Meeting of the CANopen Special Interest Group Lift 2014-09

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On September 24, 2014 the members of the Special Interest Group Lift met in Nuremberg. At this meeting participants from Germany, France, Italy and Sweden were present. Main topic was the extension of the standard with various new functions.

At the beginning the participants discussed the final version of an application note for the implementation of the bootloader function, with which software updates of all building groups can be downloaded via the CAN bus manufacturer-independently with a unified tool. Subsequently, a proposal for a 'Simple Floor Indicator' was briefly discussed, which enables the central administration of floor aliases in the control.

Furthermore, the extension of the virtual terminal was on the agenda. Here a procedure was proposed to exchange the properties of source and target before establishing a connection. With it the coupling of displays of different sizes with text or graphic modes and the function of the key sets will be made easier. In the afternoon many signals for the function of the electronic lift guard and the connection to the building automation have been defined. This way, emergency call devices or monitoring gateways will be able to forward this message, for example, to a maintenance center.

For the increasing number of TFT displays many signals have been defined as well, which can inform the user in the car and on the floors more specifically about the current state of the lift now.

For the transmission of CAN messages via package oriented TCP/IP networks it was decided to check the functionalities of the UART CAN protocol and possibly to extent it in the future or develop a new one.

Subsequently, many signals for connected lighting systems were determined, with which the intelligent control of various lighting scenarios in the car, shaft and on the floors is possible.

Besides the determination of the Node-ID for regenerative units a procedure for the provision of a shaft map by the control was proposed. It is necessitated primarily by monitoring systems, the big TFT displays and the safety box.

At the end possibilities were discussed to design the testing of devices at the PlugFest even more efficient. Here unified plug connectors shall be determined. There will be a functional focus as well in the future, which will be tested in all devices. At the next meeting, which is planned for April 2015, the energy savings function and special stress tests at the application layer are to be the focus.