Question

QUESTION 21

1. Which one of the following PLC 5 addressing statements is NOT true?

   		Input and output (I/O) addressing connects a field device at a terminal on an I/O module to a bit location in the processor memory.
   		A group is 16 input terminals (one 16 bit input word) and 16 output terminals (one 16 bit output word).
   		Processors support up to 24 racks; the processor can be any one of the racks in the system.
   		Terminals (called I/O points) attach field devices to PLC modules and to bits in processor memory.

3.333 points   

QUESTION 22

1. Which one of the following address elements is not used for the physical address of a Logix tag?

   		Rack: Rack is the rack number where the process is located.
   		Slot: Slot is the slot number of the I/O module.
   		Bit: Bit specifies the terminal on an l I/O module.
   		Type: Type specifies four types of data.

3.333 points   

QUESTION 23

1. Which one of the following number system conversion statement is NOT true?

   		The binary equivalent of 13 decimal is 1101 in binary.
   		The octal equivalent of 9 decimal is 12 in octal.
   		The binary equivalent of 8F2 hexadecimal is 100011110010 in binary.
   		The hexadecimal equivalent of 14 decimal is E in hexadecimal.

3.333 points   

QUESTION 24

1. Which one of the following scan statements is NOT true?

   		Scan time is affected by the length of the program.
   		A one second scan time is common.
   		Allen Bradley PLCs scan from left to right and top to bottom of the ladder logic.
   		Some instructions affect the length of the scan time.

3.333 points   

QUESTION 25

1. Which one of the following statements about Logix system addressing is NOT true?

   		Input and output data types are all global.
   		User-defined data types permit the creation of a unique (new) data type specific to the process being controlled.
   		Local tag data can be used in any program.
   		The tag data is local or global.

Answer 1

21) C.  Processors support up to 24 racks; the processor can be any one of the racks in the system
22) A.  Rack: Rack is the rack number where the process is located
23) B.  The octal equivalent of 9 decimal is 12 in octal.
24) B.  A one second scan time is common.
25) C.  Local tag data can be used in any program.