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- Allen Bradley
- 1769-L35CR
- CompactLogix I/O Module
- USA
- 140 mm × 90 mm × 110 mm
- 0.6kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
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All our products are priced very favorably because we have our own warehouse and supply.
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Allen Bradley 1769-L35CR CompactLogix Controller Detailed Overview
Product Introduction
The Allen Bradley 1769-L35CR is a CompactLogix 1769 series programmable automation controller designed for mid-sized industrial automation systems requiring deterministic communication, modular I/O expansion, and ControlNet-based networking.
It is widely used in manufacturing environments such as automotive production lines, packaging machinery, material handling systems, and process automation where stable network performance and distributed I/O control are required.
The defining feature of the 1769-L35CR is its ControlNet communication architecture, which enables real-time, deterministic data exchange across industrial networks.
It supports modular expansion using 1769 Compact I/O modules, allowing flexible system design and scalable automation architecture.
This model is considered a legacy but still widely deployed controller in installed industrial systems due to its reliability and robust ControlNet communication structure.
Brand Information
| Item | Description |
|---|---|
| Brand | Industrial Automation Controller Manufacturer |
| Product Type | Programmable Logic Controller (PLC / PAC) |
| Product Category | ControlNet CompactLogix Controller |
| Main Function | Machine Control + Networked Automation |
| Communication Protocol | ControlNet + RS-232 |
| Application Fields | Manufacturing, Automotive, Packaging, Process Control |
| Mounting Type | DIN Rail Mount |
Product Series Information
| Item | Description |
|---|---|
| Product Series | CompactLogix 1769 Series |
| Controller Family | CompactLogix |
| Architecture Type | Modular PLC Platform |
| Expansion System | 1769 Compact I/O Modules |
| Communication Architecture | ControlNet + Serial Communication |
| Programming Software | RSLogix 5000 |
| Motion Capability | Basic control (non-motion optimized) |
| Product Lifecycle | Legacy / Discontinued generation |
Detailed Technical Specifications
| Parameter | Details |
|---|---|
| Model | 1769-L35CR |
| Controller Type | CompactLogix ControlNet Processor |
| User Memory | 1.5 MB |
| Nonvolatile Memory | CompactFlash support (1784-CF128) |
| Digital I/O | Via 1769 Compact I/O modules |
| Analog I/O | Via 1769 Compact I/O modules |
| Communication Ports | 1 × ControlNet, 2 × RS-232 |
| ControlNet Network | Deterministic industrial network |
| Serial Protocols | DF1, DH-485, ASCII |
| Maximum I/O Modules | Up to 30 modules |
| I/O Banks | Up to 3 banks |
| Controller Tasks | Up to 8 tasks |
| Power Supply | 24V DC system power |
| Backplane Current | Approx. 680 mA @ 5V DC |
| Power Dissipation | Approx. 4.3–4.6 W |
| Programming Languages | Ladder Logic, ST, FBD, SFC |
| Mounting Type | DIN rail / panel mount |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| Dimensions | 140 mm × 90 mm × 110 mm |
| Weight kg | Approx. 0.60 kg |
| Communication Architecture | ControlNet + Serial |
| Firmware Upgrade | Supported (legacy tools) |
| Certifications | CE, UL, CSA |
Product Features
1. ControlNet Deterministic Communication
The 1769-L35CR uses ControlNet as its primary network, enabling deterministic, time-synchronized communication.
This is especially important for applications requiring stable data exchange between controllers and distributed I/O systems.
2. Expanded I/O Capacity
Supports up to 30 Compact I/O modules across multiple banks.
This makes it suitable for medium-scale automation systems with distributed control requirements.
3. Reliable Legacy Control Architecture
The controller is designed for long-term industrial operation and is still widely used in existing ControlNet-based installations.
It provides stable performance in environments where system upgrades are limited.
4. Dual Serial Communication Support
Includes two RS-232 ports supporting DF1, DH-485, and ASCII protocols for integration with legacy devices.
This improves compatibility with older industrial equipment.
5. Industrial-Grade Robust Design
Built for harsh industrial environments with vibration resistance, electrical noise immunity, and wide temperature tolerance.
Product Applications
Automotive Manufacturing Systems
Used in assembly lines, welding stations, and coordinated production systems requiring deterministic network control.
Packaging Equipment
Applied in labeling machines, filling systems, and conveyor-based packaging lines.
Process Control Systems
Used in water treatment, chemical processing, and industrial process automation requiring stable communication networks.
Material Handling Systems
Applied in conveyor systems, warehouse automation, and logistics control systems.
Legacy Industrial Installations
Widely deployed in factories using ControlNet infrastructure for distributed automation.
Product Advantages
| Advantage | Description |
|---|---|
| ControlNet Determinism | Real-time synchronized communication |
| High I/O Expansion | Supports up to 30 modules |
| Multi-Bank Architecture | Flexible system configuration |
| Dual Serial Ports | Supports legacy device integration |
| Stable Industrial Performance | Proven long-term reliability |
| Modular Design | Easy system expansion |
| Strong Compatibility | Works with 1769 I/O family |
| Industrial Durability | Resistant to harsh environments |
| Reliable Network Control | Suitable for distributed systems |
| Easy Maintenance | Simple diagnostics and replacement |
| Long Service Life | Designed for continuous operation |
| Flexible Integration | Supports mixed system environments |
Recommended Models from Same Series or Related Controllers
| Parameter | 1769-L35CR | 1769-L32C | 1769-L32E | 1769-L35E | 1769-L33ER |
|---|---|---|---|---|---|
| Series | CompactLogix 1769 | CompactLogix 1769 | CompactLogix 1769 | CompactLogix 1769 | CompactLogix 5370 L3 |
| User Memory | 1.5 MB | 750 KB | 750 KB | 1.5 MB | 2 MB |
| Communication | ControlNet | ControlNet | Ethernet/IP | Ethernet/IP | Ethernet/IP |
| Serial Ports | 2 | 1 | 1 | 1 | 1 USB + Ethernet |
| Integrated I/O | No | No | No | No | No |
| Max I/O Modules | 30 | 16 | 16 | 30 | 16 |
| Dimensions | 140×90×110 mm | ~140×90×110 mm | 204×110×76 mm | ~140×90×110 mm | 118×55×105 mm |
| Weight kg | 0.60 kg | 0.75 kg | 0.43 kg | 0.60 kg | 0.65 kg |
| Application | ControlNet Systems | ControlNet Legacy | Ethernet Upgrade | High Memory Legacy | Modern Control |
Related Model Notes
1769-L32C
Lower memory ControlNet controller for smaller distributed systems.
1769-L32E
Ethernet-based version replacing ControlNet architecture.
1769-L35E
Higher memory Ethernet alternative within the same generation.
1769-L33ER
Modern CompactLogix controller with higher performance and Ethernet/IP.
Popular Models from Same Platform
| Parameter | 1756-L81E | 5069-L310ER | 1734-AENTR | 1769-IF8 | 2080-LC50-48QWB |
|---|---|---|---|---|---|
| Type | ControlLogix CPU | CompactLogix CPU | I/O Adapter | Analog Module | Micro PLC |
| Memory | 3 MB | 2 MB | N/A | N/A | Embedded |
| Communication | Ethernet/IP | Ethernet/IP | Ethernet/IP | Backplane | Ethernet |
| Motion | Advanced | Integrated | None | None | Basic |
| Mounting | Chassis | DIN Rail | DIN Rail | DIN Rail | DIN Rail |
| Dimensions | 145×145×90 | 150×130×90 | 75×35×118 | 118×87×35 | 90×130×80 |
| Weight kg | 1.10 kg | 1.20 kg | 0.15 kg | 0.32 kg | 0.70 kg |
| Main Use | Large Systems | Modern Automation | Distributed I/O | Signal Processing | Small Machines |
Summary
The 1769-L35CR is a ControlNet-based CompactLogix controller designed for deterministic industrial communication and medium-scale automation systems.
Its core strengths are ControlNet real-time networking, high I/O expansion capability, and stable legacy performance, making it suitable for long-term industrial installations that still rely on ControlNet architecture.