HIMA B4237-2

B4237-2 is a 19-inch 5U high-performance redundant bus system rack kit from the H41q-HRS series of the German HIMA (Black Horse) brand. It belongs to the SIL3 level high availability safety control system and is the fully redundant upgraded flagship version of B4237-1.

Basic Information

Model: B4237-2 (Order Number: 997204237)

Brand/series: HIMA / H41q-HRS (H51q compatible, high availability)

Type: System Rack Assembly Kit

Safety level: SIL3, Cat.4, PL e (TÜV certified, IEC 61508)

Bus architecture: Redundant system bus + redundant CPU (no single point of failure, highest availability)

Location: Full redundant upgrade version of B4237-1, with the strongest I/O capacity and diagnostic capabilities

Rack body

Specification: 19-inch standard, 5U height (approx. 222mm) × depth 248mm

Model: K1409 system sub-rack (compatible with B4236/B4237-1)

Structure: Integrated cable trough, 4 K9212 fans, backplane Z1009 (for redundant bus)

Installation: Standard 19-inch cabinet mounting

Weight: Approximately 4.0kg (full redundant configuration, slightly heavier)

Standard configuration includes (complete full redundant configuration):

1 × K1409: 5U system rack (including redundant fans and dedicated redundant backplane)

2 × F8652X: redundant central processing module CU (high performance, redundant bus interface)

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

2 × Z6011: power decoupling and fuse module (redundant power supply protection)

1 × Z6018: fan monitoring module (enhanced version, including fault alarm and fuse)

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

1 × Z6007: jumper plug (redundant bus configuration)

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

1 × Z1009: redundant bus backplane (special, dual bus channels, no single point failure)

Core parameters:

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

Power consumption: approximately 120W (full redundant, higher than B4237-1)

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

I/O capacity: up to 13 I/O modules (redundant bus allocation: 7 to CU1, 6 to CU2)

Protection level: IP20

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

Response time: ≤0.05ms (high-speed redundant processing, no delay)

Availability: 99.999% (no single point failure, redundant bus + redundant CPU)

Key features:

Full redundant architecture (bus + CPU): dual redundancy without single point failure, availability far higher than B4237-1 (single bus)

High I/O expansion capability: 13 I/O slots (same as B4237-1), redundant bus allocation, suitable for large SIS systems

Enhanced diagnosis and fault tolerance: backplane integrated redundant diagnostic bus, fault coverage 100%, supports online module replacement

High-performance redundant computing: dual F8652X CPU redundancy synchronization, supports complex logic and large-scale data processing

Wide temperature industrial design: operates from 0°C to +60°C, more resistant to vibration and interference, suitable for high/low temperature / high humidity conditions

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

Typical applications:

Petrochemical ESD emergency shutdown system (large facilities, high availability + high-density I/O)

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

Natural gas / long-distance pipeline SIS safety instrumented system (critical sites, no single point failure requirement)

Metallurgy / coal chemical high-risk process equipment SIL3 level safety control platform (large-scale + high reliability scenarios)

Scenarios requiring full redundancy + high-speed response + high-density I/O (replacing B4237-1/B4236-2)

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

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

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

B4236-2 (H41q-HR): redundant bus + redundant CPU, 7 I/O slots, standard high availability version