55xGenComm1_29
38
GenComm Page 4 - Basic Instrumentation
NOTE:-
Reading GenComm instrumentation registers usually returns the
instrumentation data you request. However, sometimes other values are returned instead.
These are called Sentinel values and are detailed in the document “GenComm standard
for use with generating set control equipment”. For instance, if the Oil Pressure sender is
detected as being open circuit by the module, then reading from GenComm address
0x0400 (Page4, register offset 0) will return the sentinel value 0xFFFC, meaning
“Transducer fault”. These sentinel values should be fully supported by the “Master”
software.
Registers
These are all read only registers.
Register
offset
Name
Min value
Max value
Scale
factor
Units Bits/
sign
0 Oil
pressure
0 10000
1 KPa
16
1
Coolant temperature
-50
150
1
DegC
16 S
2 Reserved
3 Fuel
level
0 130 1 % 16
4 Charge
alternator
voltage
0 40 0.1
V
16
5 Battery
voltage 0 40 0.1
V 16
6 Engine
speed
0 6000
1 RPM
16
7 Generator
frequency
0 70 0.1
Hz
16
8-9
Generator L1-N voltage
0
18,000
0.1
V
32
10-11
Generator L2-N voltage
0
18,000
0.1
V
32
12-13
Generator L3-N voltage
0
18,000
0.1
V
32
14-15 Generator
L1-L2
voltage
0 30,000
0.1
V
32
16-17 Generator
L2-L3
voltage
0 30,000
0.1
V
32
18-19 Generator
L3-L1
voltage
0 30,000
0.1
V
32
20-21
Generator L1 current
0
99,999.9
0.1
A
32
22-23
Generator L2 current
0
99,999.9
0.1
A
32
24-25
Generator L3 current
0
99,999.9
0.1
A
32
26-27
Generator earth current
0
99,999.9
0.1
A
32
28-29
Generator L1 watts
-
9,999,999
99,999,99
9
1 W 32
S
30-31
Generator L2 watts
-
9,999,999
99,999,99
9
1 W 32
S
32-33
Generator L3 watts
-
9,999,999
99,999,99
9
1 W 32
S
34 Generator
current
lag/lead
-180 +180 1 Degrees
16
S
