

The Allen-Bradley CompactLogix 1769-L31 Dual Serial Port Controller is a versatile and powerful automation engine designed for demanding manufacturing environments. This controller integrates seamlessly into the CompactLogix platform, offering dual serial communication ports (configurable as RS-232 or RS-485) to interface with a wide range of peripheral devices, including operator interfaces, variable frequency drives, and legacy serial-based sensors. With its compact form factor and support for up to 16 local I/O modules, the 1769-L31 is an excellent choice for medium-scale control systems where space is at a premium. It supports both standard and high-speed backplane communication, and can be expanded using network bridges for remote I/O. The controller's 512KB of user memory and built-in motion control instructions make it suitable for applications requiring coordinated motion, process control, and sequential logic. Whether used in standalone or networked configurations, the 1769-L31 provides the reliability and flexibility expected from Rockwell Automation's CompactLogix family.
| Specification | Details |
|---|---|
| Product Series | CompactLogix |
| Model Number | 1769-L31 |
| Processor Type | Dual Serial Port Controller |
| Communication Ports | 2 (RS-232 / RS-485 configurable) |
| User Memory | 512 KB (for logic and data) |
| Local I/O Capacity | Up to 16 modules (1769 series) |
| Backplane Current | 1.2 A Standard Models 5V DC; 0.8 A Standard Models 24V DC (typical) |
| Power Supply | 24V DC (external, via 1769-PA2 or similar) |
| Network Support | ControlNet, EtherNet/IP (via bridging modules) |
| Motion Control | Supports up to 4 axes (via integrated motion instructions) |
| Logic Execution Rate | 0.1 ms per basic instruction |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Relative Humidity | 5% to 95% (non-condensing) |
| Shock Rating | 30 g (operational), 50 g (non-operational) |
| Vibration Rating | 2 g Standard Models 10-500 Hz |
| Enclosure Type | Open-style (requires panel or cabinet) |
| Weight | Approximately 0.45 kg (1.0 lb) |
| Compatible Software | RSLogix 5000 (version 16 or later) / Studio 5000 |
| Certifications | UL, cUL, CE, C-Tick |

What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22