GE IC695310DK PACSystems RX3i Central Processing Unit (CPU)

Description

The GE IC695310DK (commonly referenced as IC695CPU310-DK, a variant or revision of the base IC695CPU310 in the PACSystems RX3i family, now under Emerson) solves the need for compact, high-performance central processing in space-constrained industrial automation racks where legacy or mid-range demands don’t justify multi-slot CPUs or newer embedded-Ethernet models. In setups transitioning from Series 90-30 or building out RX3i systems for machine control, material handling, or process loops, engineers often face limits on rack real estate while requiring fast Boolean execution, ample memory for growing logic, and reliable serial communications without add-on modules. GE IC695310DK addresses this by packing a capable single-slot CPU (despite some configurations noting effective two-slot footprint due to backplane usage) that delivers deterministic scan times, substantial user memory, and dual serial ports for direct HMI, Modbus, or legacy device ties. It’s particularly essential in retrofits, standalone machines, or distributed control where high reliability is key but full gigabit Ethernet or advanced redundancy isn’t yet required — preventing bottlenecks in logic execution or I/O handling that could degrade process control performance or force unnecessary expansions.

GE IC695310DK operates as the primary processor in an RX3i universal backplane, executing application logic in Ladder Diagram, Structured Text, Function Block Diagram, or C while managing local and remote I/O across the dual PCI/serial bus architecture. It scans discrete and analog points at high speeds (typical 0.195 ms per 1000 Boolean contacts/coils), handles up to 32K discrete bits and configurable analog words, and supports up to 512 program blocks (max 128 KB each). Dual embedded serial ports (RS-232 and RS-485) enable protocols like Modbus RTU Slave, SNP (for HMI or programming), and Serial I/O, with front-facing connections for easy access. While lacking native Ethernet (requiring add-on modules like IC695ETM001 for TCP/IP, SRTP, or Modbus TCP), it integrates seamlessly with RX3i I/O families — including high-speed IC695 modules and compatible IC694/IC693 types — and coordinates remote drops or Genius networks via appropriate interfaces. Positioned as the core of the control stack, GE IC695310DK provides battery-backed RAM for retentive data, flash for non-volatile storage, hardware floating-point support, and comprehensive diagnostics via LEDs (OK, RUN, FAULT, etc.) and fault tables accessible through Proficy Machine Edition. This makes it a solid workhorse for real-time applications needing consistent performance without the overhead of newer multi-core CPUs.

Opting for GE IC695310DK provides dependable, no-frills processing that keeps legacy RX3i investments productive while delivering fast, predictable execution for demanding logic. Engineered with a rugged design and hardware floating-point acceleration, it ensures tight control loops and minimal jitter in high-throughput applications, reducing cycle times and improving throughput consistency. The dual serial ports cut integration effort for HMIs or field devices, often eliminating extra comm modules and lowering panel costs. Maintenance teams gain from straightforward diagnostics — front LEDs flag issues instantly, fault tables pinpoint problems, and Proficy tools enable quick online edits or uploads without stopping the process. In practice, GE IC695310DK supports long-term stability with battery retention for critical data and flash for firmware reliability, deferring major upgrades while handling expansions via compatible I/O. This balance of performance and simplicity reduces engineering overhead and total ownership costs in environments where uptime matters but budgets constrain adoption of newer CPE series CPUs.

GE IC695310DK is widely used in discrete manufacturing for packaging lines or assembly machines, where fast Boolean scans and serial HMI links maintain precise sequencing under continuous operation. In material handling or conveyor systems, it coordinates distributed I/O across extended racks, ensuring reliable sensor/actuator response in vibration-heavy settings. Process-oriented facilities — such as smaller batch chemical or food & beverage operations — deploy it for temperature, flow, or pressure control loops in process control environments, prioritizing critical system uptime with deterministic execution and easy serial integration to legacy instrumentation or panels.

Related or alternative products in the Emerson PACSystems RX3i family include:

IC695CPE310 – Updated single-slot successor with 1.1 GHz processor, 13 MB memory, embedded Ethernet, and USB for modern upgrades.

IC695CPE305 – Mid-range RX3i CPU with 6 MB memory and embedded Ethernet for less demanding applications.

IC695CPE330 – High-performance model with larger memory, gigabit Ethernet, and advanced redundancy support.

IC695CPU320 – Similar older CPU variant with comparable specs for direct replacements in existing racks.

IC695ETM001 – Ethernet module add-on to provide TCP/IP, SRTP, and Modbus TCP when native Ethernet is needed.

IC695PSA040 – 40W universal power supply commonly paired for reliable backplane power.

IC695CHS012 – 12-slot universal backplane for hosting GE IC695310DK and mixed I/O modules.

IC698ACC701 – Lithium battery pack for extended memory retention in critical setups.

Before installing GE IC695310DK, verify the RX3i universal backplane (e.g., IC695CHS series) has adequate power capacity from a compatible supply like IC695PSA040/PSD040. Assign slot position (typically leftmost), ensure proper grounding to minimize noise, and install the battery (IC698ACC701 or equivalent) for retentive memory. Use Proficy Machine Edition to configure IP (if Ethernet added), download logic, and match firmware to your application — check Emerson’s portal for the latest compatible version. Test serial connections and LED status during commissioning, forcing a run/stop cycle to validate failover behavior in redundant-like setups. Confirm ventilation for the 0–60°C range, as enclosed cabinets can push limits.

Ongoing maintenance involves routine LED monitoring: OK for overall health, RUN for active execution, FAULT/SYSTEM FAULT for issues, and BATTERY for low charge warnings. Replace the battery every 3–5 years or on indication to avoid memory loss during outages. Inspect serial connectors annually for corrosion or looseness, especially in dusty/humid areas. Use Proficy diagnostics to trend scan times, fault logs, and utilization — addressing spikes early prevents performance drift. Firmware updates via serial or Ethernet (with add-on) should follow Emerson notifications for enhancements or fixes. The design allows online logic changes, so plan brief test modes for modifications without full shutdowns. Stock spares, as the single-slot form factor supports quick swaps in live systems with proper procedures.