A communication device includes a communicator that communicates with an RF tag in a non-contact manner, a communication unit that exchanges data with a host device, and a controller that controls the communicator and the communication unit. Every time the communicator sequentially reads data from the RF tag that passes a communication-feasible region near the communicator at regular time intervals or irregular time intervals, the controller updates first data to be exchanged with the host device by the communication unit so as to include the read data. Also, the controller updates second data to be exchanged with the host device by the communication unit to a value different from a previous value in association with timing with which the first data is updated.

An apparatus is provided for detecting fault conditions in the energy supply of a load. The apparatus comprises a fail-safe input-output (I/O) module circuit and a diagnostic circuit coupled to the fail-safe input-output (I/O) module circuit. The fail-safe input-output (I/O) module circuit includes a first switch coupled to a first resistor divider and a first output that supplies a DC supply voltage to the load via a first wiring to reduce a first voltage of the first output down to a first readback diagnostic output and a second switch coupled to a second resistor divider and a second output that supplies the DC supply voltage to the load via a second wiring to reduce a second voltage of the second output down to a second readback diagnostic output. The diagnostic circuit is to provide a first readback measurement signal from the first readback diagnostic output and provide a second readback measurement signal from the second readback diagnostic output. The apparatus is configured to provide the first readback measurement signal and the second readback measurement signal for the first output and the second output with and without the load such that when the first and second switches are open or OFF the first voltage at the first output with the load and the second voltage at the second output with the load indicate a NOT broken wire condition with respect to the first and second wirings while the first voltage at the first output without the load and the second voltage at the second output without the load indicate a broken wire condition with respect to the first and second wirings.

In accordance with presently disclosed embodiments, a system and method for controlling the temperature of medium-voltage power electronics assemblies (i.e., medium-voltage drives) is provided. The disclosed system generally includes a medium-voltage drive having one or more cabinets with power electronics devices disposed therein, one or more fans for circulating air through the cabinet to cool the devices, and one or more space heaters disposed in the cabinet. The drive also features temperature sensors used to measure various temperatures of the drive, a controller communicatively coupled to the sensors, and one or more variable frequency drives (VFD) for the fans. The controller may receive measurements regarding the ambient and power device temperatures and apply controls to vary the space heater power and fan speed in response to environmental changes.

In accordance with presently disclosed embodiments, a system and method for controlling the temperature of medium-voltage power electronics assemblies (i.e., medium-voltage drives) is provided. The disclosed system generally includes a medium-voltage drive having one or more cabinets with power electronics devices disposed therein, one or more fans for circulating air through the cabinet to cool the devices, and one or more space heaters disposed in the cabinet. The drive also features temperature sensors used to measure various temperatures of the drive, a controller communicatively coupled to the sensors, and one or more variable frequency drives (VFD) for the fans. The controller may receive measurements regarding the ambient and power device temperatures and apply controls to vary the space heater power and fan speed in response to environmental changes.

A screen definition device includes a screen data generating unit that outputs screen data generated by combining model screen data in which section information is set, with screen definition tables for the model screen data; a screen data combining unit that combines the screen data with the other screen data based on a reference relation indicated by link information of the screen data and the link information of the other screen data; and a screen definition table setting unit that sets screen definition tables in a table form.

In a communication system in which a numerical controller and IO units each having a communication controller are connected, communication data is transmitted and received between the numerical controller and the communication controller of the IO units. The communication controller returns the communication data to the numerical controller when an ID contained in the communication data received from the numerical controller matches an ID set to an ID setting unit of the communication controller.

A system provides a design interface for designing and implementing graphical user interfaces that users can access through web browsers. Depending on the configuration of the graphical user interfaces, the users may be able to monitor and control industrial processes by interacting with components that correspond to the industrial processes as displayed in user interfaces at client devices. The design interface includes functionality for selecting preprogrammed components, or for generating new components for display. The design interface further allows designers to associate data values received from a variety of sources with properties of the components in the user interfaces. In particular, properties associated with a component of an interface are stored in property tree structures, making dynamic changes to the components possible. Data bindings between subtrees representing components and sets of data from industrial and other sources allows for designs that scale with the availability of the data.

A system provides a design interface for designing and implementing graphical user interfaces that users can access through web browsers. Depending on the configuration of the graphical user interfaces, the users may be able to monitor and control industrial processes by interacting with components that correspond to the industrial processes as displayed in user interfaces at client devices. The design interface includes functionality for selecting preprogrammed components, or for generating new components for display. The design interface further allows designers to associate data values received from a variety of sources with properties of the components in the user interfaces. In particular, properties associated with a component of an interface are stored in property tree structures, making dynamic changes to the components possible. Data bindings between subtrees representing components and sets of data from industrial and other sources allows for designs that scale with the availability of the data.

An update management program makes an information processing device realize functions of: acquiring updated version information on software of an engineering tool and firmware of a control device; acquiring a software version of the engineering tool installed in the information processing device; acquiring a firmware version of the firmware installed in the control device connected to the information processing device; confirming available updated versions for the software version and for the firmware version on the basis of comparison with the updated version information; creating an update screen for selecting auto-updating for the software and the firmware installed; and instructing that the software of the engineering tool and the firmware of the control device for which the auto-updating is selected on the update screen and the updated versions are confirmed be automatically updated to the updated versions.

In accordance with at least one aspect of this disclosure, a system can include a main board, two or more redundant CPUs for any number of channels operatively connected to the main board and two or more power sources operatively connected to provide power to at least one or more of the two or more CPUs. A respective isolated communications block can be operatively connected to each of the two or more CPUs configured to provide external communications from other components on the main board to a respective CPU.