PLC Count-Down instruction
In word zero of the counter element , bit 15 represents ________.
Choose the correct addressing format of counter’s status bit (Enable bit).
The counter instruction counts each time the input logic changes the rung state from ________.
Eveytime the count-down instruction sees a false-to-true rung transition , a count-down counter’s accumulated value is ______ .
Counter are not retentive in nature. The above statement is ________.
In the word zero, of the counter element, _______ bit is set when the accumulated value of a count-down counter has reached the lowest possible accumulated value, which is -32,768. At This point, the counter will automatically wrap around and start counting down from the maximum negative value +32,767.
Statement 1:In order to reset a counter, the address of the reset instruction must match the address of counter that is to be reset.
Statement 2:Only one address is allowed per reset instruction.
Statement 2:Only one address is allowed per reset instruction.
In default counter file, how to address the counter’s 14 preset value?
In file 27, how to address the counter’s 11 , accumulated value ______.