I. Basic Information

Model: F2304 (HIMA, Planar F Series)

Type: Safety Logic Controller / CPU Module (TMR Tri-Redundant Architecture)

Adapter Rack: F2 Series 19-inch Rack (same series as F2201)

Safety Level: SIL3 (IEC 61508), TÜV Certification

Programming Software: ELOP II (Compatible with older versions)

II. Core Parameters

Processor: 3-channel TMR (Triple Redundancy), 32-bit Intel 386EX CPU

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

Processing Cycle: Typical 10 ms, supports complex security logic

I/O Capacity: Maximum expansion to 256 points I/O (twice that of F2201)

Power Supply: 24 VDC (18–32 VDC), power consumption approximately 18 W

Size / Weight: 198 mm × 142 mm × 25 mm / 0.09 kg

Operating Temperature: 0℃ ~ +60℃

III. Key Features

TMR Triple Redundancy: Three CPUs operate in parallel + hardware voting, single-channel failure has no impact, security is higher than the dual-redundancy of F2201.

High Security Processing: Specifically designed for ESD, BMS, F&G, supports SIL3 cascading logic.

Integrated Communication: Built-in RS-232/485, supports Modbus RTU; optional Ethernet expansion.

Self-Diagnosis: Full coverage fault detection (CPU, memory, communication, I/O), fault-safe shutdown.

Downward Compatibility: F2 series racks can be directly replaced with F2201, with minor program adjustments for migration.

IV. Differences from F2201 (You just checked this)

F2201: Dual-redundant 16-bit CPU, maximum 128 points I/O, basic SIL3.

F2304: TMR triple redundancy 32-bit CPU, maximum 256 points I/O, higher security and performance, an upgraded replacement for F2201.

V. Typical Applications

Petroleum Industry: Upgrade of old equipment SIS, ESD emergency stop, BMS burner management

Electricity: Safety interlocks for old units, boiler / turbine protection systems

Oil and Gas: Station F&G fire gas detection, valve interlock control