SARM15A CENTUM VP | Yokogawa | Digital I/O Relay Terminal Board

Product Overview

The Yokogawa SARM15A functions as a versatile Digital I/O Relay Terminal Board designed for seamless integration within advanced Distributed Control System (DCS) architectures. This module bridges the gap between high-level controllers and field-side machinery by managing 16 digital input channels and 8 digital output channels. It facilitates high-speed data exchange across multiple protocols including Modbus, PROFIBUS, and Ethernet. We supply this unit as 100% Brand New and Original, ensuring peak signal integrity and deterministic control for mission-critical automation loops.

Technical Specifications

The SARM15A utilizes a compact footprint to deliver high-density I/O switching and multi-protocol communication.

• Operating Voltage: 24V DC

• Digital Inputs: 16 Channels

• Digital Outputs: 8 Channels

• Communication Protocols: Modbus, PROFIBUS, and Ethernet

• Data Transfer Rate: Up to 1 Mbps

• Isolation: Full Galvanic isolation for all channels

• Operating Temperature: -40°C to +85°C

• Humidity Range: 5% to 95% RH (non-condensing)

• Mounting: DIN rail or panel mounting

• Dimensions: 200 mm x 50 mm x 30 mm

• Weight: 0.15 kg (0.33 lbs)

• Condition: Guaranteed 100% Brand New Original

Engineering Advantages

The SARM15A addresses complex field-level integration challenges through superior electrical and physical engineering:

• Extreme Environment Hardening: Unlike standard commercial I/O modules, the SARM15A operates reliably across a vast thermal window from -40°C to +85°C. This eliminates the need for expensive cabinet heaters or cooling fans when deploying hardware in remote instrument enclosures or extreme climates.

• Comprehensive Galvanic Isolation: Integrated galvanic isolation shields the central processing units from field-side electrical surges and ground loops. This architecture prevents localized electrical faults from propagating through the entire control network, protecting your core DCS investment.

• Multi-Protocol Versatility: The hardware supports Modbus, PROFIBUS, and Ethernet simultaneously. This flexibility allows engineers to standardize on a single board type while communicating with diverse field devices, significantly reducing spare parts inventory and simplifying software configuration.

• Flexible Deployment Options: The slim 30mm profile permits installation in high-density cabinets where space remains at a premium. Users can choose between standard DIN rail mounting for rapid deployment or panel mounting for high-vibration applications, ensuring secure physical integration in any cabinet orientation.

FAQs

• Does the SARM15A require a specific communication driver for Ethernet?

  The board utilizes standard industrial Ethernet stacks. Most CENTUM VP or third-party PLC systems recognize the device via standard network configuration tools, allowing for rapid commissioning without custom driver development.

• How do the relay outputs handle inductive loads?

  The digital outputs feature robust circuitry to manage standard industrial switching. For high-inductance loads such as large solenoid valves, we recommend verifying the current draw against the 24V DC specifications to ensure optimal contact life.

• Is this unit compatible with older Yokogawa digital modules?

  The SARM15A acts as a modern, high-speed replacement for various legacy I/O interfaces. Because it supports 1 Mbps data rates and multiple protocols, it often enhances the performance of older segments when integrated via PROFIBUS or Modbus.

• Is this a brand new original part?

  Absolutely. We supply only 100% Brand New hardware. This SARM15A arrives in its original factory packaging with intact manufacturer seals, matching serial numbers, and full traceability documentation.