Product Overview
The Allen-Bradley 1790D-0B16 is a CompactBlock LDX DeviceNet module designed for distributed I/O in industrial automation. It provides 16 nonisolated sourcing outputs with a field power voltage of 24 V DC. Its removable 37-pin D-shell connector simplifies installation and maintenance, making it a reliable choice for demanding applications.
Technical Specifications Breakdown
Key parameters for the 1790D-0B16 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Output Type | Sourcing outputs |
| Number of Outputs | 16 points nonisolated, sourcing |
| Field Power Voltage | 24 V DC |
| On-state Voltage | 10V dc min, 24V dc nom, 28.8V dc max |
| Output Current Rating | 0.5 A max per output, 4.0 A max per common |
| Network Interface | DeviceNet network |
| Communication Rates | 125 kbps, 250 kbps, 500 kbps |
| Connector Type | Removable D-shell 37-pin connector |
| Weight | 0.50 lbs (0.23 kg) |
Industry Applications
This module is well-suited for discrete manufacturing lines where 24 V DC sourcing outputs control actuators, solenoids, or indicator lights. In material handling systems, it manages conveyor zones with fast signal delays (Off to On: 0.5 ms max, On to Off: 1.0 ms max). For packaging machinery, the 64-node network support allows integration of multiple I/O points without complex wiring.
Installation & Setup Guidance
Mount the module in a dry, ventilated enclosure within 1000 meters altitude. Connect the DeviceNet trunk line using approved cables and terminate properly. Wire field devices to the 37-pin D-shell connector following the pinout for 8 points/8 COM common grouping. Ensure field power is within 10…28.8V dc range. Set communication rates (125, 250, or 500 kbps) via network configuration tools.
Maintenance & Reliability
Inspect the 37-pin connector periodically for corrosion or loose pins. Keep storage humidity below 80% (non-condensing). The module's photocoupler isolation (1250V ac rms) protects logic circuits. No routine calibration is needed; verify LED status indicators (16 green) during power-up.
Compatibility & Integration
The 1790D-0B16 operates on DeviceNet networks with standard scanners. It supports up to 64 nodes, enabling distributed I/O architectures. The 16 sourcing outputs are compatible with 24 V DC loads; off-state leakage is 0.5 mA max. Use with Allen-Bradley controllers or third-party DeviceNet masters.
Selection Guide & Purchasing Advice
When selecting this module, confirm your network requires DeviceNet and your loads are sourcing-type. The 1790D-0B16 is available from AutoDCSTech, a trusted supplier of industrial automation parts. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Troubleshooting & Common Issues
If outputs fail to energize, check field power voltage (10…28.8V dc) and network communication rates. A flashing green LED may indicate configuration mismatch. For off-state leakage above 0.5 mA, inspect load impedance. Always power down before handling the connector.
Availability & Condition at AutoDCSTech
| Part Number | 1790D-0B16 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
