Maretron DCM100 Manuel D’Utilisation

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DCM100 User’s Manual  
 
 
 
 
Page A2 
Appendix A – NMEA 2000 Interfacing 
Revision 1.0 
PGN 127508 – Battery Configuration Status 
The DCM100 uses this PGN to transmit unchanging battery configuration data. 
 
 Field 1: Battery Instance – This field indicates the particular battery for which this data 
applies. A single battery will have an instance of 0. Batteries in boats with multiple 
batteries will be numbered uniquely, starting at 0. 
 
2:  Battery Type – This field indicates the type of battery. The DCM100 indicates one of 
the following values: 0=Flooded, 1=Gel, 2=AGM. 
 3: 
Supports 
Equalization 
– 
This field indicates whether the battery supports an 
equalization charge. The DCM will always transmit a value of 0 for this field. 
 
4:  Reserved – This field is reserved by NMEA; therefore, the DCM100 sets all bits to a 
logic 1. 
 
5: Nominal Voltage – This field indicates the nominal voltage of the battery. The 
DCM100 indicates one of the following values: 0=6 Volts, 1=12 Volts, 2=24 Volts, 
3=32 Volts, 4=36 Volts, 5=42 Volts, 6=48 Volts. 
 
6:  Battery Chemistry – This field indicates the chemistry of the battery. The DCM100 
indicates one of the following values: 0=Lead Acid, 1=LiIon, 2=NiCad, 3=ZnO, 
3=NiMH. 
 
7:  Battery Capacity – This field indicates the capacity of the battery in units of 1 amp-
hour. 
 
8:  Battery Temperature Coefficient – This field indicates the increase of battery capacity 
with increasing temperature in units of 1%/°C. 
 
9:  Peukert Exponent – This field indicates the Peukert exponent of the battery with a 
resolution of 0.002 (unitless). 
 
10:  Charge Efficiency Factor – This field indicates the charge efficiency factor of the 
battery in units of 1%.