Product Description

The AAI141-H50/K4A00 is a high-performance analog input module for the Yokogawa CENTUM VP system. It provides 16 input channels for accurate acquisition of 4–20 mA current signals or 1–5 V DC voltage signals from field transmitters.
The module supports HART digital communication, enabling remote configuration, diagnostics, and device monitoring. This variant includes the /K4A00 KS cable interface, allowing quick and reliable connection to terminal boards using prefabricated KS cables, significantly simplifying cabinet wiring.

Technical Specifications

Application Scenarios

The AAI141-H50/K4A00 is well suited for high-density signal monitoring in centralized control rooms where field instruments share a common grounding reference. Typical applications include factory automation, power plant monitoring, and utility systems, where the integrated transmitter power supply reduces reliance on external loop power supplies for 2-wire transmitters.

Technical FAQ

Q: Can this module power both 2-wire and 4-wire transmitters?
A: Yes. The module supports 2-wire (loop-powered) and 4-wire (self-powered) field devices through configuration settings.

Q: What is the difference between AAI141 and AAI143?
A: AAI141 uses non-isolated channels, making it a cost-effective solution for stable grounding environments. AAI143 provides full channel isolation for applications requiring enhanced noise and ground-loop protection.

Q: What cabling is required for the /K4A00 option?
A: The /K4A00 variant uses a KS cable interface, typically requiring Yokogawa KS1 or KS2 cables to connect the module to the terminal board.