Core Functions

On-site signal wiring and isolation: Provides physical isolation between the hazardous (field) side and the safe (system) side.

Safety-side / dangerous-side separation: Ensures reliable galvanic isolation for SIS applications.

Fault bus and status feedback: Supports centralized fault signaling and system diagnostics.

Recommended Isolation Modules

HiD2029 – Analog input with HART, 1 channel / up to 10 signals

HiD2030 – Analog input with HART, 1 channel / up to 20 signals

Electrical & Interface Specifications

Power supply: 24 VDC (supports redundant power supply configurations)

Hazardous area interface: Blue cage clamp terminals

Safe area interface: 96-pin system connector

Fault feedback:

Isolated fault output for power supply loss or on-site errors

Potential-free (dry contact) signal output

Mechanical & Environmental Design

Housing: Fiberglass-reinforced plastic enclosure

Protection: Anti-vibration and anti-EMI design for industrial environments

Application Scope

SIS analog signal acquisition circuits, including:

Pressure transmitters

Temperature sensors

Flow measurement devices

Key Features

Safe isolation
Physically isolates hazardous areas from the control system, fully compliant with IEC 61508 functional safety requirements.

Advanced fault diagnostics
The fault bus supports daisy-chain connection, allowing fault status to be integrated into the control system for alarms and safety interlocking.

Plug-and-play integration
Precisely matched to HIMax backboards and modules, minimizing cabinet wiring, installation effort, and commissioning time.

Explosion-proof adaptation
Blue terminals are suitable for Zone 2 and other hazardous environments, meeting industrial explosion-protection standards.