PLCs, Power Supplies & Others

This Yokogawa analog input module provides 16 isolated channels for precision signal acquisition. It handles 4-20 mA current loops and 0-10 VDC voltage inputs seamlessly. Engineers can integrate this unit into Centum VP distributed control systems with confidence. Its robust design ensures stable measurements in continuous process environments. The module delivers reliable performance for demanding industrial monitoring applications.

Physical Characteristics and Rack Mounting

The module measures 4.9 inches in height and 1.4 inches in width. Its sturdy metal housing weighs approximately 1.8 pounds for secure installation. A 64-pin DIN connector establishes field wiring and data communication paths. The unit slides into standard Centum VP I/O racks without special tools. This design enables quick replacement during scheduled maintenance activities.

Input Channel Configurations and Signal Types

The module features 16 differential analog input channels for versatile connectivity. Each channel supports 4-20 mA current signals for process transmitters. The unit also accepts 0-10 VDC voltage inputs from various sensing devices. A hardware jumper selects the appropriate input type for each channel independently. This flexibility accommodates mixed signal types within a single module.

Conversion Resolution and Accuracy Specifications

The unit delivers 16-bit resolution for high-precision measurement of process variables. Its conversion accuracy reaches ±0.1% of full scale at 25 °C ambient. The module achieves a conversion time of 50 milliseconds per channel typically. An internal digital filter attenuates high-frequency noise from industrial equipment. This filtering ensures stable and reliable readings for control algorithms.

Communication Bus and Data Transfer

The module communicates via the ESB bus at 10 Mbps data rates. This bus transfers real-time process data to the field control unit seamlessly. The module supports HART protocol communication on each input channel. This capability enables digital access to smart field instrument parameters. Engineers can read device diagnostics and calibration data through this interface.

Power Requirements and Thermal Management

The module draws 300 mA from the 5 VDC backplane supply for logic circuits. It also consumes 200 mA from the 24 VDC field supply for loop excitation. Total power dissipation reaches approximately 8 watts under maximum load conditions. An integral aluminum heat sink dissipates thermal energy effectively. This passive cooling design eliminates the need for maintenance-prone fans.

Diagnostic Monitoring and Status Indication

The front panel features 16 green LED indicators for real-time channel status. Two additional LEDs display module health and communication integrity. The module performs continuous self-diagnostics on all analog channels. It detects open-wire conditions and out-of-range signals promptly. These diagnostics alert operators to potential issues before they affect production.

Environmental Ratings and Operating Ranges

The module operates reliably from 0 to 55 degrees Celsius ambient temperature. Its conformal-coated PCB resists moisture and dust in factory environments. The unit withstands 95% non-condensing humidity levels for versatile deployment. It carries CE and UL certifications for global industrial applications. These approvals simplify regulatory compliance for international projects.

Technical Specifications Overview

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