I. Basic Information

Model: GFD212A

Material Number: 3BHE020356R0101

Series: ABB AC 800M (belongs to Freelance DCS/PLC platform)

Function: Redundant controller / processor module, with triple 32-bit CPU voting

Weight: Approximately 1.2–1.9 kg

Appearance: Standard card, green PCB, with blue relays / isolation zone

Core Hardware Parameters

Processor: 3×32-bit CPU @ 260 MHz (triple redundant voting)

Redundancy Mode: 1:1 Hot Standby (with no interruption of operation), non-disruptive switching

Scan Cycle: 20 ms (fast) / 100 ms (standard)

Communication:

Ethernet: 100 Mbps / 1 Gbps (multicast)

Integrated PROFIBUS DP master / slave, PROFINET I/O

Power Supply: 24 V DC ±10%

Operating Temperature: -25 ℃ ~ +70 ℃

Protection: IP20 (installed in cabinet)

Main Functions

Triple CPU Redundancy: Triple-core voting, single CPU failure does not affect operation, high reliability.

Hot Standby Redundancy Control: Dual-module 1:1 redundancy, automatic fault switching, zero downtime.

Multi-protocol Communication: Native support for Ethernet/IP, PROFIBUS, PROFINET, suitable for multi-system integration.

Real-time Control and Diagnosis: High-speed scanning, fault self-diagnosis, LED status indication, convenient for maintenance.

I/O Expansion: Combined with AC 800M I/O module, build a complete DCS/PLC system.

Typical Applications

Electricity (thermal power / hydropower / nuclear power)

Oil and gas (drilling, refining, pipelines)

Chemical, pharmaceutical, papermaking

Other process industries with high availability and fault-tolerant requirements