Description
Product Overview
The IC693CPU374-HX is a high-performance single-slot CPU processor for GE Fanuc Series 90-30 PLC rack systems. The -HX variant is a revision suffix of IC693CPU374, built around a 133MHz embedded processor with integrated dual-port Ethernet switch. Designed for medium-size factory automation, water treatment, power plant auxiliary control and material handling applications, this CPU supports high-speed logic execution, peer-to-peer Ethernet communications and hot backup configurations. It uses both RAM and Flash memory for program storage and retains data via backup battery during power loss.
Technical Specifications
| Item | Parameter |
|---|---|
| Part Number | IC693CPU374-HX |
| Manufacturer | GE Fanuc (Emerson) |
| Series | Series 90-30 PLC |
| Product Type | CPU Processor Module |
| Processor | 133 MHz AMD SC520 / embedded 586 |
| User Memory | 240 KB configurable RAM + Flash |
| Max Discrete I/O | 2048 input / 2048 output points |
| Supported Racks | Up to 8 expansion baseplates |
| Scan Speed | 0.15 ms per 1K Boolean logic |
| Ethernet Ports | Dual RJ45 10/100 Base-T auto-sensing, built-in switch |
| Protocols | SRTP, EGD Ethernet Global Data, Modbus TCP, SNP / SNPX |
| Backplane Power | 5 VDC, 7.4 W consumption |
| Battery Backup | Internal lithium battery for RAM retention and real-time clock |
| Operating Temp | 0°C ~ +60°C |
| Storage Temp | -40°C ~ +85°C |
| Certifications | CE, UL |
| Programming Software | Logic Developer, VersaPro |
Key Features
- Dual integrated Ethernet ports with internal switch, enables daisy-chain network topology without external network hardware.
- 240KB combined Flash and RAM memory; Flash preserves user program after battery depletion.
- Supports Modbus TCP, EGD and SRTP for HMI, SCADA and inter-PLC peer communication.
- Real-time clock with battery backup for timestamping alarms and production events.
- Diagnostics LEDs for CPU health, LAN status and fault indication for quick troubleshooting.
- Compatible with full range of Series 90-30 I/O, analog, motion and specialty modules.
- Supports redundant network and hot standby control architectures for high availability systems.
Installation Notes
- Install only in GE Series 90-30 standard baseplate rack, match backplane firmware requirements.
- Power off rack before CPU replacement; this module is not hot-swappable.
- Check internal battery condition before commissioning; replace battery periodically to avoid loss of RAM data.
- Separate Ethernet signal cables from high-current AC wiring to reduce EMI interference.
- Verify IP addressing and network switch configuration before downloading PLC logic.
- Always back up the user program before removing or replacing the CPU module.
Testing Procedure
- Visual inspection: Check front panel LEDs, edge connector for bent pins, PCB scratches or corrosion.
- Insert CPU into Series 90-30 rack, apply rack 5VDC backplane power.
- Confirm power-up self-test completes without fault LED alarm.
- Establish communications via programming software, upload existing program or download test logic.
- Validate Ethernet connectivity on both RJ45 ports, test Modbus TCP and EGD data exchange.
- Run forced I/O test with connected I/O modules, verify scan performance and fault diagnostics.
- Backup program, record test results and tag module for spare stock or field deployment.
FAQ
Q: What does suffix -HX mean on IC693CPU374-HX? A: -HX is hardware revision variant of base IC693CPU374, functionally compatible with standard CPU374, minor component revision.
Q: Is IC693CPU374-HX hot swappable? A: No, power to the PLC rack must be removed before CPU insertion or removal.
Q: What communication protocols are supported? A: Dual Ethernet supports Modbus TCP, EGD, SRTP; SNP/SNPX for programming and HMI access.
Q: What happens if the backup battery dies? A: Retentive RAM data and real-time clock will be lost; program stored in Flash remains intact.
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