1C31179G01 high-stability analog output module

1C31179G01 is a high-stability analog output module developed by Westinghouse (now part of Emerson Automation Solutions) for its Ovation Distributed Control System (DCS). It specializes in converting digital control signals from the Ovation DCS into continuous analog output signals (current/voltage), enabling precise regulation of industrial field actuators such as control valves, variable-frequency drives (VFDs), and regulators—critical for maintaining stable process parameters in harsh industrial environments. Below is its detailed information:

1. Core Technical Specifications

Parameter Category	Specific Details
Output Channels	8 independent isolated analog output channels; each channel is electrically isolated from others and the system backplane to eliminate cross-interference, ensuring signal consistency for actuators.
Supported Output Signals	- Primary: 4–20mA DC current signals (industrial standard, suitable for long-distance transmission and driving high-power actuators like control valves).- Secondary: 0–10V DC voltage signals (for low-power devices such as small regulators or analog display meters).- Resolution: 12-bit DAC (Digital-to-Analog Converter), ensuring minimal output deviation for fine control.
Output Accuracy	- At 25°C (ambient temperature): ±0.1% of full scale (FS) for 4–20mA signals; ±0.2% of FS for 0–10V signals—meeting precision requirements for key processes (e.g., reactor temperature, pipeline flow).- Temperature drift: ±0.002% FS/°C (in -40°C to 70°C), reducing accuracy loss caused by environmental temperature fluctuations.
Load Capacity	- For 4–20mA signals: Maximum load resistance 600Ω (compatible with most industrial actuators, allowing long cable runs without signal attenuation).- For 0–10V signals: Minimum load resistance 1kΩ (preventing overload and ensuring stable voltage output).