✅ General Information

• Full Name: AC522‑KBA: S500, Analog I/O Module, 8AC (4AI+4AO), U/I/RTD, 12bit+sign, 24VDC, 2/3‑wire, conformal coated

• Mounting: 35mm DIN rail

• Termination: Screw / spring terminals (TU515/TU516)

• Protection: IP20; conformal coated (KBA) for harsh environments (dust, moisture, vibration)

• Dimensions (W×H×D): 67.5 × 76 × 62 mm

• Net Weight: ~0.2 kg

• Key Features: 4AI + 4AO mixed I/O, voltage/current/RTD input, voltage/current output, 12bit+sign resolution, 2/3‑wire connection, per‑channel LEDs, conformal coating

✅ Function & Application

• Core Function: 4 analog inputs (AI) + 4 analog outputs (AO)

  • AI: Voltage, current, or RTD (Pt100)

  • AO: Voltage or current

• Product Profile: Compact mixed analog I/O module with conformal coating, designed for space‑limited, harsh industrial applications requiring both sensing and control points.

• System Role: AC500 local/remote I/O expansion, integrated analog monitoring and control in tough conditions.

✅ Technical Specifications

• Channel Configuration: 4AI (U/I/RTD) + 4AO (U/I)

• Input Ranges (AI):

  • Voltage: ±10V, 0…+10V

  • Current: 0…20mA, 4…20mA (burnout detection)

  • RTD: Pt100, −50…+400°C (2‑wire / 3‑wire)

• Output Ranges (AO):

  • Voltage: ±10V, 0…+10V

  • Current: 0…20mA, 4…20mA

• Resolution: 12 bit + sign (13 bits total) for AI and AO

• Accuracy: ±0.1% of full scale (typical)

• Isolation: Channel‑to‑bus, channel‑to‑ground isolation

• Status Indication: Per‑channel LED (ON/OFF/error)

• Power Supply: 24VDC ±10%, ~2W

• Operating Temperature: −25…+60°C (horizontal)

• Coating: Conformal coated (KBA) – protected against condensation, dust, chemical vapors

✅ Compatible Accessories

• Terminal Units: TU515 (spring) / TU516 (screw)

• Expansion Cables: TK501 / TK502 (module cascading)

• Rail: Standard 35mm DIN rail

• PLC Compatibility: ABB AC500 / AC500‑eCo

• Bus Modules: CI511/CI512 (EtherCAT), CI501/CI502 (Profinet)

✅ Typical Applications

• Process Industry: Chemical, water treatment (harsh environments with both sensors and control valves)

• General Machinery: Packaging, plastic, textile (compact machines with mixed analog I/O)

• Building Automation: HVAC, energy management (integrated monitoring and control)