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Marathon Electric (a division of RBC Manufacturing Corp.) reserves the right to change specications and this manual without notice.
Revised 06/2011
FIELD CURRENT AND ENGINE SPEED - This message to reports average DC field current, average DC field volt-
age, engine speed and regulator temperature.
Message ID: (0xFF2A) Field Current and Engine Speed
Source: DVR
®
2000E+
Message Group: Control
PDU Format: 255 (PDU2)
PDU Specific: 42
BYTE 0 BYTE 1 BYTE 2 BYTE 3 BYTE 4 BYTE 5 BYTE 6 BYTE 7
Field
Current
(LSB)
Field
Current
(MSB)
Engine
Speed
(LSB)
Engine
Speed
(MSB)
Field
Voltage
(LSB)
Field
Voltage
(MSB)
Regulator
Temp
(LSB)
Regulator
Temp
(MSB)
0x?? 0x?? 0x?? 0x?? 0x?? 0x?? 0x?? 0x??
Byte 0 Field Current (LSB) – this is the Least Significant Byte of the regulator field current.
(1 bit = 0.001 Adc)
Byte 1 Field Current (MSB) – this is the Most Significant Byte of the regulator field current.
(1 bit = 0.001 Adc)
Byte 2 Engine Speed (LSB) – this is the Least Significant Byte of the generator engine
speed. (1 bit = 1 rpm)
Byte 3 Engine Speed (MSB) – this is the Most Significant Byte of the generator engine
speed. (1 bit = 1 rpm)
Byte 4 Field Voltage (LSB) – this is the Least Significant Byte of the regulator field voltage.
(1 bit = 0.1 Vdc)
Byte 5 Field Voltage (MSB) – this is the Most Significant of the regulator field voltage. (1 bit
= 0.1 Vdc)
Byte 6 Regulator Temperature (LSB) – this is the Least Significant Byte of the regulator tem-
perature in degrees C. (1 bit = 1 deg C, signed)
Byte 7 Regulator Temperature (MSB) – this is the Most Significant Byte of the regulator tem-
perature in degrees C. (1 bit = 1 deg C, signed)