I searched the forum first to no avail. I am using a SLC5/03 with the latest firmware. I HAVE a RTC and can see it in the controller properties, but I cannot find a "Day of the Week" register/value anywhere.
I have heard that there is a way to calculate it based on the date, but I haven't found it yet. I am making a "Time Clock" for the customer so that they can choose the days of the week to turn ON their heaters ahead of the operator arriving to start the machine up.
If anyone can point me to the calculation. I would be ever so grateful!