The embedded network specialist

Embedded BACnet/IP slave interface

Anybus CompactCom M40 BACnet/IP plug-in module

The Anybus CompactCom M40 for bacnet.png is a complete embedded Industrial Ethernet communication plug-in modul which enables your products to communicate on an bacnet.png network. The module acts as a bacnet.png slave interface and supports fast communication speeds, making it suitable also for high-end industrial devices.
Anybus CompactCom M40 - bacnet.png
Primary network
Anybus CompactCom M40 - bacnet.png
Anybus CompactCom M40 - bacnet.png

Interchangeable with other networks

By implementing the CompactCom concept into your product line, you will have instant embedded access to any other industrial network by simply plugging in another Anybus module .

Get real-time bacnet.png communication

The Anybus CompactCom M40 enables fast communication between your device and the bacnet.png network. The module supports generic device profiles and comes with a dual port switch implemented in the network processor — the award-winning Anybus NP40. With its fast data transfer and very low latency, it's the perfect match for even the most demanding industrial applications used within Building Automation.

Features and benefits

  • A complete, interchangeable embedded bacnet.png slave interface plug-in module with connectors
  • Pre-certified overeenkomstig BACnet/IP, versie 1.14 for network compliance (enables faster network certification)
  • Fast data transfer: Up to 1448 bytes of process data in each direction, Up to 1500 bytes of explicit messaging
  • Very low latency
  • Event-based interface method enables easy access to input and output data at any time
  • Fast, event-based application hardware interfaces: 8/16-bit parallel and highspeed SPI. I/O (shift register interface) is also available
  • Solid security: Mandatory software signatures prevent unauthorized software to be downloaded to the module. Furthermore, encryption is used to prevent illicit copying
  • Short in-design with free assistance from Twincomm and HMS ensures a fast time to market

bacnet.png Slave Interface

  • Full Support for B-ASC (BACnet Application Specific Controller)
  • Alarm and Event Mechanisms
  • Data Sharing with updates on data changes
  • Device Management Support
  • Security: Achilles Storm Tested
  • Up to 1486 bytes of fast cyclic I/O in each direction
  • Support for the BOOL1 and the BIT1 data type (translated to Binary Value Objects)
  • Possible to do explicit padding of process data with the PADx data types
  • Support for the Network Time attribute in the Anybus object
  • Support for the Anybus file system interface object
Technical specifications
Dimensions (L•W•H) 52 x 50 x 22 mm
51 x 37 x 16 mm (without housing)
Operating temperature -40 to +70 °C
-40 to +85 °C (without housing)
Power requirements 3.3 VDC, ±0.15 VDC
Application Interface 8/16-bit parallel (30 ns access)
High speed SPI, baudrate configurable up to 20 MHz
I/O (shift register interface, cyclical update time 82 μs)
UART (for backwards compatibility with 30-series, max 625kbps)
Profile support Generic device
Ethernet features Transparent socket interface
Support of HTTP forwarding via socket interface
Integrated 2-port switch
IT functions (FTP server, E-mail client, web server with JSON and SSI support)
Internal file system  Configurable up to 28 MB
Two discs are available: One internal (28 MB capacity), and one reserved for accessing
the application file system (capacity determined by application)
LED indicators Integrated on front (with housing), via application interface (without housing).
Indicates Module Status and Network Status.
Connectors 2x RJ45 100 Mbit/s
Galvanic isolation Yes
Mechanical rating IP20, NEMA rating 1
Mounting PCB mount (hook-on) or mounting clip (without housing), electrical via CompactFlash connector
Certifications CE, CULUS, RoHS

Part number(s)

Anybus CompactCom M40 BACnet/IP RJ45
Anybus CompactCom M40 BACnet/IP RJ45
Anybus CompactCom M40 BACnet/IP RJ45
without housing
Anybus CompactCom M40 BACnet/IP RJ45without housing


CompactCom Host Connector
CompactCom Host Connector

Getting interested?

Are you interested in the Embedded BACnet/IP slave interface? Please request, without any obligation, for a quote. Would you like more information? Please send an email to or visit our contact page.
You can call us if you like, we can be reached at +31-40-2301.922. We are pleased to help you and do offer you practical advice and support.

Related products