Model Number Explanation

• 51204126: Honeywell DCS analog I/O series

• 915: Variant with 16‑channel isolated analog output, 0–20mA, group‑isolated (4×4 channels)

Technical Specifications

• Channel Configuration: 16 analog output channels, galvanically isolated in 4 groups of 4

• Output Signal: 0–20mA (per channel), point‑to‑chassis isolation

• Isolation Voltage: 1500VAC (channel‑to‑chassis)

• Power Supply: 24VDC (18–30VDC), ≤120mA

• Operating Temperature: 0°C to +60°C

• Storage Temperature: −40°C to +85°C

• Humidity: 5%–95% non‑condensing

• Dimensions: 190 × 120 × 30mm

• Weight: ≈0.85kg

• Certifications: CE, UL 508, RoHS

Interface & Configuration

• Connectors: Front‑edge screw terminals (field wiring); DIN 41612 backplane connector

• LED Indicators: Module Run, Fault, Channel Status (per group)

• Redundancy: Supports dual‑module redundant pairing (1:1)

• Diagnostics: Open/short‑circuit detection, overrange, supply voltage monitoring

Key Features

• 16‑Channel Isolated AO: 4 groups × 4 channels, full galvanic isolation

• High Accuracy: ±0.15% FS (25°C), ±0.3% FS (−10°C to +60°C)

• Low Drift: ≤50ppm/°C

• Robust Protection: Overcurrent, short‑circuit, ESD/surge protection

• Hot‑Swap: Online replacement without system shutdown

• Coated PCB: Conformal coating for harsh environments (dust, moisture)

Applications

• Systems: Honeywell Experion PKS C200/C300, TDC3000, FSC safety systems

• Industries: Power generation, oil & gas, chemical, petrochemical, pharmaceuticals

• Use Cases: Analog actuator control (valves, dampers), process loop control, safety I/O distribution

Compatibility

• Racks: Honeywell 8‑slot/16‑slot DCS I/O racks (200mm depth)

• Controllers: C200, C300, TDC3000, FSC 10000‑series

• Firmware: Experion PKS ≥ R500; FSC ≥ v2.78