Emerson IC695CPU315-CG PACSystems RX3i CPU
A revision-specific RX3i controller page focused on firmware, flash, serial-network and project continuity.
Product Profile
IC695CPU315-CG is the CG hardware revision of the PACSystems RX3i CPU315 controller. The CPU executes the stored control application and coordinates the configured rack, expansion I/O and communications.
A CPU exchange is a software-and-system migration as well as a hardware replacement. The complete IC695CPU315-CG identifier, firmware, Machine Edition project, flash options, serial settings and rack position must be preserved.
Technical Data
| Manufacturer | Emerson / GE Fanuc |
|---|---|
| Exact Model | IC695CPU315-CG |
| Product Family | PACSystems RX3i |
| Controller Type | CPU315 central processing unit |
| Hardware Revision | CG |
| Engineering Environment | PAC Machine Edition project and hardware configuration |
| Project Backup | Logic, hardware configuration, variables and communication settings |
| Flash Requirement | When configured to load from flash at power-up, save logic together with hardware configuration |
| Serial Consideration | Under heavy interrupt load, manufacturer notes recommend 57.6 kbit/s or lower instead of 115 kbit/s |
| Comm2 Consideration | Power cycling one CPU315/CPU320 on a shared two-wire EIA-485 multidrop can disrupt communications |
| Programmer Control | Simultaneous programmer access must be controlled during Test & Edit work |
| Acceptance Basis | Firmware, project checksum, I/O, communications, redundancy or remote-rack functions and controlled machine test |
System Role
Executes the approved RX3i control application and hardware configuration.
Coordinates local and configured expansion or remote I/O.
Maintains the serial and system communication baseline used by the machine.
CG revision provides the exact hardware identity for replacement control.
Compatibility
- Match the complete IC695CPU315-CG label and supported firmware before loading the project.
- Save logic together with hardware configuration when the application starts from flash.
- Document EIA-485 Comm2 topology and avoid an uncontrolled CPU power cycle on a live multidrop.
- Use the approved PAC Machine Edition release and prevent simultaneous uncoordinated programmer sessions.
Applications
- Control of installed PACSystems RX3i machines and process skids using CPU315 hardware.
- Revision-controlled replacement where the existing project and rack architecture are retained.
- Legacy RX3i systems requiring documented serial, flash and I/O commissioning.
FAQ
What must be backed up before replacing IC695CPU315-CG?
Save the complete Machine Edition project, logic, hardware configuration, variables, communication settings, firmware record, fault tables and any flash-startup configuration.
Why can IC695CPU315-CG power-up from flash without the expected application?
If hardware configuration was saved without logic, the controller cannot restore the full application; both must be included in the flash image.
What serial-network risk should be reviewed for IC695CPU315-CG?
A power cycle on a shared two-wire EIA-485 Comm2 multidrop can disrupt active communications, so the topology and outage plan must be documented.
When should IC695CPU315-CG serial speed be reduced?
For heavy interrupt-load applications, the manufacturer operational note recommends 57.6 kbit/s or lower to avoid rare corruption seen at 115 kbit/s.
What proves an IC695CPU315-CG exchange is complete?
Record firmware, project checksum, flash behavior, all I/O and network diagnostics, interlock tests and the authorized controlled machine result.
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