The Allen-Bradley 1769-L18ER-BB1B is a versatile and high-performance Programmable Automation Controller (PAC) from the CompactLogix 5370 L1 family. This packaged controller combines a 24V DC power supply, a 512KB memory, and 32 embedded I/O points into a single, compact unit. Furthermore, it includes dual Ethernet ports that support Device Level Ring (DLR) topology for enhanced network reliability. Therefore, its design makes it an ideal solution for original equipment manufacturers (OEMs) and end users who need a mid-range controller for machine control, material handling, and process automation applications.
The 1769-L18ER-BB1B offers a balanced mix of digital I/O. Specifically, it provides (16) 24V DC sinking digital inputs and (16) 24V DC sourcing digital outputs. Meanwhile, this embedded I/O supports a wide operating voltage range, making it compatible with various field devices. Moreover, its memory architecture includes 512KB of volatile user memory, which is maintained without a battery. For non-volatile storage, the controller ships with a 1784-SD1 1GB Secure Digital card, allowing you to back up programs and data securely.
Connectivity is a standout feature of this model. For instance, it features (2) Ethernet/IP ports that support 10/100 Mbps speeds. These ports enable linear, star, or ring (DLR) topologies, with DLR offering automatic data re-routing if a cable fails. Additionally, it has a USB port available for quick initial configuration and firmware updates. Besides these, the controller supports up to 8 Ethernet nodes, 256 controller connections, and 120 TCP/IP connections, providing ample capacity for most mid-scale applications.
This CompactLogix controller is built to handle complex logic. First, it supports up to 32 tasks, with a maximum of 100 programs per task, giving you flexibility in organizing your control code. Next, programming is supported via standard IEC 61131-3 languages, including Relay Ladder, Structured Text, Function Block, and Sequential Function Chart. As a result, this versatility allows you to choose the best language for each part of your application, ensuring efficient code development.
The 1769-L18ER-BB1B operates on a nominal 24V DC power supply. Specifically, its current draw at 5V DC is 1A, while at 24V DC it draws a combined total of 3A for all devices drawing field power. Furthermore, it has a power dissipation of 11.5W and includes an internal fuse for short circuit protection. For wiring, it accepts solid or stranded copper wire from 24-16 AWG, with each terminal accepting 1 wire only.
Its compact dimensions of 4.53 x 4.13 x 4.65 inches (115 x 105 x 118 mm) allow it to fit into tight control panels. Furthermore, the unit is designed for DIN rail mounting, which simplifies installation and maintenance. The operating temperature should be between -20 to 60 °C (-4 to 140 °F) with a non-condensing relative humidity between 5 and 95% for optimal performance.
Installing the 1769-L18ER-BB1B is straightforward. For example, you can snap it directly onto a standard DIN rail without needing a backplate. For reliable operation, ensure the environment is clean and within specified temperature ranges. Moreover, you can expand the controller by adding up to (8) 1734 POINT I/O modules directly to its side. Meanwhile, you can integrate the system into a new or existing ControlLogix or CompactLogix network. Use the USB port for the initial program download, and then leverage the Ethernet ports for ongoing communication and data exchange.
(1) Allen-Bradley 1769-L18ER-BB1B CompactLogix Controller
(1) Removable Terminal Block (RTB) – Part Number 1769-RTBN18
(1) 1784-SD1 1GB Secure Digital Memory Card
Documentation and CD (where applicable)
Note: All orders are shipped using reliable courier services, including FedEx, UPS, and DHL.
1. What is the memory size of the 1769-L18ER-BB1B?
This controller comes with a 512KB volatile user memory. Additionally, it includes a 1784-SD1 1GB non-volatile Secure Digital card for program storage and backup.
2. How many I/O modules can be connected to this unit?
The 1769-L18ER-BB1B supports up to (8) 1734 POINT I/O modules directly attached to it. Therefore, it expands its built-in I/O capabilities for larger applications.
3. Does this controller support Device Level Ring (DLR) topology?
Yes, it supports DLR via its dual Ethernet ports. As a result, the network can automatically re-route data if a cable fails, providing fault tolerance and reducing downtime.
4. What communication protocols are supported?
This model supports Ethernet/IP on its dual ports. Additionally, it supports DF1, DH485, and ASCII protocols via its RS232 serial port.
5. What programming languages does this controller support?
The 1769-L18ER-BB1B supports standard IEC 61131-3 languages. Specifically, it supports Relay Ladder, Structured Text, Function Block, and Sequential Function Chart (SFC).
| Brand Name | |
| Model No. | 1769-L18ER-BB1B |
| Product Type | Programmable Automation Controller |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
