Deep Sea DSE7310/7320 genset controller

Register map(s) for this device, with a note of how far each has been checked. Addresses are 0-based, as on the wire. Scale and byte order are confirmed only at the hardware-verified rung.

coherence-checked

Round-trips through a real Modbus stack with no overlapping addresses and a word-order-sensitive codec — the map is internally coherent and wire-decodable. Does NOT prove byte-order or scaling match a real device: the emulator is seeded from the map's own types, so a uniformly wrong byte-order still round-trips. Only hardware-verified confirms byte-order/scale on the wire.

point	address (0-based)	type	scale	unit
Extended exception code	0	U16	1
Extended exception address	1	U16	1
Telemetry alarm flag for satellite 1-16	2	U16	1
Telemetry alarm flag2 for satellites 17-32	3	U16	1
Communication error flag for satellite 1-16	4	U16	1
Communication error flags for satellites 17-32	5	U16	1
Password status	6	U16	1
Number of satellite sockets available	7	U16	1
Number of languages available for telemetry	8	U16	1
GenComm version number	9	U16	1
Baud rates available	10	U32BE	1
USB connection status	15	U16	1
RS232 port received rate counter	16	U16	1
RS232 port lost rate counter	17	U16	1
RS232 port quality instrument	18	U16	1	%
RS485 port 1 received rate counter	19	U16	1
RS485 port 1 lost rate counter	20	U16	1
RS485 port 1 quality instrument	21	U16	1	%
DSENet quality instrument	27	U16	1	%
MSC Connection 1 quaily instrument	30	U16	1	%
MSC Connection 2 quaily instrument	33	U16	1	%
Current slave address	256	U16	1
Site identity code	257	U16	1
Device identity code	258	U16	1
Baud rate	259	U16	1
Current language code	260	U16	1
Satellite socket 1-16 enable flag	262	U16	1
Satellite socket 17-32 enable flags	263	U16	1
Master inactivity time-out	264	U16	0.1	Seconds
Password time-out	265	U16	0.1	Seconds
Current password	288	U16	1
Compliment of current password	289	U16	1
Set new read only password	290	U16	1
Compliment of new read only password	291	U16	1
Set new control password	292	U16	1
Compliment of new control password	293	U16	1
Set new configure password	294	U16	1
Compliment of new configure password	295	U16	1
Display unit type connected to module	296	U16	1
Manufacturer code	768	U16	1
Model number	769	U16	1
Serial number	770	U32BE	1
Control mode	772	U16	1
Control mode selection	773	U16	1
Control unit not configured / failure / alarms	774	U16	1
S.M. 1-8 status	775	U16	1
String checksum	776	U32BE	1
S.M. 1 timer	778	U16	1	Seconds
S.M. 2 timer	779	U16	1	Seconds
S.M. 3 timer	780	U16	1	Seconds
S.M. 4 timer	781	U16	1	Seconds
S.M. 5 timer	782	U16	1	Seconds
S.M. 6 timer	783	U16	1	Seconds
S.M. 7 timer	784	U16	1	Seconds
S.M. 8 timer	785	U16	1	Seconds
S.M. 1 state	786	U16	1
S.M. 2 state	787	U16	1
S.M. 3 state	788	U16	1
S.M. 4 state	789	U16	1
S.M. 5 state	790	U16	1
S.M. 6 state	791	U16	1
S.M. 7 state	792	U16	1
S.M. 8 state	793	U16	1
Change in event log contents	794	U16	1
Battery Charger Mode	795	U16	1
Battery Charger De-Rating Mode	796	U16	1
Battery Charger Active Cell Count	797	U16	1	Cells
Battery Chemistry ID	798	U16	1
Charging Stages	799	U16	1
Heater fitted	800	U16	1
Controller mode (8661)	801	U16	1
Battery Charger Mode (Auxiliary)	802	U16	1
Active Cell Count (Auxiliary)	803	U16	1	Cells
Battery Chemistry ID (Auxiliary)	804	U16	1
Charging Stages (Auxiliary)	805	U16	1
External Panel Lock Active / etc	806	U16	1
Oil pressure	1024	U16	1	Kpa
Coolant temperature	1025	I16	1	Degrees C
Oil temperature	1026	I16	1	Degrees C
Fuel level	1027	U16	1	%
Charge alternator voltage	1028	U16	0.1	V
Engine Battery voltage	1029	U16	0.1	V
Engine speed	1030	U16	1	RPM
Generator frequency	1031	U16	0.1	Hz
Generator L1-N voltage	1032	U32BE	0.1	V
Generator L2-N voltage	1034	U32BE	0.1	V
Generator L3-N voltage	1036	U32BE	0.1	V
Generator L1-L2 voltage	1038	U32BE	0.1	V
Generator L2-L3 voltage	1040	U32BE	0.1	V
Generator L3-L1 voltage	1042	U32BE	0.1	V
Generator L1 current	1044	U32BE	0.1	A
Generator L2 current	1046	U32BE	0.1	A
Generator L3 current	1048	U32BE	0.1	A
Generator earth current	1050	U32BE	0.1	A
Generator L1 watts	1052	I32BE	1	W
Generator L2 watts	1054	I32BE	1	W
Generator L3 watts	1056	I32BE	1	W
Generator current lag/lead	1058	I16	1	degrees
Mains frequency	1059	U16	0.1	Hz
Mains L1-N voltage	1060	U32BE	0.1	V
Mains L2-N voltage	1062	U32BE	0.1	V
Mains L3-N voltage	1064	U32BE	0.1	V
Mains L1-L2 voltage	1066	U32BE	0.1	V
Mains L2-L3 voltage	1068	U32BE	0.1	V
Mains L3-L1 voltage	1070	U32BE	0.1	V
Mains voltage phase lag/lead	1072	I16	1	degrees
Generator phase rotation	1073	U16	1
Mains phase rotation	1074	U16	1
Mains current lag/lead	1075	I16	1	degrees
Mains L1 current	1076	U32BE	0.1	A
Mains L2 current	1078	U32BE	0.1	A
Mains L3 current	1080	U32BE	0.1	A
Mains earth current	1082	U32BE	0.1	A
Mains L1 watts	1084	I32BE	1	W
Mains L2 watts	1086	I32BE	1	W
Mains L3 watts	1088	I32BE	1	W
Bus current lag/lead	1090	I16	1	degrees
Bus frequency	1091	U16	0.1	Hz
Bus L1-N voltage	1092	U32BE	0.1	V
Bus L2-N voltage	1094	U32BE	0.1	V
Bus L3-N voltage	1096	U32BE	0.1	V
Bus L1-L2 voltage	1098	U32BE	0.1	V
Bus L2-L3 voltage	1100	U32BE	0.1	V
Bus L3-L1 voltage	1102	U32BE	0.1	V
Bus L1 current	1104	U32BE	0.1	A
Bus L2 current	1106	U32BE	0.1	A
Bus L3 current	1108	U32BE	0.1	A
Bus earth current	1110	U32BE	0.1	A
Bus L1 watts	1112	I32BE	1	W
Bus L2 watts	1114	I32BE	1	W
Bus L3 watts	1116	I32BE	1	W
Bus phase rotation	1118	U16	1
Bus 2 frequency	1119	U16	0.1	Hz
Bus 2 L1-N voltage	1120	U32BE	0.1	V
Bus 2 L2-N voltage	1122	U32BE	0.1	V
Bus 2 L3-N voltage	1124	U32BE	0.1	V
Bus 2 L1-L2 voltage	1126	U32BE	0.1	V
Bus 2 L2-L3 voltage	1128	U32BE	0.1	V
Bus 2 L3-L1 voltage	1130	U32BE	0.1	V
Bus 2 L1 current	1132	U32BE	0.1	A
Bus 2 L2 current	1134	U32BE	0.1	A
Bus 2 L3 current	1136	U32BE	0.1	A
Bus 2 earth current	1138	U32BE	0.1	A
Bus 2 L1 watts	1140	I32BE	1	W
Bus 2 L2 watts	1142	I32BE	1	W
Bus 2 L3 watts	1144	I32BE	1	W
Bus 2 phase rotation	1146	U16	1
Bus 2 current lag/lead	1147	I16	1	degrees
S1 frequency	1148	U16	0.1	Hz
S1 L1-N voltage	1149	U32BE	0.1	V
S1 L2-N voltage	1151	U32BE	0.1	V
S1 L3-N voltage	1153	U32BE	0.1	V
S1 L1-L2 voltage	1155	U32BE	0.1	V
S1 L2-L3 voltage	1157	U32BE	0.1	V
S1 L3-L1 voltage	1159	U32BE	0.1	V
S1 L1 current	1161	U32BE	0.1	A
S1 L2 current	1163	U32BE	0.1	A
S1 L3 current	1165	U32BE	0.1	A
S1 earth current	1167	U32BE	0.1	A
S1 L1 watts	1169	I32BE	1	W
S1 L2 watts	1171	I32BE	1	W
S1 L3 watts	1173	I32BE	1	W
S1 current lag/lead	1175	I16	1	degrees
S2 frequency	1176	U16	0.1	Hz
S2 L1-N voltage	1177	U32BE	0.1	V
S2 L2-N voltage	1179	U32BE	0.1	V
S2 L3-N voltage	1181	U32BE	0.1	V
S2 L1-L2 voltage	1183	U32BE	0.1	V
S2 L2-L3 voltage	1185	U32BE	0.1	V
S2 L3-L1 voltage	1187	U32BE	0.1	V
S2 L1 current	1189	U32BE	0.1	A
S2 L2 current	1191	U32BE	0.1	A
S2 L3 current	1193	U32BE	0.1	A
S2 earth current	1195	U32BE	0.1	A
S2 L1 watts	1197	I32BE	1	W
S2 L2 watts	1199	I32BE	1	W
S2 L3 watts	1201	I32BE	1	W
S2 current lag/lead	1203	I16	1	degrees
Load L1 current	1204	U32BE	0.1	A
Load L2 current	1206	U32BE	0.1	A
Load L3 current	1208	U32BE	0.1	A
Load L1 watts	1210	I32BE	1	W
Load L2 watts	1212	I32BE	1	W
Load L3 watts	1214	I32BE	1	W
Load current lag/lead	1216	I16	1	degrees
S1 phase rotation	1217	U16	1
S2 phase rotation	1218	U16	1
Governor output	1219	I16	0.1	%
AVR output	1220	I16	0.1	%
DC Plant Battery Charge State	1221	U16	0.1	%
DC Plant Battery Discharge State	1222	U16	0.1	%
DC Voltage	1223	U16	0.1	V
DC Shunt 1 Current	1224	I32BE	0.1	A
DC Shunt 2 Current	1226	I32BE	0.1	A
DC Load Current	1228	I32BE	0.1	A
DC Plant Battery Current	1230	I32BE	0.1	A
DC Total Current	1232	I32BE	0.1	A
DC Plant Battery Cycles	1234	U32BE	1
DC Charger Watts	1236	I32BE	1	W
DC Plant Battery Watts	1238	I32BE	1	W
DC Load Watts	1240	I32BE	1	W
DC Total Watts	1242	I32BE	1	W
DC Charge Mode	1244	U16	1
DC Plant Battery temperature	1245	I16	1	Degrees C
DC Battery Cycle State	1246	U16	1
Mains zero sequence voltage angle	1247	I16	0.1	Degrees
Mains positive sequence voltage angle	1248	I16	0.1	Degrees
Mains negative sequence voltage angle	1249	I16	0.1	Degrees
Mains zero sequence voltage magnitude	1250	U32BE	0.1	V
Mains positive sequence voltage magnitude	1252	U32BE	0.1	V
Mains negative sequence voltage magnitude	1254	U32BE	0.1	V
Battery Charger Output Current	1256	I32BE	1	mA
Battery Charger Output Voltage	1258	I32BE	1	mV
Battery Open Circuit Voltage	1260	I32BE	1	mV
Load L1-N voltage (8661)	1262	U32BE	0.1	V
Load L2-N voltage (8661)	1264	U32BE	0.1	V
Load L3-N voltage (8661)	1266	U32BE	0.1	V
Load L1-L2 voltage (8661)	1268	U32BE	0.1	V
Load L2-L3 voltage (8661)	1270	U32BE	0.1	V
Load L3-L1 voltage (8661)	1272	U32BE	0.1	V
Load frequency	1274	U16	0.1	Hz
Load phase rotation	1275	U16	1
Battery Charger Auxiliary Voltage	1276	I32BE	1	mV
Battery Charger Auxiliary Current	1278	I32BE	1	mV
Coolant pressure 1	1280	U16	1	Kpa
Coolant pressure 2	1281	U16	1	Kpa
Fuel pressure 1	1282	U16	1	Kpa
Fuel pressure 2	1283	U16	1	Kpa
Turbo pressure 1	1284	U16	1	Kpa
Turbo pressure 2	1285	U16	1	Kpa
Inlet manifold temperature 1	1286	I16	1	Degrees C
Inlet manifold temperature 2	1287	I16	1	Degrees C
Exhaust temperature 1	1288	I16	1	Degrees C
Exhaust temperature 2	1289	I16	1	Degrees C
Fuel consumption	1290	U32BE	0.01	L/hour
Water in Fuel	1292	U16	1
CAN BIT data	1293	U16	1
Atmospheric pressure	1294	U16	1	Kpa
Fuel temperature	1295	I16	1	Degrees C
Fuel level (Units) <8xxx phase 2>	1296	U32BE	1	Litre/Imp Gal/US
Selected units for fuel level <8xxx phase 2>	1298	U16	1
Auxiliary sender 1 category	1328	U16	1
Auxiliary sender 1 value	1329	I16	1
Auxiliary sender 2 category	1330	U16	1
Auxiliary sender 2 value	1331	I16	1
Auxiliary sender 3 category	1332	U16	1
Auxiliary sender 3 value	1333	I16	1
Auxiliary sender 4 category	1334	U16	1
Auxiliary sender 4 value	1335	I16	1
Exhaust after treatment fuel used	1344	U32BE	1	Litres
After treatment temperature T1	1346	I16	1	Degrees C
After treatment temperature T3	1347	I16	1	Degrees C
Engine reference torque	1348	U32BE	1	Nm
Engine percentage torque	1350	I32BE	1	%
Engine demand torque	1352	I32BE	1	%
Percentage load at speed	1354	U16	1	%
Accelerator position	1355	U16	1	%
Nominal friction percentage torque	1356	I16	1	%
Oil level	1357	U16	1	%
Crank case pressure	1358	I16	0.01	kPa
Coolant level	1359	U16	1	%
Injector Rail 1 pressure	1360	U16	0.01	Mpa
Injector Rail 2 pressure	1361	U16	0.01	Mpa
Engine EGR flow	1362	U16	1	kg/h
Pre filter oil pressure	1363	U16	1	kPa
Instant break power	1364	U32BE	1	kW
Exhaust gas port 1-16 temperature	1366	I16	1	Degrees C
Intercooler temperature	1382	I16	1	Degrees C
Turbo oil temperature	1383	I16	1	Degrees C
ECU temperature	1384	I16	1	Degrees C
Fan speed	1385	U16	1	rpm
Total engine revolutions	1386	U32BE	0.001
Air inlet pressure	1388	U16	1	kPa
Air filter differential pressure	1389	U16	0.1	kPa
Air trap inlet pressure	1390	U16	1	kPa
Turbo pressure 3	1391	U16	1	kPa
Turbo pressure 4	1392	U16	1	kPa
Inlet manifold temperature 3	1393	I16	1	Degrees C
Inlet manifold temperature 4	1394	I16	1	Degrees C
Inlet manifold temperature 5	1395	I16	1	Degrees C
Inlet manifold temperature 6	1396	I16	1	Degrees C
Trip fuel	1397	U32BE	1	Litres
Electrical potential	1399	U16	0.1	V
PGI Engine type	1400	U16	1
PGI Engine version number	1401	U16	1
DPTC filter lamp command	1402	U16	1
Exhaust system high temperature lamp	1403	U16	1
DPTC Action regeneration forced	1404	U16	1
Shutdown wait to start	1405	U16	1
Shutdown protection	1406	U16	1
Shutdown Approaching	1407	U16	1
Engine operating state	1408	U16	1
Shutdown coolant override	1409	U16	1
Battle short override	1410	U16	1
Module engine hours	1411	U16	1
Module oil pressure	1412	U16	1
Module coolant temperature	1413	U16	1
Module engine RPM	1414	U16	1
Module charge alternator	1415	U16	1
Module speed feed	1416	U16	1
Frequency adjust	1417	U16	1
Engine operating state	1418	U16	1
Engine alarm warning	1419	U16	1
Engine alarm shutdown	1420	U16	1
Engine alarm electrical trip	1421	U16	1
CAN amber stop lamp	1422	U16	1
CAN amber lamp flash	1423	U16	1
CAN Red stop lamp	1424	U16	1
CAN red lamp flash	1425	U16	1
CAN protect lamp	1426	U16	1
CAN protect lamp flash	1427	U16	1
Malfunction Lamp	1428	U16	1
Malfunction lamp flash	1429	U16	1
Electrical potential	1430	U16	1
Battery potential	1431	U16	0.1	V
Charging potential	1432	U16	0.1	V
Charge alternator current	1433	U16	1	A
Battery current	1434	I16	1	A
Engine torque mode	1435	U16	1
Engine starter mode	1436	U16	1
CAN CI status	1437	U16	1
Demand speed	1438	U16	1
Speed up	1439	U16	1
Speed down	1440	U16	1
Speed fail	1441	U16	1
Current SD source	1442	U16	1
Feedback SD CAN	1443	U16	1
Feedback SD analogue	1444	U16	1
Failure codes	1445	U16	1
Actual droop	1446	U16	1
Start status	1447	U16	1
Protection override status	1448	U16	1
MTU running state	1449	U16	1
Cylinder cut off	1450	U16	1
Load gen status	1451	U16	1
Extended stop status	1452	U16	1
Current operating mode	1453	U16	1
MTU required torque	1454	U16	1
Trip average fuel	1455	U16	0.01	L/hour
ECU rated power	1456	U16	1	kW
ECU rated speed	1457	U16	1	RPM
ECU idle speed	1458	U16	1	RPM
ECU desired speed	1459	U16	1	RPM
ECU preheat status	1460	U16	1
Manifold pressure	1461	U16	1	kPa
Intercooler level	1462	U16	1	%
CAN link status	1463	U16	1
Auto DPF Regeneration Inhibit	1464	U16	1
DPTC Active Regeneration Inhibit Switch	1465	U16	1
Soot Load	1466	U16	1	%
Ash Load	1467	U16	1	%
LCD Temperature	1470	I16	1	Degrees C
DEF Tank Level	1471	U16	1	%
DEF Tank Temperature	1472	I16	1	Degrees C
DEF Level Status	1473	U16	1
DEF Consumption	1474	U16	1	L/hour
Aftertreatment Status Reason	1475	U16	1
Aftertreatment Status Severity	1476	U16	1
Time left until action needed	1477	U16	1	s
Time until Torque Reduction	1478	U16	1	s
Time until Speed Reduction	1479	U16	1	s
EGR Pressure	1480	U16	1	kPa
EGR Temperature	1481	I16	1	Degrees C
Ambient Air Temperature	1482	I16	1	Degrees C
Air Intake Temperature	1483	I16	1	Degrees C
DEF Lamps – SCR Inducement	1484	U16	1
DEF Lamps – DEF Level Low	1485	U16	1
Generator high-resolution frequency	1486	U16	0.01	Hz
Mains high-resolution frequency	1487	U16	0.01	Hz
Bus high-resolution frequency	1488	U16	0.01	Hz
Bus 2 high-resolution frequency	1489	U16	0.01	Hz
Oil Pressure	1490	I16	1	kPa
CAN Alternate engine speed selected	1491	U16	1
Generator Excitation Field Current	1492	U32BE	1	A
Generator Excitation Field Voltage	1494	U32BE	1	V
Generator Output Voltage Bias Percentage	1496	U16	1	%
Exhaust gas port 17-20 temperature	1497	I16	1	Degrees C
Instant Fuel Rate	1501	U16	1
DPTC Filter Status	1502	U16	1
DPTC Active Regeneration Inhibit	1503	U16	1
DPTC Active Regeneration Inhibit ET	1504	U16	1
DEF Tank Status	1505	U16	1
Gas Fuel Pressure	1506	U16	1
Throttle Position 1	1507	U16	1
Throttle Position 2	1508	U16	1
DC Charger Current	1509	I32BE	0.1	A
Trip Average Fuel Efficiency	1511	U16	0.01	kW Hour/L
Instantaneous Fuel Efficiency	1512	U16	0.01	kW Hour/L
Fuel Distance (in mm)	1513	I16	1	mm
Generator total watts	1536	I32BE	1	W
Generator L1 VA	1538	U32BE	1	VA
Generator L2 VA	1540	U32BE	1	VA
Generator L3 VA	1542	U32BE	1	VA
Generator total VA	1544	I32BE	1	VA
Generator L1 Var	1546	I32BE	1	Var
Generator L2 Var	1548	I32BE	1	Var
Generator L3 Var	1550	I32BE	1	Var
Generator total Var	1552	I32BE	1	Var
Generator power factor L1	1554	I16	0.01
Generator power factor L2	1555	I16	0.01
Generator power factor L3	1556	I16	0.01
Generator average power factor	1557	I16	0.01
Generator percentage of full power	1558	I16	0.1	%
Generator percentage of full Var	1559	I16	0.1	%
Mains total watts	1560	I32BE	1	W
Mains L1 VA	1562	U32BE	1	VA
Mains L2 VA	1564	U32BE	1	VA
Mains L3 VA	1566	U32BE	1	VA
Mains total VA	1568	U32BE	1	VA
Mains L1 Var	1570	I32BE	1	Var
Mains L2 Var	1572	I32BE	1	Var
Mains L3 Var	1574	I32BE	1	Var
Mains total Var	1576	I32BE	1	Var
Mains power factor L1	1578	I16	0.01
Mains power factor L2	1579	I16	0.01
Mains power factor L3	1580	I16	0.01
Mains average power factor	1581	I16	0.01
Gen L1 lead /lag	1614	U16	1
Gen L2 lead /lag	1615	U16	1
Gen L3 lead /lag	1616	U16	1
Gen total lead /lag	1617	U16	1
Gen L1 percentage of full power	1618	I16	0.1	%
Gen L2 percentage of full power	1619	I16	0.1	%
Gen L3 percentage of full power	1620	I16	0.1	%
Generator L-N voltage average	1650	U32BE	0.1	V
Generator L-N voltage difference	1652	U32BE	0.1	V
Generator L-N voltage min	1654	U32BE	0.1	V
Generator L-N voltage max	1656	U32BE	0.1	V
Generator L-L voltage average	1658	U32BE	0.1	V
Generator L-L voltage difference	1660	U32BE	0.1	V
Generator L-L voltage min	1662	U32BE	0.1	V
Generator L-L voltage max	1664	U32BE	0.1	V
Generator current average	1666	U32BE	0.1	A
Generator current difference	1668	U32BE	0.1	A
Generator current min	1670	U32BE	0.1	A
Generator current max	1672	U32BE	0.1	A
Generator watts average	1674	I16	0.1	%
Generator watts difference	1675	I16	0.1	%
Generator watts min	1676	I16	0.1	%
Generator watts max	1677	I16	0.1	%
Generator VA average	1678	U16	0.1	%
Generator VA difference	1679	U16	0.1	%
Generator VA min	1680	U16	0.1	%
Generator VA max	1681	U16	0.1	%
Generator Var average	1682	I16	0.1	%
Generator Var difference	1683	I16	0.1	%
Generator Var min	1684	I16	0.1	%
Generator Var max	1685	I16	0.1	%
Generator power factor average	1686	I16	0.01
Generator power factor difference	1687	I16	0.01
Generator power factor min	1688	I16	0.01
Generator power factor max	1689	I16	0.01
Mains L-N voltage average	1690	U32BE	0.1	V
Mains L-N voltage difference	1692	U32BE	0.1	V
Mains L-N voltage min	1694	U32BE	0.1	V
Mains L-N voltage max	1696	U32BE	0.1	V
Mains L-L voltage average	1698	U32BE	0.1	V
Mains L-L voltage difference	1700	U32BE	0.1	V
Mains L-L voltage min	1702	U32BE	0.1	V
Mains L-L voltage max	1704	U32BE	0.1	V
Mains current average	1706	U32BE	0.1	A
Current time since 1/1/70	1792	U32BE	1	Seconds
Time to next engine maintenance	1794	I32BE	1	Seconds
Time of next engine maintenance since 1/1/70	1796	U32BE	1	Seconds
Engine run time	1798	U32BE	1	Seconds
Generator positive KW hours	1800	U32BE	0.1	KW hour
Generator negative KW hours	1802	U32BE	0.1	KW hour
Generator KVA hours	1804	U32BE	0.1	KVA hour
Generator KVAr hours	1806	U32BE	0.1	KVAr hour
Number of starts	1808	U32BE	1
Mains positive KW hours	1810	U32BE	0.1	KW hour
Mains negative KW hours	1812	U32BE	0.1	KW hour
Mains KVA hours	1814	U32BE	0.1	KVA hour
Mains KVAr hours	1816	U32BE	0.1	KVAr hour
Bus positive KW hours	1818	U32BE	0.1	KW hour
Bus negative KW hours	1820	U32BE	0.1	KW hour
Bus KVA hours	1822	U32BE	0.1	KVA hour
Bus KVAr hours	1824	U32BE	0.1	KVAr hour
Fuel used	1826	U32BE	1	Litre
Maximum positive mains R.O.C.O.F.	1828	U32BE	0.01	Hz/s
Maximum negative mains R.O.C.O.F.	1830	U32BE	0.01	Hz/s
Maximum positive mains vector shift	1832	U32BE	0.1	Degrees
Maximum negative mains vector shift	1834	U32BE	0.1	Degrees
Time to next engine maintenance alarm 1	1836	I32BE	1	Seconds
Time of next engine maintenance alarm 1 since 1/1/70	1838	U32BE	1	Seconds
Time to next engine maintenance alarm 2	1840	I32BE	1	Seconds
Time of next engine maintenance alarm 2 since 1/1/70	1842	U32BE	1	Seconds
Time to next engine maintenance alarm 3	1844	I32BE	1	Seconds
Time of next engine maintenance alarm 3 since 1/1/70	1846	U32BE	1	Seconds
Time to next plant battery maintenance	1848	I32BE	1	Seconds
Time of next plant battery maintenance since 1/1/70	1850	U32BE	1	Seconds
Cycles to next plant battery maintenance	1852	U32BE	1	Numeric
Capacity remaining to next plant battery maintenance	1854	U32BE	1	Percentage
Time to next plant battery maintenance alarm 1	1856	I32BE	1	Seconds
Time of next plant battery maintenance alarm 1 since 1/1/70	1858	U32BE	1	Seconds
Cycles to next plant battery maintenance alarm 1	1860	U32BE	1	Numeric
Capacity remaining to next plant battery maintenance alarm 1	1862	U32BE	1	Percentage
Time to next plant battery maintenance alarm 2	1864	I32BE	1	Seconds
Time of next plant battery maintenance alarm 2 since 1/1/70	1866	U32BE	1	Seconds
Cycles to next plant battery maintenance alarm 2	1868	U32BE	1	Numeric
Capacity remaining to next plant battery maintenance alarm 2	1870	U32BE	1	Percentage
Time to next plant battery maintenance alarm 3	1872	I32BE	1	Seconds
Time of next plant battery maintenance alarm 3 since 1/1/70	1874	U32BE	1	Seconds
Cycles to next plant battery maintenance alarm 3	1876	U32BE	1	Numeric
Capacity remaining to next plant battery maintenance alarm 3	1878	U32BE	1	Percentage
Plant Battery Run Time	1880	U32BE	1	Seconds
Plant Battery Cycles	1882	U32BE	1
Plant Battery Charge State	1884	U16	0.1	%
Load kWh	1886	U32BE	0.1	kW hour
Battery charging kWh	1888	U32BE	0.1	kW hour
Battery discharging kWh	1890	U32BE	0.1	kW hour
Fuel Efficiency KWh/L (accumulated)	1892	U16	0.01	kW hour/L
Number of named alarms	2048	U16	1
Emergency stop / Low oil pressure / High coolant temp / High	2049	U16	1
System control function 0 supported	4096	U16	1
System control function 16-31 supported	4097	U16	1
System control function 32-47 supported	4098	U16	1
System control function 48-63 supported	4099	U16	1
System control function 64-79 supported	4100	U16	1
System control function 80-95 supported	4101	U16	1
System control function 96-111supported	4102	U16	1
System control function 112-127 supported	4103	U16	1
System control key	4104	U16	1
Compliment of system control key	4105	U16	1
Generating set run priority	35104	U16	1
Frequency control offset	35105	U16	0.01	Hz
Load level setting (minimum)	35108	I16	1	%
Load level setting (maximum)	35109	I16	1	%
VAr level setting (maximum)	35111	I16	1	%
Bus / Mains load setting	35112	U16	1
Internal governor IF gain	35113	U16	0.001	V
Internal governor IF offset	35114	I16	0.001	V
Internal AVR IF gain	35115	U16	0.001	V
Internal AVR IF offset	35116	I16	0.001	V
Commissioning screens enable flag	35117	U16	1
Relay pulse rate	35121	U16	0.01	Hz
Relay pulse length	35122	U16	0.1	Sec
Gain (proportional gain)	35123	U16	1	%
Compensation (integral gain)	35124	U16	1	%
Cummins CM850 Governor gain	35150	U16	0.1
Relay pulse rate	35153	U16	0.01	Hz
Relay pulse length	35154	U16	0.1	Sec
Gain (proportional gain)	35155	U16	1	%
Compensation (integral gain)	35156	U16	1
Power control mode	35162	U16	1
Current power target	35163	I16	0.1	%
Relay pulse rate	35169	U16	0.01	Hz
Relay pulse length	35170	U16	0.1	Sec
Gain (proportional gain)	35171	U16	1	%
Compensation (integral gain)	35172	U16	1	%
Relay pulse rate	35185	U16	0.01	Hz
Relay pulse length	35186	U16	0.1	Sec
Gain (proportional gain)	35187	U16	1	%
Compensation (integral gain)	35188	U16	1
Power factor setting	35194	I16	0.01
Reactive power control mode	35195	U16	1
Current reactive power target	35196	I16	0.1	%
Current power factor target	35197	I16	0.01	%
Manual frequency trim	35200	I16	0.1	Hz
Minimum frequency trim	35201	I16	0.1	Hz
Maximum frequency trim	35202	I16	0.1	Hz
Nominal voltage	35214	U32BE	1	V
Nominal voltage nudge	35216	I16	1
Nominal frequency	35217	U16	0.1	Hz
Nominal frequency nudge	35218	I16	1
Ramp on rate	35240	U16	0.1	%
Ramp off rate	35241	U16	0.1	%
Reactive power setpoint change ramp rate	35242	U16	0.1	%
Real power setpoint change ramp rate	35243	U16	0.1	%

link settings as documented (unverified): RTU; baud 110/150/300/600/1200/2400/4800/9600/14400/19200/28800/38400/57600/115200; unit ID 10; FC 03,16; The 73xx family is an exception to the RS485 2 stop bits rule as they always use 1 stop bit. RS232 link also uses 1 stop bit.

⚠ Control is performed by sending System Control Keys to register 4104 and its bitwise opposite to register 4105 in the same write operation. — Starkest reads only; we never write a control register.

bench facts as documented (unverified)

termination	Termination resistors must be correctly fitted and cable length must not exceed 1.2km
wiring notes	DSE recommend and supply BELDEN 9841 cable for RS485 use
max registers/read	125
broadcast	supported
sentinel values	0xFFFF for Unimplemented, 0xFFFE for Over measurable range, 0xFFFD for Under measurable range, 0xFFFC for Transducer fault, 0xFFFB for Bad data, 0xFFFA for High digital input, 0xFFF9 for Low digital input
protocol notes	Maximum allowable writing frequency to Modbus registers should be limited to 10 times per second.
firmware register	Page 11, Register 0 (Software version)
doc revision	REV A

⚠ disputed: comms.baud_rates: [110, 150, 300, 600, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, 115200] — disputed by DSE7310/7320 Operator Manuals which state that the actual hardware only supports baud rates from 1200 to 115200 (or up to 19200 on older non-MKII models), even though the GenComm standard defines codes for lower baud rates

⚠ disputed: comms.notes: The 73xx family is an exception to the RS485 2 stop bits rule as they always use 1 stop bit — disputed by DSE73XX MKII Product Change Notification (v5.0, 15.04.19) which added support for configuring 1 or 2 stop bits and parity on the RS485 port

field reports — community-sourced, unverified (checked 2026-06-11)

Writing System Control Keys to register 4104 and its complement to 4105 requires a single Modbus Function Code 16 (Write Multiple Registers) command with a quantity of 2. If a Modbus master/scanner splits this into two separate single-register writes (FC6), the DSE controller will reject the command with Exception Code 02 or ignore it. [source]
Since firmware version 5.0 (released April 15, 2019), the RS485 port on DSE73xx MKII controllers is no longer restricted to 1 stop bit and no parity; it can be configured for 1 or 2 stop bits and Even, Odd, or No parity. [source]
confirmed: comms.default_unit_id: 10 — confirmed by DSE7200/7300 Operators Manual (057-074) which states default Modbus slave address is 10 [1.2.5]
confirmed: comms.framing: ['RTU'] — confirmed by DSE7310/7320 MKII Operator Manual and GenComm standard
confirmed: comms.function_codes: [3, 16] — confirmed by GenComm standard detailing Function 3 (Read Multiple Registers) and Function 16 (Write Multiple Registers)
confirmed: facts.control_warning: Control is performed by sending System Control Keys to register 4104 and its bitwise opposite to register 4105 in the same write operation — confirmed by Gencomm Control Keys document (056-051)
confirmed: facts.doc_revision: REV A — confirmed by GenComm standard document SP-228 REV A
confirmed: facts.identification.firmware_register: Page 11, Register 0 (Software version) — confirmed by GenComm standard Page 11 - Diagnostic - General
confirmed: facts.physical.notes: DSE recommend and supply BELDEN 9841 cable for RS485 use — confirmed by DSE Gencomm Control Keys document
confirmed: facts.physical.termination: Termination resistors must be correctly fitted and cable length must not exceed 1.2km — confirmed by DSE Gencomm Control Keys document

The trust ladder

Each rung states what it proved and what it did not. Gray until proven; green is earned by hardware only.

generated — A prompt produced it. Unproven — anyone can regenerate this.
structure-verified — Decode path is structurally sound (addresses, widths, finite values). Does NOT prove word order or scaling.
coherence-checked — Round-trips through a real Modbus stack with no overlapping addresses and a word-order-sensitive codec — the map is internally coherent and wire-decodable. Does NOT prove byte-order or scaling match a real device: the emulator is seeded from the map's own types, so a uniformly wrong byte-order still round-trips. Only hardware-verified confirms byte-order/scale on the wire.
hardware-verified (software-key) x1 — Matched a real device with operator-attested readings as ground truth — the only rung that confirms word order + scaling on the wire.

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