AUTONET HFDI Series Modules HFDI-16

Name: AUTONET HFDI Series Modules HFDI-16
Brand: Autonet

Model: HFDI-16

Brand Autonet

Series HFDI-16

Model HFDI-16

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Technical Dossier

Product Details And Specifications

AUTONET HFDI Series Technical Notes

The Evolution of HFDI Architecture

The HFDI series was introduced as part of AUTONET's second-generation DCS platform, succeeding earlier relay-based I/O racks that lacked software-configurable channel parameters. The initial release established the 16-channel digital input baseline (HFDI-16), which set the physical form factor and backplane bus protocol that all subsequent variants inherited. A subsequent expansion added 32-channel density variants (HFDI-32) to address high-density marshalling cabinet requirements without increasing rack slot consumption. Isolated variants (HFDI-16I, HFDI-32I) were introduced to meet IEC 61511 SIL-2 loop integrity requirements in safety-instrumented system (SIS) adjacent applications. Communication adapter modules (HFDI-CA series) were added to bridge legacy HFDI racks into modern FOUNDATION Fieldbus and PROFIBUS-DP segments, extending the operational life of existing installations. The HFDI-PS power supply sub-modules were standardized to provide redundant 24 VDC rail distribution within the I/O chassis. As the platform matured, AUTONET released firmware-locked versions for nuclear auxiliary applications, with extended temperature ratings (-20°C to +70°C) and enhanced EMC shielding. The series is now classified as mature/end-of-active-production by AUTONET, with the manufacturer providing only critical security patches and no new hardware revisions. This lifecycle status makes third-party verified spare parts sourcing the primary procurement path for maintenance engineers.

HFDI Series Full Catalog & Functionalities (SKU List)

Digital Input Modules (DI)

HFDI-16: 16-channel 24 VDC digital input, rack-mount, standard isolation
HFDI-16I: 16-channel DI, per-channel galvanic isolation, SIL-2 rated
HFDI-16H: 16-channel DI, high-voltage input 110/220 VAC compatible
HFDI-32: 32-channel 24 VDC digital input, high-density rack module
HFDI-32I: 32-channel DI, group-isolated, extended temperature range
HFDI-32H: 32-channel DI, 110 VAC input, marshalling cabinet variant

Digital Output Modules (DO)

HFDO-16: 16-channel 24 VDC digital output, transistor sink type
HFDO-16R: 16-channel relay output, 2A per channel, NO/NC configurable
HFDO-32: 32-channel 24 VDC digital output, high-density, source type
HFDO-32R: 32-channel relay output, DIN-rail mount, 1A per channel

Analog Input Modules (AI)

HFAI-08: 8-channel analog input, 4–20 mA / 0–10 V selectable per channel
HFAI-08T: 8-channel thermocouple input, J/K/T/E/R/S/B type configurable
HFAI-16: 16-channel analog input, 12-bit resolution, HART pass-through

Communication & CPU Modules

HFDI-CA-PB: PROFIBUS-DP communication adapter for HFDI chassis
HFDI-CA-FF: FOUNDATION Fieldbus H1 adapter, links HFDI rack to FF segment
HFDI-CPU-01: Local controller CPU module, 32 MB RAM, redundancy-capable

Power Supply Modules

HFDI-PS-24: 24 VDC redundant power supply sub-module, 5A rated
HFDI-PS-48: 48 VDC power supply variant for high-current output racks

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