Allen-Bradley MicroLogix 1100: Replacement & Cross-Reference

The Allen-Bradley MicroLogix 1100 (1763-L16 series) is a legacy micro-PLC that Rockwell Automation has discontinued. The recommended modern replacement is the Micro820 (2080-LC20) for a similar-size upgrade, or the Micro850 (2080-LC50) where more I/O or expansion is needed. If you need to keep an existing machine running without converting the program, Edmundson Industrial sources new-surplus, used-tested, and reconditioned MicroLogix 1100 controllers.

Status

Brand	Allen-Bradley / Rockwell Automation
Family	MicroLogix 1100
Common catalog numbers	1763-L16BWA, 1763-L16AWA, 1763-L16BBB, 1763-L16DWD
Lifecycle	Discontinued / end-of-life: verify current Rockwell status at quote
Programming	RSLogix 500 / RSLogix Micro (legacy)

Cross-Reference

If you have (obsolete)	Recommended path	Notes
MicroLogix 1100 (1763-L16…)	Micro820 (2080-LC20)	Closest size-for-size modern controller. Program converts to Connected Components Workbench: plan rewrite and checkout time.
MicroLogix 1100, expanding I/O	Micro850 (2080-LC50)	More I/O and expansion headroom; same CCW programming environment.
Keep the program: no re-engineering	New-surplus / used-tested MicroLogix 1100 (we source)	Keeps the installed program. Match the catalog suffix exactly: power and I/O type differ by suffix (see specs).
Related legacy MicroLogix (1000 / 1200 / 1400 / 1500)	Micro800-series by size, or surplus like-for-like	Whole family is retired; same logic applies. We source all of them.

Cross-references are starting points: confirm I/O count and type, supply voltage, and program compatibility before substituting. We'll verify on request.

Key Specs (MicroLogix 1100 base)

16 I/O points base: 10 digital inputs / 6 digital outputs, plus 2 embedded analog inputs
Expandable with up to four 1762 expansion I/O modules
Embedded EtherNet/IP port plus RS-232/RS-485 combo port
Built-in LCD display; supports online editing
Suffix decode: BWA = 120/240VAC supply, relay outputs · AWA = AC supply, AC in/relay out · BBB = 24VDC supply, DC in, mixed relay/FET out · DWD = 12/24VDC variant: confirm your suffix on the nameplate

Is the MicroLogix 1100 still made?

No. Rockwell has discontinued the entire MicroLogix family, the 1100 included. Its huge installed base on OEM equipment and small machines means replacement demand keeps climbing as units age out. The practical playbook: keep a surplus spare on the shelf for any 1100 running a critical machine, and schedule Micro800 migrations at planned rebuilds: not at 2am after a failure.

FAQ

Is the MicroLogix 1100 still being made?

No: Rockwell has discontinued the MicroLogix family. Units are available through surplus and used/reconditioned channels like Edmundson Industrial.

What replaces the MicroLogix 1100?

The Micro820 (2080-LC20) is the closest modern controller; the Micro850 fits where you're growing I/O. Both require converting the program from RSLogix 500/Micro to Connected Components Workbench.

Can I still buy a new MicroLogix 1100?

Yes: new-surplus units still exist. We supply new-surplus, used-tested, and reconditioned 1763 controllers without requiring an immediate migration.

Does the catalog suffix matter?

Yes: BWA, AWA, BBB, and DWD differ in supply voltage and I/O type. An exact suffix match is a drop-in; a different suffix means wiring changes. Send your full catalog number and we'll match it.

Do I have to rewrite my program to upgrade?

Yes. Moving to Micro800 means converting from RSLogix 500/Micro to Connected Components Workbench. Many plants keep a surplus 1100 on the shelf to defer that work until a planned upgrade.

Availability & Quote

Condition disclosed before sale, new-surplus, used-tested, or reconditioned, with photos on request.

Request a Quote

or send your catalog number to sales@edmundsonindustrial.com · (832) 975-8827 · Houston, TX. Response timing is confirmed with the request.

Related Allen-Bradley legacy pages

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