Find a replacement by catalog number
Allen-Bradley 1769 I/O & Controllers
Browse 1769 catalog numbers for I/O modules, network interfaces, power supplies and controllers. This catalog groups parts for model lookup. Compatibility depends on the controller family, expansion architecture, module limits and revision; the 1769 prefix does not establish interchangeability.
Before choosing a replacement
Identify the controller and expansion system
1769-L18ERM-BB1B uses POINT Bus expansion. Other controllers in this list have different expansion limits, memory, motion and safety capabilities. Check the exact controller specifications and required firmware before ordering.
Match the electrical signal
Digital, relay, analog, RTD and thermocouple modules serve different signals. For example, 1769-IR6 is for RTD/resistance inputs and 1769-IT6 is for thermocouple/millivolt inputs. Confirm channel count, signal range and isolation requirements.
Distinguish power and network roles
1769-PA2 and 1769-PA4 accept AC power; 1769-PB2 accepts 24 V DC. 1769-AENTR is an EtherNet/IP adapter, 1769-ADN is a DeviceNet adapter, and 1769-SDN is a DeviceNet scanner. Include the full number and installed system details.
Manufacturer reference: Rockwell Automation Compact I/O overview. Model specifications and their manufacturer sources are linked on each product page. Reviewed 2026-09-12.
1769 I/O & Controllers model list
1 documented model. Select a model for specifications and a quote request.
1769-L33ER
Allen-Bradley 1769-L33ER CompactLogix 5370 L3 Controller
What to include in your enquiry
Send the complete catalog number, quantity, destination, acceptable condition and required delivery date. Include the required hardware series, firmware and accessories if these matter to your installation. Condition, actual unit photos, test information, price and dispatch timing are confirmed for the quoted unit.
Read the used PLC parts buying guideWhat we verify before a quote
Actual photos when available
Nameplate, condition, and visible wear can be shared before quote when stock photos are not enough.
Test notes for used units
Power-on or function test status is stated when available, with clear condition grading.
Trackable global shipping
DHL, FedEx, UPS, or forwarder options can be quoted with packing photos and tracking details.
Clear DOA boundary
For tested units, quote terms can include 7-day DOA support unless otherwise stated.
Request 1769 I/O & Controllers parts
Send one model or a parts list with your requirements. Pricing and current supply details are confirmed on the quote.