BV7032 is a dedicated I/O bus shielded connection cable for the HIMA H51q/H41q system. It is used for redundant I/O bus communication between the central rack (B5232/B5233) and the expansion rack (B9302), and is a key interconnection component of the SIL3 safety system.

Basic Information

Model: BV7032 (Part Number: 0508)

Brand/series: HIMA / H51q (Compatible with H41q)

Type: 50-core shielded flat bus cable (round sheath)

Safety level: SIL3, Cat.4, PLe (Certified with the system)

Function: Central rack ↔ Expansion rack I/O bus connection, supports redundant communication

Specification Parameters

Number of Wires: 50 (Specialized bus pin definition)

Length Options:

BV7032-0.5: 0.5 meters (Standard)

BV7032-1: 1 meter (Commonly used)

Maximum support 30 meters (Customizable)

Bus Characteristics: Redundant I/O bus, Full-duplex high-speed communication

Impedance: 100Ω ± 10%

Sheath / Insulation: Flame-retardant PVC (UL94 V-0), optional oil-resistant TPE

Temperature Range: -40°C ~ +105°C

Certifications: IEC61508 SIL3, CE, RoHS, UL AWM 20276

Standard Configuration (Single Cable)

1 × BV7032 bus cable (including both ends specialized male-female connectors)

1 × Ground terminal (shielding layer grounding)

1 × Installation fixing cable tie

Key Features

Specialized Redundant Bus: Compatible with H51q redundant architecture, supports bus redundancy, single fault does not affect communication

High Anti-interference Design: 50-core shielded layer + twisted structure, suppresses EMI/RFI interference, suitable for industrial harsh environments

Long-distance Stable Transmission: Maximum 30-meter bus extension, supports multi B9302 rack-level connection

Plug-and-Play: HIMA dedicated connector, tool-free quick insertion and removal, reduces installation and maintenance costs

Safety Compliance: Complies with SIL3 safety isolation and communication standards, ensures reliable operation of ESD/F&G systems

Typical Applications

Central - Expansion Rack Connection: B5232/B5233 (Central) ↔ B9302 (Expansion) I/O bus communication

Multi-Expansion Rack Cascading: B9302 → B9302 → ... Daisy-chain topology, expands system I/O capacity

Decentralized I/O Deployment: On-site B9302 installed nearby, bus connected to the control room, simplifies wiring

Model Distinction

BV7032-0.5: 0.5 meters (Standard, short-distance rack stacking)

BV7032-1: 1 meter (Commonly used, standard cabinet spacing)

BV7032-X: X is the custom length (≤ 30 meters, long-distance extension)

Difference from Ordinary Cables

BV7032: HIMA dedicated 50-core redundant bus, shielded + twisted, SIL3 certification, high-speed and reliable

Ordinary Cables: Non-specialized core number / structure, no redundancy and SIL certification, weak anti-interference ability

Recommendation for Combinations

Central Rack (B5233-2) + Expansion Rack (B9302): Standard BV7032-1

Multi-rack Cascading (More than 3 B9302): Prefer BV7032-1, use BV7032-0.5 at the end

Long-distance (> 10 meters): Custom BV7032-X to ensure bus terminal matching