I. Basic Information

Model: F3112 (F3 112)

Series: HIMA F3 (an early 19" rack-mounted safety control system, distinct from the compact F30/F35)

Type: Central Processing Unit Module (CPU), with integrated I/O and communication

Safety Level: SIL3 (IEC 61508), TÜV Certification; Cat.4/PL e

Programming software: ELOP II (old version), incompatible with SILworX

II. Core Specifications (Old Model F3 Rack-Type)

Processor: **Triple Module Redundancy (TMR) ** architecture, 3× independent CPU channels, hardware-level fault tolerance.

Memory: 1MB Flash (program) + 1MB SRAM (data).

Integrated I/O:

DI: 16 channels (24VDC)

DO: 8 channels (relays / transistors)

Communication:

2×RS485 (fieldbus)

1×Ethernet (early 10Mbps)

Support for expansion with F3 series I/O modules (such as F3221, F3330)

Power supply: 24VDC (18–30VDC), power consumption approximately 15W

Environment: 0℃ to +60℃, IP20

Size / Weight: 19" rack, 3U height; approximately 2.5kg

III. Differences from Compact F3001 (You Just Checked)

F3112: Old 19" rack-type CPU, TMR architecture, discontinued, requires F3 rack + power supply, large in size, complex wiring.

F3001: Compact CPU (DIN rail), dual-core redundancy, current mainstream, integrated 20DI + 8DO, small in size, easy to install.

IV. Typical Applications (Historical Scenarios)

Old petrochemical ESD emergency stop system

Power plant boiler / turbine protection (early projects)

Oil and gas station F&G fire gas detection (old equipment)

Legacy F3 systems that need replacement / expansion