Email: sales@runshengdcs.com
WhatsApp / Wechat：+86 15383419322
Phone：+86 15383419322Description
The ABB 07KT98 is a high-performance Redundancy and Synchronization Module for ABB’s AC 800M distributed control system, engineered to enable seamless controller failover in mission-critical industrial applications. This module establishes deterministic synchronization between primary and standby controllers (PM861/PM864/PM865) with ≤50ns clock skew, ensuring uninterrupted process control during hardware failures or maintenance events. The 07KT98 utilizes fiber-optic links operating at 1.25 Gbps to replicate controller memory states every 10ms, enabling sub-100ms switchover for safety-critical systems like turbine controls and emergency shutdown sequences. Designed for 24/7 operation in harsh environments, it features industrial-grade components rated for -40°C to +70°C operation with conformal-coated PCBs resisting humidity, dust, and corrosive atmospheres in offshore platforms and power plants.
The ABB 07KT98 implements advanced diagnostics that continuously monitor synchronization health, detecting bit errors and fiber degradation before functional impact. Its hot-swappable design allows replacement without process interruption, while dual-redundant power inputs maintain operation during voltage transients. Compatible with Control Builder engineering tools, the module simplifies configuration of redundancy parameters and provides real-time status visualization for maintenance planning.
07KT98 ABB
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | 07KT98 |
| Manufacturer | ABB |
| Product Type | Redundancy Synchronization Module |
| System Platform | AC 800M DCS |
| Supported Controllers | PM861, PM864, PM865 |
| Sync Interface | 2 × 850nm Fiber-Optic (ST Connectors) |
| Data Rate | 1.25 Gbps per channel |
| Clock Synchronization | ≤50ns controller skew |
| Failover Time | <100ms (full process state transfer) |
| Memory Mirroring | 16MB replicated in 10ms cycles |
| Power Supply | 5V DC ±5% via backplane (2.5A max) |
| Operating Temperature | -40°C to +70°C (-40°F to 158°F) |
| Humidity Tolerance | 5–95% non-condensing |
| Vibration Resistance | 2g @ 10-150Hz (IEC 60068-2-6) |
| Certifications | UL 508, CE, DNV-GL |
| Dimensions | 128mm × 55mm × 117mm |
Main Features and Advantages
Deterministic Failover: Hardware-based state synchronization with CRC-32 validation ensures data integrity during controller switchover. The ABB 07KT98‘s dual-watchdog system detects processor faults within 15ms, triggering automatic transfer to standby unit. Fiber-optic isolation eliminates ground loop issues in electrically noisy substations.
Advanced Diagnostics: Continuous bit error rate (BER) monitoring alerts on degrading fiber links. The module’s “Sync Health” indicator provides instant visual status via multicolor LED. Integrated self-tests validate memory mirroring logic during startup without process impact. Hot-swap capability reduces mean time to repair (MTTR) by 80% compared to wired solutions.
Application Field
The ABB 07KT98 ensures continuous operation in:
Power Generation: Gas/steam turbine control during grid disturbances
Oil & Gas: Subsea production control with DNV-GL compliance
Chemical Processing: Batch reactor safety interlocks
Water Treatment: Pump station control during storms
Metals Industry: Blast furnace safety systems
In offshore installations, it maintains control during lightning-induced voltage spikes where copper-based systems fail.
07KT98 ABB
Related Products
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