MBMap Registry
  1. Devices
  2. Continental Control Systems
  3. WattNode WNC

Continental Control Systems WattNode WNC Modbus register map

3-phase energy meter, Modbus RTU/TCP. FC03/04 read, FC06/16 write. Basic FP (f32): energy kWh at 1000-1006, power W at 1008-1014, voltage V at 1016-1030, freq at 1032. Advanced FP: per-phase energy+reactive+apparent at 1100-1136, PF at 1138-1144, reactive/apparent power at 1146-1160, current A at 1162-1166, demand at 1168-1180. Integer equivalents (s32 energy, s16 power/volt/current) at 1200-1220 (basic) and 1300-1361 (advanced). Config at 1600-1622. Comms at 1650-1655. Diagnostics at 1700-1722.

  • Unofficial
  • 159 registers
  • Revision 2

Unofficial: Copied from an unofficial source and not tested. Read it as a draft and check a value on the real device before you rely on the rest. Check the map against the manufacturer's documentation before you write to a live device. Tested it? Report a test.

Download .mbmap.json Raw JSON View on GitHub Suggest a correction Report a problem

Communication

Protocol
Modbus TCP and RTUdefault
Unit ID
1default
TCP port
502default
Serial
9600 8E1 · 9600 baud, 8 data bits, even parity, 1 stop bit defaults
Byte / word order
ABCD · bytes big-endian, words high first
Addresses
0-based

Connection values are defaults: the device may be configured differently.

Map

Registers
159 holding registers
Revision
2
Added
()
File
maps/continental-control-systems/wattnode-wnc.mbmap.json · 18 KB · history
SHA-256
eaa2f3028b86e435f0bee44df35f75e6da789af92b8f896834d60b6eff1e6eef
Manufacturer
ctlsys.com

Sources and notes

Source: Omni Console device library (OmniCoreST), modbus-library/continental-wattnode-wnc.toml; Source: continental-wattnode-wnc-modbus-manual.pdf (pp. 32-50). Not verified against the manufacturer's documentation

  • Continental Control Systems WattNode WNC.
  • Converted automatically from the Omni Console device library (OmniCoreST).
  • Not verified against the manufacturer's documentation.
  • Corrections are welcome (CONTRIBUTING.md). Change x_status once this table has been checked against the manual.
  • | Continental Control Systems WattNode WNC — 3-Phase Energy Meter (Modbus RTU/TCP)
  • |
  • | Source: continental-wattnode-wnc-modbus-manual.pdf (pp. 32-50)
  • | Models: WNC-3Y-208-MB, WNC-3Y-400-MB, WNC-3Y-480-MB, WNC-3Y-600-MB,
  • | WNC-3D-240-MB, WNC-3D-400-MB, WNC-3D-480-MB
  • | Protocol: Modbus RTU or TCP; FC03/FC04 read (interchangeable), FC06/FC16 write
  • | Baud: 9600 or 19200 (DIP switch); overridable via register 1652
  • | Register numbering: source uses 1-based numbers; TOML addresses are 0-based (source - 1).
  • | 32-bit values: low 16 bits at the listed address, high 16 bits at address+1 (little-endian words).
  • | Floating point: IEEE 754 f32, low word first.
  • | Integer energy (s32): units of 0.1 kWh, 0.1 kVARh, or 0.1 kVAh.
  • | Integer power (s16): units of PowerIntScale watts (reg 1608, default auto).
  • | Integer voltage (s16): units of 0.1 V.
  • | Integer current (s16): scaled by CtAmps/CurrentIntScale.
AreaAddressNameTypeAccessUnitScaleDescription
HR 0 uint32 ABCD R
HR 1000 float32 ABCD R
HR 1002 float32 ABCD R
HR 1004 float32 ABCD R
HR 1006 float32 ABCD R
HR 1008 float32 ABCD R
HR 1010 float32 ABCD R
HR 1012 float32 ABCD R
HR 1014 float32 ABCD R
HR 1016 float32 ABCD R
HR 1018 float32 ABCD R
HR 1020 float32 ABCD R
HR 1022 float32 ABCD R
HR 1024 float32 ABCD R
HR 1026 float32 ABCD R
HR 1028 float32 ABCD R
HR 1030 float32 ABCD R
HR 1032 float32 ABCD R
HR 1100 float32 ABCD R
HR 1102 float32 ABCD R
HR 1104 float32 ABCD R
HR 1106 float32 ABCD R
HR 1108 float32 ABCD R
HR 1110 float32 ABCD R
HR 1112 float32 ABCD R
HR 1114 float32 ABCD R
HR 1116 float32 ABCD R
HR 1118 float32 ABCD R
HR 1120 float32 ABCD R
HR 1122 float32 ABCD R
HR 1124 float32 ABCD R
HR 1126 float32 ABCD R
HR 1128 float32 ABCD R
HR 1130 float32 ABCD R
HR 1132 float32 ABCD R
HR 1134 float32 ABCD R
HR 1136 float32 ABCD R
HR 1138 float32 ABCD R
HR 1140 float32 ABCD R
HR 1142 float32 ABCD R
HR 1144 float32 ABCD R
HR 1146 float32 ABCD R
HR 1148 float32 ABCD R
HR 1150 float32 ABCD R
HR 1152 float32 ABCD R
HR 1154 float32 ABCD R
HR 1156 float32 ABCD R
HR 1158 float32 ABCD R
HR 1160 float32 ABCD R
HR 1162 float32 ABCD R
HR 1164 float32 ABCD R
HR 1166 float32 ABCD R
HR 1168 float32 ABCD R
HR 1170 float32 ABCD R
HR 1172 float32 ABCD R
HR 1174 float32 ABCD R
HR 1176 float32 ABCD R
HR 1178 float32 ABCD R
HR 1180 float32 ABCD R
HR 1200 int32 ABCD R
HR 1202 int32 ABCD R
HR 1204 int32 ABCD R
HR 1206 int32 ABCD R
HR 1208 int16 R
HR 1209 int16 R
HR 1210 int16 R
HR 1211 int16 R
HR 1212 int16 R
HR 1213 int16 R
HR 1214 int16 R
HR 1215 int16 R
HR 1216 int16 R
HR 1217 int16 R
HR 1218 int16 R
HR 1219 int16 R
HR 1220 int16 R
HR 1300 int32 ABCD R
HR 1302 int32 ABCD R
HR 1304 int32 ABCD R
HR 1306 int32 ABCD R
HR 1308 int32 ABCD R
HR 1310 int32 ABCD R
HR 1312 int32 ABCD R
HR 1314 int32 ABCD R
HR 1316 int32 ABCD R
HR 1318 int32 ABCD R
HR 1320 int32 ABCD R
HR 1322 int32 ABCD R
HR 1324 int32 ABCD R
HR 1326 int32 ABCD R
HR 1328 int32 ABCD R
HR 1330 int32 ABCD R
HR 1332 int32 ABCD R
HR 1334 int32 ABCD R
HR 1336 int32 ABCD R
HR 1338 int16 R
HR 1339 int16 R
HR 1340 int16 R
HR 1341 int16 R
HR 1342 int16 R

Help improve this map

Esc