36-channel Micro PLC Relay
- Compact 36-channel Micro PLC with relay output design — ideal for controlling AC and DC loads across small to mid-scale automation applications
- Features 16 digital inputs, 16 relay digital outputs, 2 analog inputs, and 2 analog outputs — all built-in
- Supports both Ethernet and serial communication with onboard Real-Time Clock (RTC) and PID Auto-Tuning
- Relay output type supports both 24 VDC and 220 VAC loads — versatile for mixed-voltage environments
- Certified to CE, UL (cULus), and RoHS standards; well-suited for OEM machine builders and relay-based control applications
Overview
- The Allen-Bradley / Rockwell Automation 1766-L32AWAA is a 36-channel Micro PLC with relay output architecture, delivering robust and dependable programmable control in a compact, DIN-rail mountable form factor
- Designed as a cost-effective “smart relay” replacement for applications requiring both AC and DC output switching, without the complexity or cost of a larger control system
- Ideal for machine builders, OEM integrators, and facilities engineers seeking proven Rockwell Automation reliability at a compact scale
I/O Capabilities
- 16 Digital Inputs supporting both Sink (NPN) and Source (PNP) wiring configurations, rated at 24 VDC
- 16 Relay Digital Outputs capable of switching 24 VDC or 220 VAC loads — 2A per point, 5A per common
- Relay output isolation provides inherent electrical separation between the controller and field devices
- 2 Analog Inputs supporting voltage (0–10V, 1–10V, 0–5V, 1–5V) and current (0–20mA, 4–20mA) signal types
- 2 Analog Outputs configurable for voltage (0–10V) or current (4–20mA) output
- Total of 36 I/O channels onboard — no expansion module required for standard applications
Communication & Connectivity
- 10/100 Base-T Ethernet port for network integration and remote programming
- RS-232 and RS-422/RS-485 serial ports for connecting to legacy devices and third-party equipment
- USB 2.0 (Mini-B) port for local programming, project uploads, and firmware management
Control & Processing Performance
- Fast scan cycle execution at 300ns per step for deterministic, real-time machine control
- 10K STEP program memory to accommodate comprehensive control logic
- Real-Time Clock (RTC) for scheduled operations, event logging, and time-stamped data
- PID control with Auto-Tuning for precise regulation of temperature, pressure, flow, and other process variables
- 2 High-Speed Counter (HSC) inputs rated up to 20 kHz — suitable for encoder feedback, flow metering, and pulse counting applications
- Note: Pulse Train Output (PTO) / positioning control is not available on this relay output model
Programming & Software
- Supports all major IEC 61131-3 programming languages: Ladder Diagram (LD), Instruction List (IL), Function Block Diagram (FBD), and Sequential Function Chart (SFC)
- Compatible with Rockwell Automation Studio 5000 Logix Designer or equivalent configuration environments
- Full offline simulation capability allows program development and testing before connecting to physical hardware
Mechanical & Environmental
- Compact dimensions: 93 x 135 x 75 mm (3.7 x 5.3 x 3.0 in), weight 415g
- Operating temperature range: 10°C to 55°C (14°F to 131°F)
- Storage temperature: –25°C to 80°C
- Humidity: 5–95% non-condensing
- Shock resistance: 15G; Vibration: 0.5G continuous, 1G discontinuous
- ESD immunity: ±4 kV contact discharge, ±8 kV air discharge
- Surge transient immunity: 2 kV on CPU, power, and digital I/O lines
Power Requirements
- Input: 24 VDC
- Power consumption: 9.60W (0.40A at 24 VDC)
Certifications & Compliance
- CE Certified
- UL Listed (cULus)
- RoHS Compliant
- IC Certified
What’s in the Box
- 1 x Allen-Bradley 1766-L32AWAA Micro Relay PLC unit
- User Manual
