IC693CMM302 | GE Series 90-30 Enhanced Genius Communications Module (GCM+)

Technical Overview

The IC693CMM302 (Part Number: IC693CMM302) is an advanced network interface designed to integrate a Series 90-30 PLC into a Genius I/O distributed system. This module facilitates the exchange of Global Data, allowing the host controller to share data broadcast packets with up to 31 other Genius-compatible devices on a single serial bus. Unlike standard communication cards, the Enhanced GCM+ provides improved throughput and diagnostic capabilities, making it a critical component for distributed control architectures involving multiple controllers and remote I/O blocks.

Hardware Specifications

The following parameters define the electrical and environmental constraints for the IC693CMM302:

• Module Series: Series 90-30

• Communication Interface: Genius Serial Bus

• Network Nodes: Maximum of 32 devices (including the GCM+)

• Backplane Power Consumption: Less than 300mA at 5V DC

• Visual Diagnostics: Dual LED indicators (OK for module health, COMM for network activity)

• Operating Temperature: 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit)

• Storage Temperature: -25 to 70 degrees Celsius (-13 to 158 degrees Fahrenheit)

• Relative Humidity: 5% to 95%, non-condensing

• Fault Management: Status bits for CPU monitoring and detailed error reporting

Network Capabilities and Integration

The IC693CMM302 operates by managing Global Data, which is automatically updated every bus cycle without requiring specific application-level programming for data transfers. It supports a variety of transmission media, including shielded twisted-pair (STP) cable and fiber optics (via external converters). While the module is installed in a Series 90-30 rack, it is fully compatible with Genius networks controlled by Series 90-70 or PACSystems controllers, acting as a bridge for seamless data synchronization across different hardware tiers.

Frequently Asked Questions

Does the IC693CMM302 require a specific slot in the Series 90-30 baseplate?

The module can be installed in any available I/O slot in either a local or expansion baseplate, provided the 5V power budget of the power supply is not exceeded.

What is the difference between Global Data and I/O data on this module?

The IC693CMM302 is primarily used for Global Data (inter-controller communication). If you need to control Genius I/O blocks directly as the bus controller, the IC693BEM331 Bus Controller module is the appropriate selection.