DA7281520 P152
Product Name
DA7281520 P152 Industrial-Grade 8-Channel Isolated Analog Output Module (Core Function: As a “digital-to-analog conversion unit for process control systems”, it transforms digital control commands from DCS/PLC controllers into precise 4~20mA DC or 0~10V DC analog signals. It is compatible with industrial automation platforms (e.g., ABB Symphony Plus, Siemens PCS 7) to drive field actuators (control valves, VFDs), enabling accurate regulation of process parameters like flow, pressure, and temperature in power, chemical, or oil & gas industries.)
2. Product Description
The DA7281520 P152 is a high-performance analog output module engineered for critical process control scenarios, with three core advantages: “channel-level isolation, high output precision, and robust environmental tolerance”. In industrial processes (e.g., chemical reactor temperature control, power plant steam flow regulation), analog outputs must maintain stability to avoid actuator misoperation—especially when multiple channels share a power supply or are exposed to electromagnetic interference (EMI). This module features 2.5kV AC galvanic isolation per channel, eliminating cross-talk between channels and suppressing EMI from nearby motors, frequency converters, or high-voltage equipment—ensuring each output signal remains independent and reliable.
Its key strength lies in ultra-precise digital-to-analog (D/A) conversion: equipped with a 16-bit D/A converter, it achieves an output accuracy of ±0.1% full scale (FS) and a linearity error of ≤±0.05% FS. Unlike low-precision modules, it supports output signal trimming (via software or hardware) to calibrate for long cable losses (e.g., 4~20mA signals transmitted over 100m+ cables) or actuator tolerance—critical for applications requiring micron-level valve positioning or fine flow control. Each of its 8 channels is independently configurable to output 4~20mA DC (sinking/sourcing) or 0~10V DC, adapting to diverse actuator types without requiring module replacement.