Description
HIMA X-SB-01 (985210207) HIMax System Bus Module
Product Description
The X-SB-01 with part code 985210207 is the HIMax system bus module developed by HIMA for SIL3 safety instrumented systems (SIS). It forms the core internal communication backbone of the HIMax rack, establishing high integrity system bus connections between safety CPUs, power supplies and all I/O modules. It supports both single bus and redundant dual bus (1oo2) architecture to achieve fault-tolerant data transmission. Equipped with dedicated service PADT port and multi-channel status indicators, the module executes continuous self-diagnosis for bus health and connection faults. It provides mechanical slots and bus routing for pluggable HIMax I/O cards and supports hot-swap replacement of individual modules without system shutdown, designed for safety-critical process applications with strict availability requirements.

X-SB-01
Technical Specifications
- Part Number: X-SB-01, 985210207
- Manufacturer: HIMA
- Series: HIMax Safety Control System
- Device Type: System Bus Module
- Safety Level: SIL3 certified (IEC 61508 / IEC 61511)
- Supply Voltage: 24 VDC, -15% ~ +20%
- Max Current Consumption: 0.65 A
- Operating Temperature: 0°C ~ +60°C
- Storage Temperature: -40°C ~ +85°C
- Relative Humidity: 5% ~ 95%, non-condensing
- Interfaces: 2 × System Bus (UP/DOWN), PADT service port, DIAG diagnostic port
- Mounting: DIN rail mount for HIMax rack
- Dimensions: 310 × 29.2 × 230 mm
- Weight: Approx. 1.2 kg
- Approvals: TÜV SÜD, CE, ATEX, UL
- Enclosure Rating: IP20
Key Features
- SIL3 certified system bus backbone for HIMax safety rack
- Supports redundant dual system bus architecture for 1oo2 fault tolerant operation
- Continuous bus communication monitoring and comprehensive hardware self-diagnosis
- Built-in PADT service interface for programming, configuration and diagnostics
- Hot-swap compatible, allows I/O module replacement without safety system shutdown
- Multi LED status indicators for bus redundancy, initialization and slot status
- High noise immunity for stable communication in noisy industrial cabinets
- Modular rack structure for flexible expansion of I/O slots
Application Scenarios
- Oil & gas emergency shutdown systems (ESD)
- Petrochemical plant safety instrumented systems
- Power plant boiler, gas turbine and generator safety protection
- Burner management systems (BMS)
- Offshore platform fire & gas protection systems
- Chemical reactor overpressure and overtemperature interlock
- Pipeline safety shutdown and pressure protection
- LNG terminal safety control cabinets
Matching / Auxiliary Components
- HIMax safety CPU modules (H41q / H51q)
- HIMax power supply modules
- HIMax I/O modules: F-DI, F-AI, F-DO, F-AO
- HIMax termination baseplates
- HIMA SILworX programming & diagnostic software
- System bus connection cables
- DIN rail mounting hardware
- Shielded field cables for safety I/O signals
Related HIMA HIMax Series Models (9 pcs)
- H51q HIMax Safety CPU Module
- H41q HIMax Safety CPU Module
- F-DI 16 01 Digital Input Module
- F-AI 8 01 Analog Input Module
- F-DO 16 01 Digital Output Module
- F-AO 8 01 Analog Output Module
- X-PWR01 HIMax Power Supply Module
- X-BLK01 Blank Slot Cover Module
- X-HART01 HART Communication Module

