HIMA F7553 984755302 100 MIPS Safety Controller with 8 MB Program Memory
Description
The HIMA F7553 984755302 is a high-integrity safety-certified central processing unit(CPU)designed for HIMA’s F-Series safety instrumented systems(SIS),including the HFX and HFS platforms.As the core logic solver in mission-critical applications,this CPU is engineered to meet SIL 3(IEC 61508/61511)requirements and delivers robust performance for emergency shutdown(ESD),fire and gas(F&G),burner management(BMS),and process shutdown systems.Powered by a 100 MHz RISC processor with 8 MB of user program memory,the F7553 executes safety logic with deterministic response times,ensuring rapid and reliable reaction to hazardous events.It supports redundant 1oo2 and 2oo3 architectures and features integrated communication ports for seamless integration into industrial networks.
Application Scenarios
At a major LNG liquefaction plant in Qatar,the HIMA F7553 984755302 serves as the primary CPU in redundant HFX safety racks,monitoring over 1,200 field devices including pressure transmitters,ESD valves,and gas detectors.During a simulated pipeline rupture,the F7553 detected multiple high-pressure and gas leak signals within 50ms,executed the pre-programmed shutdown logic,and isolated the affected section—all within the required safety response window.Its dual Ethernet ports enabled simultaneous connection to the plant’s SIS network and the engineering workstation for real-time diagnostics,ensuring zero downtime during testing and maintenance.
In a European chemical manufacturing facility,an aging safety system was upgraded from HIMA H41q to the modern F-Series platform using the F7553 CPU.The transition was streamlined using FSC Connect software,which migrated legacy logic with minimal re-engineering.The 8 MB program memory accommodated complex batch safety interlocks and sequence-of-events logging.During a reactor over-temperature event,the F7553’s advanced diagnostics identified a failed thermocouple input module,preventing a false trip and saving over$500,000 in potential production loss—demonstrating its value in both safety and operational reliability.
Parameter
Main Parameters Value/Description
Product Model HIMA F7553 984755302
Manufacturer HIMA Paul Hildebrandt GmbH
Product Category Safety-Certified PLC CPU Module
Compatible Systems HIMA HFX,HFS(F-Series)Safety Controllers
Processor 100 MHz RISC CPU,100 MIPS performance
Program Memory 8 MB(user logic,data,and diagnostics)
Safety Integrity Level(SIL)Certified for SIL 3 per IEC 61508 and IEC 61511
Redundancy Support 1oo2(Dual),2oo3(Triple)voting architectures
Execution Time~0.1µs per Boolean instruction
Integrated Communication 2 x 10/100 Mbps Ethernet(Modbus TCP,HIMA protocols),1 x Profibus DP
Backplane Interface HIMA X-bus(high-speed safety network for I/O modules)
Programming Software HIMA FSC Connect(IEC 61131-3:LD,FBD,ST,SFC,IL)
Power Supply Dual redundant 24VDC via backplane(hot standby)
Operating Temperature-20°C to+60°C(industrial grade)
Installation DIN-rail mount,hot-swappable design
Status Indicators RUN,ERROR,COMM,READY,and network LEDs
Certifications TÜV Rheinland SIL 3,ATEX,IECEx,FM,CSA,UL,GL
Technical Principles and Innovative Values
Innovation Point 1:HFT²(Hot Fault Tolerant)architecture enables hot-swapping of the F7553 CPU without interrupting safety functions,allowing for maintenance and upgrades in continuous-process environments.
Innovation Point 2:Dual Ethernet and Profibus interfaces provide native connectivity to DCS,SCADA,and asset management systems without requiring external gateways,simplifying network topology and reducing single points of failure.
Innovation Point 3:8 MB of program memory supports complex safety logic,historical event logging,and embedded diagnostics—ideal for large-scale SIS with hundreds of interlocks and sequences.
Innovation Point 4:Deterministic execution and watchdog timers ensure predictable scan times and automatic fail-safe response in case of software or hardware faults,meeting the highest functional safety standards.
Innovation Point 5:Advanced diagnostics and self-test routines continuously monitor CPU health,memory integrity,and communication status,providing early warning of potential failures and reducing unplanned downtime.
Application Cases and Industry Value
A deepwater offshore platform in the Gulf of Mexico relies on HIMA F7553 984755302 CPUs in a 2oo3 triple-redundant configuration to protect its subsea production system.The CPUs process signals from 300+subsea sensors via multiplexed communication,executing shutdown logic with millisecond precision.The F7553’s robust design has operated flawlessly for over seven years in a high-humidity,salt-laden environment.Its dual Ethernet ports support remote monitoring from the onshore control center,reducing the need for offshore technician visits and cutting OPEX by 25%.
In a hydrogen production facility,the F7553 manages the burner management system(BMS)for a steam methane reformer.It sequences pilot and main flame ignition,monitors flame scanners,and enforces purging logic—all critical for preventing explosive mixtures.The 8 MB memory stores detailed event logs required for regulatory compliance(NFPA 86,IEC 67-6).During a recent audit,the F7553’s diagnostic data provided clear evidence of system integrity,resulting in a smooth certification renewal with zero findings.
Related Product Combination Solutions
HIMA X-BR1001:10-Slot X-Series Baseplate–Mechanical rack for F7553 and I/O modules.
HIMA X-DI1601:16-Channel Digital Input Module–Interfaces ESD buttons,switches,and relays.
HIMA X-DO1601:16-Channel Digital Output Module–Drives solenoid valves and contactors.
HIMA X-AI2401:8-Channel Analog Input Module–For 4-20mA safety signals(pressure,temperature).
HIMA X-PW1001:Dual Redundant Power Supply–Provides isolated power to the safety rack.
HIMA FSC Connect:Engineering&Diagnostics Software–Used to program,commission,and troubleshoot the F7553.
HIMA HFX 01 01:Older F-Series CPU–Can be upgraded to F7553 for enhanced performance.
HIMA PMx:Standalone Safety Controllers–Alternative platform for smaller applications.
Installation,Maintenance,and Full-Cycle Support
The HIMA F7553 984755302 installs on DIN rail and connects to the X-bus backplane.No manual configuration is required—the CPU is auto-detected during system startup.Use FSC Connect software via Ethernet to download safety logic,configure communication settings,and perform online monitoring.
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