Free IO List Excel template
By Saad, practising automation engineer · Updated 2026-09-25
The fastest path in: tag, signal type, ranges, units, JB, node, card, channel.
Sheet: IO List. Includes an Instructions tab and example rows.
Download XLSXColumns
| Column | Required | Note |
|---|---|---|
| Tag | Yes | Instrument identifier, e.g. PT-1001 |
| Description | No | Service text on the sheet |
| Service | No | Process service |
| Signal Type | Yes | AI, AO, DI, DO, or named types |
| Voltage Class | No | e.g. 24VDC |
| Power Source | No | Leave blank if loop-powered |
| Power Rail | No | Optional rail name |
| Range Low | No | Engineering-unit zero |
| Range High | No | Engineering-unit span |
| Units | No | e.g. barg |
| Area | No | Plant area |
| P&ID Ref | No | Drawing reference |
| JB | No | Junction box name |
| Marshalling Cabinet | No | Cabinet name |
| Marshalling Strip | No | Strip name |
| Controller Node | No | DCS/PLC node |
| Card Type | No | e.g. AI-16 |
| Card Slot | No | Slot or module |
| Channel | No | Channel number |
| Cable Field ID | No | Field cable identifier |
Example rows
| Tag | Description | Service | Signal Type | Voltage Class | Power Source | Power Rail | Range Low |
|---|---|---|---|---|---|---|---|
| PT-1001 | Reactor pressure | Reactor | AI | 24VDC | — | — | 0 |
| FT-2001 | Cooling water flow | Cooling | FI | 24VDC | — | — | 0 |
First eight columns shown. Download the XLSX for the full sheet.
Importing this workbook works like a vendor IO list — upload it in the IO list checker or on the home page, review the mapping, and create loops.