Chapter 5 Relay Ladder Logic Programming 126
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R
un the program and don’t conduct the M01 contact, DRD4 output value, now, equals to the constant
preset value of AQ01, and AQ01 outputs 9.77V.
T
hen enable the M01, the DRD4 output value is depending on the value of V01, changing the value of V01
also influences the output value of AQ01 and DRD4.
E
xample 2: AQ01 preset value refers to other parameters, and the preset value of DRD4 refers to V01.
R
un the program, the current/output value of DRD4 will not be affected by V01 even the M01 turns ON, it
only depends on the A01 (AQ01 * 4.095=DRD4).
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