The BC9000 is an Ethernet bus terminal controller with integrated
PLC functionality, designed to meet automation requirements for
compact modular design and cost-effectiveness. This controller can
be combined with 1-64 bus terminals and one bus end terminal to
form a complete control unit, with additional expansion possible
via K-bus for distributed signal processing across various
industrial scenarios.
Programming & Compatibility
Programming is compatible with the TwinCAT 2 system, which complies
with the IEC 61131-3 standard and supports multiple mainstream
programming languages. Programs can be loaded through a dedicated
interface or transmitted via Ethernet for flexible and efficient
configuration. The controller features 64/96 KB program memory and
64/128 KB data memory, executing 1,000 instructions in
approximately 1.5 ms while reliably handling 512 digital
input/output channels and 128 analog input/output channels.
Note: does not currently recommend this product for use in new projects.
Key Features & Benefits
- Compact Modular Architecture: Flexible combination with 1-64 bus terminals and 1 bus end
terminal; expandable via K-bus for distributed signal processing in
diverse industrial scenarios.
- Cost-Effective Automation Solution: Low upfront investment with minimized installation and maintenance
costs; no parameter reconfiguration needed after terminal
replacement, significantly reducing downtime.
- Compliant & Versatile Programming: Fully compatible with TwinCAT 2 system and IEC 61131-3 standard,
supporting multiple programming languages; programs can be loaded
via dedicated interface or Ethernet.
- Reliable & Efficient Performance: 64/96 KB program memory & 64/128 KB data memory; executes 1,000
instructions in ~1.5 ms; handles 512 digital I/O channels and 128
analog I/O channels.
- Broad Industrial Applicability: Ideal for small-to-medium automation projects including packaging
machinery, photovoltaic equipment, and logistics systems.
Technical Specifications
| Parameter Category | Specific Parameter | Details |
|---|
| PLC Core Performance | Programming System | TwinCAT 2, compliant with IEC 61131-3 standard |
| Programming Languages | IL, LD, FBD, SFC, ST |
| Program Memory | 64/96 KB |
| Data Memory | 64/128 KB |
| Retentive Data Storage | 4080 Bytes |
| Instruction Execution Speed | Approx. 1.5 ms for 1000 instructions |
| I/O & Expansion Capability | Number of Bus Terminals | Up to 64 bus terminals + 1 bus end terminal |
| Digital I/O | 512 input/output channels |
| Analog I/O | 128 input/output channels |
| Max Fieldbus Bytes | 512 bytes input, 512 bytes output |
| Max Process Image Bytes | 512 bytes input, 512 bytes output |
| Communication Parameters | Communication Protocols | TwinCAT ADS, Modbus TCP |
| Data Transmission Rate | 10/100 Mbit/s, automatic rate detection |
| Bus Interface | 1× RJ45 port |
| Configuration Method | KS2000 software or Ethernet |
| Electrical Parameters | Supply Voltage | 24 V DC (-15% ~ +20% fluctuation) |
| Input Current | 70 mA + (total K-bus current)/4, max. 500 mA |
| Starting Current | 2.5× continuous current |
| K-bus Supply Current | Max. 10 A |
| Electrical Isolation | 500 V |
| Physical & Environmental | Protection Class | IP20 |
| Operating Temperature | -25℃ ~ +60℃ |
| Storage Temperature | -40℃ ~ +85℃ |
| Device Weight | Approx. 170 g |
| Dimensions (W×H×D) | 51 mm × 100 mm × 69 mm |
| Mounting Method | 35 mm DIN rail per EN 60715 |
Product Models
| Model Number | Core Configuration | Key Features | Certifications |
|---|
| BC9000 (MNR: 4105BA120000) | 64/96 KB program memory; 64/128 KB data memory | Integrated PLC functionality; Modbus TCP/TwinCAT ADS protocols | CE, UL, ATEX, IECEx, DNV |
| BC9000 (MNR: 5000B2030000) | 64/96 KB program memory; 4080 bytes retentive storage | 10/100 Mbit/s auto-sensing; no parameter reconfiguration required | CE, UL |
| BC9000 (SKU: 743003) | 64/96 KB program memory; 512 bytes fieldbus capacity | 35 mm DIN rail mounting; 500 V electrical isolation | CE |
| BC9100 | 64/96 KB program memory; 2× RJ45 ports | Linear topology networking; consistent with BC9000 performance | CE, UL |
| BC9050 | 32/96 KB program memory; 1× RJ45 port | Compact design with lower cost; compatible with all bus terminals | CE, UL |
Industry Applications
Renewable Energy (Solar & Wind Power)
The BC9000 is widely used in medium-and-small distributed
photovoltaic arrays for collecting voltage and current data from
solar panels. In offshore wind farms, ATEX-certified models provide
stable performance in humid, salt-laden environments for
controlling turbine yaw and pitch systems.
Packaging & Printing Machinery
In food packaging plants, the BC9000 precisely controls packaging
film tension, sealing temperature, and cutter frequency. The
BC9100's dual Ethernet ports enable synchronized control of
printing presses and inspection equipment.
Automotive & Component Manufacturing
The controller monitors temperature, pressure, and curing time in
tire vulcanization lines and collects operational data from welding
robots in assembly plants. The BC9050 Lite Version provides
reliable basic control for cost-conscious workshops.
Logistics & Warehousing
In logistics hubs, the BC9000 connects position sensors to identify
package size and weight for directing sorting robots. The BC9100's
linear topology networking is ideal for long sorting lines without
additional switches.
Frequently Asked Questions
Q: The indicator light won't turn on with 24V DC power. What's
wrong?
A: Check for reversed power polarity or excessive power supply
ripple. Verify "+" and "-" terminal markings and test power output
with a multimeter. If ripple exceeds 50mV, add a filter module.
Q: The BC9000 keeps losing digital signal packets with third-party
sensors. Why?
A: Poor grounding is likely the cause. Connect the BC9000's
grounding terminal directly to earth and use shielded cables with
single-end grounding. Separate sensor cables from power cables to
reduce electromagnetic interference.
Q: The controller crashes frequently in high-temperature
environments. How to fix?
A: Install a cooling fan or mount in a well-ventilated area away
from heat sources. Maintain at least 5cm clearance around the
controller for proper heat dissipation.
Q: Connection to Siemens SCADA via Modbus TCP fails. What to check?
A: Verify both devices are on the same IP subnet with correct
subnet mask and gateway settings. Ensure port 502 is configured
consistently and disable the SCADA system firewall if necessary.
Q: The BC9000 doesn't fit securely on local DIN rails. How to fix?
A: Add a thin non-slip rubber pad to the rail or replace clips with
compatible parts. Custom shims can also be used to fill gaps
between clips and the rail.
