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GE Series 90-30 IC693CPU374 Central Processing Unit Module

The IC693CPU374 is a high-capability central processing unit designed for the GE Fanuc Series 90-30 PLC platform. Intended for systems requiring real-time networking capabilities alongside localized machine control, this controller combines processing efficiency with immediate out-of-the-box Ethernet connectivity.

Unlike lower-tier units in the Series 90-30 family, the IC693CPU374 embeds a dual-port 10/100 Mbps Ethernet switch directly into the module fascia. This internal auto-sensing switch shares a single IP address across two physical RJ-45 ports, allowing daisy-chain network topology without extra external hardware. The CPU provides expansive register and memory configurations, allowing engineers to allocate the 240 KB internal RAM dynamically between discrete logic, system variables, and data logging tasks.

• Embedded Dual RJ-45 Ethernet Switch: Enables direct network drop lines and linear daisy-chain configurations using SRTP (Service Request Transport Protocol) and Modbus TCP.

• Hardware-Assisted Floating Point: Accelerates calculations for complex math loops, PID tuning, and analog scaling without degrading overall scan cycle times.

• Firmware Over Network: Simplifies life-cycle maintenance by allowing direct firmware flash upgrades over the local network via an HTML interface or configuration software.

• Backwards Compatibility: Installs effortlessly into standard Series 90-30 5-slot or 10-slot baseplates, utilizing existing I/O architectures and minimizing modernization costs.

• Configurable Data Architecture: Supports adjustable register boundaries for %I, %Q, %AI, %AQ, and %R tables to match unique application profiles.

• Packaging Machinery: Coordinating high-speed indexing, filling tracks, and multi-stage sorting lines.

• Water and Wastewater SCADA: Functioning as a localized station controller capable of broadcasting metrics over wide area networks via Ethernet.

• HVAC and Building Automation: Managing centralized environmental control, large-scale air handlers, and chiller plants.

• Food and Beverage Processing: Managing precise batch weights, clean-in-place (CIP) timing cycles, and recipe storage profiles.

Q: Do the two RJ-45 ports on the IC693CPU374 require different IP addresses? A: No, the ports are linked to an internal network switch. They share a single IP address, which allows you to loop network cabling to adjacent devices without an independent network hub.

Q: Is a dedicated option module needed to configure or back up the memory? A: The module retains user logic via RAM backed by a battery on the baseplate. However, it also includes non-volatile flash memory, which allows the program to be permanently saved directly via the software.

Q: What programming software is required to configure the IC693CPU374? A: This CPU can be programmed and configured using Proficy Machine Edition (PME) or legacy VersaPro and Logicmaster 90 software versions that support CPU374 firmware definitions.

Q: Does this module support the Ethernet Global Data (EGD) protocol? A: No, the IC693CPU374 does not natively support EGD. For applications requiring EGD, a standalone Ethernet communications module (such as the IC639ETM001) must be added to the chassis.

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