Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-L19ER-BB1B |
| Spare Model | 1769L19ERBB1B |
| Brand | Allen-Bradley |
| Product Type | CompactLogix Controller |
| User Memory | 1 MB |
| Built-in Communication | 2 Ethernet ports; 1 USB port |
| Ethernet Data Rate | 10/100 Mbps |
| Supported Network Topologies | Linear; Device Level Ring (DLR) |
| Embedded I/O Options | 16 digital DC inputs; 16 digital DC outputs |
| Current Draw at 5 VDC | 1 A |
| Maximum Power Dissipation | 11.5 W |
| Replacement Terminal Block Part Number | 1769-RTBN18 |
| Wire Type | Copper, 90 deg C |
| Weight | 0.75 kg |
| Estimated Shipping Dimensions | 19.5 x 13.5 x 11 cm |
| Country of Origin | USA |
Ethernet Communication and Network Topology
The two Ethernet ports support 10/100 Mbps communication and allow the controller to connect with compatible devices on an industrial Ethernet network. Linear topology supports sequential device connections, while Device Level Ring (DLR) provides a ring-based network arrangement for supported devices. Network design should account for the capabilities of the connected equipment and the intended topology.
Memory, I/O, and Power Requirements
The controller provides 1 MB of user memory for control application storage. Its listed embedded I/O options include 16 digital DC inputs and 16 digital DC outputs, allowing digital field signals to be incorporated into the control configuration where supported.
The specified 5 VDC current draw is 1 A, and maximum power dissipation is 11.5 W. These values describe different electrical characteristics and should not be treated as interchangeable power ratings.
Terminal Block and Wiring
The listed replacement terminal block part number is 1769-RTBN18. The supplied wiring specification identifies copper conductors rated for 90 deg C. Verify terminal compatibility, conductor sizing, and the applicable installation requirements before replacing wiring or terminal components.
Frequently Asked Questions
Q: What communication interfaces does the 1769-L19ER-BB1B provide?
A: It has two Ethernet ports supporting 10/100 Mbps communication and one USB port. The Ethernet network can use linear or DLR topology, subject to the capabilities of the connected network devices.
Q: What memory and digital I/O configuration does this controller support?
A: The listed specifications identify 1 MB of user memory and embedded I/O options of 16 digital DC inputs and 16 digital DC outputs. Confirm the exact hardware configuration before using these I/O counts for project design or replacement selection.
Q: Which replacement terminal block is listed for the 1769-L19ER-BB1B?
A: The supplied replacement part number is 1769-RTBN18. Confirm the terminal block’s compatibility with the installed controller and existing wiring before ordering.
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