Abstract: According to an aspect, there is provided a solution for evaluating a configuration associated with an elevator. An update request may be received for a new configuration to be deployed with the elevator. It may be checked, from a memory, whether the new configuration exists in the memory. When the new configuration does not exist in the memory, a request for performing configuration upgrade tests associated with the elevator may be issued. The request causes a testing environment to obtain information associated with a first testing procedure using a software package associated with an existing configuration used in the elevator and to obtain information associated with a second testing procedure using a software package associated with the new configuration to be deployed with the elevator. A diagnostic report associated with the first and second testing procedures may be received and stored in the memory.

Abstract: An elevator communication system includes a first elevator controller; a second elevator controller; and a first ethernet bus portion connected to the first elevator controller, the first ethernet bus portion having sequential bus segments interconnected by at least one switch. The first ethernet bus portion is arranged in a first elevator shaft. A second ethernet bus portion is connected to the second elevator controller and includes sequential bus segments interconnected by at least one switch. The second ethernet bus portion is arranged in a second elevator shaft. A switch of the first ethernet bus portion and a switch of the second ethernet bus portion are interconnected to enable data transmission between the switch of the first ethernet bus portion and the switch of the second ethernet bus portion. The first elevator controller is communicatively connected to the second elevator controller.

Abstract: An elevator communication system includes a first elevator controller, a second elevator controller communicatively connected to the first elevator controller, a first ethernet bus portion connected to the first elevator controller, a second ethernet bus portion connected to the second elevator controller, and at least one elevator system node communicatively connected to the first elevator controller via the first ethernet bus portion and to the second elevator controller via the second ethernet bus portion.

Abstract: According to an aspect, there is provided an elevator communication system. The system includes an elevator controller, a first ethernet bus portion connected to a first port of the elevator controller, a second ethernet bus portion connected to a second port of the elevator controller, and at least one elevator system node communicatively connected to the elevator controller via the first ethernet bus portion and the second ethernet bus portion.

Abstract: An elevator communication system includes at least one ethernet bus segment, a controller communicatively connected to the at least one ethernet bus segment, and a plurality of elevator system nodes communicatively connected to the at least one ethernet bus segment. The controller is configured to determine a fault situation in the elevator communication system and cause reduction of the data communication via the at least one ethernet bus segment based on the fault situation.

Abstract: According to an aspect, there is provided an elevator communication system. The system comprises an ethernet bus, a safety master node communicatively connected to the ethernet bus and configured to communicate via the ethernet bus, and safety slave nodes communicatively connected to the ethernet bus and configured to communicate via the ethernet bus. The safety master node and the safety slave nodes are configured to communicate by using a time-triggered communication protocol. In the time-triggered communication protocol the safety master node is configured to send a polling diagnostic request message to the safety slave nodes by using a predetermined polling cycle.

Abstract: An elevator communication system includes at least one ethernet bus segment, a controller communicatively connected to the at least one ethernet bus segment, and a plurality of elevator system nodes communicatively connected to the at least one ethernet bus segment. The controller is configured to determine a fault situation in the elevator communication system and cause reduction of the data communication via the at least one ethernet bus segment based on the fault situation.

Abstract: According to an aspect, there is provided an elevator communication system. The system comprises an ethernet bus, a safety master node communicatively connected to the ethernet bus and configured to communicate via the ethernet bus, and safety slave nodes communicatively connected to the ethernet bus and configured to communicate via the ethernet bus. The safety master node and the safety slave nodes are configured to communicate by using a time-triggered communication protocol. In the time-triggered communication protocol the safety master node is configured to send a polling diagnostic request message to the safety slave nodes by using a predetermined polling cycle.

Abstract: According to an aspect, there is provided an elevator communication system. The system comprises an ethernet bus, at least one message forwarding element connected to the ethernet bus and being configured to communicate with a control entity that is external to the elevator system, and at least one elevator system component configured to communicate via the ethernet bus and being provided with an ethernet medium access control address. The at least one elevator system component is configured to at least one of receive an ethernet frame from the control entity and to send an ethernet frame to the control entity.

Abstract: The invention refers to a method for accessing an passenger transportation device control means comprising several separated printed circuit boards (PCB), whereby each of these PCBs comprises a unique identifier (ID), and in which method the passenger transportation device control means comprise a matching table which is used by the passenger transportation device control means to perform a matching test to check the identifier of at least two of the PCBs and to put the passenger transportation device control means into normal operation only if their IDs match the IDs of the matching table.

Abstract: The invention allows verification of authenticity of a maintenance means connectable to a controller of a passenger transportation/access device of a building. A digitally signed license key including a public asymmetric cryptography key of the maintenance means and optionally a one-way hash of a unique identifier of the maintenance means is used for this verification. Furthermore, an asymmetric cryptography key pair of the maintenance means and a symmetric cryptography key created by the controller are utilized in this verification.

Abstract: The invention refers to a method for accessing an passenger transportation device control means comprising several separated printed circuit boards (PCB), whereby each of these PCBs comprises a unique identifier (ID), and in which method the passenger transportation device control means comprise a matching table which is used by the passenger transportation device control means to perform a matching test to check the identifier of at least two of the PCBs and to put the passenger transportation device control means into normal operation only if their IDs match the IDs of the matching table.

Abstract: In modern elevators, safety circuits are used for preventing the operation of an elevator having possibly safety related problems. Sometimes the problem is in the safety circuit itself, and the operation could be continued. In a disclosed arrangement, groups of at least two independent safety circuits are used. The operation of the elevator can be continued in the case where one safety circuit in each group indicates that there is a possible problem. Thus, one deficient safety switch in one safety circuit does not prevent the operation.

Abstract: A system and a method to prevent the use of pirate products in an elevator control are provided. The system includes at least one elevator control, an updating mechanism and a connection between the elevator control and said updating mechanism. The elevator control includes essential electronic components provided with their own ID. An authorization section, which is configured to read the IDs of the essential electronic components, includes a reference list with allowed IDs, a comparator and a switching logic configured to issue an authorization signal for the elevator control to start or prevent operation of the elevator control depending on the comparison result of the comparator. The connection between the elevator control and the updating mechanism is configured to initiate the elevator control to update the IDs of the essential electronic components in the elevator control.

Abstract: The invention relates to a method and apparatus. In the method, a programmable random access memory testing circuit detects a signal to initiate testing of at least one random access memory circuit, the testing circuit being connected to a bus to which a processor and the at least one memory circuit is connected, the at least one memory circuit comprising at least a first memory block. The testing circuit determines that the bus is not reserved and reserves the bus. The testing circuit reads application data in a first memory block to a temporary memory of the testing circuit. The testing circuit executes marching test for the first memory block in a memory circuit. The testing circuit returns the application data back to the first memory block in the memory circuit. The testing circuit releases the bus.

Abstract: The invention allows verification of authenticity of a maintenance means connectable to a controller of a passenger transportation/access device of a building. A digitally signed license key including a public asymmetric cryptography key of the maintenance means and optionally a one-way hash of a unique identifier of the maintenance means is used for this verification. Furthermore, an asymmetric cryptography key pair of the maintenance means and a symmetric cryptography key created by the controller are utilized in this verification.

Abstract: The invention allows checking the validity of a license of a maintenance unit for accessing a controller of a passenger transportation/access device of a building, without a need for an online connection to a service center or the like. An expiration time of the license is read from an encrypted license file stored in the maintenance unit in response to detecting the maintenance unit being connected to the controller. A manufacturing time and a current usage time of the controller, both stored in a secure memory of the controller, are read. A total of the manufacturing time and the current usage time of the controller are compared to the expiration time of the license. In response to the total not exceeding the expiration time, the license is determined to be valid.

Abstract: A system and a method to prevent the use of pirate products in an elevator control are provided. The system includes at least one elevator control, an updating mechanism and a connection between the elevator control and said updating mechanism. The elevator control includes essential electronic components provided with their own ID. An authorization section, which is configured to read the IDs of the essential electronic components, includes a reference list with allowed IDs, a comparator and a switching logic configured to issue an authorization signal for the elevator control to start or prevent operation of the elevator control depending on the comparison result of the comparator. The connection between the elevator control and the updating mechanism is configured to initiate the elevator control to update the IDs of the essential electronic components in the elevator control.

Abstract: The invention relates to a method and apparatus. In the method, a programmable random access memory testing circuit detects a signal to initiate testing of at least one random access memory circuit, the testing circuit being connected to a bus to which a processor and the at least one memory circuit is connected, the at least one memory circuit comprising at least a first memory block. The testing circuit determines that the bus is not reserved and reserves the bus. The testing circuit reads application data in a first memory block to a temporary memory of the testing circuit. The testing circuit executes marching test for the first memory block in a memory circuit. The testing circuit returns the application data back to the first memory block in the memory circuit. The testing circuit releases the bus.