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888-WATTNOD
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FAX: (303)444-2903
Email:
sales@ccontrolsys.com
Continental
Control Systems
3131 Indian Rd.,
Suite A
Boulder, CO 80301
USA |
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WattNode® MODBUS
MODBUS Networks AC Power Measurement,
True Power, kWh
Reactive Power,
VARs, Power Factor,
Individual Phase Measurements |
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Overview
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Specifications
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Models & Pricing
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WattNode MODBUS
The WattNode MODBUS is a kilowatt hour kWh energy and power meter that communicates on a EIA RS-485 network, measures 1, 2, or 3 phases with voltages from 120 to 600 volts alternating current VAC and 5 to 6,000 amps in delta (phase to phase) and wye (phase to neutral) configurations.
Measurements
- Supports floating point and integer registers
- True RMS Power - Watts (Phase A, B, C, all phases)
- Reactive Power - VARs (Phase A, B, C, all phases)
- Power Factor (Phase A, B, C, all phases)
- True RMS Energy - Watthours WH kWh (Phase A, B, C, all phases)
- Reactive Energy - VAR-hours (All Phases)
- AC Frequency
- RMS Voltage (Phase A, B, C)
- RMS Current (Phase A, B, C)
- Demand
- Peak Demand
Features
WattNode is a registered trademark of Continental Control Systems LLC.
MODBUS Communication
- Protocol: MODBUS RTU (binary)
- Baud Rates: 9,600 and 19,200
- Duplex: Half (two-wire plus common)
- Parity: N81 (no parity, eight data bits, one stop bit)
- MODBUS Buffer: 256 bytes
- Response Time: 5 - 300 milliseconds
EIA RS-485 Interface:
- Driver Output Voltage (Open Circuit): ±6 V maximum
- Driver Output Voltage (54Ω load): ±1.5 V minimum
- Driver Output Current (54Ω load): ±60 mA typical
- Driver Output Rise Time (54Ω || 50pF load): 900nS typical
- Receiver Common-Mode Voltage Range: -7 V to +12 V maximum
- Receiver Sensitivity: ±200 mV
- Receiver Bus Load: 1/8 unit load
Certifications
- Emissions: FCC Part 15, Class B; EN 55022: 1994, Class B
- UL and cUL Listed (UL 61010-1)
Electrical
- Line powered
- FCC Class B
- Operating Voltage Range: -20% to +15% of nominal
- Power Line Frequency: 50/60 Hz
- CT Input: 0.333 VAC nominal, 0 - 0.5 VAC operating, 3 VAC maximum
Measurement Configurations
- Three phase: 4 wire
- Three phase: 3 wire
Accuracy
- 0.5% nominal (see manual for details)
Environmental
- Operating Temperature: -30°C to +55°C (-22°F to 131°F)
- Altitude: Up to 2000 m (6560 ft)
- Operating Humidity: 5 to 90% relative humidity (RH) up to 40°C, decreasing linearly to 50% RH at 55°C.
- Pollution: POLLUTION DEGREE 2 - Normally only non-conductive pollution; occasionally, a temporary
conductivity caused by condensation must be expected.
- Indoor Use: Suitable for indoor use.
- Outdoor Use: Suitable for outdoor use when mounted inside an electrical enclosure (Hammond
Mfg., Type EJ Series) that is rated NEMA 3R or 4.
Mechanical Click on the image for a larger view.
- Enclosure:
- High impact, ABS plastic
- Flame Resistance Rating: 94V-0, IEC FV-0
- Size: 143mm × 85mm × 38mm (5.63" × 3.34" × 1.5")
- Weight: 305 gm (10.8 oz)
- Connectors: Euroblock style pluggable terminal blocks
- Green: 22 to 12 AWG (1.0mm - 3.2mm), 600 V
- Black: 22 to 12 AWG (1.0mm - 3.2mm), 300 V
Pricing information for all models and products
| Model |
VAC Phase to Neutral |
VAC Phase to Phase |
Electrical
Service Types |
Neutral
Required |
MSRP |
| WNC-3Y-208-MB |
120 |
208-240 |
1 Phase 2 Wire 120V with neutral
1 Phase 3 Wire 120V/240V
3 Phase 4 Wire 120V/208V |
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$293 |
| WNC-3Y-400-MB |
230 |
400 |
1 Phase 2 Wire 230V with neutral
3 Phase 4 Wire 230V/400V |
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$328 |
| WNC-3Y-480-MB |
277 |
480 |
3 Phase 4 Wire 277V/480V |
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$328 |
| WNC-3Y-600-MB |
347 |
600 |
3 Phase 4 Wire 347V/600V |
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$354 |
| WNC-3D-240-MB |
N/A |
208-240 |
1 Phase 2 Wire 208V (No neutral)
1 Phase 2 Wire 240V (No neutral)
1 Phase 3 Wire 120V/240V
3 Phase 3 Wire 208V (No neutral)
3 Phase 4 Wire 120V/208V |
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$328 |
| WNC-3D-400-MB |
N/A |
400 |
3 Phase 3 Wire 400V (No neutral)
3 Phase 4 Wire 230V/400V |
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$354 |
| WNC-3D-480-MB |
N/A |
400-480 |
3 Phase 3 Wire 480V (No neutral)
3 Phase 4 Wire 277V/480V |
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$354 |
List prices for 1 piece quantities. Call for pricing on larger quantities.
Prices effective May 1, 2009. Prices subject to change without notice.
Datasheet, Manual, XIF File, and Application Notes
Options
©Copyright 2009 Continental Control Systems, LLC. All Rights Reserved.
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