Description
ABB 3ASC25H204
- If Actually SPAI03 (4 ch Analog Input — TC/RTD/mA/V): Then it’s the S100 4-channel analog input module — 12/16-bit A/D, open-sensor detect, wired to TA563 with analog terminal block (TA567 for AI).
- Tech / Install / Precautions: See earlier S100 DI (SPDSI13/14) or AI description. Key:
- Wire field contact between Ix & C (common) on S100 analog/DI termination assembly
- For N.C. E-Stop — wire accordingly & invert logic in SW
- Terminate S100 bus with 95 Ω at last node
- Verify S100 PSU (SPU01) sized for total module current draw
(If your BOM has both 3ASC25H203 & 3ASC25H204 typically they are a DO + DI pair in an S100 I/O rack — e.g., SPDO13 + SPDI13.




