PLCs, Power Supplies & Others

This analog input module converts field sensor signals into digital values for controller processing. It handles voltage, current, and thermocouple inputs with high accuracy. The device offers eight independent channels for versatile measurement applications.

Technical Specifications

Mechanical Construction and Installation

This module features a 45 mm wide housing suitable for standard control cabinets. Its DIN-rail mounting system enables rapid deployment and effortless repositioning. The unit weighs only 0.20 kilograms for easy handling. All connections use spring-clamp terminals for quick and secure wiring.

Power Supply and Electrical Characteristics

The device operates from a 24 V DC supply with a ±20 percent tolerance. The internal logic consumes just 60 milliamperes of current. The module also provides excitation power for connected field sensors. Built-in reverse polarity protection safeguards the internal circuitry.

Input Configuration and Signal Types

Eight differential inputs accommodate various analog signal types. Each channel can accept 0–10 V DC or 0–20 mA signals. The module also supports 4–20 mA current loops for industrial transmitters. Thermocouple types K, J, and T are directly connectable. A built-in cold junction compensates for ambient temperature variations.

Measurement Performance and Resolution

The 16-bit resolution delivers precise measurement with excellent repeatability. The accuracy reaches ±0.1 percent of full scale at room temperature. The sampling rate processes each channel within 10 milliseconds. This speed suits most process control and monitoring applications.

Isolation and Noise Rejection

The module provides 500 V RMS isolation between channels and the logic circuitry. This isolation prevents ground loops from affecting measurement accuracy. The differential inputs also reject common-mode noise effectively. These features ensure stable readings in electrically harsh industrial environments.

Diagnostic Features and Status Indication

Two front-panel LEDs provide clear operational status feedback. The green Power LED confirms that the supply voltage is present. The amber Communication LED flashes during data exchange with the controller. These visual aids simplify troubleshooting during system commissioning.

Energy Storage and Transient Protection

Internal capacitors filter supply noise and suppress voltage transients. These capacitors also provide brief hold-up during minor power dips. The input circuits include overvoltage clamping for sensor protection. This clamping prevents damage from accidental high-voltage connections.

Application Suitability

This analog input module serves a broad spectrum of measurement applications. It works effectively with temperature sensors, pressure transmitters, and level indicators. The device also supports flow meters and analytical instruments. Its operating temperature range spans from -10°C to +55°C.

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