HIMA B4237-1

B4237-1 is a 19-inch 5U high-performance single-channel bus system rack kit from the HIMA (Himac) H41q-HS series in Germany. It belongs to the SIL3 safety-level high-integrity system assembly component. It enhances the performance and diagnostic capabilities based on the B4236-1 model.

Basic Information

Model: B4237-1 (Order Number: 997104237)

Brand/Series: HIMA / H41q-HS (Compatible with H51q, High Integrity)

Type: System Rack Assembly Kit

Safety Level: SIL3, Cat.4, PL e (TÜV Certified, IEC 61508)

Bus Architecture: Single-channel system bus + Redundant CPU (High-performance Infrastructure)

Position: A high-performance upgrade version of B4236-1, with stronger I/O capacity and diagnostic capabilities

Rack body

Specification: 19-inch standard, 5U height (approximately 222mm)

Model: K1409 system sub-rack (compatible with B4236 series)

Structure: Integrated cable trough, 4 K9212 fan modules, backplane Z1009 (with enhanced diagnostic circuitry)

Installation: Standard 19-inch cabinet fixation

Weight: Approximately 3.8kg (slightly heavier than B4236-1)

Standard configuration includes (complete high-performance configuration)

1 × K1409: 5U system rack (with enhanced fans and diagnostic backplane)

2 × F8652: redundant central processing module CU (high main frequency, enhanced computing capability)

2 × F7130A: redundant power module (24/5VDC, wide voltage optimization)

2 × Z6011: power decoupling and fuse module (with overcurrent warning)

1 × Z6012: fan monitoring module (speed + fault dual monitoring)

2 × Z6013: WD signal power decoupling module (redundant isolation)

1 × Z6007/Z6017: jumper plug (system configuration)

4 × K9212: redundant cooling fans (high speed, suitable for high power consumption)

1 × Z1009: dedicated enhanced backplane (increases I/O expansion channels and diagnostic bus)

Core parameters

Operating voltage: 24VDC (±15%, redundant power supply, wide voltage adaptation)

Power consumption: Approximately 100W (full configuration, higher than B4236-1)

Operating temperature: 0°C ~ +60°C (extended high temperature tolerance, suitable for harsh environments)

I/O capacity: Up to 13 I/O modules (single bus, B4236-1 has only 7)

Protection level: IP20

Certifications: TÜV, CE, SIL3, ATEX (optional)

Response time: ≤0.05ms (high-speed processing, superior to B4236-1)

Key features

High I/O expansion capability: 13 I/O slots (B4236-1 has 7), suitable for medium and large SIS systems

Enhanced redundancy and diagnostics: redundant CPU + single bus, backplane integrated dedicated diagnostic bus, fault coverage rate increased to 99.9%

High-performance computing: F8652 CPU frequency increase, supports complex logic and large-scale data processing

Wide temperature industrial design: operates at 0°C ~ +60°C, more resistant to vibration and interference, suitable for high-temperature conditions

Compatible with H51q system: can be seamlessly integrated into the H51q platform, protecting investment and facilitating system upgrades

Typical applications

Petrochemical ESD emergency shutdown system (medium and large-scale installations, many I/O points)

Power plant / power station BMS combustion management, FSS furnace safety system (high logical complexity)

Natural gas / long-distance pipeline SIS safety instrumented system (key sites, high reliability requirements)

Metallurgy / coal chemical high-risk process equipment SIL3 level safety control platform (medium and large-scale)

Scenarios requiring high-density I/O + high-speed response (replacing B4236-1)

Model differences (B4237-1 vs B4236-1 vs B4237-2)

B4237-1 (H41q-HS): single-channel bus, redundant CPU, 13 I/O slots, high-performance basic version

B4236-1 (H41q-H): single-channel bus, redundant CPU, 7 I/O slots, standard economy version

B4237-2 (H41q-HRS): redundant bus, redundant CPU, 13 I/O slots, high availability flagship version