HIMA K Series Modules K9202 Cabinet Roof Fan

Technical Dossier

Product Details And Specifications

HIMA K Series Technical Notes

The Evolution of K Series Architecture

HIMA's K Series hardware lineage traces to the early 1990s, when the company standardized its safety PLC backplane around a modular card-cage format compatible with both HIMax (large-scale, rack-based) and HIMatrix (compact, distributed) topologies. Early K Series modules used parallel backplane buses with proprietary HIMA SafeEthernet protocol for inter-module communication. Mid-generation revisions introduced hot-swap capability and redundant power paths, enabling online replacement without process shutdown — a critical requirement for continuous-process industries. Later iterations aligned with IEC 61784-3 functional safety communication standards and introduced fiber-optic inter-rack links. The K9202 and related cabinet accessories were introduced to address thermal management requirements as module density increased in later HIMax configurations. Compatibility between K Series generations is governed by HIMA's hardware compatibility matrix; cross-generation substitution requires engineering validation. The series is now in a mature/sustained phase: HIMA continues to supply spare parts and provide lifecycle support, but new installations predominantly use the HIMax X platform. Long-term maintenance customers should establish a strategic spare parts inventory to mitigate lead-time risk on discontinued sub-variants.

K Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked components within the HIMA K Series hardware range, organized by functional category:

Power Supply Modules

• K9101: 24 VDC redundant power supply module for HIMax rack systems
• K9102: 48 VDC input power supply unit, single-channel, rack-mount format
• K9103: Power distribution module with integrated fuse monitoring and alarm output

CPU / Controller Modules

• K9301: Central processing unit module, dual-core, SIL 3 certified, HIMax platform
• K9302: Redundant CPU module with hot-standby failover, 1oo2D voting architecture
• K9303: High-speed CPU module with extended memory for large logic programs

Digital Input (DI) Modules

• K9401: 32-channel 24 VDC digital input module, SIL 2, field-side isolated
• K9402: 16-channel 120 VAC digital input module, surge-protected, DIN rail compatible
• K9403: 32-channel digital input module with per-channel diagnostics and short-circuit detection

Digital Output (DO) Modules

• K9501: 16-channel 24 VDC digital output module, 0.5 A per channel, SIL 3
• K9502: 8-channel relay output module, 2 A rated, dry contact, SIL 2

Analog Input (AI) Modules

• K9601: 8-channel 4–20 mA analog input module, HART-compatible, SIL 2
• K9602: 16-channel analog input module, ±10 V / 4–20 mA configurable, 16-bit resolution

Communication & Adapter Modules

• K9701: PROFIBUS DP master/slave communication module, redundant bus support
• K9702: Modbus TCP/RTU gateway module, dual Ethernet port, DIN rail mount
• K9703: SafeEthernet inter-rack communication adapter, fiber-optic interface

Cabinet Auxiliary Hardware

• K9201: Cabinet base fan unit, 24 VDC, 80 CFM airflow, bottom-mount
• K9202: Cabinet roof fan unit, 24 VDC, forced-air exhaust, top-mount thermal management for HIMax controller enclosures