An opt-in from at least one user of a plurality of users associated with at least one tool of a plurality of tools is received. An authentication associated with a first opted-in user of the plurality of users associated with an access of a first tool of the plurality of tools is determined. A set of credentials required to operate the first tool associated with the first opted-in user is verified. A request to an Internet of things (IoT) receiver device is transmitted. A response from an IoT transmitter device is received. In response to determining that the first user is utilizing required equipment to operate the first tool, power to the first tool is supplied.

A method for operating a packaged terminal air conditioner includes scrolling through a sequence of characters on a display of the user interface in response to an input at a user interface of the packaged terminal air conditioner. The user interface is locked when the sequence of characters scrolls on the display of the user interface. The display of the user interface includes a pair of segment displays. Each segment display of the pair of segment displays includes no less than seven segments. The sequence of characters includes the letters L, O, and C.

A method includes a step of generating, using a control device, a private key and a public key, a step of acquiring, using the control device; encrypted data obtained by encrypting the data using the public key; a step of decrypting, using the control device, the private key for the encrypted data when the control device performs a process; a step of storing, using the control device, the data obtained by decrypting the encrypted data using the private key in a volatile storage area that is not accessible from the outside; and a step of executing, using the control device, a process with reference to the data stored in the storage area.

In an approach, a locking device comprises a lock cylinder, a first solenoid valve and a second solenoid valve, a barcode scanner adjacent to the lock cylinder, a spring-loaded interface adjacent to the lock cylinder, and a logical circuit comprising a first disc and a second disc. In an approach for using a hybrid security key in a non-networked device, a locking device of the non-networked device authenticates logical and physical attributes of a hybrid security key, determines authorizations of the hybrid security key, and audits use of hybrid security key while in the locking device of the non-networked device.

A refrigeration device, a controller thereof, a user access terminal, a mobile terminal, a management terminal and a maintenance data management system. The controller for a refrigeration device includes: a controller input module configured to input and process maintenance data of an associated refrigeration device locally; a controller display module configured to display the maintenance data of the associated refrigeration device and a data processing interface; a controller storage module configured to store the maintenance data of the associated refrigeration device; and a controller data synchronization module configured to upload the maintenance data of the associated refrigeration device from the controller to a server periodically and/or in real time.

In an approach, a locking device comprises a lock cylinder, a first solenoid valve and a second solenoid valve, a barcode scanner adjacent to the lock cylinder, a spring-loaded interface adjacent to the lock cylinder, and a logical circuit comprising a first disc and a second disc. In an approach for using a hybrid security key in a non-networked device, a locking device of the non-networked device authenticates logical and physical attributes of a hybrid security key, determines authorizations of the hybrid security key, and audits use of hybrid security key while in the locking device of the non-networked device.

An approach for control of users relative to access to controllers of a site in a hierarchy of controllers and building equipment. When a user of a customer has established a read write connection to a site controller, the customer does not necessarily want any subsequent user to establish a read write connection to the site controller or another controller within the same site and also make changes, for example, to settings of building equipment. Thus, a subsequent user may be allowed a read only connection and just be able to view building equipment information. When the first user has disconnected either intentionally or by inactivity, the site controller may be cleared allowing a subsequent user to obtain a read write connection. If the first user is inactive but fails to disconnect from the controller, an auto log-off provision may disconnect the user after a specified period of inactivity.

Systems and methods are provided for controlling maintenance of a fuel dispenser. In one exemplary embodiment, a system is provided having a fuel dispenser that includes an electronics module having a data processor, a remote enterprise server in communication with the electronics module, and a remote code processor in communication with the remote enterprise server. The data processor is configured to determine an authorization password based on data characterizing the fuel dispenser, to receive a remote password that is generated by the remote code processor based on the fuel dispenser data, to determine that the remote password matches the authorization password, and to cause the fuel dispenser to enter a maintenance mode.

A security unit for an industrial control system comprises an interface adapted to communicate with a plurality of components of an industrial control system via a data network, a security assignor adapted to access a first component among the plurality of components via the interface, and further adapted to assign a first security level pertaining to the first component to the first component. The security assignor is further adapted to access a second component among the plurality of components via the interface, and to assign a second security level pertaining to the second component to the second component. The security assignor is adapted to assign the first security level and the second security level to the first component and the second component, respectively, in accordance with a system security level pertaining to the industrial control system.

Methods, systems, and computer-readable media for industrial control software execution management. For example, there is provided a method for enabling a software module included in a plurality of software modules of an application package installed on a computing device configured to control a turbomachine of an industrial plant. The method can include receiving, by a processor of the computing device, a request for executing the software module. The method can include generating and sending an activation request to a remote server. The method can include generating, by the remote server, an activation code if a verification protocol is successfully completed. The method can include forwarding the activation code to the computing device. The method can include activating the software module when the activation code is received by the processor.