Emerson DA7281440 Intelligent Input/Output Board

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The Emerson DA7281440 intelligent input/output board (or module) is a product wi

Emerson DA7281440 Intelligent Input/Output Board

The Emerson DA7281440 intelligent input/output board (or module) is a product with specific communication capabilities and technical characteristics, mainly used in the fields of industrial automation and process control. The following is a detailed analysis of the product:

1. Basic information

Brand: Emerson

Model: DA7281440

Type: Intelligent input/output board (or module)

2. Technical characteristics

Communication scheme:

10BASE-T1L physical layer capability based on full-duplex, DC balanced, point-to-point communication scheme.

Adopts PAM 3 modulation, 7.5 MBd symbol rate, 4B3T encoding.

Amplitude mode:

Supports two amplitude modes, 2.4 V peak for up to 1000 meters of cable and 1.0 V peak when the distance is shortened.

The 1.0 V peak amplitude mode means that this new physical layer technology can also be used in explosion-proof system (Ex) environments.

Data bandwidth:

The data bandwidth ranges from 1.2 kbps to 31.25 kbps, up to 10 Mbps.

Power supply and power consumption:

The power demand of the instrument is less than 40 mW (with restrictions), and can reach 60 W in non-explosion-proof systems (depending on the cable).

Fieldbus support:

When using HART, current signals from 4 mA to 20 mA are supported.

III. Application scenarios

The Emerson DA7281440 intelligent input/output board (or module) is suitable for industrial automation and process control scenarios that require high reliability and long-distance communication. Its unique communication capabilities and explosion-proof characteristics make it have a wide range of application prospects in hazardous environments such as petroleum, chemical, and natural gas.

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