Woodward GECO, Technical Manual, Page: 86 / 90

GECO

Stoichiometric Manual 03554
78 Woodward
Appendix.
Modbus Register Addresses
Integer Input/Output Parameters
Intege
r
Ad
d
ress
Parameter
Name Parameter
Description
In
tern
al
B
y
tes Internal
Units
Multiply
By Then
Add To
Obtain
1 RPM Engine speed 2 [16.0] rpm 1 0 rpm
2 MAP Intake manifold pressure - bank 1 2 [8.8] psia 0.00390625 0 psia
5 DP Catalyst Differential Pressure [8.8] inH2Od 0.00390625 0 inH2Od
12 CJC Cold junction (control) temperature 2 [13.3] deg F 0.125 0 deg F
16 EGO1
Engine-out stoichiometric oxygen sensor
- bank 1
1 [0.8] 1.2V 0.004684096 0 volts
17 EGO2
Engine-out stoichiometric oxygen sensor
- bank 2
1 [0.8] 1.2V 0.004684096 0 volts
18 EGO3
Catalyst-out stoichiometric oxygen sensor
- bank 1
1 [0.8] 1.2V 0.004684096 0 volts
20 EGO1_TARG EGO1 desired voltage 1 [0.8] 1.2V 0.004684096 0 volts
21 EGO2_TARG EGO2 desired voltage 1 [0.8] 1.2V 0.004684096 0 volts
22 EGO3_TARG EGO3 desired voltage 1 [0.8] 1.2V 0.004684096 0 volts
24 EGO1_BASE EGO1 base desired voltage 1 [0.8] 1.2V 0.004684096 0 volts
25 EGO2_BASE EGO2 base desired voltage 1 [0.8] 1.2V 0.004684096 0 volts
26 EGO1_HEALTH EGO1 health 1 [0.8] fraction 0.390625 0 %
27 EGO2_HEALTH EGO2 health 1 [0.8] fraction 0.390625 0 %
28 EGO3_HEALTH EGO3 health 1 [0.8] fraction 0.390625 0 %
30 CL1 Closed loop control value - bank 1 2 [S0.15] 0.003051758 0 %
31 CL2 Closed loop control value - bank 2 2 [S0.15] 0.003051758 0 %
32 ADAPT1 Adaptive control value - bank 1 2 [S0.15] 0.003051758 0 %
33 ADAPT2 Adaptive control value - bank 2 2 [S0.15] 0.003051758 0 %
34 VALVE1 Fuel valve command - bank 1 2 [S0.15] 0.003051758 0 %
35 VALVE2 Fuel valve command - bank 2 2 [S0.15] 0.003051758 0 %
39 VOLTAGE Control supply voltage 1 [0.8] 32.45V 0.127274156 0 volts
42 GENERATOR_EST Estimated generator output power 2 [16.0] bhp 0.7457 0 KW
43 POWER_EST Estimated engine power 2 [16.0] bhp 1 0 bhp
44 TORQUE_EST Estimated engine torque 2 [16.0] ft-lbs 1 0 ft-lbs
45 TC1 Thermocouple 1 temperature 2 [13.3] deg F 0.125 0 deg F
46 TC2 Thermocouple 2 temperature 2 [13.3] deg F 0.125 0 deg F
49 VALVE1_CUR Valve driver 1 current 1 [0.8] 6.18A 0.024327349 0 amps
50 VALVE2_CUR Valve driver 2 current 1 [0.8] 6.18A 0.024327349 0 amps
55 RUN_MODE 0=stopped, 1=cranking, 2=running 1 integer 1 0 0,1,2