TWI 2-Wire Controller
Tucor’s TWI is Tucor’s legacy 2-Wire irrigation controller available for control of 12-200 zones. With the ability to add up to 10 sensors and its unique “What/If” logic, Tucor’s TWI is perfect for standard and advanced irrigation applications.
Logic
Add up to 10 sensors and use “What/If” logic to automate valve & relay activation, alarms, and more based on a variety of sensor inputs
Modular Size
Pay for what you need with a controller that grows with you with a controller available in 12-200 zone configurations
Quality You Can Trust
Since 1995, Tucor has provided top-quality decoder & control products for many industries.
TWI 2-Wire Controller
Available in up to 200 station/ 10 sensor capacity
Station Extension Relay Board
Conversion unit for TWI to convert full or part of the controller to conventional output, making the TWI a “Hybrid” unit.
Controller
- Programs: 10, Step-based programming
- Program Correction: Water Budget & Remote Weather (requires RealNet subscription)
- Flow Sensors: Up to 10
- Flow Capability: Read to .1s, combine & react to flow values
- Master Valve: Yes, N/C & N/O. N/O added via logic
- What/If Programming: Use inputs from pressure, level, pH, moisture, flow and other sensors to write basic logic commands for valve activation & more
Decoder & 2-Wire
- Output Decoder: 1, 2, 4 & 6 station decoders, up to 200
- Simultaneous Station Run: Up to 12 (10 + Master Valve & Booster Pump)
- Input/Sensor Decoder: Pulse Output, 4-20mA, most digital sensors, up to 10
Remote Access
- Communication Options: Standard Cellular, Cellular Gateway, Ethernet
- Subscription: Yearly subscription “RealNet” required
New TWI controllers will no longer be available for purchase after December 1st, 2024. For information on support timelines, available product, and FAQ, access the TWI Discontinuation Notice.
For retrofit & replacement options, access the Replacing a Flowmaster, TWC-NV or TWI Controller Summary. The NLP controller is a direct replacement for any TW Series controller.
Controller Models
TWI-12-P Tucor 12-Station TWI Controller (Panel Version). Includes Transformer.
TWI-12-SS Tucor 12-Station TWI Controller. Includes Transformer and 12x12x6 Stainless Steel enclosure.
TWI-200-SS Tucor 12-Station TWI Controller. Includes Transformer and 12x12x6 Stainless Steel enclosure.
TWC-TWI Tucor Upgrade from TWC NV to TWI firmware only. Requires communication board and RealNet subscription.
Station Extension Relay Boards
SER-24-B Tucor Station Extension Relay board for retrofit of up to 24 conventionally wired zones. Comes with mounting plate
SER-48-B Tucor Station Extension Relay board for retrofit of up to 48 conventionally wired zones. Comes with mounting plate
Accessories
License Key Upgrade Examples
LK-100-200 Tucor License Key to upgrade from 100 to 200
LK-12-100Tucor License Key to upgrade from 12 to 100
Communication
SERVLINK-E Tucor SERVLINK E web module, ethernet-only version.
SERVLINK-AIR web connection module. CAT M1 (LTE-M) connectivity.
WIN-400-A Tucor 4G LTE Cellular Modem (AT&T). For applications using ET-300-W-N Weather Stations or Wireless Extensions.
Sensors
UFM-XX – Ultrasonic flow meter in 1-4” sizes with removable insertion
ET-300-W-N Tucor Solar powered weather station. Includes connectivity bridge to Tucor controller (LAN-100).
Technical
Manuals
- TWC-NV_Manual_(Archive) Old-style TWC Manual.pdf
- TWC-NV_Manual_TWC-NV User Manual.pdf
- TWI_Manual_Cycle Manager Web Manual.pdf
Tech Notes
- TN049 - 2-wire path testing.pdf
- TN056 - Controlling Lighting.pdf
- TN064 - System Grounding.pdf
- TN111 - WIN-400 Cellular Signal Guide.pdf
- TN118 – Configuring Java Security Settings for Cycle Manager.pdf
- TN119 – Changing the Default Program Associated with JTStart.pdf
- TN120 - TWC & TWI Station Naming.pdf
Drawings
- TWI_Drawing_TWI 4-20mA.png
- TWI_Drawing_TWI NC Relay.png
- TWI_Drawing_TWI NO Relay.png
- TWI_Drawing_TWI WRClik.jpg
- TWI_Drawing_UFM - SD-100.png
- TWI_Drawing_WeatherStation TWI WIN-400.jpg
Other
- TWI_TWI Menu Explanation - Alarm Explanation.png
- TWI_TWI Menu Explanation - DateTime.png
- TWI_TWI Menu Explanation - Navigating the Display.png
- TWI_TWI Menu Explanation - Navigating the Display2.png
- TWI_TWI Menu Explanation - Program Overlap.png
- TWI_TWI Menu Explanation - Running a Test Program.png
- TWI_TWI Menu Explanation - Setup to Decoders.png
- TWI_TWI Menu Explanation -Program Mode.png
Specifier Documents
Written Specification
CAD & Rendered Drawings
- 2-Wire_CAD_Connecting Field Surge Protector.pdf
- 2-Wire_CAD_system grounding.pdf
- 2-Wire_Controller Grounding - Ground Rod Network, no LTB.pdf
- TWC-NV_CAD_20_drawings.dwg
- TWC-NV_CAD_Connecting Field Surge Protector.dwg
- TWC-NV_CAD_Connecting TWC NV Decoders.dwg
- TWC-NV_CAD_Controller Grounding - Ground Rod Network, NO ltb.dwg
- TWC-NV_CAD_LD-100.dwg
- TWC-NV_CAD_LD-200.dwg
- TWC-NV_CAD_LD-400.dwg
- TWC-NV_CAD_transformer.dwg
- TWC-NV_CAD_T-19 LD-100.pdf
- TWC-NV_CAD_T-22 LD-600.pdf
- TWC-NV_CAD_transformer.pdf
- TWC-NV_CAD_zoom 2wire.pdf
WHO WE ARE
OUR GUIDING PRINCIPLES
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QUALITY AT OUR CORE
CONSERVATION FOR ALL
Applications
- Large Residences
- Sites with multiple POCs
- Industrial Applications
- Pondfill Applications
- School Districts
- Municipalities