Technical Data · Publication 2080-TD001 · Rockwell Automation

Micro800 Programmable Controllers — Technical Data (2080-TD001)

Specifications and catalog data for the Allen-Bradley Micro800 family of programmable controllers (Bulletin 2080). Covers Micro810 12-point smart relay, Micro820 20-point controllers with embedded Ethernet, Micro850 24/48-point expandable controllers, and Micro870 24-point controllers with extended memory, DNP3 support, and PTO motion.

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2080-TD001 Publication
2080 Bulletin
12 I/O points (base)
12 Max digital I/O with expansion

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Specifications

Performance & Memory

Micro810 (2080-LC10) capacity 12 I/O points, 2 K program steps, 2 KB data — smart-relay class
Micro820 (2080-LC20 / L20E) capacity 20 I/O points, 10 K program steps, 20 KB data; up to 2 plug-in modules; max digital I/O 35
Micro850 (2080-L50E) capacity 24 or 48 I/O points, 10 K program steps, 20 KB data; up to 5 plug-ins + 4 expansion modules (Bulletin 2085); max digital I/O 132 (24-pt) or 192 (48-pt)
Micro870 (2080-L70E) capacity 24 I/O points, 20 K program steps, 40 KB data; up to 3 plug-ins + 8 expansion modules; max digital I/O 304
Scan time, basic instruction 2.5 µs/instruction (Micro810) · 0.30 µs/instruction (Micro820/850/870)
Minimum scan/cycle time <0.25 ms (M810/M850/M870); <2 ms on 2080-L20E, <4 ms on 2080-LC20
Embedded HSC (high-speed counter) Up to 6 HSC channels with 9 operation modes (Micro850 and Micro870 DC-input models)
PTO / PWM motion Supported on Micro850/Micro870 models ending -BB or -VB (up to 100 kHz, 3 axes on 48-pt Micro850)

Communication

Embedded Ethernet 10/100 Base-T RJ45 on Micro850 (2080-L50E), Micro870 (2080-L70E), and Micro820 (2080-L20E, FW 23.011+)
Embedded serial port Non-isolated RS-232 / RS-485 combo on Micro820, Micro850, Micro870; CIP Serial / DF1, Modbus RTU Master/Slave, ASCII/Binary, DNP3 (870 only)
EtherNet/IP Class 1 implicit messaging on Micro820 (FW 23.011+), Micro850, Micro870; up to 4 nodes on Micro820, 8 nodes on Micro850/870
Modbus TCP and Modbus RTU Master or Slave on Micro820/850/870 Ethernet; Master/Slave over RS-232/485 on all L20E/L50E/L70E controllers
DNP3 Supported on Micro870 2080-L70E-…N catalog numbers (SAV2 and SAV5)
USB programming port USB 2.0 Type B on Micro850/870; USB-C on 2080-L20E (non-isolated); Micro810 uses external 2080-USBADAPTER
Kinetix 5100 / PowerFlex 520 integrated drive support Predefined EtherNet/IP instruction tags on Micro820 (FW 23.011+), Micro850, Micro870 (FW 21.011+)

Electrical & Environmental

Power supply, Micro810 120/240V AC (12AWA), 24V DC (12QWB), 12V DC Class 2 (12DWD), 12/24V DC Class 2 (12QBB); 3-5 W consumption
Power supply, Micro820/850/870 24V DC Class 2 (20.4-26.4V DC); 6-11 W without plug-ins/expansion, up to 28-33 W fully loaded (Micro850/870)
I/O rating (digital output) 24V DC, 1 A/point at 30°C derating to 0.3 A/point at 65°C; relay outputs 2 A @ 240V AC or 1 A @ 24V DC
Relay output life 10,000,000 cycles mechanical; 100,000 cycles electrical at rated load
Operating temperature 0 to +55°C (Micro810) · -20 to +65°C (Micro820, 850, 870)
Non-operating / storage temperature -40 to +85°C (all Micro800 controllers)
Relative humidity 5-95% non-condensing
Vibration / shock (operating) 2 g @ 10-500 Hz; 30 g shock (M810) or 25 g shock (M820/850/870)
ESD / RF immunity 6 kV contact / 8 kV air; 10 V/m 80-6000 MHz radiated RF
Enclosure rating None (open-style); DIN-rail or panel-mount

Catalog Number Format

How to read an Allen-Bradley 2080 catalog number. Each position encodes a specific configuration attribute.

Position
Meaning
Example
2080
Bulletin prefix for Micro800 family
2080-LC50E-24QWB → Bulletin 2080
-LC10 / -LC20 / -L20E / -L50E / -L70E
Base unit and class. LC10=Micro810, LC20=Micro820 (no Ethernet), L20E=Micro820 enhanced comms (embedded Ethernet + USB-C), L50E=Micro850 enhanced comms, L70E=Micro870 enhanced comms
L50E = Micro850 with Ethernet; LC20 = Micro820 without Ethernet
I/O count digits
Number of I/O points on the base unit (10, 12, 16, 20, 24, 48)
LC20-20 = 20 total points (12 inputs + 8 outputs); L50E-48 = 48 points (28 in + 20 out)
Input type (A / Q / D)
Input voltage class. A=110V or 110/220V AC, Q=24V AC/DC, D=12V DC
A = 120V AC input; Q = 24V DC input
Output type (W / B / V)
Output circuit class. W=relay, B=24V DC source (PNP), V=24V DC sink (NPN)
WB = relay + 24V DC source mixed; QBB = 24V DC input + 24V DC source output
Power supply (A / B / D)
Control-power class. A=120/240V AC (Micro810 only), B=24V DC, D=12V DC (Micro810 only)
B = 24V DC supply; AWA = AC input + AC supply (Micro810)
Specialty suffix (N / K / R)
N=DNP3 support (Micro870 only), K=conformal coated, R=Removable Terminal Block (Micro820 only)
L70E-24QWBN = Micro870 + DNP3; L50E-48QWBK = Micro850 + conformal coat

Communication Protocols

Supported industrial networks and field buses for the products covered by this publication.

EtherNet/IP Class 1 implicit + Class 3 explicit messaging; Micro850/870 support up to 8 nodes, Micro820 up to 4 nodes (FW 23.011+) Modbus TCP Master or Slave over embedded Ethernet on all L20E/L50E/L70E controllers Modbus RTU (RS-232 / RS-485) Master or Slave via embedded serial port on Micro820/850/870, or via 2080-SERIALISOL plug-in DNP3 Outstation support on Micro870 -N suffix catalog numbers (SAV2 and SAV5 profiles) CIP Serial / DF1 Full-duplex, Half-duplex, and Radio Modem on 2080-LxxE; PCCC command format supported on Micro850 (FW 23.011+) and Micro870 (FW 22.011+) for MicroLogix legacy migration ASCII / Binary Custom protocol support over serial on Micro820/850/870 USB programming USB 2.0 Type B on Micro850/870; USB-C on Micro820 (2080-L20E); Connected Components Workbench is the single programming tool across the family

Certifications & Compliance

c-UL-us Listed Industrial Control Equipment (UL File E322657) UL Listed Class I Division 2 Groups A, B, C, D Hazardous Locations (UL File E334470) CE marked per EU EMC Directive (EN 61326-1, EN 61000-6-2, EN 61000-6-4, EN 61131-2) CE marked per EU Low Voltage Directive (EN 61131-2) EU RoHS compliant (EN IEC 63000) RCM (Australia / New Zealand — EN 61000-6-4) KC (Korea — Radio Waves Act, Clause 58-2) Morocco (Arrêté ministériel 6404-15 / 6404-16) UKCA (2016 No. 1091 EMC, No. 1101 Electrical Safety, No. 3032 RoHS) ODVA EtherNet/IP conformance (Micro820, Micro850, Micro870 only)

Document Contents

Full PDF covers the following topics in detail:

  • Micro800 family overview and positioning: Micro810 smart relay → Micro820 standalone → Micro850 expandable → Micro870 high-memory
  • Catalog-number breakdown with input/output/supply/specialty suffix decoder
  • Feature comparison table (embedded ports, digital I/O points, analog channels, plug-in slots, expansion support, Ethernet nodes, scan time)
  • Programming comparison: program steps, data bytes, IEC 61131-3 language support (ladder, FBD, ST), floating-point, PID, UDFBs
  • Per-controller electrical specifications: input/output ratings, isolation voltage, AC/DC filter settings, relay contact tables with make/break and VA ratings
  • Analog I/O specs: 10-bit on Micro810/820 embedded, 14-bit ±0.1% on Micro850/870 expansion modules; TC/RTD accuracy
  • Environmental specifications: temperature, humidity, vibration, shock, EMC immunity (IEC 61000-4-2 through -4-8)
  • Certifications: c-UL-us, UL Class I Div 2, CE EMC/LVD, RCM, KC, Morocco, UKCA, ODVA
  • Bulletin 2085 expansion I/O module catalog (2085-IQ16/IQ32T, OV16/OB16, IF4/IF8, OF4, IRT4, IM8, IA8, OA8, OW8/OW16, EP24VDC, ECR/ECRK terminator)
  • Plug-in module catalog (2080-IQ4/OB4/OV4 digital, IF2/OF2 analog, RTD2/TC2 temperature, MEMBAK-RTC backup, TRIMPOT6, MOT-HSC, DNET20 DeviceNet scanner, SERIALISOL)
  • Accessories: 2080-LCD / 2080-REMLCD display modules, 2080-USBADAPTER, 2080-PS120-240VAC, 2080-PSAC-12W, 2080-SD memory card
  • PTO/PWM duty-cycle performance tables and data-log write-time benchmarks

Frequently Asked Questions

What's the practical difference between Micro810, Micro820, Micro850, and Micro870?
Micro810 (2080-LC10) is a 12-point smart relay with high-current relay outputs (8 A on two points) and a built-in 1.5-inch LCD — positioned against smart relays, not full PLCs. Micro820 (2080-LC20 / L20E) adds 20 points, embedded Ethernet (on L20E), microSD logging, and remote LCD support — designed for small standalone machines and remote automation. Micro850 (2080-L50E) scales to 24 or 48 base points with 4 expansion I/O modules (up to 132 or 192 I/O), embedded 10/100 Ethernet, and PTO motion. Micro870 (2080-L70E) offers 24 base points but doubles the program memory to 20 K steps / 40 KB and adds 8 expansion modules (up to 304 I/O) plus DNP3 support on -N variants — positioned for larger standalone machines and water/wastewater remote telemetry.
Which Micro800 controllers support motion (PTO / PWM)?
PTO (Pulse Train Output) is supported only on Micro850 and Micro870 catalog numbers ending in BB or VB — specifically 2080-L50E-24QBB, L50E-24QVB, L50E-48QBB, L50E-48QVB (2-3 PTO axes), and 2080-L70E-24QBB, L70E-24QBBK, L70E-24QBBN (2 PTO axes). Frequencies up to 100 kHz are supported with programmable duty-cycle. Micro810 and Micro820 do not support PTO; Ethernet-based motion with Kinetix 5100 uses EtherNet/IP from Micro850/870 firmware 21.011+ (Micro820 from 23.011+).
Does the Micro820 have embedded Ethernet?
Only the 2080-L20E-xxx catalog numbers have embedded Ethernet and USB-C (FW 23.011+ supports Class 1 EtherNet/IP with up to 4 nodes, plus Modbus TCP). The older 2080-LC20-xxx catalog numbers are serial-only (RS-232/485 combo port, USB programming via 2080-USBADAPTER or the remote LCD). Both variants still share the same plug-in-module ecosystem.
What programming software does the Micro800 family use?
Connected Components Workbench (CCW) — free-tier software that covers all four Micro800 controllers. Languages: Ladder Diagram, Function Block Diagram, and Structured Text per IEC 61131-3, plus User-Defined Function Blocks. Minimum CCW version: v20 for Micro810/820/850/870, v22 for Micro870 PCCC-format DF1, v23 for Micro820 (2080-L20E) and Micro850 PCCC support and the 2080-REMLCD remote display.
Can Micro800 expansion I/O (Bulletin 2085) be used on a Micro820?
No. Bulletin 2085 expansion I/O is supported only on Micro850 (up to 4 modules) and Micro870 (up to 8 modules). Micro810 and Micro820 have no expansion-I/O support — they can only be extended with Micro800 plug-in modules (2080-IQ4, 2080-OB4, 2080-IF2, 2080-MEMBAK-RTC, etc.), up to 2 slots on Micro820.
Is the Micro800 family rated for Class I Division 2 hazardous locations?
Yes. All Micro800 controllers (Micro810, Micro820, Micro850, Micro870) are UL-listed for Class I, Division 2, Groups A, B, C, and D (UL File E334470). CE EMC/LVD, UKCA, RCM, KC, and Morocco certifications cover standard industrial use; EtherNet/IP ODVA conformance applies to Micro820, Micro850, and Micro870 only (Micro810 has no Ethernet).

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