Allen-Bradley / Micro800

Every Micro800 controller, plug-in and expansion module. The number decodes, and the LC versus L50E distinction is the one that matters.

Micro800 is the Allen-Bradley small controller family, the tier below CompactLogix and the successor to MicroLogix. Current production, so these are supply jobs quoted with a delivered lead time.

How to read a Micro800 number

Take 2080-LC50-48QWB.

LC versus L50E is the important one. A number reading 2080-LC50 has no embedded Ethernet. A number reading 2080-L50E does. Same family, same point count, different part. If your application talks over EtherNet/IP you need the E version.

A trailing K indicates conformal coating. A trailing N appears on some Micro870 variants.

The families

Micro820 controllers

Micro830 controllers

Micro850 controllers

Micro870 controllers

Plug-in modules, the 2080 range

Plug-ins mount into the controller face and do not take a slot on the expansion bus.

Expansion I/O, the 2085 range

For Micro850 and Micro870 only. The Micro820 and Micro830 do not take expansion I/O.

The 2085-ECR bus terminator is the part people forget. Like the ET 200SP server module or a CompactLogix end cap, it terminates the expansion bus and is not optional.

Accessories

Firmware revisions that unlock features

Worth checking before you buy a used controller.

Firmware 21.011 or later: Micro850 and Micro870 support Kinetix 5100 and PowerFlex 520-series drives over a Class 1 EtherNet/IP connection with predefined instructions and tags, plus generic profile tags for other devices.

Firmware 23.011 or later: Micro850 and Micro870 support the 2080-REMLCD remote LCD module. Micro820 gains Class 1 EtherNet/IP connection to Kinetix 5100 and PowerFlex 520-series drives.

If you are pairing a Micro800 with a PowerFlex 525 and expecting the predefined tags, the firmware level decides whether you get them.

Counting your I/O correctly

A detail from the Rockwell selection guide that catches people at quoting stage.

For Micro820 and Micro830, the maximum digital I/O figure assumes 8-point digital plug-ins such as the 2080-IQ4OB4 are fitted in every available plug-in slot. If you fit 4-point plug-ins you get less.

For Micro850 and Micro870, the maximum includes the base unit, plug-ins and expansion I/O combined.

So the headline point count is a best case, not a given. Send us your actual I/O list and we will work out what you need.

Programming software

Micro800 is programmed in Connected Components Workbench, not Studio 5000. Different software from the Logix family. If you are moving from MicroLogix, note that RSLogix 500 programs do not transfer.

What we can supply

The full current range: controllers, plug-ins, expansion I/O, terminators, power supplies and accessories, quoted with a delivered lead time. Surplus and used where a discontinued variant is needed.

Related

MicroLogix, the predecessor. CompactLogix, the tier above. PowerFlex and Kinetix for the drives these controllers talk to.

Send us your catalogue numbers

For a replacement, send the full number and tell us whether you need Ethernet. For a new machine, send the I/O list and we will specify controller, plug-ins, expansion modules and terminator as a complete system. Quotes in NZD including GST.

Request a quote

Industech is an independent supplier of new, surplus and used industrial automation equipment. We are not an authorised distributor of, approved by, sanctioned by, or affiliated with Rockwell Automation, Inc. Allen-Bradley, Micro800, Micro820, Micro830, Micro850, Micro870, Kinetix and PowerFlex are trademarks of Rockwell Automation. All trademarks, brand names and catalogue numbers are the property of their respective owners and are used here for identification purposes only.