ABB AI950S

Operating Parameters

Power Supply:24V DC power supply

Input Channels:four input channels

Signal Processing: Each channel is equipped with a 16-bit analog-to-digital converter

Operating Temperature:-25°C to +70°C

Accuracy: The module offers high accuracy ±0.1%

Intrinsic Safety: The module has ATEX certification for installation in zone 1.

Product Features

Redundancy:The S900 I/O system can interconnect with multiple S900 I/O modules and features power redundancy and communication redundancy. This redundancy helps to guarantee high - availability of the system preventing from getting a down with power or communication failures.

Hot Configuration and Hot Swap:ABB AI950S supports hot configuration in run, meaning that users can change the configuration of the system without shutting down the whole system. Many have a hot swap capability which allows the component to be replaced while the system is still live.

Diagnostics:ABB AI950S offers advanced diagnostic capabilities. These functions can help detect problems like shorts and breaks within the sensor connections. This means that excellent diagnostics can be performed via the FDT/DTM configuration which assists with easier fault finding.

Thermocouple Measurements:The ABB AI950S provides internal or external cold junction compensation for thermocouple measurements. This refers to the compensation for the temperature at the reference junction of the thermocouple, Which is necessary for the accurate temperature reading.

Temperature Measurement: The ABB AI950S module reads temperature signals from different sensors and converts the analog signals into digital signals for subsequent processing by the control system.

Sensor Compatibility: It supports a wide range of temperature sensors, including RTDs and thermocouples, offering flexibility in sensor selection.

Isolation: This module has further electrical isolation between input, bus and power for further system protection and signal integrity.

Installation

Location: The remote S900 I/O system can be located in non hazardous areas, or mounted directly in zone 1 or zone 2 hazardous areas depending on system variant chosen. 4 non-sparking machines in hazardous areas continue to operate 3 and all installation procedures comply with the relevant ATEX regulations.

Data Computing: The S900 I/O system uses the PROFIBUS DP standard to communicate to the control system level. This allows for reliable communication between an I/O system and a control system.

Application range

Hazardous Areas: Due to its ATEX certification for zone 1 installation, the ABB AI950S is suitable for use in industries where there are potentially explosive atmospheres, such as the oil and gas industry, petrochemical plants, and chemical manufacturing facilities.

Remote Monitoring:Useful for remote monitoring applications as part of the remote S900 I/O system.

Process Control: In the chemical, petrochemical and pharmaceutical industries, monitoring and controlling processes.

Energy Management: Measuring and managing energy consumption in power generation and distribution systems.

Safety Systems: Utilizing in safety systems, which demand precise temperature monitoring within hazardous environments.

Troubleshooting

Diagnostic Tools: Use the extended diagnostic functions and FDT/DTM interface to localize problems. Check Diagnostic Information.If the module flags a fault, refer to the diagnostic information available to identify the underlying issue.

Power and Communication: For power related problems, verify that power supply units are configured and green. In the case of communication problems, make sure that the connections of the PROFIBUS DP, the network configuration and the status of other components of the communication network.

Component Replacement: If a component within the ABB AI950S module is faulty, use the hot swap functionality to replace it. However, make sure to follow the proper procedures to avoid any electrical hazards or system disruptions.

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