Day change

If an input is operated in Cnt.Day mode, all of the pulses up to the day changing time at midnight based on the time zone selected using the "Time zone" parameter are added up. This parameter is located in the "Basic settings" configuration section (see Basic settings). The current counter reading is calculated at the time of every measurement. The counter reading is recorded in the record interval that generates a rising gradient in the measurement value graphics on the myDatanet server. The highest value of the day equates to the value that was determined during the last record before the day change. At the time of the day change, the temporary memory, in which the counter reading is added up, is set to the difference between the current and last recorded value. This means that if pulses have been detected since the last record before the day change, the measurement value graphic for the new day does not start with 0 but with the calculated counter reading that is dependent on the number of detected pulses. The measurement value graphic for the new day does not start with 0 even if pulses are detected between the day change and first record. The counter reading calculated during the measurement cycle (green line in the following figures) is also required if an unscheduled record should be completed following initiation of a trigger (e.g. by a digital input).