Allen-Bradley 1769-L23E-QB1B CompactLogix Controller Module
The Allen-Bradley 1769-L23E-QB1B, also cataloged as the 1769-L23E-QBFC1B CompactLogix Controller Unit, operates as a dedicated hardware component for integrated logic execution, field I/O processing, and Ethernet communication within EtherNet/IP deterministic networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-L23E-QB1B |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 2.55 lbs |
| Dimensions | CompactLogix Standard Package Size |
| Operating Temp | 0 to +60 deg C |
| Power Consumption | 24 VDC Supply (~11 W at full load) |
| User Memory | 512 KB / 1 MB (Model Variant Dependent) |
| Integrated Digital I/O | 16 DI (24 VDC Sink), 16 DO (24 VDC Source) |
| Integrated Analog I/O | 4 AI (Voltage/Current), 2 AO (Voltage/Current) |
| High-Speed Counters | 2 Channels (up to 6 Inputs / 4 Outputs) |
| Communication Ports | EtherNet/IP (2 x RJ-45 DLR support), 1 x RS-232, 1 x USB |
| Local Expansion | Up to 2 local 1769 Compact I/O modules |
| Certifications | CE, UL, cULus, RCM, KC, ODVA EtherNet/IP, ABS, DNV, RINA, LR |
EtherNet/IP Deterministic Networks and Firmware Flash Compatibility
The 1769-L23E-QB1B controller interfaces directly with EtherNet/IP deterministic networks to execute real-time I/O control and node messaging. Dual Ethernet ports support Device Level Ring (DLR) topologies to maintain network uptime during single-point line failures. Firmware flash compatibility allows field update routines via onboard USB or serial connections, maintaining backplane bus communication velocity and I/O density scaling across expanded 1769 Compact I/O racks.
Frequently Asked Questions
Q: Does the 1769-L23E-QB1B require a battery for nonvolatile program retention?
A: No, the controller utilizes internal energy storage mechanisms and an onboard SD card for nonvolatile memory backup without lithium battery reliance.
Q: How many local expansion modules can connect directly to the 1769-L23E-QB1B?
A: The controller supports a maximum of 2 local 1769 Compact I/O modules directly attached to the controller rack assembly.
Field Installation Guidelines
Mount the 1769-L23E-QB1B controller onto a grounded DIN rail or attach it directly to a panel backplate using mounting screws. Ensure the 24 VDC system power supply is turned off before making electrical connections to terminal blocks or backplane buses.
Maintain physical isolation between communication Ethernet lines and high-voltage AC conductors, ensuring a minimum distance of 300 mm. Ground the DIN rail or enclosure frame using heavy-gauge copper bonding jumpers to prevent noise coupling and ensure compliance with industrial EMC standards.
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|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
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| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
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| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
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