EMERSON 1X00188H01 Product Description

I. Product Overview

The Emerson 1X00188H01 is an 8-channel HART high-performance analog output module (AO module) of the Emerson Ovation DCS system. It belongs to the Ovation 1X series I/O cards and is responsible for converting DCS digital signals into industrial standard analog signals, serving as the core component for driving field actuators such as control valves, frequency converters, and valve positioners. 

This module is natively integrated with the HART protocol, which can superimpose digital communication on analog signals to enable two-way interaction between intelligent devices. It is widely applied in key process industries such as power, chemical, oil and gas, metallurgy, and water treatment, ensuring precise closed-loop control of process variables such as temperature, pressure, flow, and level, and supporting the 7×24-hour continuous stable operation of the Ovation DCS system.

II. Core Functions

8 independent high-precision analog outputs

Equipped with 8 completely independent isolated analog output channels, each channel can be flexibly configured through software as 4–20mA DC (default) or 0–10V DC signals, suitable for various on-site actuator requirements. The output accuracy is up to ±0.15% (full scale, 25℃), with a resolution of 0.001%, an update rate of 250ms, meeting the high-precision process control scenarios in fine chemical, power station control, etc.

Native HART 7.0 protocol support, full interaction of intelligent devices

Each channel integrates the HART 7.0 protocol, superimposing 1200bps digital communication on the 4–20mA analog signal, and can directly connect to HART intelligent valve positioners, transmitters, actuators, etc. It supports remote parameter configuration, range calibration, fault diagnosis, equipment status monitoring, and process variable reading, enabling two-way management of intelligent devices without additional hardware, significantly reducing on-site maintenance costs.

Multiple electrical isolation, strong anti-interference capability

Using channel-to-channel and channel-to-system dual electrical isolation design, with an isolation strength of 1500V AC/1min, it effectively blocks common-mode and differential-mode interference in industrial sites. Integrated with surge suppression, ESD protection, and EMI filtering functions, it complies with EN 61000-6-1/2/3/4 standards, tolerating strong electromagnetic environments, voltage fluctuations, and static electricity shocks, suitable for harsh industrial sites.

Wide temperature reinforcement design, stable operation under harsh conditions

Using industrial-grade components and reinforced PCB boards, the circuit board is coated with three-layer anti-moisture, anti-salt fog, and anti-corrosion coatings. The operating temperature range is -40℃ to +85℃, the storage temperature range is -55℃ to +90℃, with a relative humidity of 0%–95% RH (non-condensing); it 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 high-temperature, humid, dusty, and other harsh industrial environments.

Complete diagnosis and status monitoring, rapid fault location

The panel integrates four sets of LED indicators for power, operation, fault, and HART communication, intuitively displaying the operation status of the module and each channel. It supports remote diagnosis of the Ovation system, capable of uploading output voltage/current, channel status, HART communication quality, fault codes (open circuit, short circuit, overcurrent, etc.) and other data, quickly locating abnormal channels or equipment faults, reducing troubleshooting time.

Plug-and-play, system compatibility and online maintenance

Compatible with Ovation standard I/O racks, installed using DIN rail, sharing the backplane bus with the controller and power supply. Compatible with Ovation's full range of controllers (OCR3000, OCC100, etc.), I/O modules, and backplanes. Plug-and-play, the system automatically identifies and configures, no complex programming required. Supports online hot-swappable replacement, no system shutdown required, a single-channel failure does not affect the operation of other channels, reducing downtime losses.

Multiple electrical protection, ensuring equipment safety

Built-in overvoltage, undervoltage, overcurrent, short circuit, overheat protection circuits, with single-channel failure automatically isolated, not affecting the overall machine operation. Output short circuit automatically limits current and locks, fault resolution automatically restores; HART communication overload protection to prevent signal damage and protect the rear-end actuators and modules themselves.

III. Technical Specifications

(1) Output Parameters

Channel Quantity: 8 independent isolated channels

Output Signal: 4–20mA DC (default), 0–10V DC (software configurable)

Output Precision: ±0.15% (full scale, 25℃)

Resolution: 0.001%

Update Rate: 250ms

Load Capacity: Maximum 750Ω for 4–20mA; Minimum 1kΩ for 0–10V

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

Ripple Noise: ≤50mV peak-to-peak

(2) Communication Parameters

Protocol Support: HART 7.0, Ovation Private Protocol

Communication Rate: HART 1200bps

Connected Devices: HART intelligent valve positioners, transmitters, actuators, etc.

Functions: Remote configuration, calibration, diagnosis, data reading

(3) Electrical Parameters

Power Supply Voltage: 24V DC (±10%), powered by Ovation backplane

Working Current: ≤0.6A (full load)

Power Consumption: ≤14.4W

Protection Features: Overvoltage, undervoltage, overcurrent, short circuit, overheat automatic protection and alarm

(4) Environmental Parameters

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

Storage Temperature: -55℃ to + 90℃

Relative Humidity: 0%–95% RH (non-condensing)

Anti-Vibration: 5g rms, 10Hz–500Hz

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

EMC Performance: Compliant with EN 61000–6–1/2/3/4

Protection Grade: IP20 (module body)

(5) Physical Parameters

Size: 121mm×25mm×70mm (length × width × height)

Weight: Approximately 0.35kg

Material: Industrial-grade metal casing, PCB board triple protection coating

Certifications: CE, UL 508, RoHS, CSA

Origin: USA

IV. Product Features

8-channel independent isolation, high-precision control

8 channels completely independent, each channel can be individually configured with signal type, isolation design completely avoids interference between channels. Ultra-high precision and resolution ensure precise operation of actuators, meeting the high control accuracy requirements of power stations, fine chemical industries, etc.

HART protocol integration, intelligent equipment efficient management

Native support for HART 7.0 protocol, analog signal and digital communication parallel transmission, no additional hardware required to connect intelligent equipment. Remote configuration, diagnosis and calibration functions significantly reduce on-site inspection and maintenance workload, improve equipment management efficiency, and reduce operation and maintenance costs.

Wide temperature hardening + strong anti-interference, suitable for harsh working conditions

Extensive working temperature range, triple protection coating protection, strong anti-vibration and shock resistance, multiple EMC protection design, capable of withstanding industrial site high temperatures, humidity, dust, strong electromagnetic interference and other harsh environments, long-term stable and reliable operation, reducing the risk of failure shutdown.

Complete diagnosis + online maintenance, lower operation and maintenance costs

LED status indication combined with Ovation system remote diagnosis, can quickly locate channel faults, communication abnormalities or equipment problems. Support online hot-swappable replacement, no system shutdown required, single-channel failure does not affect the operation of the entire machine, effectively reducing downtime losses, and reducing operation and maintenance difficulty.

Plug-and-play + full system compatibility, deployment is convenient

Standard Ovation I/O rack installation, plug-and-play, system automatically recognizes and configures, no complex programming required. Compatible with the entire range of Ovation control and I/O devices, supporting redundant architecture, simplifying system expansion and renovation processes, and shortening project deployment cycles.

V. Application Scope

Power industry: Ovation DCS systems for thermal power, hydropower, and nuclear power, used for regulating valves, feeders, and frequency converters of key equipment such as boilers, steam turbines, and generators, achieving precise regulation of parameters such as temperature, pressure, and flow, ensuring safe and efficient operation of power stations.

Chemical industry: Petrochemical, fine chemical, and coal chemical plants, controlling the actuators of reaction vessels, distillation towers, and heat exchangers, suitable for explosion-proof and highly interfered environments, ensuring continuous production and process safety, and improving product quality stability.

Oil and gas industry: Oil and gas extraction, transportation, and refining plants, controlling pipeline valves, compressors, and heating furnaces, able to withstand high-temperature, low-temperature, and humid environments, achieving stable control of process variables, ensuring continuous operation of oil and gas production.

Metallurgical industry: Steel and non-ferrous metal smelting automation systems, controlling actuators of heating furnaces, rolling mills, and cooling systems, able to withstand high temperatures, dust, and strong electromagnetic interference conditions, ensuring stable and efficient metallurgical production processes.

Other industrial scenarios: Ovation DCS systems for large-scale water treatment, papermaking, and cement industries, used to control valves, pump bodies, and frequency converters, achieving automation and precise control of production processes, improving production efficiency and management level.

VI. Installation and Maintenance

(1) Installation Requirements

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

Environmental requirements: Working 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), avoiding direct sunlight and dust accumulation, and cleaning the cabinet ventilation channels regularly.

Cabling norms: Analog output cables use shielded twisted pair, single-ended grounding of the shielding layer, reducing electromagnetic interference; HART equipment wiring distinguishes positive and negative poles, secure and no loosening of the wiring, avoiding poor contact causing abnormal communication; 24V DC power supply is provided by the backplane, ensuring stable and undisturbed power supply.

(2) Maintenance Points

Regular inspection: Monthly inspection of module appearance, LED status indicator lights, and wiring terminals, confirming normal output signals and HART communication; check DCS system diagnostic logs to identify abnormal channels, communication interruptions, etc., and handle potential problems promptly.

Cleaning maintenance: Quarterly use a dry soft cloth to wipe the module surface, ventilation ports, and wiring terminals, removing dust and oil stains to avoid poor contact or poor heat dissipation; check the wiring terminals, tighten loose cables, and prevent vibration from causing wiring detachment.

Fault troubleshooting: Abnormal output, first check the wiring and load are normal, then check the module LED fault lights; single-channel failure, isolate the channel and replace the equipment; module failure, perform online hot-swappable replacement operation without stopping the machine.

Replacement considerations: Support online hot swapping, no need to stop the machine during replacement; after replacement, check the output accuracy of each channel, HART communication status, and remote diagnostic functions, confirm normal operation before putting into use to ensure system stability.

VII. Order Information

Product model: 1X00188H01

Brand: Emerson

Series： Ovation DCS System 1X Series 8-channel HART High-performance Analog Output Module

Packaging： Original anti-static packaging， including manual， certificate of conformity， and installation accessories

Guarantee： 12 months original factory guarantee， providing global technical support and after-sales maintenance