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Schneider Electric HART

Schneider Electric HART

Connecting to widely used instrumentation fieldbus

Connect to HART devices and leverage the power of intelligent device data for operational improvements.


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Highway Addressable Remote Transducer Protocol (HART) is the global standard for sending and receiving digital information across analog wires between smart devices and a control or monitoring system. The standard is controlled by the HART Communications Foundation.

• Most control systems can only monitor or control a single field instrument’s variable via the analog signal. This solution allows access via Ethernet to the many additional variables and parameters of HART smart instruments.
• The HART multiplexer can assist in the Configuration, Maintenance and Diagnosis of remote HART field instruments.
• This solution allows users to benefit from preventative maintenance information provided by HART smart instruments. This can help the move to cost saving Predictive Maintenance.

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The STBAHI8321, when used with a HART enabled NIM (STBNIP2311 version 4.01 and above), creates a HART multiplexer solution allowing remote systems to obtain digital data over Ethernet from HART instruments (sensor or actuator devices) on 4-20mA current loops. HART data such as Process Values and diagnostic information can be read by PCs, HMIs.

• Provides access to HART-enabled intelligent field instruments.
• This modular solution is very expandable. A HART multiplexer island consists of 1..8 HART modules. This gives 4 to 32 HART devices. (1 HART module = 4 channels = 4 HART devices)
• Allows PLCs and SCADA to access data from HART instruments using MODBUS commands over Ethernet.
• HART data can also be monitored on the multiplexer’s web pages.
ransparently attaches to the 4-20mA current loop between controller and HART device.
• Reading or writing the instrument’s analog signal is possible via optional STB IO modules on the STB island or via a controller’s analog module.
• Supports HART Protocol versions v5,v6 and v7
• Can be configured by Advantys Configuration Software.
• DTM support allows configuration and use with FDT based host applications, such as Endress+Hauser FieldCare, PACTware and Unity Pro

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