SPECIFICATIONS
Part No: IC697CMM742-FD
Manufacturer: General Electric
Function: Ethernet Interface Module
Series: Mark I and II
Repair: 3-7 Day
Availability: In Stock
Country of Manufacturer: United States (USA)
Functional Description
IC697CMM742-FD is an Ethernet Interface Module developed by GE. It is a part of Mark I and II control system. It serves as a key networking component for GE's Series 90-70 PLC systems. This module facilitates high-speed communication and data exchange within Ethernet LAN environments, supporting robust industrial applications that rely on reliable network connectivity.
Features and Connectivity
- Three Independent Ports: The module features three separate network ports that support simultaneous communication, allowing parallel data paths for increased throughput and reduced latency. This setup enhances system performance and provides redundancy for critical applications.
- IEEE 802.3 Compatibility: The module adheres to IEEE 802.3 Ethernet standards, ensuring compatibility with most industrial Ethernet networks. It does not include built-in transceivers; instead, it requires external AUI (Attachment Unit Interface) transceivers depending on the physical medium used.
- Supported Ethernet Media Types:
Through the use of 802.3-compatible transceivers connected to the 15-pin AUI port,
- 10Base5 (Thick Ethernet / Thicknet) - Suitable for backbone cabling in legacy networks.
- 10Base2 (Thin Ethernet / Thinnet) - Cost-effective for short-distance or daisy-chained setups.
- 10BaseT (Twisted Pair) - Most common; ideal for modern structured cabling systems.
- 10BaseF (Fiber Optic) - Suitable for long-distance and EMI-sensitive environments.
- 10Broad36 (Broadband Ethernet) - Designed for broadband coaxial systems (less commonly used today).
- Data Handling and Protocols: The module supports TCP/IP protocol stacks, enabling it to participate in client-server architectures, including Modbus TCP/IP and custom proprietary communications. Its internal firmware is optimized for deterministic data transfer in automation systems.
- System Integration: It integrates directly into a Series 90-70 PLC rack and communicates with the CPU over the backplane bus. Configuration is typically performed using GE’s Logicmaster 90-70 or Proficy Machine Edition programming tools, where IP settings, I/O addressing, and data transfer parameters can be defined.
- Diagnostics and Monitoring: Offers status LEDs for link activity, collisions, and errors, aiding in quick diagnostics and network troubleshooting. System integrators can also use SNMP or proprietary GE utilities for advanced diagnostics and performance monitoring.
Preloaded and Upgradable Firmware
The Ethernet interface module is preloaded with firmware, allowing for easy setup and efficient installation. Furthermore, the firmware is designed for indefinite maintenance, supporting upgrades to meet evolving network and control system requirements. Communication protocols include configuration/logic-based Ethernet global data and TCP/IP through the Service Request Transport Protocol (SRTP), along with comprehensive PLC programming, configuration, and station management tools.
Diagnostic LEDs and Indicators
The module includes four main LED indicators that convey real-time operational statuses:
- MODULE OK: Lights up when the module has passed diagnostics and is functioning correctly. It blinks during diagnostic checks or indicates special operating conditions, while remaining off if there is a failure.
- LAN ONLINE: Indicates network connectivity status. It is on when the module is connected and ready for network communication, blinks during data transfer, and turns off if disconnected, disrupted, or malfunctioning.
- SERIAL ACTIVE: Shows data transfer activity on the RS-485 serial port. It blinks during data transfer and remains off during inactivity.
- STATUS OK: Indicates normal operation. It is on when the module is functioning correctly and turns off if an event occurs that requires user attention.
User-Accessible Maintenance Components
- LED Indicators: Four LEDs for real-time diagnostics and network activity.
- Restart Pushbutton: Provides module resetting and special operation options.
- Station Manager (RS-232) Serial Port: Used for configuration and maintenance tasks.
- Service Option Connector: An auxiliary port for specific service needs.
- Software Load (RS-485) Serial Port: Supports firmware updates and configurations.
- Network Ports: Supports multiple Ethernet standards, including 10BaseT, AUI, and 10Base2.
- MAC Address Label: Located inside the faceplate for identification.
- Replaceable +12 VDC Fuse: Offers electrical protection.
- Onboard Transceiver Power Disable Jumper (JP7): Typically uninstalled, this disables transceiver power if needed.
WOC is happy to assist you with any of your GE requirements. Please contact us by phone or email for pricing and availability on any parts and repairs.
FREQUENTLY ASKED QUESTIONS
What is IC697CMM742-FD?
It is an Ethernet Interface Module developed by GE.
Which Ethernet standards does the Module support?
This module supports multiple Ethernet standards, including 10Base5 (Thicknet), 10Base2 (Thinnet), 10BaseT (Twisted Pair), 10BaseF (Fiber), and 10Broad36 (Broadband), providing flexibility in different network environments. An 802.3-compatible transceiver is required for each type of Ethernet connection.
Does the module come with preloaded firmware?
Yes, it comes with preloaded firmware for straightforward installation. The firmware is also upgradeable, enabling long-term support and compatibility with updated control systems.
How does the module handle communication protocols?
It supports Ethernet Global Data (EGD) for data exchange, TCP/IP communication via SRTP (Service Request Transport Protocol), and provides tools for full PLC programming and station management.
What functions does the restart button perform?
The restart button has four main functions- LED test, general restart, restart to enter software load state (for firmware updates), and restart to enter maintenance state.
How do I know if the module is connected to the network?
When connected and ready for communication, the LAN ONLINE LED will remain on. It will blink during data transfers and will turn off if there is a disconnection or network malfunction.
