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This Yokogawa analog input module converts field sensor signals into digital process data. It provides 16 isolated differential channels for high-density I/O applications. Engineers can deploy this unit in distributed control systems for accurate measurement. Its robust design ensures reliable operation in continuous process environments. The module supports various sensor types through configurable input ranges.

Physical Dimensions and Mounting Design

The module measures 4.9 inches in height and 1.4 inches in width. Its metal housing weighs approximately 1.8 pounds for stable rack installation. A 64-pin DIN connector establishes all field wiring and communication paths. The unit slides into standard Centum VP I/O racks securely. This design allows hot-swap replacement without powering down the entire system.

Input Channel Specifications and Ranges

The module offers 16 differential analog input channels for versatile connectivity. Each channel accepts 4-20 mA current signals or 0-10 VDC voltage inputs. An onboard jumper selects the desired input type for each individual channel. The module also accommodates thermocouple and RTD sensors with proper external conditioning. This flexibility reduces the need for multiple specialized input modules.

Resolution and Accuracy Performance

The module delivers a 16-bit resolution for precise measurement of process variables. Its accuracy reaches ±0.1% of full scale at ambient temperature conditions. The unit achieves a conversion rate of 50 milliseconds per channel typically. This speed supports both fast-loop control and slow process monitoring effectively. An internal digital filter reduces high-frequency noise for stable readings.

Communication Interface and Data Exchange

The module communicates via the high-speed ESB bus at 10 Mbps. This bus transfers process data to the field control unit for regulatory control. A dedicated configuration port allows parameter setting from a handheld terminal. The module also supports HART protocol pass-through on each input channel. This capability enables digital communication with smart field instruments seamlessly.

Power Consumption and Thermal Performance

The module draws 300 mA from the 5 VDC backplane supply for internal logic. It also requires 200 mA from the 24 VDC field supply for loop power. Total power dissipation reaches approximately 8 watts under full load conditions. The unit features an aluminum heat sink for effective passive cooling. This thermal design maintains component temperatures within safe operating limits.

Diagnostic Features and Status Indication

The front panel includes 16 green LED indicators for real-time channel status. Two additional LEDs display module health and communication activity. The module performs continuous self-diagnostics on all analog channels. It detects open-wire conditions and reports them to the controller immediately. These diagnostic functions simplify troubleshooting and reduce maintenance response times.

Environmental Tolerance and Compliance

The unit operates reliably from 0 to 55 degrees Celsius ambient temperature. Its conformal-coated PCB resists moisture and airborne contaminants effectively. The module withstands 95% non-condensing humidity for versatile deployment. It meets CE and UL safety standards for global industrial installations. This compliance facilitates equipment certification for international projects.

Technical Specifications Overview

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