HIMatrix B4243 H41q Rack Backplane Board

Technical Specifications

Model:B4243

Brand:HIMA(HIMatrix)

Safety certification:SIL3,IEC61508,TÜV certified

Function:Backplane for H41q rack,internal system bus

Interface:Module backplane connectors,24V DC power distribution

Mounting:Installed inside H41q rack

Protection class:IP20

Operating temperature:-20~+60℃

Relative humidity:5~95% non-condensing

Weight:1.6kg

Certification:CE,ATEX compliant

System compatibility:Matches HIMA H41q / H41q-H / H41q-HR / H41q-HS / H41q-HRS rack system,connects safety CPU,communication and I/O modules,for petrochemical,chemical plant ESD emergency shutdown and F&G fire gas protection system.

Function:Rack internal backplane board,realizes backplane bus data exchange and power distribution among all plug-in modules in H41q rack.Transmits safety signal and diagnostic data between CPU and I/O modules.

Installation:Fixed at the rear of H41q rack,all modules plug onto backplane connectors.

Interface:

‑Multi-channel backplane bus connectors

‑24V DC power distribution circuit

‑Bus signal trace for safety data transmission

Circuit feature:Safety-grade PCB layout,stable signal transmission,anti-interference design,meets SIL3 functional safety requirements for hazardous industrial environment.

Feature:H41q series dedicated backplane B4243. It is the core bus carrier of H41q rack. Common faults:connector pin corrosion,internal circuit open circuit,bus communication interruption.Confirm rack series before replacement.

Diagnostic:Backplane fault causes all modules communication failure,system offline and safety alarm.

Built‑in function

B4243 serves as safety bus carrier for H41q SIS emergency shutdown system,widely used for chemical and power plant safety spare replacement.

Product Brief

B4243 belongs to HIMA H41q rack backplane family,SIL3 safety backplane PCB for H41q safety rack. Verify rack model compatibility before ordering. Check bus communication and power distribution during commissioning. ESD anti‑static protection shall be followed during installation.