Product Introduction
When ControlNet network configuration data must be stored reliably, the Allen-Bradley 1769-L32C processor module delivers automatic backup and parameter retention. Part of the CompactLogix series, this modular controller offers 750 KB memory and supports up to 16 I/O modules across 3 banks. Its status indicators provide immediate insight into module health, helping operators quickly identify power loss, misplaced modules, or minor and major faults.
Technical Specifications
| Parameter |
Value |
| Memory |
750 KB |
| I/O Modules Supported |
16 |
| I/O Banks |
3 |
| Backplane Current (5 VDC) |
650 mA |
| Backplane Current (24 VDC) |
40 mA |
| Power Dissipation |
4.21 W |
| Operating Temperature |
0 to 60 °C |
| Relative Humidity |
5 to 95% |
| Weight |
0.32 kg (0.7 lb) |
| Communication Ports |
RS-232, NAP, ControlNet |
| Replaceable Battery |
1769-BA |
| Wire Type |
Copper, 90 °C |
| Wire Size (Solid) |
22–14 AWG |
| Wire Size (Stranded) |
22–16 AWG |
| Mounting Shock (DIN Rail) |
20 g |
| Mounting Shock (Panel) |
30 g |
For complete technical details, contact UBEST Automation.
Industry Applications
The Allen-Bradley 1769-L32C excels in ControlNet-based automation systems requiring stable parameter storage. In batch processing plants, it automatically backs up network configuration, minimizing downtime during startup. In material handling, its 100 connections support distributed I/O while status indicators reduce troubleshooting time.
Maintenance & Reliability
Routine inspection of the 1769-L32C includes verifying that the operating temperature stays within 0–60 °C and humidity below 95%. Replace the 1769-BA battery periodically to retain memory. Clean contacts and ensure DIN rail or panel mounting is secure to avoid shock damage. Proactive maintenance extends module life and reduces unplanned downtime.
Troubleshooting & Common Issues
The Allen-Bradley 1769-L32C uses steady, alternating, or flashing status lights to indicate specific conditions. A steady red LED may signal a major fault; flashing green indicates normal operation. Common issues include loss of power, improper seating in the rack, or minor faults from transient disturbances. Always refer to the indicator patterns to isolate problems quickly.
Selection Guide & Purchasing Advice
When sourcing the 1769-L32C, confirm compatibility with your existing ControlNet network and CompactLogix chassis. Note that this module is discontinued by the manufacturer, making tested, reliable surplus units essential. UBEST Automation offers rigorously inspected modules with verified performance. For assistance selecting the right processor, contact our team.