Technical Specifications Channel Quantity: 8 input channels Supported Signal Type: Voltage, current, PT100, thermocouple Conversion Resolution: 16‑bit Isolation Grade: Channel‑system galvanic isolation Module Power Supply: 24VDC Operating Temperature: -20℃ to +70℃ Mechanical Compatibility: Fully consistent with 07AI91
Functional Features Supports multi‑type industrial analog signal collection. Provides enhanced filtering and temperature compensation function. Delivers channel‑level electrical isolation. Transmits digital process data to main controller via backplane bus. Implements full compatibility with original AC31 software configuration without modification.
Application Scenarios
Process automation in environments with strong electromagnetic interference (VFD cabinets, power plant excitation systems). Precision temperature and signal acquisition for pharmaceutical, chemical, and food & beverage industries. Retrofit projects upgrading legacy AC31 systems requiring enhanced isolation.
Installation and Usage Notes
Mount on a 35 mm DIN rail inside a control cabinet. Wire field devices to the pluggable screw terminals. Set the module address and channel configuration via DIP switches. Configure input types and alarm thresholds in ABB Control Builder software. Ensure proper grounding of the cabinet earth bus to maintain isolation integrity. Verify channel readings and diagnostic LEDs during commissioning.
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