Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-L19ER-BB1B |
| Brand | Allen Bradley |
| Product Type | Programmable Controller |
| Product Line | CompactLogix |
| UPC | 887172807770 |
| User Memory | 1 MB |
| Number of Supported Tasks | 32 |
| Programs per Task | Up to 100 |
| Ethernet Ports | 2 |
| USB Ports | 1 |
| Maximum Controller Connections | 256 |
| Maximum Sockets | 32 |
| Embedded Digital Inputs | 16 DC inputs |
| Embedded Digital Outputs | 16 DC outputs |
| Current Draw at 5 VDC | 1 A |
| Maximum Power Dissipation | 11.5 W |
| Weight | 2.00 lb (0.91 kg) |
Controller Processing and Communication
The controller supports up to 32 tasks, with up to 100 programs per task. This structure allows automation logic to be organized into separate execution tasks and programs according to the control application’s requirements. The available 1 MB of user memory defines the storage capacity for controller application data and logic, subject to the platform’s memory allocation rules.
Two Ethernet communication ports support network connectivity, while the USB port provides an additional connection for supported programming and maintenance operations. The maximum of 256 controller connections and 32 sockets describes separate connection-related limits; these figures should not be treated as interchangeable measures of network throughput.
Embedded Digital I/O and Power Requirements
The listed embedded I/O configuration includes 16 digital DC inputs and 16 digital DC outputs. These channels support discrete signal handling without requiring every digital point to come from a separate I/O module. Confirm the electrical characteristics and wiring requirements against the applicable controller documentation before connecting field devices.
The controller draws 1 A at 5 VDC and has a maximum power dissipation rating of 11.5 W. These values describe different electrical characteristics: current draw relates to the specified supply rail, while power dissipation describes heat generated by the device. Use the applicable hardware specifications when evaluating power budgets and enclosure thermal conditions.
Frequently Asked Questions
Q: How many embedded digital I/O points does the 1769-L19ER-BB1B have?
A: The supplied specifications list 16 digital DC inputs and 16 digital DC outputs, for a total of 32 digital points. Verify the input and output electrical ratings before selecting field devices.
Q: What communication interfaces are available?
A: The listed configuration includes two Ethernet communication ports and one USB port. Confirm supported protocols, programming requirements, and network topology in the applicable technical documentation.
Q: What should be checked before replacing an existing controller?
A: Verify the complete catalog number, application memory requirements, communication configuration, embedded I/O requirements, and power budget. Do not assume that a controller with a similar model number has identical hardware or application compatibility.
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