Danfoss MCX15B2 - MCX20B2 Programmable Controller Data Sheet
Summary
Elevate your industrial control solutions with this advanced programmable controller series. Designed for system integrators and engineers managing complex automation needs, these robust controllers feature enhanced processing power and extensive I/O capacity. Key features include multiple communication interfaces such as CANbus, dual Modbus RS485, Gigabit Ethernet, and a built-in web server, all supported by an ultra-wide voltage supply (24–265V AC). The comprehensive documentation provides detailed technical specifications, guides on I/O configuration, compliance standards, and wiring requirements necessary for reliable implementation in varied industrial environments.
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Data sheet
MCX15B2/MCX20B2 Programmable controller
MCX15B2/MCX20B2 is an electronic controller that stands on the top of the MCX range, thanks to the large number of its inputs and outputs, the enhanced CPU capabilities and connectivity features. It holds all the typical functionalities of MCX controllers: • programmability • connection to the CANbus local network • up to two Modbus RS485 serial interfaces with galvanic isolation.
Furthermore, it is fitted with an ultra wide range (24/110/230 Vac) power supply in the same product variant, with USB and Ethernet connection for embedded Web server and IP protocols management. It is available in several models, with or without graphic LCD display and with 15 or 20 digital output.
Features MCX20B2 • Remote access to data through CANbus
• 16 analog and 22 digital inputs connection for additional display and keyboard • 6 analog and 20 digital outputs • RTC clock for managing weekly time programs and data logging information with
MCX15B2:
supercapacitor as temporary backup power
• 10 analog and 22 digital inputs
• Up to two Modbus RS485 opto-isolated serial
• 6 analog and 15 digital outputs
interface • Available with and without graphic LCD display
• Ultra wide range power supply from 24 V AC to
• Dimensions 16 DIN modules
230V AC • USB connector for easy software upload and datalogging • Ethernet with Web server feature and several IP protocols
MYK connection USBEthernet Modbus RS485
© Danfoss | DCS (vt) | 2020.02 AI320818679084en-000201 | 1
Page Summary Contents For Danfoss MCX15B2 - MCX20B2 Programmable Controller Data Sheet
Manual Details
| Brand | Danfoss |
|---|---|
| Pages | 8 |
| File Size | 903.97 KB |
| Published | June 05, 2026 |
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Frequently Asked Questions
What is the usable voltage range for power supply?
The product supports a wide power input range of 21 – 265 V AC, 50/60 Hz, or 40-230 V DC.
How many I/O points are available on the MCX20B2 model?
It features up to 16 analog inputs and a total of 22 digital inputs and outputs (mixing is possible depending on specific variant).
Is there remote data access capability?
Yes, the MCX20B2 allows remote data access through the CANbus connection for an additional display and keyboard.
What kind of backup power does the system offer?
Both models are equipped with a supercapacitor as temporary backup power.