Description
Hard-Numbers: Technical Specifications
- Protocol Support: IONet, IEEE 1588 PTP, TCP/IP
- Ethernet Ports: 4 × 10/100 Mbps RJ45
- Processor: 1200 MHz Intel EP80579 (quad-core)
- Memory: 256 MB DDR2 ECC, 2 GB NAND flash
- Operating Temperature: 0°C to +65°C
- Isolation Rating: 1500 Vrms port-to-backplane
- Power Input: 18–30 VDC
- Power Draw: 17 W typical, 28 W peak
- OS: QNX Neutrino RTOS
- Environmental: Class I Div 2, Zone 2, G3 conformal coating
- Dimensions: 6.4 × 8.1 × 1.4 in (163 × 206 × 36 mm)
- Weight: 2.9 lbs (1.3 kg)
IS420UCSBH3A
The Real-World Problem It Solves
Older 600 MHz controllers choke on modern high-speed turbine and SIS algorithms. This 1200 MHz unit eliminates logic execution bottlenecks and IONet communication lag.
Where you’ll typically find it:
- Primary/backup control in gas/steam turbine packages
- Safety instrumented systems (SIS) in Mark VIeS configurations
- High-speed IONet gateways in offshore and refining DCS
Bottom line: It delivers deterministic control for complex, fast-scan applications without fan or battery failure points.
Hardware Architecture & Under-the-Hood Logic
This is a self-contained, fanless controller with no local I/O. All processing is local; full galvanic isolation separates network, logic, and power domains.
- Receives process data from remote I/O via dual redundant IONet paths.
- Executes control, interlock, and SIS logic at 1200 MHz.
- Synchronizes state with redundant peer via IEEE 1588 PTP (≤100 μs).
- Writes outputs back to I/O packs and field actuators.
- Triggers front-panel LEDs for power, fault, link, and over-temperature (OT) status.
Field Service Pitfalls: What Rookies Get Wrong
Inadequate Heat-Sink ClearanceThis module runs hotter than the 600 MHz BH1A. Blocking fins causes OT shutdowns and intermittent IONet faults.
- Field Rule: Mount vertically; maintain 50 mm clearance top/bottom. Ensure unobstructed airflow.
Non-Redundant IONet WiringRookies use only one port. A single bad cable or switch port takes down the controller.
- Quick Fix: Terminate both IONet A and B to separate switches for redundant paths.
Firmware/ToolboxST MismatchLoading wrong firmware locks the module in FAULT with no comms.
- Field Rule: Match firmware revision to ToolboxST version before power-up. Verify checksum post-load.
IS420UCSBH3A
Commercial Availability & Pricing Note
Please note: The listed price is for reference only and is not binding. Final pricing and terms are subject to negotiation based on current market conditions and availability.
