GE IC800SSI228RD2-CE

Description

Product Overview

The GE IC800SSI228RD2-CE is a discrete I/O module designed for GE’s PACSystems RX3i and VersaMax PLC families when used within a VersaMax distributed I/O (DIO) rack. This module functions as a 28-point sinking/sourcing input and sourcing output combination block, providing a high-density solution for interfacing with a wide array of field devices in a single compact unit. The GE IC800SSI228RD2-CE integrates both sensing and control capabilities, allowing a single module to read the status of devices like pushbuttons and proximity sensors (inputs) and simultaneously command actuators like solenoid valves and indicator lights (outputs). Its design leverages the flexibility of the VersaMax I/O system, offering a cost-effective and space-saving solution for machine control panels where a mix of digital signals is required. The robust construction and clear diagnostics of the GE IC800SSI228RD2-CE make it a reliable choice for distributed I/O applications across various industries.

Product Parameters

• Series: GE VersaMax PLC & Distributed I/O / PACSystems RX3i DIO.
• Module Type: 28-Point Sink/Source Input and Sourcing Output Combination Module.
• Point Configuration: Typically 16 discrete inputs and 12 discrete outputs in a single module. The exact grouping (e.g., 16 In / 12 Out) is defined by the module’s part number.
• Input Type: 24V DC, Sink/Source (Universal). Can be wired as either sinking (PNP) or sourcing (NPN) depending on the common wiring.
• Output Type: 24V DC, Sourcing (provides +24V).
• Current Rating: Inputs: typically 8-10 mA per point; Outputs: typically 0.5A per point with a group or total module current limit.
• Isolation: Optical isolation between field side and logic side, and typically between groups of points.
• Status Indication: LED status indicator for each individual input and output point.
• Connection: Removable plug-in terminal blocks for easy wiring.
• Bus Communication: Interfaces via a VersaMax bus interface module (e.g., IC200GBI001) to the central PLC using Genius Bus or Profibus DP protocols.
• Certification: CE marked for compliance with European directives.

Advantages and Key Features

The primary advantage of the GE IC800SSI228RD2-CE is its high point density and mixed functionality, which significantly reduces the number of modules, backplane slots, and bus drop connections required for a given application, lowering hardware and installation costs. The universal (sink/source) input design provides exceptional wiring flexibility, allowing it to interface directly with both PNP and NPN sensors without hardware changes, simplifying spare parts inventory. The module offers clear, per-point LED diagnostics for rapid troubleshooting during commissioning and operation. Its compact form factor is ideal for space-constrained distributed I/O enclosures located close to the machine process. The GE IC800SSI228RD2-CE is fully supported by GE’s Proficy Machine Edition programming software, allowing for easy configuration and integration into the control strategy. Its rugged design ensures reliable performance in typical industrial environments.

Application Cases in Industry

The GE IC800SSI228RD2-CE is ideally suited for distributed control applications on factory floors and industrial machinery. Common use cases include:

• Material Handling Stations: Controlling a small conveyor section or a pick-and-place unit, where inputs read photo-eye sensors and limit switches, and outputs control divertor solenoids and motor starter coils.
• Packaging Machine Modules: Managing a single station on a larger line, interfacing with product presence sensors, vacuum cup sensors (inputs), and controlling glue valves, pushers, and clamp actuators (outputs).
• Machine Tool Peripherals: Controlling a tool changer or a parts feeder adjacent to a CNC machine, reading tool-in-place sensors and outputting signals to pneumatic cylinders.
• Process Skid I/O: Serving as the local I/O cluster on a skid-mounted system (e.g., a mixing station), wired directly to local devices and communicating back to a central PACSystems RX3i controller.

Comparison with Competing Products

Compared to using separate dedicated input and output modules, the GE IC800SSI228RD2-CE offers superior space and cost efficiency, though it provides less flexibility in the exact ratio of inputs to outputs. It competes directly with other manufacturer’s combination I/O blocks, such as the Siemens ET 200SP CM PtP module or the Rockwell Automation Point I/O combination modules. A key differentiator for the GE IC800SSI228RD2-CE is its universal sink/source input circuitry, which is not always available in competitor’s combination modules, potentially requiring separate module types for different sensor technologies. Within the GE ecosystem, it provides a more integrated solution for VersaMax DIO than attempting to mix and match discrete modules from other series.

Selection Suggestions and Precautions

1. I/O Count Verification: Confirm the exact point configuration (e.g., 16 In / 12 Out) matches your application needs. The model number suffix is critical.
2. Sensor/Actuator Compatibility: For inputs, ensure your field sensors (e.g., prox switches, photocells) are 24V DC and verify their wiring type (sourcing PNP or sinking NPN) to correctly connect the common terminal. For outputs, verify the 0.5A per point rating is sufficient for your loads (solenoids, relays, indicators). Use interposing relays for higher-current loads.
3. Power Supply Calculation: Carefully calculate the total 24V DC current required for all connected input devices (sensor load) and output loads. The local power supply in the distributed I/O enclosure must be sized to handle the combined load of the GE IC800SSI228RD2-CE and any other modules.
4. Fusing and Protection: Although the module has electronic protection, it is good practice to use individual or group fuses on the output circuits to protect the module’s internal electronics from sustained overloads or short circuits in the field wiring.
5. Bus Interface Requirement: This module cannot communicate directly with a PLC CPU. It requires a compatible VersaMax bus interface module (like a Genius or Profibus interface) to serve as the gateway between the module’s backplane and the network.
6. Group Commons: Pay close attention to the common terminal groupings for both inputs and outputs as shown in the wiring diagram. Incorrect common wiring is a frequent cause of module malfunction.

IC697ACC821 GE PLC
IC697ADS701 GE PLC
IC697ALG320 GE PLC