EMERSON 1X00304H01 Product Description
I. Product Overview

The Emerson 1X00304H01 is an advanced Analog I/O Module of the 1X series in the Emerson Ovation DCS system. It was formerly part of the Westinghouse control product line and was specifically designed for the acquisition of analog signals (voltage/current) in industrial process sites and for closed-loop control output. This module integrates high-precision analog signal acquisition and driving capabilities, allowing it to simultaneously connect on-site sensor signals and output control signals to actuators. It is the core I/O card of the Ovation system for continuous process monitoring and regulation, and is widely used in critical process industries such as power, chemical, oil and gas, and metallurgy, meeting the high-precision control requirements under harsh conditions. 

II. Core Functions

High-precision analog signal acquisition, compatibility with various types of signals

Support for multiple independent analog input channels, capable of directly connecting 4–20mA DC current signals, 0–5V/0–10V DC voltage signals, and compatible with various industrial sensor output signals such as temperature (thermocouple/thermoresistor), pressure, liquid level, and flow; adopts 24-bit high-resolution ADC sampling technology, with high conversion accuracy and good linearity, capable of accurately capturing subtle signal changes, meeting the requirements for high-precision process parameter monitoring.

Stable analog control output, capable of driving various actuators

Integrated multiple analog output channels, capable of outputting 4–20mA DC current signals or 0–10V DC voltage signals, directly driving regulating valves, frequency converters, proportional valves, etc. in industrial actuators; output signal accuracy is high, with low ripple, fast response, and supports closed-loop PID control output, ensuring precise execution of control instructions and stable adjustment of process parameters.

Electrical isolation between channels, strong anti-interference capability

Adopts channel-to-channel and channel-to-system dual electrical isolation design, with isolation strength reaching 1500V AC/1min, effectively blocking common-mode interference, differential-mode interference, and ground potential difference in industrial sites; integrates EMI filtering, surge suppression, and ESD protection circuits, compliant with EN 61000-6-1/2/3/4 standards, capable of withstanding interference from frequency converters, large-power motors, etc., suitable for complex industrial electromagnetic environments.

Wide temperature, rugged, and three-proof design, long-term operation in harsh conditions

Uses industrial-grade components and rugged PCB boards, with the circuit board coated with anti-moisture, anti-salt fog, and anti-corrosion three-proof coatings; operating temperature range is -40°C to +85°C, storage temperature range is -55°C to +90°C, relative humidity is 0%–95% RH (non-condensing); can withstand vibration (5g rms, 10–500Hz) and impact (30g, 11ms half-sine wave), with an average failure-free time (MTBF) of ≥500,000 hours, suitable for harsh industrial scenarios such as high temperatures, humidity, dust, and salt fog.

Complete diagnosis and status monitoring, rapid fault location

The panel integrates multiple LED indicator lights for power supply, operation, fault, and channel status, intuitively displaying module power supply, operation status, fault alarms, and input/output status of each channel; supports remote diagnosis via the Ovation system, capable of uploading codes and status information for channel open/closed, signal over-range, module hardware faults, etc., with real-time monitoring of health status by the background, precise fault location, and shortened troubleshooting time.

Plug-and-play compatibility, supports online hot-swappable maintenance

Adapts to Ovation standard I/O rack DIN rail installation, shares the backplane bus with the controller and power supply, plug-and-play, system automatically recognizes and configures, no complex programming required; compatible with Ovation's full range of controllers (OCR3000, OCC100, OCR1100, etc.) and I/O modules, supports online hot-swappable replacement, no system shutdown required, a single-channel fault does not affect the operation of other channels, effectively reducing downtime losses.

Multiple electrical protections, ensuring equipment safety

Built-in overvoltage, undervoltage, overcurrent, reverse polarity, short-circuit protection circuits, single-channel fault automatically isolates, does not affect the overall machine operation; input overvoltage/overcurrent automatically limits current protection to prevent module and downstream equipment damage; reverse polarity protection design, avoids the risk of equipment burnout caused by incorrect positive/negative polarity connection during on-site wiring, enhances system safety. Input impedance: Current signal ≥ 250Ω, Voltage signal ≥ 100kΩ

Resolution: 24-bit (High-precision ADC)

Conversion accuracy: ±0.05% FS (Full-scale)

Linearity: ±0.01% FS

Response time: ≤ 20ms (Channel sampling conversion)

Isolation strength: Channel-to-channel 1500V AC, Channel-to-system 1500V AC

Input protection: Overvoltage, overcurrent, short circuit automatic protection

(II) Output parameters

Number of channels: Multiple independent isolated analog output channels

Output signal type: 4–20mA DC (Current), 0–10V DC (Voltage)

Output load: Current signal ≤ 500Ω, Voltage signal ≥ 1kΩ

Resolution: 16-bit (High-precision DAC)

Output accuracy: ±0.1% FS (Full-scale)

Ripple noise: ≤ 50mV peak-to-peak

Response time: ≤ 15ms (Output stabilization)

Isolation strength: Channel-to-system 1500V AC

Output protection: Overcurrent, short circuit, overvoltage automatic protection and recovery

(III) Communication parameters

Bus protocol: Ovation Private I/O Bus Protocol

Communication rate: Synchronized with the backplane bus, compatible with Ovation system real-time data interaction

Data transmission: Upload input values of each channel, diagnostic information, fault codes; Receive system output instructions

System compatibility: Ovation 3.0 and above versions systems

(IV) Electrical parameters

Power supply voltage: 24V DC (±10%), powered by Ovation backplane

Working current: ≤ 0.6A (full load)

Power consumption: ≤ 14W

Insulation strength: Input-to-output 1500V AC/1min, Input-to-shell 1500V AC/1min

(V) Environmental parameters

Operating temperature: -40℃ to + 85℃ (full load without reduction)

Storage temperature: -55℃ to + 90℃

Relative humidity: 0%–95% RH (no condensation)

Anti-vibration: 5g rms, 10Hz–500Hz

Anti-shock: 30g, 11ms half-sine wave

EMC performance: Compliant with EN 61000–6–1/2/3/4, CE, UL 508

Protection level: IP20 (Module body)

(VI) Physical parameters

Size: 121mm×25mm×70mm (Length × Width × Height, standard 1X series size)

Weight: Approximately 0.35kg

Material: Industrial-grade metal casing, PCB board three-proof coating

Certifications: CE, UL 508, RoHS, CSA

Origin: USA

IV. Product features

Integrated analog input and output, high integration

Single module integrates multiple AI and AO channels, meeting the requirements of signal acquisition and control output simultaneously, significantly saving cabinet space and hardware costs; independent isolation design for channels, no interference between input and output, suitable for complex signal mixed scenarios, flexible and efficient application.

High-precision sampling and output, precise and reliable control

24-bit high-precision ADC sampling, 16-bit high-precision DAC output, high conversion accuracy, good linearity, fast response, can accurately capture small signal changes, ensuring precise process parameter monitoring and accurate execution of control instructions, meeting high-precision industrial control requirements.

Double isolation + strong EMC protection, strong anti-interference ability

Double isolation between channels and system, effectively blocking interference signal crosstalk; multiple EMC protection design, tolerant to strong industrial site electromagnetic interference, ensuring stable input signal and no drift in output instructions, avoiding abnormal situations such as incorrect adjustment and parameter fluctuations. 

Wide temperature reinforcement + three-proof design, stable operation in harsh conditions The ultra-wide operating temperature range enables stable operation in extremely cold and hot environments; the three-layer coating provides protection against moisture, salt fog, and dust, and is highly resistant to vibration and impact. It has high reliability during long-term operation and reduces the risk of faults caused by the environment.

LED indication + remote diagnosis, facilitating convenient and efficient operation and maintenance.

Intuitive LED status display enables on-site quick determination of module and channel status; remote real-time monitoring of module parameters and health status, precise fault code location, support for hot-swappable maintenance, and reduction of technical requirements and downtime.

Plug-and-play + hot-swappable, ensuring trouble-free deployment and maintenance.

Standard rack installation, plug-and-play, system automatic recognition, and quick deployment; supports online hot-swappable replacement of faulty modules without downtime, single-channel fault isolation design, without affecting the overall system operation, and ensuring production continuity.

V. Application Scope

Power industry: Thermal power, hydropower, nuclear power Ovation DCS system, used for boiler temperature / pressure / flow, turbine speed / vibration, generator excitation parameters, etc. analog signal acquisition, and control output for regulating valves, actuators, etc., ensuring precise monitoring and stable regulation of power station equipment.

Chemical industry: Petrochemical, fine chemical, coal chemical plants, collecting reaction tank temperature / pressure, distillation tower liquid level / flow, compressor vibration / temperature, etc. signals, outputting PID control signals to regulating valves, frequency converters, adapting to explosion-proof, strong interference, and humid environments, ensuring continuous production and process safety.

Oil and gas industry: Oil and gas extraction, transportation, refining and processing plants, collecting pipeline pressure / temperature, storage tank liquid level, compressor parameters, etc. analog signals, controlling pumping pumps, regulating valves, etc., tolerating extreme temperatures, sandstorms, salt fog environments, achieving precise monitoring and regulation of oil and gas production.

Metallurgical industry: Steel, non-ferrous metal smelting automation systems, collecting heating furnace temperature, rolling mill pressure / speed, cooling system flow, etc. signals, outputting control signals to actuators, ensuring stable metallurgical production process.

Other industrial scenarios: Ovation DCS system in large-scale water treatment, papermaking, cement, pharmaceutical industries, used for collecting temperature, pressure, liquid level, flow, etc. analog parameters, driving regulating valves, frequency converters, achieving automatic monitoring and precise control of production processes.

VI. Installation and Maintenance

(1) Installation Requirements

Installation location: Fixed on Ovation standard I/O rack DIN guide rails, installed firmly and vibration-proof; reserve ≥50mm above and below the module and ≥30mm left and right for heat dissipation space to ensure good ventilation and avoid high-temperature heat accumulation affecting module performance.

Environmental requirements: Operating temperature -40℃ to + 85℃, humidity 0%–95% RH (non-condensing); away from strong heat sources, strong electromagnetic sources (such as frequency converters, large power motors), avoid direct sunlight and dust accumulation, and regularly clean the cabinet ventilation channels.

Cable connection specifications: Analog signal cables use shielded twisted pair, shield layer single-ended grounding to reduce electromagnetic interference; current / voltage signal wiring distinguishes positive and negative poles, secure without loosening; 24V DC power supply provided by the back panel to ensure stable and undisturbed power supply.

(2) Maintenance Points

Regular inspection: Monthly inspection of module appearance, LED status indicator lights and wiring terminals to confirm normal input signal acquisition and output control; check DCS system diagnostic logs to identify signal over-range, channel abnormalities, communication interruptions, etc., and promptly handle potential problems.

Cleaning maintenance: Quarterly use a dry soft cloth to wipe module surface, ventilation ports and wiring terminals, remove dust and oil stains to avoid poor heat dissipation or contact failure; check wiring terminals, tighten loose cables to prevent vibration from causing cable detachment. Fault Troubleshooting: When there is an input anomaly, first check if the on-site sensors and wiring are normal, and then check the module's LED fault indicator; when there is an output anomaly, check the actuator and wiring to confirm if the output signal is normal; when the module malfunctions, perform an online hot-swapping replacement operation without needing to stop the machine.

Replacement Instructions: Online hot-swapping is supported, and no machine shutdown is required during replacement; after replacement, check the input accuracy, output stability, remote diagnostic function, and communication status of each channel to ensure normal operation, and then put the system into operation to ensure system stability.

VII. Order Information

Product Model: 1X00304H01

Brand: Emerson (Emerson)

Series: Ovation DCS System 1X Series Analog Input/Output Module

Packaging: Original anti-static packaging, including the manual, certificate of conformity, and installation accessories Warranty: 12-month original factory warranty, with global technical support and after-sales maintenance services provided.