Description
Hard-Numbers: Technical Specifications
- Processor: 1.2 GHz AMD G-Series quad-core
- Memory: 4 GB DDR3 SDRAM, 4 GB NAND flash
- OS: QNX Neutrino RTOS
- Ports: 5× 10/100/1000 Ethernet (RJ45) + 1× USB
- Protocols: IONet, UDH, TCP/IP, Modbus TCP, Profinet
- Power: 24 VDC (±10%), 25 W max
- Cooling: Passive convection (fanless)
- Temp: -40°C to +85°C
- Dimensions: 168 × 150 × 55 mm (6.6 × 5.9 × 2.17 in)
- Weight: ~0.6–1.0 kg
- Certifications: UL, CE, cULus, DNV, IEC 61000 (EMC)
- Redundancy: Dual (simplex/dual) support; not TMR/SIL

IS420UCSCH1A
The Real-World Problem It Solves
Older single/dual-core controllers lack the performance for modern control loops, high-speed I/O, and cloud data. delivers quad-core power in a compact, rugged form for standard (non-safety) turbine/DCS control with Predix edge connectivity.Typical Applications:
- Gas/steam turbine standard control (Mark VIe)
- Compressor/pump control
- Process automation (power, oil/gas, water)
- Edge data acquisition & Predix cloud integration
Hardware Architecture & Logic Flow
- No local I/O: All I/O via redundant IONet/UDH networks
- Quad-core QNX: Parallel processing for control, comms, diagnostics
- Redundant peer sync: <1 ms skew for seamless failover
- EFA (Embedded Field Agent): Secure edge-to-cloud (Predix) data pipe
- Hardware watchdog: Automatic fault recovery
Field Service Pitfalls (Rookie Mistakes)
1. Mixing with Safety Controllers
- Don’t pair with UCSB (SIL) for safety logic. UCSC = standard control only (not SIL rated).
- Rule: Use UCSB-series (e.g., IS420UCSBH4A) for SIS/ESD; UCSC for standard control.
2. Inadequate Cooling Clearance
- Passive cooling needs airflow. Blocked heatsinks → thermal throttling & crashes.
- Fix: Mount vertically; 50 mm clearance top/bottom; cabinet ventilation.
3. Firmware Mismatch
- Loading Safety ToolboxST bricks the unit. Use ControlST (not Safety ToolboxST).
- Rule: Match firmware to controller type (standard vs safety).
4. Network Overload
- 5× GbE ports but IONet/UDH must be isolated.
- Rule: Separate control, I/O, and HMI networks; avoid unmanaged switches.

IS420UCSCH1A
Commercial 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.


