Honeywell FC-TSAO-0220M Safe Analog Output Module

Precise Dual-Channel Control for Safety Systems

The Honeywell FC-TSAO-0220M delivers two independent fail-safe analog output channels for critical process control applications . This module generates configurable 0–20 mA or 4–20 mA signals to drive control valves, actuators, and positioners in safety loops . It integrates seamlessly with Honeywell Safety Manager, FSC (Fail-Safe Controller), and Experion PKS platforms . Moreover, the FC-TSAO-0220M supports HART communication on each channel for advanced diagnostics and remote device configuration . Its conformal coating ensures reliable operation even in corrosive or humid industrial environments .

Field Termination and Connectivity

The FC-TSAO-0220M functions as a field termination assembly (FTA) that interfaces between the system interconnection cable SICC-0001/Lx and external field wiring . Screw terminals accept wires up to 2.5 mm² (AWG 14) with a strip length of 7 mm . This module mounts directly onto TS32 or TS35 DIN EN rails, requiring approximately 61 mm of rail length . Furthermore, you can connect up to eight FC-TSAO-0220M modules in series to utilize all 16 channels of a HART multiplexer from MTL or Pepperl+Fuchs .

Technical Specifications

Parameter	Specification
Model Number	FC-TSAO-0220M
Manufacturer	Honeywell
Product Type	Safe Analog Output Module / Field Termination Assembly
Output Channels	2 independent analog outputs
Signal Range	Configurable 0–20 mA or 4–20 mA per channel
Maximum Voltage	40 V DC (per IEC 1010, overvoltage category 3)
Maximum Current	25 mA per channel
Accuracy	±0.1 % of span at 25 °C; ±0.2 % across full temperature range
Resolution	12-bit digital‑to‑analog conversion
Load Resistance	Up to 600 Ω (at 4–20 mA); Up to 1200 Ω (at 0–20 mA)
Response Time	< 10 ms typical
Module Weight	0.06 kg to 0.8 kg (varies by configuration)
Operating Temperature	–20 °C to +70 °C
Storage Temperature	–40 °C to +85 °C
Rail Length Required	Approx. 61 mm
Terminal Wire Size	Max 2.5 mm² (AWG 14)
Certifications	CE, UL, CSA, TÜV; SIL2/SIL3 compliant
Country of Origin	USA

Diagnostics and Safety Features

The FC-TSAO-0220M incorporates comprehensive diagnostics including open‑circuit, short‑circuit, and power failure detection . A built‑in read‑back function compares the output signal with command values in real time to ensure control accuracy . Each channel features independent electrical isolation to prevent interference between channels . The module also supports forced disabling control (SMOD) for safe shutdown during emergencies . Consequently, engineers rely on this module for demanding safety instrumented systems in oil and gas, chemical processing, and power generation facilities .