Allen-Bradley 1763-L16BBB – 16-Point Compact PLC Controller | MicroLogix 1100 Series
Engineering Background
The MicroLogix 1100 series was introduced by Rockwell Automation as a cost-optimised, feature-rich successor to the MicroLogix 1000 platform. Designed for standalone machine control and small distributed architectures, it brought embedded Ethernet/IP connectivity to the compact PLC segment — a capability previously reserved for mid-range controllers. The 1763-L16BBB is the 16-point, all-relay-output variant, making it the preferred choice for applications requiring robust, isolated switching of inductive and resistive loads.
Product Positioning
The 1763-L16BBB occupies the entry-to-mid tier of the Allen-Bradley PLC portfolio, sitting above the MicroLogix 1000 and below the MicroLogix 1400. It is widely deployed in OEM machine panels, conveyor systems, pump stations, and HVAC control cabinets where deterministic ladder-logic execution, native Ethernet connectivity, and relay output durability are non-negotiable requirements.
Complete Technical Specifications
| Parameter | Value |
|---|---|
| Catalog Number | 1763-L16BBB |
| Series / Platform | MicroLogix 1100 |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Total I/O Points | 16 (10 In / 6 Out) |
| Input Type | 24V DC Sink/Source |
| Output Type | Relay (Form A, SPST-NO) |
| Output Voltage Range | 5–265V AC / 5–125V DC |
| Output Current (per point) | 2A continuous |
| User Memory | 8 KB data / 4 KB program |
| Execution Speed | ~1 ms/K typical scan |
| Communication Port 1 | RS-232 (DH-485 / Modbus RTU) |
| Communication Port 2 | 10/100 Mbps Ethernet/IP (RJ-45) |
| Built-in LCD Display | 4-line × 20-character, with keypad |
| Real-Time Clock | Yes (battery-backed) |
| Data Logging | Yes (on-board) |
| Supply Voltage | 24V DC |
| Power Consumption | ≤ 5W (base unit) |
| Operating Temperature | 0 – 55 °C |
| Storage Temperature | -40 – 85 °C |
| Relative Humidity | 5 – 95% (non-condensing) |
| Enclosure Rating | Open type (IP20) |
| Mounting | DIN rail or panel mount |
| Dimensions (H × W × D) | 90 × 140 × 87 mm |
| Weight | 550 g (approx.) |
| Certifications | UL, CE, CSA, C-Tick |
| Programming Software | RSLogix 500 / Studio 5000 Logix Designer (view only) |
| Expansion Modules | Up to 4 × 1762-series I/O modules |
Proven Application Environments
- Conveyor & Material Handling: Relay outputs drive motor starters and solenoid valves directly; DC inputs interface with proximity sensors and photoelectric eyes.
- Pump & Compressor Stations: Real-time clock and data logging enable scheduled run-hour tracking and predictive maintenance alerts.
- HVAC & Building Automation: Ethernet/IP connectivity allows integration with SCADA and BMS platforms without additional gateways.
- OEM Machine Panels: Compact footprint (140 mm wide) and DIN-rail mounting simplify panel layout; LCD display provides on-machine diagnostics without a separate HMI.
- Food & Beverage Lines: Wide operating temperature range and conformal-coat options support washdown-adjacent environments.
- Water Treatment: Modbus RTU on Port 1 enables direct communication with flow meters, analysers, and VFDs from third-party vendors.
Engineering Advantages
- Dual-Port Architecture: Simultaneous RS-232 and Ethernet/IP operation allows local HMI connection on Port 1 while maintaining SCADA/historian connectivity on Port 2 — no communication module required.
- Relay Output Isolation: Each output is individually isolated, eliminating common-ground issues when switching mixed AC/DC loads in the same panel.
- On-Board LCD + Keypad: Operators can monitor tag values, force I/O, and adjust set-points directly on the controller — reducing commissioning time and eliminating the need for a laptop on the floor.
- Battery-Backed RTC: Enables time-stamped data logging and scheduled control routines without an external time-keeping module.
- RSLogix 500 Compatibility: Shares the same programming environment as the SLC 500 and MicroLogix 1000/1200/1400 families — existing engineering teams require zero retraining.
- Expandable to 4 Modules: 1762-series analog, thermocouple, and specialty I/O modules extend capability without replacing the base controller.
System Architecture & Signal Flow
The 1763-L16BBB operates as a standalone controller or as a network node. A typical architecture places the controller on a 24V DC bus, with field devices wired to the screw-terminal I/O block. The RS-232 port connects to a local PanelView or barcode reader via a 1761-CBL-PM02 cable. The RJ-45 Ethernet port connects to a managed switch, enabling MSG instructions to upstream ControlLogix systems, remote I/O monitoring via RSLinx, and OPC-UA data collection for MES/SCADA layers. Expansion modules attach to the right side of the base unit via the 1762-series backplane connector, with the controller automatically detecting module type and I/O map on power-up.
Sourcing & Quality Verification
- Origin: Units sourced from authorised distributors and verified surplus channels; each unit inspected prior to dispatch.
- Firmware: Firmware version confirmed and documented on request; downgrade/upgrade support available.
- Cosmetic Grade: A-grade (new/like-new) unless explicitly listed as refurbished.
- Traceability: Serial number and date code recorded for every shipment; available on request for audit purposes.
- Packaging: Anti-static bag + foam-lined carton; humidity indicator card included for international shipments.
Procurement Process
- Step 1 – Inquiry: Submit your BOM or part number via email to support@konmask.com or WhatsApp +0086 19859288691.
- Step 2 – Quote: Receive a formal quotation with unit price, lead time, and shipping options within 1 business day.
- Step 3 – Order Confirmation: Confirm PO; proforma invoice issued for payment processing.
- Step 4 – Inspection & Dispatch: Unit tested, photographed, and shipped with tracking number provided same day or next business day.
- Step 5 – After-Sales: 90-day warranty on all units; technical support available for integration queries.
Technical FAQ
Q: Can the 1763-L16BBB communicate with third-party HMIs via Modbus TCP?
A: Yes. The Ethernet port supports Modbus TCP as a slave device when configured in RSLogix 500, enabling connectivity with Weintek, Weinview, Siemens, and other Modbus-capable HMIs.
Q: What is the maximum number of I/O points with expansion?
A: With 4 × 1762-series expansion modules (up to 8 points each), total I/O can reach 48 points.
Q: Is the unit compatible with Studio 5000 Logix Designer?
A: Studio 5000 can open MicroLogix 1100 programs in view-only mode. Full programming requires RSLogix 500 v8.0 or later.
Q: What cable is required for RS-232 programming?
A: Rockwell 1761-CBL-PM02 (DB9 to mini-DIN) or a compatible USB-to-serial adapter with the appropriate driver.
Q: Can I replace a MicroLogix 1000 with this unit?
A: Yes, with minor I/O remapping. The 1763-L16BBB uses the same RSLogix 500 environment and similar instruction set; most programs migrate with minimal modification.
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