1. Product Overview

The IC698CRE040-HN is a high-performance, redundant-enabled CPU module from the Emerson (GE Fanuc) PACSystems RX7i series. As the core of industrial control systems, it provides real-time processing, deterministic control, and network connectivity for complex automation applications, including machine control, process control, and material handling. It supports Hot Standby (HSB) redundancy for high-availability systems.

2. Key Features

• Processor: Intel Pentium‑M @ 1.8 GHz

• Memory:

  • 64 MB battery-backed RAM (user program/data)

  • 64 MB non‑volatile flash memory (program storage, configuration)

• Execution Speed: 0.024 ms / 1000 Boolean contacts/coils

• Communication Ports:

  • 2 × Ethernet (RJ45, 10/100 Mbps, auto‑negotiation)

  • 2 × Serial (RS‑232 / RS‑485, software‑selectable)

  • 1 × Station Manager Port (local configuration/firmware updates)

• Redundancy: Hot Standby (HSB) support (requires IC698RMX016 Redundancy Memory Xchange module)

• Protocols: Modbus/TCP (Server/Client), EGD, SRTP, Modbus RTU, SNP, Serial I/O, SNTP

• Programming Languages: Ladder Diagram (LD), Structured Text (ST), Function Block Diagram (FBD), C

• Max Program Size: 512 program blocks, 128 KB per block

• Data Monitoring: Up to 16 combined web server/FTP connections

3. Specifications

3.1 Electrical

3.2 Environmental

3.3 Mechanical

4. Installation

4.1 Rack Installation

1. Power off the RX7i rack and all connected devices.

2. Insert the IC698CRE040-HN into the CPU slot (typically the leftmost slot) of the RX7i rack.

3. Push firmly until the module fully seats into the VME64 backplane connector.

4. Secure the module with the front‑panel screws.

4.2 Redundancy Setup (Hot Standby)

1. Install two IC698CRE040‑HN CPUs in separate RX7i racks (primary and secondary).

2. Install one IC698RMX016 Redundancy Memory Xchange module in each rack.

3. Connect the RMX modules via a fiber or copper redundancy link.

4. Configure redundancy parameters (e.g., IP addresses, sync settings) in Proficy Machine Edition / Logic Developer software.

5. Verify redundancy operation: The secondary CPU automatically synchronizes with the primary and takes over within <100 ms if the primary fails.

5. Communication Interfaces

5.1 Ethernet Ports (ETH1, ETH2)

• Speed: 10/100 Mbps, full‑duplex, auto‑negotiation

• Protocols: Modbus/TCP, EGD, SRTP, TCP/IP, SNTP (time synchronization)

• Functions: Programming, HMI/SCADA communication, data exchange, web server/FTP access

• Redundant IP: Configurable for EGD data exchange (supports network redundancy)

5.2 Serial Ports (COM1, COM2)

• Modes: RS‑232 (point‑to‑point) or RS‑485 (multi‑drop), software‑selectable

• Protocols: Modbus RTU (Slave), SNP, Serial I/O

• Use Cases: Legacy device communication, programming, HMI connection

5.3 Station Manager Port

• Function: Local configuration, firmware updates, diagnostics, and troubleshooting

6. Operation

6.1 Power‑On

1. Apply power to the RX7i rack.

2. Check front‑panel LEDs:

   • RUN (Green): Solid = CPU executing program; Blinking = Startup/firmware update

   • FAULT (Red): Off = Normal; Solid = Critical fault; Blinking = Minor fault/warning

   • ETH1/ETH2 (Yellow/Green): Blinking = Network activity

6.2 Normal Operation

• Executes user program and updates I/O every scan cycle.

• Maintains real‑time clock and battery‑backed memory (preserves data during power loss).

• Communicates with HMIs, SCADA, and other controllers via Ethernet/serial.

• In redundant systems, the secondary CPU continuously synchronizes with the primary.

7. Programming

7.1 Software

• Use Proficy Machine Edition or Logic Developer (Emerson Automation Solutions).

7.2 Supported Languages

• Ladder Diagram (LD): Standard for relay‑logic applications

• Structured Text (ST): High‑level, Pascal‑like language

• Function Block Diagram (FBD): Graphical, block‑based programming

• C Language: For complex algorithms and custom functions

7.3 Program Structure

• Program Blocks: Up to 512 blocks (max 128 KB per block)

• Memory Reference: %W reference table for bulk memory access

• Symbolic Variables: Auto‑located, use user memory dynamically

8. Protection & Diagnostics

8.1 Error Conditions

• CPU Fault: Hardware/software error (check firmware, program, or backplane connection)

• I/O Fault: Missing/faulty I/O module (inspect backplane, wiring, or module)

• Communication Fault: Network/serial link failure (check cables, settings, or devices)

• Redundancy Fault: Sync failure between primary/secondary (check RMX module, link, or config)

8.2 LED Indicators

9. Maintenance

9.1 Regular Checks

• Monthly: Verify LED status, clean dust from vents (use low‑pressure air), check cable connections.

• Quarterly: Update firmware (if available), verify redundancy synchronization.

• Annually: Replace battery (every 3–5 years) to preserve memory during power loss.

9.2 Troubleshooting

10. Warranty & Support

• Warranty: 1‑year manufacturer’s warranty against defects in materials and workmanship.

• Support: Contact Emerson Automation Solutions for technical assistance, firmware updates, or repair services.

11. Safety Precautions

• Disconnect power before installation, wiring, or maintenance to avoid electric shock.

• Do not operate outside the 0 °C to +55 °C temperature range to prevent overheating.

• Ensure proper grounding of the rack and modules to reduce electrical noise and shock hazards.

• Keep ventilation vents clear of dust and debris to maintain airflow.

• In redundant systems, verify switchover operation during scheduled maintenance to ensure high availability.