1790D-8BV8V – 24V DC 8 Universal Input / 8 Sinking Output Base & Expansion Module
Compact, high-density I/O solution for DeviceNet networks. Supports 8 nonisolated sinking/sourcing inputs and 8 sinking outputs. Ideal for industrial automation where space and performance matter.
Technical Specifications
| Brand | Allen‑Bradley | Model | 1790D‑8BV8V |
| Series | 1790 CompactBlock LDX | Type | Base + Expansion I/O |
| Inputs | 8 points, nonisolated, sinking/sourcing | Outputs | 8 points, nonisolated, sinking |
| On‑state voltage (in) | 9.6…28.8V dc | On‑state voltage (out) | 10…28.8V dc |
| On‑state current (in) | 8 mA max @ 28.8V | Output current rating | 0.5 A per point, 4.0 A per common |
| Off‑state voltage (in) | 5V dc max | Off‑state leakage (out) | 0.5 mA max |
| Input impedance | 4.8 KΩ nominal | Output voltage drop | 0.5V dc max |
| Common type (in) | 8 points / 8COM (nonpolarity) | Common type (out) | 8 points / 8 COM |
| Output signal delay | Off→On: 0.5 ms; On→Off: 1.0 ms | Indicators | 8 green status per block |
| DeviceNet supply | 11…28.8V dc | Field power | 10…28.8V dc |
| Power dissipation | 1.2 W max (base) | Field power dissipation | 6 mA @ 28.8V per point |
| Isolation | I/O to logic: 1250V ac rms | DeviceNet to logic | nonisolated |
| Wiring | 37‑pin D‑shell connector | ||
Key Features & Diagnostics
- Diagnostic capability: Status LEDs for each point – green indicates ON state.
- Environmental tolerance: Operates from 0 to 55 °C, 5…95% RH non‑condensing.
- Noise immunity: Photocoupler isolation (1250V ac rms) protects logic.
- Resolution & linearity: Digital I/O with <1 ms response – repeatable and precise.
- Frequency response: Output delay 0.5 ms (Off→On) / 1.0 ms (On→Off).
Installation & Compatibility
- Mount on DIN rail or panel – compact base block.
- Use 37‑pin D‑shell for field wiring (included in package).
- Compatible with DeviceNet scanners and PLCs (e.g., ControlLogix, CompactLogix).
- Software: RSLogix 5000 / Studio 5000 with AOP (Add‑On Profile).
Certifications & Warranty
- Certified: UL, cUL, CE, Class I Div 2 (pending).
- Warranty: 12‑month full replacement – covers defects.
- Packaging: Module, 37‑pin connector kit, installation guide.
Shipping & Logistics
- Carriers: FedEx, UPS, DHL – worldwide express.
- Origin: Shipped from global warehouses (US/EU/Asia).
Typical Applications
- Conveyor control systems
- Packaging machines
- Material handling equipment
- Small‑scale process cells
- Replacement for obsolete 1790 series blocks
FAQ – Quick Answers
- Can I mix sinking and sourcing inputs? Yes, each input is independent.
- What is the max output current per common? 4.0 A total.
- Does it need external DeviceNet power? Yes, 11…28.8V dc separate from field.
- Is it a drop‑in replacement for 1790D‑8BV8? Yes, identical footprint.
Why Buy From Oiltech Controls?
- 15+ years in industrial automation spares.
- Global shipment – fast, tracked, insured.
- Tested surplus & refurbished options – cost‑effective.
- 12‑month warranty on every module.
- Technical verification before dispatch – 100% functional.
- Support for obsolete systems – we know legacy.
Contact Information
Email: info@oiltechcontrols.com
WhatsApp: +86 158 8020 0923
© 2026 Oiltech Controls Limited. All rights reserved.
Original Source: https://www.oiltechcontrols.com/
Reviews
There are no reviews yet.