GE IS220PAICH2B

Product Overview

IS220PAICH2B is a single-slot I/O processor board based on the CPCI architecture. As the core component of the Mark VIe distributed I/O system, it is responsible for connecting the controller with the analog devices on site.

PAIC is a hybrid board that can handle 10 analog input channels and 2 analog output channels. It communicates with the controller via Ethernet, enabling the collection, processing of on-site signals, and the output of control instructions.

PAIC serves as a bridge connecting the upper-level control network and the lower-level on-site equipment, supporting simplex, dual, and TMR control architectures.

Product Function Features

Dual Network Port Redundant Communication

The IS220PAICH2B is equipped with two independent 10/100Base-T Ethernet ports, ENET1 and ENET2. It supports dual network cable connections. When one network fails, the other can seamlessly take over to ensure the continuity of control signals.

High Precision Signal Processing

The built-in 16-bit analog-to-digital converter and 14-bit digital-to-analog converter offer extremely high resolution, enabling the capture of minute changes in on-site signals.

Hardware Watchdog and Self-Diagnosis

The onboard hardware watchdog timer, combined with power-on self-test and continuous operation monitoring, can promptly detect hardware faults and trigger alarms.

Electronic ID Matching

The onboard electronic ID chip automatically reads and verifies the hardware version compatibility with the terminal board upon power-on, preventing control errors caused by incompatible software and hardware.

Compressor Stall Detection

The firmware includes a dedicated algorithm that monitors the first 4 analog input channels to determine whether the compressor has stalled in real time and can directly trigger trip protection.

Hot Swap Support

Support for online replacement. In the absence of power to the system, the board card can be directly unplugged and plugged in, greatly facilitating maintenance and fault handling.

Product evolution and technological development

From Mark VI to Mark VIe

The predecessor of PAIC was the VAIC board card in the Mark VI system. The biggest technological leap was in the communication interface. VAIC used the VME bus, while PAIC switched to Ethernet. This enabled PAIC to have a longer transmission distance and higher data throughput.

Architecture changes

PAIC adopted the CPCI industrial standard architecture, which has better shock resistance and modular characteristics compared to the VME bus.

Future trends

Although GE is currently promoting the Mark VIeS platform, PAIC, as the main I/O board card for Mark VIe, is still in a mature and stable stage and is widely used in operating units worldwide.

Alternative compatibility

Direct substitutes

The upgraded or downgraded version of the same series of IS220PAICH2B, as long as it is correctly configured in ToolboxST, usually maintains the same physical size and interface definition.

Non-alternative items

The parts cannot be directly replaced by the I/O board cards of the Mark V or Mark VI systems because the bus architecture and communication protocol are completely different.

Compatibility requirements

This item must be used in conjunction with the IS200TBAIH1C analog terminal board.