The GE IC220ALG220, also cataloged as the IC220ALG220 VersaPoint Analog Input Module, operates as a dedicated hardware component for multi-range analog signal acquisition within VersaPoint I/O platforms. The module interfaces two independent single-ended analog input channels, conditioning current and voltage field signals into digitized measurement formats for real-time PLC backplane processing.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC220ALG220 |
| Brand | GE |
| Origin | USA / Standard Industrial Operations |
| Product Type | Analog Input Modules |
| Input Channels | 2 single-ended analog channels |
| Analog Resolution | 15-bit |
| Current Input Ranges | 0 to 20 mA, -20 to +20 mA, 4 to 20 mA |
| Voltage Input Ranges | 0 to 10 V, -10 to +10 V |
| Input Filter Limit Frequency | 40 Hz |
| Sensor Wiring Support | 2-wire and 3-wire connections |
| Operating Temp | -25 to +55 deg C |
| Storage Temp | -25 to +85 deg C |
| Dimensions | Standard VersaPoint module footprint |
| Weight | Standard VersaPoint module weight |
| Power Consumption | Standard VersaPoint local bus power draw |
Backplane Bus Communication Velocity and Deterministic Networks
The internal conversion architecture digitizes field variables at 15-bit resolution and transfers data across local backplane buses to preserve cycle timing across EtherNet/IP and Profinet deterministic networks. High-density I/O scaling allows flexible mixing of analog and discrete expansion nodes on a single rail segment. Firmware flash compatibility ensures synchronized parameter assignment, channel processing, and register alignment between the expansion module and host controllers.
Frequently Asked Questions
Q: Can the two input channels on the IC220ALG220 be configured with different signal ranges?
A: Yes, each of the two analog channels supports independent range selection, allowing one channel to read 4 to 20 mA current loops while the second reads a -10 to +10 V voltage signal.
Q: What is the hardware analog-to-digital resolution supported by the module?
A: The module operates with 15-bit analog resolution, which remains consistent across both standard numerical representation formats and all measuring ranges.
Q: What sensor wiring schemes are supported by the input terminal connections?
A: The module accepts direct termination for both 2-wire transmitter loops and 3-wire sensor configurations without external signal conditioning.
Field Installation Guidelines
- Power Disconnection: Isolate local terminal block power and VersaPoint local bus power before attaching or removing the module from the mounting DIN rail.
- Signal Cable Shielding: Terminate twisted-pair signal cable shielding directly at the designated local bus ground reference point to prevent high-frequency noise from corrupting 15-bit conversion values.
- Separation of Field Wiring: Route low-level analog input cables in dedicated cable trays separated from high-voltage AC conductors and drive output lines.
- Filter Considerations: Account for the internal 40 Hz low-pass hardware filter response limit when programming fast-transient analog feedback loops in host logic.
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