Description
- Product Model: IS220PAICH2B
- Manufacturer: GE (General Electric)
- System Platform: GE Mark VIe & Mark VIeS Speedtronic Control Systems
- Functional Role: Analog input/output acquisition and signal conditioning module
- Analog Input Channels: Up to 10 analog inputs (configurable voltage/current types)
- Analog Output Channels: 2 outputs; first channel supports up to 200 mA loop output
- Input Signal Types: ±5 V, ±10 V, and 4-20 mA configurable inputs
- Resolution: Typical 16-bit ADC for inputs; high-precision output DAC
- Communication Interfaces: Dual Ethernet RJ-45 for I/O network integration
- Power Supply: 18–32 V DC range (system backplane/source dependent)
- Connector Interface: DC-37 pin connector to terminal boards
- Operating Temperature: –40 °C to +70 °C industrial grade
- Mounting: DIN-rail compatible bracket style mounting
- Diagnostics: Visual LED indicators for status and fault reporting
- Redundancy Support: Simplex and TMR configurations supported in system design
- Certifications: Standard industrial EMC and environmental ratings typical for turbine control components (system context dependent)
Technical Architecture & Functional Positioning
The IS220PAICH2B module serves as a high-performance analog I/O pack within the GE Mark VIe and Mark VIeS Speedtronic control ecosystems. Its primary function is to interface field-level analog sensors and actuators with the distributed control network. This role encompasses both precise signal acquisition from multiple analog sources and robust analog actuation via current outputs—particularly where higher current drive (up to 200 mA) is required for field instrumentation or control loops.
In hierarchical control system architecture, this analog I/O module sits at the field I/O layer. It translates real-world analog physical quantities such as pressure, flow, temperature, or speed into high-resolution digital data used by higher-level controllers. These inputs typically feed closed-loop control functions executed on central processors or redundant arrays of processors within the Mark VIe environment. Simultaneously, the module executes precise analog outputs that command actuators, valves, or other control elements, enabling responsive and stable plant operation.
A critical architectural feature is the dual Ethernet interface, which provides reliable high-speed data communication with master controllers and redundant I/O networks. This connectivity ensures deterministic transfer of signal data and supports the synchronization required in real-time automation systems. Built-in diagnostics, including status LEDs, enable rapid fault identification and reduce troubleshooting time during commissioning and maintenance cycles.
From an engineering perspective, the enhanced output capability (200 mA) distinguishes this revision (2B) from earlier analog I/O modules, enabling it to drive heavier loads without auxiliary amplifiers. This is particularly valuable in applications where analog control loops must source or sink significant current for demanding actuators. The module’s configurability—supporting voltage and current input types—simplifies integration across diverse sensor technologies without requiring external signal converters.
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