Network migration
Remote I/O and FLEX I/O to EtherNet/IP migration
Remote I/O (RIO) is the legacy scanner-and-adapter network used with PLC-5 systems. Star Automations migrates RIO racks and 1794 FLEX I/O to EtherNet/IP and 1734 POINT I/O, using gateways where a staged cutover is needed, and helps troubleshoot RIO network faults in the meantime.
Typical migration paths
The right target depends on your I/O count, networks, performance needs and budget. We confirm the target during the audit — the table shows the usual direction, not a fixed rule.
| Legacy | Typical target | What to watch |
|---|---|---|
| Remote I/O (RIO) racks | EtherNet/IP I/O | Gateways support staged cutover |
| 1794 FLEX I/O | 1734 POINT I/O | Map every module and channel |
What needs care in this migration
Staged cutover
Racks are moved one at a time, with a rollback plan for each, so production can continue.
I/O mapping
Each channel, scaling and fault behaviour is documented and tested.
RIO faults today
Common causes are wrong termination, address or baud settings, cable or shield problems, and failed adapter modules. Send us the symptoms.
Our migration process
- Migration readiness audit: inventory of hardware, firmware, networks, programs and spares
- Back up and document the running system before anything is touched
- Design the target architecture and I/O mapping; agree scope and the cutover approach
- Convert and rebuild the program and HMI, with every conversion warning reviewed by hand
- Test in stages: simulation, panel factory test where panels are built, then site testing
- Cutover with a rollback plan, then handover documentation
What we need from you: Program backups (or access to the running processor); Electrical drawings and the I/O list, if available; Network layout and device list; Photos of nameplates, panels and wiring; Your shutdown windows and any safety requirements.
What people look up
- remote i/o to ethernet/ip migration
- remote i/o replacement
- 1794 flex i/o to 1734 point i/o migration
- 1794 flex i/o replacement
- rio network fault troubleshooting
Common questions
What is remote I/O?
Can RIO racks stay while I migrate?
Planning this migration?
Send what you have — model numbers, a photo of the panel, or just the problem. We reply the same day with next steps. Chennai, Puducherry, Bengaluru, Hyderabad, Delhi and pan-India.
Star Automations is an independent company. Allen-Bradley, Rockwell Automation, ControlLogix, CompactLogix, GuardLogix, PanelView, PowerFlex, Kinetix, FactoryTalk and Studio 5000 are trademarks of Rockwell Automation, Inc. They are used here only to identify the products we work on and do not imply endorsement by, or partnership with, Rockwell Automation.