Accessories - MODBUS Card

Accessories - MODBUS Card

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2112B1050

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Quick Overview

MODBUS Card suitable for 4-20mA output Gas Measuring Systems and transmitters - converts 4-20mA output into digital signal

Details

 

MODBUS Card suitable for Gas Measuring Systems and transmitters with 4-20mA output

Part no: 2112B1050

The MODBUS card converts 4-20mA signals from our Gas Measuring Systems and transmitters into digital output.

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The central evaluation and processing of measuring signals using a bus system and a central computer is advisable whenever a complex system has to be controlled, such as a system with many remote measuring points within buildings and underground car parks.

When determining gas and vapour concentrations in ambient air, a typical signal of 4-20 mA is used with a gas detection system. Although it is possible to connect to a digital data communication system, this is expensive.

The MODBUS card changes 4-20 mA signals into digital signals and transfers this signal via a serial RS485 interface to a central computer, which can be located up to 1,000 metres away. The MODBUS card makes use of reliable MODBUS RTU protocol.

The MODBUS card is suitable for a maximum of four 4-20 mA input signals and transfers the data, on request, to the central computer. The digital signal contains the following information:

-  Coding of the MODBUS card
-  Coding of the channel
-  Gas to be measured
-  Gas concentration

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Available accessories:

- MODBUS card in housing (part no. 2112B1055)

 



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