GE Fanuc IC697CMM742-LL Series 90-70 Datasheet & Technical Manual
Manufacturer: GE Fanuc
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Part Number: IC697CMM742-LL
Condition：New with Original Package
Product Type: Communications Coprocessor Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
GE Fanuc IC697CMM742-LL Ethernet Interface Module
The GE Fanuc IC697CMM742-LL, also cataloged as the IC697CMM742 Communications Coprocessor Module (CMM), operates as a dedicated hardware component for network data routing and protocol execution within GE Fanuc Series 90-70 Type 2 PLC platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC697CMM742-LL / IC697CMM742 |
| Brand | GE Fanuc (General Electric / Emerson Automation) |
| Origin | USA |
| Weight | 1.0 kg (2.2 lbs) |
| Dimensions | 203.2 mm x 106.7 mm x 40.6 mm |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 7.5 W (1.5 A @ 5 VDC) |
| Module Type | Communications Coprocessor Module (CMM) |
| Processor Architecture | Embedded 32-bit RISC coprocessor |
| Base System RAM | 512 KB |
| Non-Volatile Flash | 256 KB |
| Ethernet Port Interface | 1 x standard 15-pin AUI connector |
| Network Transceiver | User-supplied 802.3-compatible transceiver |
| Supported Media Standards | 10BaseT, 10Base5, 10Base2, 10BaseF, 10Broad36 |
| Effective Data Rate | Up to 10 Mbps (Half-Duplex) |
| Serial Interfaces | 2 x serial ports (RS-232 / RS-485 compatible) |
| Supported Protocols | TCP/IP, SRTP, Ethernet Global Data (EGD), Modbus RTU/ASCII |
| Hardware Diagnostic Controls | 1 x multi-function restart push button |
| Diagnostic Status LEDs | LAN ONLINE, MODULE OK, SERIAL ACTIVE, STATUS OK |
Backplane Bus Communication Velocity and Network Integrity
The GE Fanuc IC697CMM742-LL incorporates an independent 32-bit RISC coprocessor designed to isolate communication layer processing from the main PLC backplane bus execution cycle. By handling data packaging locally within its 512 KB RAM bank, the module ensures that network traffic variations do not degrade the core logic scan time or affect overall system I/O density scaling. Network physical layer transitions map via a 15-pin AUI interface to active transceivers, routing Ethernet Global Data (EGD) and SRTP telemetry packages across deterministic industrial paths without generating transmission latency on the parent CPU firmware flash compatibility layer.
Frequently Asked Questions
Q: What are the distinct operational functions assigned to the physical restart button? A: The module front panel includes a single tactile restart button that cycles through four predefined hardware configurations based on the duration and sequence of the press: standard module restart, execution of an internal LED illumination test, forced initialization into software load state for firmware updates, or direct entry into the hardware maintenance diagnostics mode.
Q: How do the LED indicators signal a localized network link failure versus an internal module fault? A: An internal hardware failure is indicated when the MODULE OK LED remains dark following power-up initialization. Conversely, a network link disruption or transceiver failure disables the LAN ONLINE LED, while the STATUS OK and SERIAL ACTIVE LEDs pulse dynamically during standard active backplane data polling.
Field Installation Guidelines
- Anti-Static Enclosure Protocols: Discharge all structural static electricity using a grounded wrist strap before handling the coprocessor circuit board. Insert the module into a single slot of the Series 90-70 backplane chassis with line power completely disconnected.
- Transceiver Mechanical Alignment: Connect the external 802.3 transceiver directly to the 15-pin AUI network port. Lock the slide latch mechanism completely to prevent mechanical displacement caused by high-frequency machinery vibrations.
- Serial Comm Cable Shielding: Terminate all serial lines using braided shielding networks connected directly to the cabinet earth ground bar. Keep signal pathways separate from high-voltage motor drive wires to prevent electromagnetic noise from injecting errors into Modbus or SRTP transactions.