Which of the following is NOT a correct statement when troubleshooting timer ladder logic?
A) Most difficult ladder timer programs to test have linked or cascaded timers, large PRE values, and very slow execution times.
B) The timer dialog boxes are used to track timer data as the program executes.
C) Timers are tested starting with the first in the sequence, and then add one timer at a time until the total sequence is operational.
D) A PLC simulator from the PLC manufacturer helps in program verification and troubleshooting in the off-line mode.
A
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