ControlNet Motion & Process Control Solution — Allen-Bradley 1769-L35CR | CompactLogix Series
Where This Product Is Used
The Allen-Bradley 1769-L35CR CompactLogix controller is deployed across demanding industrial environments where deterministic ControlNet communication and mid-range processing power are non-negotiable. Typical application sites include:
- Automotive Assembly Lines — Coordinating multi-axis servo motion, conveyor sequencing, and vision-system interlocks on body-in-white and powertrain lines.
- Packaging & Material Handling — High-speed pick-and-place, case erecting, and palletizing cells requiring tight I/O synchronization over ControlNet.
- Water & Wastewater Treatment — SCADA-integrated pump station control, chemical dosing, and filtration sequencing with redundant network paths.
- Oil & Gas Upstream/Midstream — Wellhead automation, compressor control, and pipeline SCADA nodes demanding rugged, deterministic fieldbus performance.
- Food & Beverage Processing — CIP/SIP cycle management, batch recipe execution, and hygienic conveyor control in washdown-rated panels.
- Discrete Manufacturing — Machine tool control, press automation, and robotic cell integration where ControlNet peer-to-peer messaging reduces wiring complexity.
Technical Specifications
| Parameter | Specification |
|---|---|
| Catalog Number | 1769-L35CR |
| Brand / Manufacturer | Allen-Bradley (Rockwell Automation) |
| Series | CompactLogix |
| User Memory | 1.5 MB |
| Communication Port 1 | ControlNet (coax, dual-port redundant media) |
| Communication Port 2 | RS-232 (DF1 / DH-485 / ASCII) |
| Max CompactLogix I/O Modules | 16 (local chassis) |
| Max ControlNet Nodes | 99 per network |
| Programming Software | RSLogix 5000 / Studio 5000 Logix Designer |
| Supported Languages | Ladder Diagram, Function Block, Structured Text, Sequential Function Chart |
| Power Supply Requirement | 1769-PA2 / 1769-PB2 (sold separately) |
| Operating Temperature | 0 °C to 60 °C (32 °F to 140 °F) |
| Storage Temperature | -40 °C to 85 °C |
| Relative Humidity | 5 % to 95 % (non-condensing) |
| Weight | Approx. 350 g |
| Enclosure Rating | Open type — requires IP54 or better enclosure |
| Product Lifecycle Status | Active (verify current status with Rockwell) |
Why Engineers Specify This Model
- Deterministic ControlNet backbone — Scheduled, unscheduled, and messaging services on a single coax network eliminate Ethernet latency concerns in motion-critical loops.
- Dual-media redundancy — The CR suffix denotes dual coax ports, enabling media-redundant ControlNet topologies that survive a single cable fault without process interruption.
- 1.5 MB user memory — Sufficient for complex batch programs, large tag databases, and Add-On Instructions (AOIs) without external memory cards in most mid-size applications.
- Compact form factor — 1769 CompactLogix chassis integrates controller, I/O, and power supply in a space-efficient DIN-rail or panel-mount footprint.
- Unified programming environment — Studio 5000 Logix Designer provides a single development platform shared with ControlLogix, reducing engineer retraining costs.
- Proven field reliability — Widely deployed since the mid-2000s; extensive third-party support, spare-parts availability, and community knowledge base.
Complete System Bill of Materials
A fully operational 1769-L35CR control system typically requires the following components (sourced separately unless noted):
- 1769-L35CR — CompactLogix 1.5 MB ControlNet Controller (this item)
- 1769-PA2 or 1769-PB2 — 120/240 VAC or 24 VDC power supply
- 1769-IQ16 / 1769-OB16 — 16-point 24 VDC digital input / output modules
- 1769-IF4 / 1769-OF2 — 4-channel analog input / 2-channel analog output modules
- 1769-ECR or 1769-ECL — Right-end cap or left-end cap (required to terminate chassis)
- 1786-RPA/B — ControlNet repeater adapter (for extended or branched networks)
- 1786-CP — ControlNet coax cable and BNC connectors
- 9300-RADES — RSLogix 5000 / Studio 5000 programming software license
- 1756-USBDNET or 1784-U2CN — USB-to-ControlNet programming cable
Contact support@konmask.com for bundle pricing on complete system BOMs.
Compliance & Industry Standards
- UL Listed (UL 508, Industrial Control Equipment)
- CE Marked — EMC Directive 2014/30/EU; Low Voltage Directive 2014/35/EU
- ControlNet International (CI) conformant
- RoHS compliant
- ATEX / IECEx — Not rated for Zone 0/1; use appropriate barriers for hazardous locations
- ISA-5.1 and IEC 61131-3 programming standard compliance
Quality Assurance & Sourcing
Konmask.com sources Allen-Bradley 1769-L35CR units through verified industrial distribution channels. Every unit offered undergoes the following before dispatch:
- Visual inspection — Connector integrity, label legibility, and housing condition checked against OEM reference standards.
- Firmware version logging — Firmware revision recorded and disclosed; downgrade/upgrade guidance provided on request.
- Functional power-on test — Controller boots to idle state; diagnostic LEDs verified (RUN, I/O, FORCE, BAT, RS232, NET indicators).
- Anti-static packaging — Shipped in ESD-safe bags with foam cushioning inside double-wall corrugated cartons.
- Traceability documentation — Lot number, inspection date, and technician ID recorded for every unit; available on request.
How to Source This Part
- Add to cart and proceed to checkout — real-time stock status shown on product page.
- Request a quote — Email support@konmask.com with your required quantity, delivery timeline, and destination country for volume pricing.
- Urgent / same-day enquiries — Call or WhatsApp +0086 19859288691 for expedited sourcing confirmation.
- OEM / system integrator accounts — Ask about NET-30 terms, blanket PO arrangements, and dedicated account management.
Application-Specific FAQ
Q: Can the 1769-L35CR communicate with EtherNet/IP devices?
A: Not natively — this controller has ControlNet and RS-232 ports only. To bridge EtherNet/IP, add a 1769-ENET or use a ControlLogix gateway. Contact us for architecture guidance.
Q: What is the maximum number of axes this controller can coordinate?
A: The 1769-L35CR supports up to 2 motion axes via SERCOS or ControlNet-based drives when used with compatible 1769 motion modules. For higher axis counts, consider the 1769-L43 or ControlLogix platform.
Q: Is this controller compatible with Studio 5000 v32 and later?
A: Yes. The 1769-L35CR is supported in Studio 5000 Logix Designer v16 through current releases. Verify the specific AOP (Add-On Profile) version for your drive or device library.
Q: Can I use this in a redundant controller configuration?
A: CompactLogix does not support controller redundancy (that requires ControlLogix 1756-L7xS with 1756-RM2). The dual-port CR suffix provides media redundancy on the ControlNet cable only.
Q: What battery does the 1769-L35CR use?
A: The controller uses a 1769-BA lithium battery for memory backup. Battery life is typically 3–5 years; replace proactively to avoid program loss on power failure.
Q: Do you ship internationally?
A: Yes. Konmask.com ships globally. DDP (Delivered Duty Paid) terms available for select regions. Contact us for freight quotes and lead times to your destination.
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Contact: support@konmask.com | +0086 19859288691
