Many procurement teams check BC3150 against Beckhoff Bc9000, Beckhoff Bc9120 and Beckhoff Bx3100 before signing purchase orders, verifying quality, compliance, and after-sales support availability.
BC3150 - Beckhoff Bus Terminal Controllers
Beckhoff BC3150 Bus Terminal Controller offers reliable PLC functionality with fieldbus integration, ideal for automation systems requiring compact control.

| Brand | Beckhoff |
| Product Type | Bus Terminal Controllers |
| Product | BC3150 |
BC3150 Beckhoff Bus Terminal Controllers Technical Specifications
| Specification | Value |
|---|---|
| Programming | TwinCAT (via programming interface or fieldbus) |
| Program memory | 48 kbytes |
| Data memory | 32 kbytes |
| Remanent data | 2 kbytes |
| Runtime system | 1 PLC task |
| PLC cycle time | approx. 3 ms for 1,000 instructions (without I/O cycle, K-bus) |
| Programming languages | IEC 61131-3 (IL, LD, FBD, SFC, ST) |
| Number of Bus Terminals | 64 (255 with K-bus extension) |
| Max. number of bytes fieldbus | 128 byte input and 128 byte output |
| Max. number of bytes process image | 512 byte input and 512 byte output |
| Digital peripheral signals | 2,040 inputs/outputs |
| Analog peripheral signals | 128 inputs/outputs |
| Configuration possibility | via KS2000 or fieldbus |
| Data transfer rates | automatic detection up to 12 Mbaud |
| Bus interface | 1 x D-sub socket, 9-pin |
| Power supply | 24 V DC (-15%/+20%) |
| Input current | 320 mA max. |
| Starting current | 2.5 x continuous current |
| Current supply K-bus | 1750 mA |
| Power contacts | max. 24 V DC/max. 10 A |
| Electrical isolation | 500 V (power contact/supply voltage) |
| Weight | approx. 100 g |
| Operating temperature | -25..+60°C |
| Storage temperature | -40...+85°C |
| Relative humidity | 95%, no condensation |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Protect. rating/installation pos. | IP20/variable |
| Approvals/markings | CE, CCC, UL, ATEX, IECEx |
| Ex marking | ATEX: II 3 G Ex ec IIC T4 GcIECEx: Ex ec IIC T4 Gc |
| Design form | compact terminal housing with signal LEDs |
| Material | polycarbonate |
| Dimensions (W x H x D) | 44 mm x 100 mm x 68 mm |
| Installation | on 35 mm DIN rail, conforming to EN 60715 with lock |
| Side by side mounting by means of | double slot and key connection |
| Marking | labeling of the BZxxxx series |
| Wiring | solid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver |
| Connection cross-section | s*: 0.0...2.5 mm²,st*: 0.08...2.5 mm²,f*: 0.14...1.5 mm² |
| Stripping length | 8...9 mm |
| Current load power contacts | Imax: 10 A |
The Beckhoff BC3150 offers powerful PLC functionality combined with fieldbus communication, making it an advanced choice in the Bus Terminal Controllers category. With 48 kbytes of program memory, 32 kbytes of data memory, and 2 kbytes of remanent data, it ensures smooth program execution and secure data retention. The device supports up to 64 Bus Terminals, expandable to 255 with K-bus extensions, giving flexibility to engineers managing complex automation tasks. Its fast PLC cycle time of 3 ms per 1,000 instructions ensures accurate and efficient operation for real-time applications.
The BC3150 supports IEC 61131-3 programming languages, including IL, LD, FBD, SFC, and ST, providing flexibility for developers. It delivers robust performance with 1750 mA K-bus current supply, operates on 24 V DC, and maintains 500 V electrical isolation for safety. The compact polycarbonate housing (44 x 100 x 68 mm) is built for DIN rail installation and includes signal LEDs for simplified monitoring. Certified with CE, UL, ATEX, and IECEx approvals, it is designed for global compliance and reliable use in harsh industrial environments.
Applications for the Beckhoff BC3150 Bus Terminal Controller span machine automation, process control, building management, and modular control stations. With its durability, high-speed data handling, and wide compatibility, the BC3150 stands out as a trusted controller for automation engineers and system integrators seeking long-term stability and scalability in industrial projects.







