GE IS220PTURH1B

Processor & Memory

CPU: Freescale MPC8349 @ 667 MHz
Operating System: QNX Neutrino real-time OS
Flash: 128 MB onboard
RAM: 256 MB DDR2

I/O Channels

Analog Inputs: 16 universal, each configurable for
- 0–20 mA, 4–20 mA, ±20 mA
- ±10 V, 0–10 V, ±5 V
Analog Outputs: 8 isolated
- 4–20 mA or 0–10 V, individually selectable
Digital Inputs: 32 opto-isolated, 24 V DC
Digital Outputs: 16 relay, 24 V DC, 2 A per point

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Communication

Ethernet: Two 10/100BASE-T ports for redundant control networks
Serial: RS-232 service port for local diagnostics
Protocols: Modbus TCP, proprietary GE Ethernet Global Data (EGD)

Environmental Ratings

Operating Temperature: –20 °C to +65 °C
Storage Temperature: –40 °C to +85 °C
Humidity: 5 %–95 % non-condensing
Shock: 30 g, 11 ms half-sine
Vibration: 2 g, 10–500 Hz
Protection Class: IP67, conformal-coated PCB for harsh environments

Mechanical Data

Dimensions: 170 mm × 105 mm × 32 mm
Weight: 120 g
Connector: 62-pin DC connector to terminal board

LED Indicators

PWR: Power OK
RUN: CPU operational
COMM: Network activity
TRIP: Trip command active
FAULT: Hardware or configuration error

Functional Features

Trip Logic: Executes primary protection algorithms in <10 ms
Redundant Networks: Dual Ethernet for seamless switchover
Hot-Swap: Replaceable under power without turbine shutdown (bypass mode)
Auto-Configuration: Downloads firmware and parameters from controller on power-up
Diagnostics: Continuous self-test, open-wire detection, over-range monitoring

Typical Applications

Power Plants: Emergency trip protection for gas and steam turbines
Petrochemical: Compressor and generator sets requiring high-speed safety shutdown
Marine: Shipboard turbine propulsion systems
Industrial Cogeneration: CHP units demanding strict safety compliance

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