MB bus Mini IN Device - 4 inputs on RS485 bus with 32 connectable devices

The MB Mini IN Device is an electronic device that allows you to control through a PC or Embedded system 4 digital power lines from 5VDC to 24VDC for each device through photo couplers that guarantee galvanic isolation between the device and the lines to be controlled. The inputs are digital and when the voltage on an input is zero, the board considers it as “0”, while if there is a voltage from 5 to 24VDC it considers the input as “1”.

The device is designed to be installed in an RS485 network allowing the installation of the device together with other 30 devices of the same MB family, being able to create a powerful home or industrial automation system. To see the other compatible MB products, which can therefore be installed without problems on the same bus, visit the website www.mectronica.it

The device, in addition to the functions of reading the status of the inputs upon request of the control device, has an auxiliary function called "HL Registers" which allows you to record short changes in the status of the inputs even if the control device does not interrogate the device at the time of variation, this function is very useful in alarm systems or systems with low signals time duration.

Each input has a status indicator LED which indicates whether the input is under voltage or if there is no voltage.

TECHNICAL SPECIFICATIONS

• Power supply from 12 to 20VDC

• MAX absorption 10mA

• MB bus compatible (up to 32 devices on the same bus)

• 4 photo coupler inputs with galvanic isolation up to 5000V

• “HL registers” function to store changes in the status of inputs without interrogating the control device

• Value of HL registers stored even after a power failure

• Modifiable device addressing

• Line termination included

• Inputs activation led

• Device activity status led

• Inputs that can be interrogated by the control device

• Protection against inversion of input polarity

• Optional DIN rail support on request

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