Holiday certificate required despite driver card ?

Hi have a short question about the driver card The following situation In the company Crafter (zgg 3,2 to) are used to get to the construction site. These have the digital tachograph. So I put my card in the device, whether I have a trailer with me or not. But now it is so that I don’t drive with the crafter every day but irregularly. Sometimes 4 weeks every day, sometimes a week not at all. 1 ) I would have to have a holiday for the days I don’t drive with the crafter. 2) What does it look like if I use our 12 to analog tachograph in between? Do I need a certificate for the non-driving days? 3) If I am on the road with our 40 to the digital tachograph, do I need a certificate for the non-driving days? Somehow no one really has any idea in Our company about it. If you are sent off with the 12 to get a certificate that you have not driven the last 14 days. No matter if on the driver card the rides with the crafter are recorded. Reason: Just say you have no driver card and done … If you drive with the 40 to you will only be looked if you were the last 14 days with the 40 to go and for every day you were not traveling in the time window with the 40 to get a certificate. calibrations with the crafter are also not taken into account. Somehow this is all quite chaotic