KONGSBERG SBC400H | PLC Rack with DI400 AI400 DO400 Modules

🔧 Product Overview

The KONGSBERG SBC400H is a PLC module rack assembly configured with DI400, AI400, and DO400 I/O modules. It is associated with Kongsberg Simrad industrial and marine automation equipment and provides a centralized hardware platform for connecting field signals to the control system.

The available product identification lists SBC400H as the rack/model and DI400, AI400, and DO400 as the installed I/O module types. Matching listings also identify the assembly as a PLC module rack and specify a weight of approximately 10 kg and Norway as the country of origin.

The referenced unit is listed as used. Since the rack is supplied as an assembled configuration, the exact installed module versions, connector arrangement, and rack contents should be checked against the original system before replacement.

⚙️ Key Features

• Kongsberg Simrad SBC400H PLC rack
• Integrated DI400 digital input module
• Integrated AI400 analog input module
• Integrated DO400 digital output module
• Designed for industrial and marine automation systems
• Modular I/O architecture
• Centralized field-signal connection
• Associated with Kongsberg PC430 / PCU30 control equipment
• Approximate weight: 10 kg
• Country of origin: Norway
• Condition: Used

Available matching product information identifies the assembly with SBC400H, PC430/PCU30, AI400, DI400, and DO400 references.

 

📋 Product Datasheet

Parameter	Specification
Brand	Kongsberg
Manufacturer	Kongsberg Simrad
Model	SBC400H
Product Type	PLC Module Rack
Installed I/O	DI400 / AI400 / DO400
Digital Input Module	DI400
Analog Input Module	AI400
Digital Output Module	DO400
Associated System	PC430 / PCU30
Rack Architecture	Modular I/O
Power Supply	System dependent
Communication	System dependent
Mounting	Control cabinet / rack system
Country of Origin	Norway
Weight	Approx. 10 kg
Condition	Used

The available listing data does not provide a complete electrical specification for the assembled rack, so supply voltage, channel ratings, and communication parameters should be verified from the individual module labels and system documentation.

 

⚡ Operating Function

The SBC400H provides the physical platform for multiple I/O modules within the Kongsberg control architecture.

The DI400 module handles digital field signals, while AI400 is intended for analog signal acquisition. DO400 provides digital output functions for connected equipment. Together, these modules allow the control system to exchange different types of field information with machinery and process equipment.

The modular arrangement is useful in marine automation because multiple signal types can be brought into one control-system rack while maintaining separation between the individual I/O functions.

Technical training material for the Kongsberg I/O architecture describes the SBC-side bus interface and identifies DI400 and AI400 as dedicated I/O card types.

 

🛠️ Installation & Configuration

Before installing the SBC400H assembly:

1. Confirm the SBC400H identification.
2. Check that DI400, AI400, and DO400 modules are the required configuration.
3. Record the part numbers and hardware revisions of each installed module.
4. Inspect the rack connectors and backplane for corrosion or mechanical damage.
5. Verify the system power supply before energizing the rack.
6. Check field wiring against the original terminal configuration.
7. Confirm the rack position and I/O addressing.
8. Verify communication with the associated controller.
9. Test digital inputs and outputs individually.
10. Check analog input channels against known reference signals.

For marine equipment, connector corrosion and poor cabinet grounding deserve particular attention. A rack may appear mechanically sound while still having contact resistance or insulation problems caused by long-term environmental exposure.

 

🔍 Maintenance Tips

Keep the rack clean and dry and protect exposed connectors during storage.

When inspecting a used SBC400H, pay attention to the backplane, card-edge connectors, terminal connections, and mounting hardware. Look for oxidation, salt contamination, discoloration from overheating, cracked solder joints, or damaged PCB connectors.

For the AI400 section, verify analog-channel accuracy using known test signals. For DI400 and DO400, perform channel-by-channel functional tests rather than relying only on a controller startup test.

If the rack is used as a spare, record the exact module combination before storage. Replacing the rack with a visually similar SBC assembly does not guarantee that the same I/O configuration is installed.

 

❓ Frequently Asked Questions

Q1: What is the Kongsberg SBC400H?
It is a modular PLC I/O rack used with Kongsberg Simrad control equipment.

Q2: Which modules are included?
The referenced assembly includes DI400, AI400, and DO400 modules.

Q3: What does DI400 do?
DI400 is a digital input module used to receive discrete field signals.

Q4: What does AI400 do?
AI400 is an analog input module used for acquiring analog field measurements.

Q5: What does DO400 do?
DO400 is a digital output module used to provide discrete control signals to external equipment.

Q6: What system is the SBC400H associated with?
Available product information associates the assembly with Kongsberg PC430 / PCU30 equipment.

Q7: What is the weight?
Matching product listings specify approximately 10 kg for the complete rack assembly.

Q8: Is the referenced unit new?
No. The referenced listings identify the assembly as used.

Q9: Can another Kongsberg rack replace the SBC400H?
Not automatically. The I/O card types, rack addressing, backplane, wiring, firmware, and controller configuration must be checked first.

Q10: Is this suitable as a spare part?
Yes, when the complete rack configuration matches the installed system. Testing the rack and individual I/O modules before deployment is recommended.

 

🔄 Recommended Kongsberg Models & Modules

For customers maintaining Kongsberg marine and industrial automation systems, the following related components may also be relevant:

1. Kongsberg SBC400H PLC Rack
2. Kongsberg DI400 Digital Input Module
3. Kongsberg AI400 Analog Input Module
4. Kongsberg DO400 Digital Output Module
5. Kongsberg PC430 Controller
6. Kongsberg PCU30 Control Unit
7. Kongsberg SBC400 PLC Rack
8. Kongsberg I/O Interface Modules
9. Kongsberg Marine Automation Control Modules
10. Kongsberg Simrad PLC I/O Cards

Exact interchangeability should be confirmed by the complete part number and installed system configuration.

 

🏭 Application Summary

The KONGSBERG SBC400H is a modular PLC rack configured with DI400, AI400, and DO400 I/O modules. It provides a practical interface between the Kongsberg control system and different types of field signals, combining digital input, analog input, and digital output functions in one rack assembly.

For replacement or maintenance work, the complete configuration should be matched rather than purchasing the rack by model name alone. Check the SBC400H identification, individual I/O module numbers, hardware revisions, backplane condition, wiring, and controller compatibility before commissioning.