1769-L32C Allen-Bradley ControlNet CPU Controller Module
Manufacturer: Allen Bradley
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Part Number: 1769-L32C
Condition：New with Original Package
Product Type: CPU Processors
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Allen-Bradley 1769-L32C CompactLogix Controller
Configured for deterministically routing discrete logic states and network data packets in industrial environments, the Allen-Bradley 1769-L32C (1769-L32C CPU Processor) provides direct physical/electrical execution. The internal processing core computes user-configured routines while directly managing field communications across physical network interfaces.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-L32C |
| Brand | Allen-Bradley |
| Origin | Standard Factory Sourced |
| Weight | 0.82 lbs (0.37 kg) |
| Dimensions | Standard CompactLogix 1769 chassis controller width |
| Operating Temp | 0 deg C to 60 deg C |
| Power Consumption | 5-24 VDC operating range |
| User Memory | 750 KB to 1.5 MB variant dependent |
| I/O Capacity | Up to 32 local Compact I/O modules |
| Embedded Interfaces | ControlNet port, RS-232 serial port, NAP (Network Access Port) |
| Expansion Limit | Maximum 3 I/O banks using expansion cables |
| Mechanical Shock | 30G operational |
| Mechanical Vibration | 5G at 10 to 500 Hz |
| Storage Card Slot | 1 GB Secure Digital (SD) card support |
Profinet / EtherNet/IP Deterministic Networks and I/O Density Scaling
The central processing unit sustains deterministic communication update loops across the local chassis line via a dedicated backplane interface architecture. Expanding the configuration layout allows localized I/O density scaling up to 32 expansion modules distributed across a maximum of 3 distinct hardware banks. Because this specific controller uses ControlNet and RS-232 serial physical layers for native traffic, system engineers must deploy external communication interface adapters (such as the 1769-AENTR) when bridging the processor data tables into newer Profinet / EtherNet/IP deterministic networks, which requires matching firmware flash compatibility rules across all networked network nodes.
Frequently Asked Questions
Q: Does the 1769-L32C support hot-swapping or Removal and Insertion Under Power (RIUP)?
A: No. The module does not support hot-swapping. Disconnect all primary power lines supplying the backplane assembly and the internal processor circuitry prior to removing or inserting the component to prevent permanent electrical damage to the logic transceivers.
Q: How does the controller preserve volatile application variables during a complete system power disruption?
A: The controller transfers active memory registers into internal non-volatile flash storage upon complete power failure. Additionally, technicians can store the application image directly onto the integrated 1 GB Secure Digital card for automatic restoration during subsequent boot cycles.
Field Installation Guidelines
- Chassis Rail Securement and Backplane Locking: Mount the central processing unit onto a rigid EN 50022 compliant 35 mm DIN rail or bolt it down directly via the integrated panel mount tabs. Slide the adjacent 1769 module along the side grooves and shift the upper and lower locking levers completely forward to seal the internal data bus pins.
- Network Segment Routing and Isolation: Terminate ControlNet linkages using standard coaxial cable media and BNC connectors. Route all communication links physically separate from high-voltage AC motor lines, switching inductive coils, and variable frequency drive outputs to avoid structural data corruption.
- Chassis Ground Resistance Target: Connect the grounding terminal of the local power supply link to a dedicated, low-resistance single-point industrial earth ground bus. Maintain a continuous ground path across all interconnected DIN rail segments to eliminate common-mode noise on the backplane control loops.