Analog Input Sensing Solution — Allen-Bradley 1790D-TN4V0 | CompactBlock LDX Series
Where This Product Is Used
The Allen-Bradley 1790D-TN4V0 CompactBlock LDX 4 A/I Base Block is deployed across a wide range of industrial automation environments where compact, distributed analog signal acquisition is critical:
- Process Manufacturing — Temperature, pressure, and flow monitoring on skid-mounted systems where panel space is constrained.
- Automotive Assembly Lines — Inline quality sensing for torque, force, and position feedback integrated directly into DeviceNet networks.
- Food & Beverage Plants — Hygienic-zone analog acquisition for level sensors and load cells without a dedicated analog I/O rack.
- Water & Wastewater Treatment — Remote analog sensing at pump stations and lift stations using distributed I/O architecture.
- Material Handling & Conveyor Systems — Tension and weight monitoring at distributed points along conveyor lines.
- OEM Machine Builders — Embedded into compact machine frames where a full PLC rack is impractical but analog feedback is required.
Technical Specifications
| Attribute | Value |
|---|---|
| Catalog Number | 1790D-TN4V0 |
| Series | CompactBlock LDX |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Module Type | Analog Input Base Block |
| Number of Channels | 4 Analog Inputs |
| Network Interface | DeviceNet |
| Input Signal Type | Voltage (V suffix) |
| Form Factor | CompactBlock (DIN-rail mountable) |
| Product Weight | 1,400 g |
| SKU | 1790D-TN4V0 |
Why Engineers Specify This Model
- Distributed Architecture — Eliminates long analog signal runs back to a central rack; the block sits at the field device, reducing noise and wiring cost.
- DeviceNet Native — Integrates seamlessly into existing Allen-Bradley DeviceNet networks managed by ControlLogix or CompactLogix PLCs without additional gateways.
- 4-Channel Density — Handles four independent analog voltage inputs in a single compact housing, maximizing I/O density per DIN-rail segment.
- Plug-and-Play Expansion — The base block design allows expansion modules to be added without rewiring the network node.
- Proven Rockwell Ecosystem — Fully supported in Studio 5000 / RSLogix 5000 with EDS file configuration, reducing commissioning time.
- Rugged Industrial Rating — Designed for the electrical noise, vibration, and temperature variation typical of factory-floor environments.
Complete System Bill of Materials
A typical distributed analog sensing node built around the 1790D-TN4V0 includes:
- 1790D-TN4V0 — CompactBlock LDX 4 A/I Base Block (this unit)
- DeviceNet Scanner Module — e.g., 1756-DNB (ControlLogix) or 1769-SDN (CompactLogix) for network management
- DeviceNet Trunk Cable & Taps — Thick or thin media per network topology
- 24 VDC Power Supply — For DeviceNet network power (e.g., 1606-XLP series)
- Analog Field Sensors — Voltage-output transducers (pressure, temperature, load cell transmitters)
- DIN Rail & Enclosure — For panel or field-mount installation
- EDS File — Available from Rockwell Automation Product Compatibility & Download Center (PCDC)
Compliance & Industry Standards
- Designed and manufactured under Rockwell Automation’s ISO 9001 quality management framework.
- Compliant with DeviceNet (IEC 62026-3) open network standard.
- CE marked for European market deployment.
- UL/cUL listed for North American industrial installations.
- RoHS compliant — suitable for environmentally regulated facilities.
Quality Assurance & Sourcing
At Konmask.com, every Allen-Bradley module we supply undergoes a structured verification process:
- Authenticity Check — Physical inspection of catalog label, date codes, and Rockwell Automation holographic markings.
- Functional Verification — Where applicable, modules are bench-tested for power-on response and communication handshake prior to dispatch.
- Traceable Supply Chain — We source from authorized distributors and verified industrial surplus channels with full documentation.
- Secure Packaging — Anti-static packaging with shock-absorbing foam to protect sensitive electronics during international transit.
- Warranty — 90-day replacement warranty against defects in materials and workmanship.
How to Source This Part
- Request a Quote — Email support@konmask.com with your required quantity and delivery timeline.
- Confirm Availability — Our team will verify stock and provide a lead-time estimate within 24 business hours.
- Place Order — Proceed via our secure online checkout or via purchase order for approved B2B accounts.
- Receive & Inspect — All shipments include a packing list and inspection report. Contact us immediately if any discrepancy is found.
- Technical Support — Post-delivery commissioning questions are supported by our engineering team at no additional charge.
Application-Specific FAQ
Q: Can the 1790D-TN4V0 accept 4–20 mA current loop inputs?
A: The TN4V0 suffix designates voltage inputs. For current (4–20 mA) inputs, specify the 1790D-TN4C0 variant. Confirm your sensor output type before ordering.
Q: What is the maximum DeviceNet network length supported?
A: Standard DeviceNet supports up to 500 m on thick media at 125 kbps. The 1790D-TN4V0 operates within standard DeviceNet electrical specifications.
Q: Is this module compatible with ControlLogix and CompactLogix?
A: Yes. Any DeviceNet scanner module (1756-DNB, 1769-SDN, etc.) can manage the 1790D-TN4V0 as a DeviceNet slave device.
Q: Do you supply the EDS file?
A: The EDS file is available directly from Rockwell Automation’s PCDC. We can assist customers in locating the correct file version upon request.
Q: Can I order a single unit or is there a minimum order quantity?
A: We supply single units and bulk orders. Contact us for volume pricing on quantities of 5 or more.
Q: What is the lead time for this part?
A: In-stock units ship within 2–3 business days. Out-of-stock items typically have a 2–4 week lead time depending on supply chain conditions.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
