Can communication, Introduction, Can parameters – Basler Electric DECS-250N User Manual
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9440500990 Rev D
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DECS-250N
CAN Communication
CAN Communication
Introduction
CAN Bus interface 1 facilitates communication between the DECS-250N and optional modules such as
the contact expansion module (CEM-2020) and analog expansion module (AEM-2020). Refer to the
chapters Contact Expansion Module and Analog Expansion Module for more information.
CAN Bus interface 2 enables the DECS-250N to provide generator and system parameters to a generator
controller such as the Basler DGC-2020. CAN 2 also permits DECS-250N setpoint and mode control from
an external device connected to the CAN. The parameters sent over CAN 2 are listed in this chapter.
Both CAN Bus interfaces utilize the SAE J1939 messaging protocol.
Refer to the Communication chapter for CAN port configuration and the Terminals and Connectors
chapter for wiring.
CAN Parameters
Supported CAN parameters are listed in Table 17. The first column contains the parameter group number
(PGN), the second column contains the parameter name, the third column contains the unit of
measurement for a parameter, the fourth column contains the suspect parameter number (SPN), and the
fifth column contains the broadcast rate for a parameter.
Table 17. CAN Parameters
PGN
Name
Units
SPN
Broadcast
Rate
0xFDA6
Generator Excitation Field Voltage
Volts
3380
100 ms
Generator Excitation Field Current
Amps
3381
Generator Output Voltage Bias Percentage
Percent
3382
0xFDA7
Voltage Regulator Load Compensation Mode
n/a
3375
1 s
Voltage Regulator var/PF Operating Mode
n/a
3376
Voltage Regulator Underfrequency Compensation Enabled
n/a
3377
Voltage Regulator Soft Start State
n/a
3378
Voltage Regulator Enabled
n/a
3379
0xFDFD
Generator Phase CA L-L AC RMS Voltage
Volts
2443
100 ms
(Unsupported)
n/a
2247
Generator Phase C AC RMS Current
Amps
2451
0xFE00
Generator Phase BC L-L AC RMS Voltage
Volts
2442
100 ms
(Unsupported)
n/a
2446
Generator Phase B AC RMS Current
Amps
2450
0xFE03
Generator Phase AB L-L AC RMS Voltage
Volts
2441
100 ms
(Unsupported)
n/a
2445
Generator Phase A AC RMS Current
Amps
2249
0xFE06
Generator Average L-L AC RMS Voltage
Volts
2440
100 ms
(Unsupported)
n/a
2444
Generator Average AC Frequency
Hertz
2436
Generator Average AC RMS Current
Amps
2448
0xFE04
Generator Total Reactive Power
var
2456
100 ms
Generator Overall PF
n/a
2464
Generator Overall PF Lagging
n/a
2518