Author Question: Which one of the following statements for the SQL instruction is NOT true? A) The SQL instruction ... (Read 80 times)

Mr3Hunna · **on:** Jul 28, 2018

Which one of the following statements for the SQL instruction is NOT true?

A) The SQL instruction loads data into position 0 only if the instruction was true during the first PLC scan.
B) If length is 8, then 8 values or bit patterns of the source word are moved into the next word in a register file or an array.
C) Data is moved from a source address into a sequencer file on every false to true transition of the SQL instruction rung.
D) The SQL is a word-to-file transfer with a mask.

Question 2

Which one of the following statements for the SQC instruction is NOT true?

A) The SQL and SQC instructions are used as a pair, similar to the SQO and the SQI pair for the PLC 5 and ControlLogix PLCs.
B) The control file found bit (FD) in the SQC is used to indicate that a true match between the source and file stack words was verified.
C) The SQC instruction can be used as a diagnostic tool to determine if a machine has the correct switch/signal bit values in a register to start a production run.
D) The SQC instruction is similar to SQI for PLC 5 and ControlLogix.