1. Core Technical Parameters

Backplane Supply：24 VDC

Analog Input Channels：8 channels

Supported Field Signal：4–20mA / 0–10V

Channel Isolation：2500 VAC group isolation

Conversion Resolution：16 bit

Operating Temperature：-20℃ ~ +70℃

Matching Terminal Unit：TU818V1 / TU830V1

2. Compatibility & Expandability

Same-brand Compatibility

ABB AI815 is an analog input module belonging to ABB S800 I/O system series. On-site automation technicians install multiple ABB AI815 on DSBB rack backplanes to expand analog signal acquisition capacity for process control cabinets. ABB AI815 locks onto matched terminal bases and delivers converted digital process data to ABB PM8xx CPU controllers without additional signal conditioning boards. Built-in diagnostic LEDs allow maintenance crews to monitor signal running status of ABB AI815 and maintain stable data collection from all ABB pressure and flow transmitters.

Cross-brand Compatibility

Exclusive S800 backplane bus structure blocks direct assembly of ABB AI815 on third-party PLC racks. External signal transfer terminal strips are required to build signal links connecting ABB AI815 with Siemens and Schneider control hosts. Standardized 4–20mA and voltage analog signal norms enable ABB AI815 to capture measurement feedback from most aftermarket industrial sensors with no internal circuit modification.

3. Lifecycle Cost Analysis

Service cycle of ABB AI815 covers 10 years, exchange rate:1USD=7.2CNY, purchase and installation expenses are excluded from all cost statistics

Annual routine maintenance cost: Channel linear calibration and internal dust clearance for ABB AI815 costs 28 USD per year, total 10-year maintenance expense: 280 USD

Spare part replacement cost: Analog signal conversion circuit damage of ABB AI815 generally occurs once every 8 years, single spare module price: 384 USD, total replacement expense within 10 years: 384 USD

Retrofit expense saving: Original field signal wiring harness fully adapts to ABB AI815 during cabinet upgrade projects, saving 226 USD extra wiring labor cost compared with incompatible substitute analog input modules

Total cumulative running cost for single ABB AI815 across ten service years: 438 USD