F7105A is a SIL3 safety controller (CPU module) from the German HIMA HIMatrix series, featuring a TMR triple-redundancy architecture. It is used for critical safety control in SIS/ESD systems and is part of a different product line from F7101/F7102 (HIMax series). 

I. Basic Information

Model: F7105A (Material Number: 984710501)

Brand/Series: HIMA (Germany Hima) / HIMatrix (not HIMax)

Type: Safety CPU Controller (SIS/ESD core)

Safety Level: SIL3, AK6, Cat.4/PL e (TÜV Certification)

Architecture: TMR Triple Module Redundancy (Three CPUs Synchronous Voting)

Processor: 32-bit Microprocessor (Base Frequency 1.2GHz)

Memory: 1MB Flash (Program) / 1MB SRAM (Data)

II. Core Parameters

System Bus: HIMatrix redundant bus

Communication Interfaces:

Ethernet TCP/IP (10/100Mbps, RJ45)

RS-485/RS-232 Serial Ports

Diagnosis: Full hardware self-diagnosis, channel failure detection, power / clock monitoring

Power Supply: 24V DC, ≤130mA

Power Consumption: <6W

Operating Temperature: -25℃ ~ +70℃ (wider than HIMax)

Size / Weight: 4TE (25×185×128mm) / ≈0.32kg

Installation: DIN rail, supports hot swapping

III. Key Differences from F7101/F7102 Table

Comparison item: F7105A (HIMatrix) vs. F7101/F7102 (HIMax)

Series: HIMatrix (compact) vs. HIMax (modular)

Architecture: TMR triple redundancy vs. TMR triple redundancy

Memory: 1MB/1MB vs. 1MB/1MB (F7101); 4MB/4MB (F7102)

Network ports: Single Ethernet port vs. Single port (F7101); Dual ports (F7102)

Temperature range: -25°C ~ +70°C vs. -20°C ~ +60°C

Size/Weight: Smaller and lighter (0.32kg) vs. 0.5kg

Interchangeability: Incompatible with F7101/F7102 vs. F7101 ↔ F7102 can be directly interchangeable

Four. Functions and Applications

Core functions: Execute safety logic (ESD emergency stop, BMS burner management, F&G fire and gas system); Redundant voting; Fault safety; Online diagnosis.

Typical applications: Small-scale SIS projects in petrochemicals, oil and gas, power, pharmaceuticals, etc., suitable for space-constrained / wide-temperature environments.

Five. Model Description

F7105A: HIMatrix series standard CPU (SIL3, TMR)

F7105: No suffix version (has been discontinued, A is an upgraded model)