GE Fanuc (Emerson) Series 90-70 PLC CPU Module

Technical Specifications

• Manufacturer: GE Fanuc (Emerson Automation)
• Product Line: Series 90-70 PLC
• Processor: 32-bit 80486DX4 microprocessor
• Clock Speed: 96 MHz
• Memory:
  • 1 MB battery-backed CMOS RAM
  • 256 KB non-volatile user flash memory
• Floating Point Support: Yes
• Boolean Instruction Speed: 0.4 µs per instruction
• Max I/O Capacity: 12,000 mixed points
• Max Analog I/O: 8,000 points
• Communication Ports:
  • Port 1: RS-232
  • Ports 2 & 3: RS-485 (independent)
• Power Requirements:
  • 100 W AC/DC
  • 90 W DC
• Battery:
  • Lithium with 5-year shelf life
  • Memory Retention: 6 months (no power)
• Clock Accuracy:
  • Day Clock: ±3.5 seconds/day
  • Elapsed Time Clock: ±0.01%
• Operating Temperature: -10°C to +55°C
• Dimensions: 110 × 60 × 67 mm
• Weight: 0.91 kg (2.00 lbs)

Key Features

1. High-Speed Processing: The 96 MHz 32-bit processor enables rapid execution of complex control algorithms and floating-point math operations.
2. Large Memory Capacity: 1 MB RAM and 256 KB flash memory support extensive programming, data logging, and recipe storage.
3. Multi-Port Communication: Three independent serial ports (RS-232/485) provide flexible connectivity to HMIs, SCADA, and other PLCs.
4. Robust Reliability: Designed for harsh industrial environments with a wide temperature range and long battery life.
5. Advanced Security: Includes software password protection and a physical memory protect key switch to safeguard programs and data.
6. Status Monitoring: Seven front-panel LED indicators provide real-time diagnostics of CPU, communication, and system status.

Application Scenarios

• Manufacturing Automation: Assembly lines, robotic cells, and material handling systems.
• Process Control: Chemical, oil & gas, pharmaceutical, and water treatment plants.
• Power Generation: Turbine control, power distribution, and grid monitoring.
• Infrastructure: Building automation, HVAC, and smart city systems.
• Motion Control: High-speed positioning, synchronized motion, and CNC machinery.

Compatibility

• GE Fanuc Series 90-70 PLC Chassis
• Ethernet Communication: Requires IC697CMM741 (Ethernet Controller) or IC697CMM742 (Ethernet Interface) module for TCP/IP connectivity.

Additional Notes

• Discontinued: The IC697CPX782 is no longer in production by the manufacturer.
• Replacement: For new systems, consider modern GE/Emerson PLC platforms such as the RX3i or RX7i series.