hardware address that ties the tag to a concrete location on the I/O rack. In short, it’s the precise terminal on the module that the tag corresponds to.