On what OB do I need to insert the EQ_DT block? I have tried inserting that block to several OBs but still doesnt get the ret val of 1 when DT1 and DT2 are equal. I also tried to put identical static time and date to DT1 and DT2 and the block works.But when comparing the current time to a specific time, the moment its equal theEQ_DT block doesnt output ret_val = 1? Any idea ? I have attached a screenshot of my CFC program.

Im using PLCSIM for my simulation

I reaaly appreciate your response.

Thanks and best regards,

boycemento

Philippines