Description
Powerful & Compact I/O Module
The Allen-Bradley 1790D-T8BV8B base module packs 16 I/O points. It connects machines to DeviceNet networks easily. This rugged module is perfect for tight control panels.
Core Features & Benefits
- Space-Saver: Combines 8 inputs and 8 outputs in one slim unit.
- Clear Diagnostics: Individual LED lights for every channel.
- Fast Response: Quick signal switching (0.5ms On, 1.0ms Off).
- Strong Protection: High 1250V isolation protects your system.
- Easy Wiring: Simple terminal block connections.
- Universal Use: Inputs work with both sinking and sourcing signals.
Detailed Technical Specifications
- Brand & Model: Allen-Bradley 1790D-T8BV8B
- Product Line: CompactBlock LDX
- Module Type: DeviceNet Base Module
- Voltage Rating: 24V DC Nominal
- Input Points: 8 (Universal Sink/Source)
- Output Points: 8 (Sourcing Type)
- On-State Input Current: 8 mA max per point
- Input Impedance: 4.8 kΩ
- Output Current: 0.5A max per point, 4.0A per common
- Isolation Voltage: 1250V AC RMS (I/O to Logic)
- Power Dissipation: 1.2W maximum
- Operating Voltage Range: 10V DC to 28.8V DC
- Connection: Removable terminal block (M3 screw)
Reliable Support Package
- Warranty: Full 12-month coverage.
- Global Shipping: FedEx, UPS, and DHL options.
- Included: Module ready for installation.
Expert Answers (FAQ)
How do I set the DeviceNet node address?
Use the rotary switches on the module. Set a unique address between 0 and 63.
Can one power supply run multiple modules?
Yes. Check total current draw. Stay within your power supply’s rated capacity.
What does a flashing status LED mean?
It often indicates a network communication fault. Check connections and baud rate.
Is this module good for high-speed inputs?
For very fast pulses, check the 1.0ms Off delay. It suits most standard sensing.
Any tip for stable network performance?
Keep your DeviceNet trunk cable short. Use proper termination resistors at both ends.
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