Emerson IC695CPU320 PACSystems RX3i CPU
A PACSystems RX3i rack CPU for deterministic machine and process control applications.
Overview
IC695CPU320 is a PACSystems RX3i rack-based controller programmed with PAC Machine Edition. It executes the control application, manages RX3i I/O and supports the PACSystems instruction and data model.
IC695CPU320 belongs to the RX3i CPU group without an embedded Ethernet interface. Network communications therefore depend on separately configured communication modules, while the complete hardware suffix and firmware remain important for service compatibility.
Specs
| Manufacturer | Emerson / GE Fanuc |
|---|---|
| Model | IC695CPU320 |
| Product Family | PACSystems RX3i |
| Product Type | Rack-based CPU module |
| Programming Environment | PAC Machine Edition |
| Supported Program Languages | Ladder Diagram, Function Block Diagram, Structured Text and C blocks as supported by the project release |
| Local Control | RUN/STOP mode switch |
| Nonvolatile Storage | Onboard flash support for user data and project retention |
| Communications Class | CPU without embedded Ethernet; use configured RX3i communication modules for network access |
| Serial Interfaces | Onboard serial communication capability; port use and protocol depend on firmware and project configuration |
| Hardware Identity | Complete catalog suffix required for exact replacement |
| Firmware Boundary | Project and firmware compatibility must be checked before download |
| Battery Support Note | F-series hardware with firmware 6.02 or later supports reliable smart-battery low detection |
| System Documentation | PACSystems RX3i CPU Reference Manual GFK-2222 and RX3i System Manual GFK-2314 |
Features
- Executes PACSystems logic and coordinates rack I/O under a common RX3i engineering environment.
- Supports online maintenance functions when permitted by the project and firmware.
- Provides flash-based retention options in addition to volatile memory backup arrangements.
- Integrates with Ethernet, fieldbus and specialty modules installed in the RX3i rack.
Applications
- Machine sequencing and interlocking with modular RX3i I/O.
- Process skids and utility systems requiring rack-based control.
- Installed-base support where serial links and separate Ethernet modules are already engineered.
Lifecycle
- Upload the project, hardware configuration, reference tables and fault history.
- Record the full suffix, firmware, battery type, rack power supply and every communication module.
- Capture serial-port parameters and network-module settings separately from the CPU project.
- After exchange, validate I/O, retained data, communications, task timing and restart behavior under an approved test plan.
FAQ
Why is the full suffix important when ordering IC695CPU320?
Hardware revisions can affect firmware, battery diagnostics and service procedures, so the complete side label is required for an exact replacement.
Can IC695CPU320 be replaced by a newer RX3i CPU without editing the project?
A migration may be possible, but memory, instructions, serial links, communication modules, firmware and scan behavior must be validated first.
What backup should be collected before exchanging IC695CPU320?
Save the complete PAC Machine Edition project, hardware configuration, reference data, passwords where authorized, fault tables and communication-module settings.
Why can an IC695CPU320 replacement run logic but lose plant communications?
The application may rely on separate Ethernet or fieldbus modules whose parameters, rack slot or firmware were not restored with the CPU project.
Which acceptance checks matter most after installing IC695CPU320?
Confirm battery and memory status, I/O health, retained values, serial links, network exchanges, watchdogs and controlled restart sequences.
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