2080-LC20-20QBB — Micro820 20-Point Compact Controller, DC Power, Ethernet

The 2080-LC20-20QBB is a 20-point brick-style controller from the Micro820 family, combining 12 digital 24V DC inputs (4 of which double as configurable analog channels), 7 sourcing DC outputs, and 1 relay output in a single compact unit. It includes an embedded Ethernet port, a non-isolated RS-232/485 serial combo port, a microSD card slot for program backup and data logging, and two plug-in slots for additional capability.

Specifications

Parameter	Value
Part Number	2080-LC20-20QBB
Family	Micro820
Digital Inputs	12 × 24V DC (4 configurable as analog, 0–10V)
Outputs	7 × 24V DC sourcing + 1 × relay
Communication	Embedded Ethernet, RS-232/485 combo (non-isolated)
Plug-In Slots	2
Storage	microSD card slot (backup, restore, data logging)
Embedded RTC	Yes
Power Input	24V DC (20.4–26.4V)
Power Dissipation	6 W
Terminal Block	Fixed (removable variant available with "R" suffix)
Operating Temperature	−20°C to 65°C

Twenty Points With a Flexible Input Arrangement

The shared digital/analog input architecture on four of the twelve input channels gives this controller real adaptability without forcing the application designer to commit to a fixed split at order time — those four channels can read standard 24V DC discrete signals or 0–10V analog signals depending on what the specific installation needs, configured in software through Connected Components Workbench rather than locked in by hardware. For applications needing temperature sensing via thermistor, the controller provides an auxiliary voltage reference specifically suited to that use case on the analog-capable channels.

The microSD card slot adds practical field-service value beyond simple data logging — a technician can swap a failed controller and restore its complete program from the card without a laptop or network connection, which matters for remote or hard-to-access installations where bringing a full programming setup on-site isn't always convenient.

FAQ

Q: Can the four shared analog/digital inputs be used as standard digital inputs if analog capability isn't needed?

Yes. These channels are configurable in software — if the application has no analog requirement, they function as standard 24V DC digital inputs without any compromise.

Q: Is the I/O expandable beyond the onboard 20 points?

Yes, through the two plug-in slots, which accept compatible plug-in I/O, communication, or specialty modules to extend the controller's capability without a full platform change.

Q: What's the difference between this controller and the "R" suffix variant in the same family?

The "R" suffix indicates a removable terminal block rather than the fixed terminal block on this model — functionally identical otherwise, with the removable version allowing the controller body to be swapped without disturbing field wiring.

Q: Can the program be transferred via the microSD card without a PC connection at the controller?

Yes. The microSD slot supports backup and restore operations directly, allowing a program to be copied to a new controller in the field using just the card, without needing Connected Components Workbench running on a connected laptop at that moment.

2080-LC20-20QBB New Original Ser.C Micro820 20 I/O Controller 2080LC2020QBB