State which one instruction (BSR, LIM, FFU, LFU, SQo, TND, NEQ, SBR, RET) is bes

Question

State which one instruction (BSR, LIM, FFU, LFU, SQo, TND, NEQ, SBR, RET) is best suited to the application shown 1. Make a subroutine stop running and return control to the routine that called it. Store a group of 8 binary bits by moving bits in one at a time. Determine if a number is outside of a specified range. Remove the most recently added word of data from a register. Cause a pre-defined sequence of lights to turn on in a repeated pattern. Determine if two numbers are different from one another. 2. Which of the following statements are true? (Circle the letter of each true statement) a.) A user may force l/O in a PLC program to troubleshoot hardware. b.) An MEQ instruction is used to determine if a number is more than or equal to another number c.) The SQC instruction can be used in a SLC500 to determine if a set of inputs match a given sequence. d.) After the last step in an SQO instruction is completed there is a return to the 0th step. e.) In a ControlLogix system, a single SQO instruction can be used to control 32 discrete outputs f) Every JMP instruction must have one and only one SBR instruction associated with it. For a SLC500 processors, how many 16-bit words of memory would be required for a.) The destination of an FAL instruction with an address of N7:6 and a length of 8. 3. each of the following situations? b) The destination of an FAL instruction with an address of #N7:2 and a length of 8. c.) The file of a BSR instruction with an address of #B31 and a length of 32. d) The file of an SQO instruction with an address of #B35 and a length of 6 4. An MVM instruction in a SLC500 has the following values before it is energized.

Explanation / Answer

1.

a) RET

b) SBR

c) LIM

d) LFU

e) SQO

f) NEQ

2)

a) TRUE

b) FALSE

c) TRUE

d) TRUE

e) FALSE

f) TRUE

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