Observation:

d.0 = Heating part load : Adjustable in KW (factory setting max)
d.1 = Pump Overrun in CH mode : 2 - 60 min (factory setting 5 min)
d.2 = max burner anti cycle at 20°C flow temp : 3 - 60 min (factory setting 20min)
d.5 = Flow temp set point : in °C, min 28 max 82
d.8 = External controls demand : 0 = no demand 1 = demand
d.9 = Flow target temp from external intelligent control : In °C
d.10 = Pump status : 1 = on, 0 = off
d.11 = Additional pump status (optional) : 1 to 100 = on, 0 = off
d.13 = HW pump (via accessory mode) : 1 to 100 = on, 0 = off
d.23 = Summer /Winter function : 1 = winter, 0 = summer
d.25 = HW activation via eBUS control : 1 = yes, 0 = no
d.33 = Fan speed target value : in rpm/10
d.34 = Fan speed actual value : in rpm/10
d.40 = Flow temp : Actual value in °C
d.41 = Return temp : Actual value in °C
d.44 = Ionisation current : Actual value (10nA)
d.60 = Number of safety limiter cut offs : Quantity
d.61 = Number of lockouts : number of unsuccessful attempts in the last attempt
d.64 = Average ignition time : in seconds
d.65 = Max ignition time : in seconds
d.67 = Remaining burner anti cycling time : in minutes
d.68 = Unsuccessful ignition attempts in first attempt : quantity
d.69 = Unsuccessful ignition attempts in second attempt : quantity
d.76 = Appliance variant ( device specific number) : 00 to 99
d.80 = Heating operating hours : in hours
d.82 = Cycles in heating mode : quantity ( hundreds)
d.90 = Digital regulator status : 1 = identified, 0 = unidentified (eBUS address < = 10)
d.91 = Internal programmer (for use with options board kit) : 0:24 hour (default), 1:7 day
d.97 = Activation of second diagnostic level : password needed
d.99 = State list : S.00 to S.08