In a retentive timer, which bit represents the Done status?

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Enhance your skills with the PMMI Programmable Logic Controllers (PLC) 1 Test. Dive into multiple-choice questions with detailed explanations. Prepare effectively for your certification!

Multiple Choice

In a retentive timer, which bit represents the Done status?

Explanation:
The Done status is represented by the DN bit. In a retentive timer, DN goes high when the accumulated time reaches the preset value, signaling that the timer has completed its delay. Unlike other timer bits, DN acts as a completion flag and typically latches high until the timer is reset, which is why it’s the indicator of “Done.” The other bits have different roles: ACC holds the current elapsed (accumulated) time, PRE stores the target delay, and EN indicates whether the timer is currently enabled to count.

The Done status is represented by the DN bit. In a retentive timer, DN goes high when the accumulated time reaches the preset value, signaling that the timer has completed its delay. Unlike other timer bits, DN acts as a completion flag and typically latches high until the timer is reset, which is why it’s the indicator of “Done.” The other bits have different roles: ACC holds the current elapsed (accumulated) time, PRE stores the target delay, and EN indicates whether the timer is currently enabled to count.

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