Description
GE IC697CMM742-CA – Advanced Communication & Memory Module for Series 90-70 PLC
Product Description
The GE IC697CMM742-CA is a dual-functional communication and memory module specifically engineered for GE’s Series 90-70 PLC systems, integrating high-speed data transmission capabilities with reliable non-volatile memory storage for industrial automation applications. As a key integration component in GE’s legacy Series 90-70 ecosystem, the GE IC697CMM742-CA bridges the gap between PLC controllers, external devices, and data storage, enabling seamless connectivity with SCADA systems, HMIs, and remote monitoring platforms. What sets the GE IC697CMM742-CA apart is its all-in-one design that eliminates the need for separate communication and memory modules, streamlining system architecture and reducing hardware costs. The GE IC697CMM742-CA maintains full compatibility with all Series 90-70 CPU modules and control head stations, making it an ideal upgrade for legacy systems and a cost-effective solution for new installations. Whether deployed in manufacturing plants, power distribution facilities, or process control systems, the GE IC697CMM742-CA delivers stable communication and secure data storage essential for 24/7 industrial operations.
Product Parameters
| Parameter Category | Specifications |
|---|---|
| Brand & Model | GE IC697CMM742-CA |
| Product Type | Communication & Memory Module for GE Series 90-70 PLC |
| Communication Interfaces | 1 x RS-232 serial port; 1 x RS-485 serial port; 1 x parallel printer port |
| Supported Protocols | Modbus RTU, ASCII, DF1, GE SNP (Series 90 Network Protocol) |
| Memory Capacity | 2 MB non-volatile flash memory (for program storage, data logging, and configuration files) |
| Memory Retention | 10 years minimum (without power supply) |
| Operating Voltage | 5 VDC (powered directly from Series 90-70 backplane) |
| Power Consumption | 1.5 W typical |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Resistance | 5% – 95% non-condensing |
| Compatibility | Fully compatible with GE Series 90-70 CPU modules and control head stations (IC697CHS782, IC697CHS7906) |
| Form Factor | Rack-mounted; single-slot design for Series 90-70 standard racks |
| Dimensions (W x H x D) | 36 mm x 127 mm x 225 mm |
| Certifications | UL 508, CE, IEC 61131-2, ISO 9001, RoHS compliant |
| Weight | 0.32 kg |
Advantages and Features
- Dual-Functional Design: The GE IC697CMM742-CA combines communication and memory capabilities in one module, eliminating the need for separate hardware components, reducing slot occupancy in control racks, and lowering overall system costs.
- Multi-Protocol Serial Communication: Supports RS-232/RS-485 serial ports with native compatibility for Modbus RTU, ASCII, and GE SNP protocols, enabling seamless integration with legacy industrial devices, HMIs, and remote I/O systems.
- Secure Non-Volatile Memory: 2 MB flash memory retains program files, data logs, and configurations for up to 10 years without power, ensuring critical industrial data is preserved during power outages or system shutdowns.
- Seamless Series 90-70 Compatibility: Fully integrated with all Series 90-70 CPU modules and control head stations, the GE IC697CMM742-CA requires no custom firmware or adapters, allowing plug-and-play installation and minimizing configuration errors.
- Industrial-Grade Reliability: Built to withstand temperature fluctuations, humidity, and electromagnetic interference, the module maintains stable performance in harsh industrial environments like manufacturing shops and outdoor utility stations.
- Simplified Data Management: The integrated memory enables local storage of program backups and process data, reducing reliance on external storage devices and facilitating quick system recovery in case of software corruption.
Application Cases in Application Fields
- Food Processing Plant: A regional food manufacturer deployed the GE IC697CMM742-CA in its packaging line PLCs to connect HMI panels and log production batch data. The RS-485 port synchronized with temperature controllers, while the 2 MB memory stored 6 months of batch records for regulatory compliance, eliminating the need for external data loggers.
- Water Distribution System: A municipal water authority integrated the GE IC697CMM742-CA into its pump station PLCs to enable remote communication with a central SCADA system via Modbus RTU. The non-volatile memory preserved pump operation logs during power outages, simplifying maintenance and troubleshooting.
- Legacy Machine Tool Upgrade: A metalworking shop used the GE IC697CMM742-CA to upgrade its vintage Series 90-70 PLC-equipped CNC machines. The module’s RS-232 port connected to modern HMIs, while the flash memory stored updated machining programs, extending the machines’ service life by 5+ years.
- Chemical Tank Farm Monitoring: A chemical storage facility deployed the GE IC697CMM742-CA in its tank level control PLCs. The RS-485 port communicated with level sensors across multiple tanks, and the integrated memory logged tank temperature and pressure data, ensuring compliance with hazardous material storage regulations.
Comparisons with Competing Products
| Feature | GE IC697CMM742-CA | Competitor A (Brand X COM-MEM70) | Competitor B (Brand Z CMM-9070) |
|---|---|---|---|
| Functional Integration | Communication + memory (dual-function) | Single-function (communication only) | Single-function (memory only) |
| Serial Ports | 2 (RS-232 + RS-485) | 1 (RS-485 only) | None |
| Memory Capacity | 2 MB non-volatile flash | No built-in memory | 1 MB non-volatile flash |
| Supported Protocols | 4 (Modbus RTU/ASCII, DF1, GE SNP) | 2 (Modbus RTU/ASCII) | N/A |
| Series 90-70 Compatibility | Full native compatibility | Requires adapter module | Partial (limited CPU support) |
| Power Consumption | 1.5 W | 2.1 W | 1.8 W |
The GE IC697CMM742-CA outperforms competitors with its unique dual-function design, eliminating the need for separate modules and saving rack space. It offers more serial ports, broader protocol support, and larger memory capacity than single-function alternatives, while its full native Series 90-70 compatibility avoids the hassle of adapters or custom configuration.
Selection Suggestions and Precautions
- Selection Suggestions:
- Choose the GE IC697CMM742-CA for Series 90-70 PLC systems needing both serial communication and local data storage, such as legacy machine upgrades, batch processing lines, and remote monitoring applications.
- Opt for this module if you want to reduce hardware complexity and slot occupancy in control racks, as its dual-function design replaces two separate components (communication and memory modules).
- Prioritize the GE IC697CMM742-CA for regulatory-compliant industries (food, chemical, water treatment) thanks to its secure non-volatile memory for data logging and audit trails.
- Precautions:
- Ensure the module is installed in a genuine GE Series 90-70 rack and paired with compatible CPU modules to avoid communication or memory access errors.
- Verify that the Series 90-70 backplane provides stable 5 VDC power, as voltage fluctuations can corrupt stored data or disrupt serial communication.
- Avoid operating the module outside the 0°C to 60°C temperature range, as extreme temperatures may degrade memory retention and serial port performance.
- Regularly back up the module’s flash memory data to an external device, even though it has long-term retention, to prevent data loss in case of module failure.
- Use shielded cables for RS-485 connections to minimize electromagnetic interference, which can cause signal degradation in industrial environments.
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