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Solvimus MBUS-PU3 User Manual

Usb level converter for mobile usage
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MBUS-PU3 - USER MANUAL
MBUS-PU3
USB Level Converter for
mobile usage
Version: 1.2
Date: 9 July 2024
Authors:
Remo Reichel, Frank Richter
solvimus GmbH
Ratsteichstr. 5
98693 Ilmenau
Germany
solvimus GmbH – Ratsteichstr. 5 – 98693 Ilmenau – Germany
Telephone: +49 3677 7613060 – Fax: +49 3677 7613069 – E-Mail: info@solvimus.de

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  • Page 1 Version: 1.2 Date: 9 July 2024 Authors: Remo Reichel, Frank Richter solvimus GmbH Ratsteichstr. 5 98693 Ilmenau Germany solvimus GmbH – Ratsteichstr. 5 – 98693 Ilmenau – Germany Telephone: +49 3677 7613060 – Fax: +49 3677 7613069 – E-Mail: info@solvimus.de...
  • Page 2 MBUS-PU3 - User manual Page intentionally left blank Page 2/15 Version: 1.2 Frank Richter, 9 July 2024 UG_EN_MBUS-PU3.pdf Released © solvimus GmbH...

  • Page 3: Table Of Contents

    MBUS-PU3 - User manual Table of Contents Table of Contents 1 Notes and conventions 1.1 About this document ........

  • Page 4: Notes And Conventions

    GmbH. Violations will result in a claim for damages. The solvimus GmbH reserves the right to provide for any alterations or modifications that serve to increase the efficiency of technical progress. All rights in the event of the granting of a patent or the protection of a utility model are reserved by solvimus GmbH.

  • Page 5: Symbols

    MBUS-PU3 - User manual Firefox is a trademark of the Mozilla Foundation in the U.S. and other countries. Chrome™ browser is a trademark of Google Inc. Microsoft Excel is a trademark of the Microsoft group of companies. 7-Zip Copyright (C) 1999-2022 Igor Pavlov.

  • Page 6: Safety Guidelines

    When handling the components, ensure that everything in the vicinity is well earthed (personnel, work- place and packaging). Do not touch electrically conductive components, e.g. data contacts. 1.7 Scope This documentation describes the device manufactured by solvimus GmbH, Ilmenau, and stated on the title page. 1.8 Abbreviations...
  • Page 7 MBUS-PU3 - User manual Table 2 – Continued from previous page Abbreviation Meaning Clear to send D0 interface (optical interface, IEC 62056-21) Direct Digital Control DHCP Dynamic Host Configuration Protocol Digital Input, digital input terminal Data information field DIFE Data information field extensions Deutsches Institut für Normung, German Institute for Standardization...
  • Page 8 MBUS-PU3 - User manual Table 2 – Continued from previous page Abbreviation Meaning Programmable Logic Controller PLMN Public Land Mobile Network Point-to-Point Protocol PPPoE Point-to-Point Protocol over Ethernet Polymer with positive temperature coefficient Personal Unblocking Key Random Access Memory REQ_UD...

  • Page 9: Introducing The Device

    The device supports operating 3 unit loads at the wired M-Bus (mostly equivalent to the number of meters). The MBUS-PU3 is installed in the housing of a USB stick and can be connected directly on the USB connector of the end device. The supply is assured by the USB connector.

  • Page 10: Status Leds

    * without legend Table 5: Status LEDs 2.5 First steps The MBUS-PU3 is operational after connection to the host system via USB. The red Power LED indicates the operation of the device. The following figure shows a typical usage of a MBUS-PU3: Figure 2: Typical usage of the MBUS-PU3 Further steps are not required for commissioning the device.

  • Page 11: Installation Of The Driver

    The following dialogue will be displayed: Figure 3: Dialogue for the installation of the driver Once the installation of the driver is achieved, the MBUS-PU3 can be used for the communication with the M-Bus. 2.5.2 Configuration of the logical bus master Whereas the MBUS-PU3 provides the physics of the M-bus master, the protocol, which is the logic of the M-bus, needs to be implemented via software on a PC.

  • Page 12: Signalling On The M-Bus

    MBUS-PU3 - User manual Figure 4: Device manager with CP210x USB to UART Bridge at COM port An external software (not included) is required to access the data of the M-Bus participants. Further interface parameters are parametrised in the respective system using the communication software. These settings are then automatically adopted for the M-Bus.

  • Page 13: Specific Troubleshooting

    Table 7: M-Bus specific terms 2.6 Specific troubleshooting In case the MBUS-PU3 does not work as described in this document, it is useful to locate the malfunction in order to resolve the issue and to recover the full functionality again.

  • Page 14: Errors While Meter Reading

    Only trained and appropriately qualified personnel are allowed to check the electric power supply (see Section 1.2.3). Check the cable between MBUS-PU3 and the meter, and replace faulty cables if necessary. Measure the M-Bus voltage at the device and at the meter, it should be approximately 32 VDC.

  • Page 15: Technical Data

    MBUS-PU3 - User manual 2.7 Technical data 2.7.1 General specifications Dimensions/Mass The device has the following dimensions (including connector) and the following mass: • Width: 19 mm • Height: 12 mm • Depth: 80 mm • Mass: approx. 15 g...

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