Description
Product Overview
Honeywell 12‑SBUS is a high-density serial bus communication module for Experion PKS and ControlEdge systems. It provides 12 configurable digital channels that can function as input or output, offering strong isolation, SIL2/3 safety certification, and robust performance in noisy industrial environments. This module serves as a critical interface between field devices, I/O racks, and controllers, enabling secure, reliable communication over the Honeywell SBUS protocol.
Technical Specifications
| Feature |
Specification |
| Number of Channels |
12 configurable channels (DI or DO) |
| Supported Protocols |
Honeywell SBUS (RS‑485-based), multi-protocol compatibility |
| Input/Output Voltage |
0 / 24 V DC |
| Channel Isolation |
250 V DC optical isolation per channel |
| Safety Certification |
IEC 61508 SIL2/3 |
| Diagnostics |
Loop monitoring (open/short), power loss trip |
| Hot-Swap Capability |
Yes, supports replacement without system shutdown |
| Power Supply |
24 V DC via FTA (Field Terminal Assembly) |
| Environmental Rating |
IP20 (cabinet installation) |
| Operating Temperature |
–40 °C to +70 °C |
| Dimensions |
150 × 100 × 30 mm |
| Redundancy |
Supports dual SBUS modules with redundant power |
Key Features
High-Density I/O
Provides 12 independent digital channels in a single module, optimizing cabinet space and wiring efficiency.
Robust Isolation
Each channel features 250 V DC optical isolation, protecting signals from electromagnetic interference.
SIL2/3 Certified Safety
Designed for use in safety-instrumented systems, compliant with IEC 61508 standards.
Hot-Swappable Design
Can be replaced without shutting down the DCS, minimizing system downtime.
Integrated Diagnostics
Built-in monitoring identifies open or short circuits and detects power loss for fast troubleshooting.
Seamless System Integration
Acts as the communication hub connecting I/O racks to controllers in Experion PKS and ControlEdge systems.
Applications
-
Connecting digital I/O devices to Experion PKS / ControlEdge DCS networks
-
High-density field I/O integration in control cabinets
-
Monitoring and controlling sensors and actuators over SBUS protocol
-
Implementing SIL2/3 safety-instrumented system configurations
FAQ
Can 12‑SBUS be used with other PLCs?
No, it is designed specifically for Honeywell Experion PKS and ControlEdge systems. Compatibility with other platforms is not guaranteed.
How are the channels configured?
Each of the 12 channels can be set as digital input or output during system setup.
Does it support hot-swapping?
Yes, modules can be replaced without shutting down the DCS system.
What is the environmental rating?
The module is rated IP20 and should be installed in an enclosed cabinet for protection in harsh environments.
