Description

Product Description

Overview
The AAI543-S50/A4S10 from Yokogawa is a high-performance 16-channel analog input module designed for demanding industrial environments. It provides precise measurement for DC signals ranging from 4 to 20 mA or 1 to 5 V and supports dual-redundant configurations to maintain continuous operation even in case of module failure. The module combines high accuracy, fast response, and robust surge protection for reliable process control.

Key Features

• Input Signal Range: 4 to 20 mA DC or 1 to 5 V DC

• Number of Channels: 16 fully isolated input channels

• Redundancy: Dual-redundant configuration ensures uninterrupted operation

• Accuracy: ±48 HA for high-precision measurement

• Data Update Speed: 10 ms update period for real-time processing

• Temperature Compensation: Low drift of ±16 HA per 10 degrees Celsius

• Surge Protection: Safeguards module and connected devices from electrical surges

• Isolation: Channel-to-channel isolation reduces interference and enhances signal integrity

Model and Suffix Codes

• Model: AAI543 – 16-channel analog input module (4 to 20 mA, isolated)

• Suffix Codes:

• S: Standard type

• 5: Standard switch-over response in redundant configuration without explosion protection

• 0: Basic type

Applications
Ideal for continuous process monitoring, industrial control systems, and redundant measurement setups where signal integrity and uptime are critical.

Technical Specifications Table

Parameter	Specification
Input Signal	4 to 20 mA DC or 1 to 5 V DC
Number of Channels	16 isolated channels
Redundancy	Dual-redundant configuration
Accuracy	±48 HA
Update Period	10 ms
Temperature Drift	±16 HA / 10 C
Isolation	Channel-to-channel isolation
Surge Protection	Included
Operating Temperature	-10 to 60 C
Power Supply	24 V DC nominal

FAQ
Q: Can this module handle both voltage and current signals simultaneously?
A: Each channel can be configured individually for either 4 to 20 mA or 1 to 5 V DC input.

Q: How does redundancy improve reliability?
A: The dual-redundant design allows seamless operation if one module fails, ensuring uninterrupted data acquisition.

Q: Is this module suitable for explosion-proof environments?
A: The AAI543-S50/A4S10 standard version does not have explosion-proof certification.

Similar Models Comparison

• AAI543-S51: Enhanced switch-over speed for redundant configurations

• AAI543-S60: With extended temperature compensation range

Specifications

• Brand: Yokogawa

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems