A control system which protects a control program securely and improves a convenience for a particular user in reading and writing an execution-use control program from and into a PLC. The control system includes: a controller which controls a production apparatus; a development-use computer which converts a control program that describes control of the production apparatus, into the execution-use control program that can be executed by the controller, and encrypts the execution-use control program converted, thus generating an edit-use key for editing and an execution-use key for execution; and a management server which manages information on the user. The development-use computer registers the edit-use key in a user management table of the management server, and transmits the execution-use key and the execution-use control program to the controller.

Apparatus and associated methods relate to a safety control system having a processor that (1) automatically interrogates a portable data storage device, (2) determines whether a configuration profile of the safety control system matches a stored configuration profile in the portable data storage device, (3) obtains network settings of the safety control system, and (4) stores network settings into the portable data storage device. In an illustrative example, a safety control system may include a processor designed to perform operations to configure the safety control system with a configuration profile stored in the portable data storage device or download network settings of the safety control system to the portable data storage device under some predetermined conditions. By using the above method, the safety control system may be quickly configured, and network settings may be easily obtained and backed up.

A chemical system for an operation exhibiting steady-state gain inversion is provided herein and includes a reactor configured to receive a feed stream and produce an outlet stream to form a process and a control device configured to control a process. The control device receives inputs indicative of an operational parameter and output variables and, in response to the inputs and output variables, provides a steady-state manipulated input configured to control or optimize the process. The control device includes an input disturbance model, a state estimator, a non-linear steady-state target calculator, and a regulator configured to provide a signal for adjustment of one or more inputs based on the steady-state manipulated input and associated output variables.

When a monitoring device for ladder program receives designation of a ladder program which is a confirmation object from a user, the monitoring device detects a branch circuit which is arranged above the ladder circuit which is the confirmation object in a ladder program and is closest to the ladder circuit and extracts a branch circuit which is to be a display object from the ladder program based on a type of the branch circuit which is detected. The monitoring device executes such processing up to a head of the ladder program so as to extract and display branch circuits up to the ladder circuit which is the confirmation object.

The invention relates to a motor control device, a control method, an information processing program and a recording medium, even though the network for receiving an output permission signal is not connected, the test run of the motor can be safely performed. Even though a signal generating element (104) of a servo driver (10) does not receive the output permission signal through a field network (30), if the connection to the field network (30) is determined to be not required, the signal generating element (104) does not generate the safety command.

The present invention aims to reduce an operation burden related to the change of reception processing in a master device when a device connected to a slave device is changed. A device communication managing unit (10) transmits the data received by a device (20) communicating with a device communication port (110) in a first mode to a field network (50) by using a data format used for transmitting the data received by the device (20) communicating in a second mode.

An injector control system for a coiled tubing unit includes a programmable logic controller arranged to receive a signal related to sensed parameters of a coiled tubing injection operation; a traction pressure control hydraulic circuit operable to adjust hydraulic pressure provided to at least one traction cylinder in a coiled tubing injection head; a motor pressure control hydraulic circuit operable to adjust hydraulic pressure provided to at least one motor of the coiled tubing injection head; and at least one of the traction pressure control hydraulic circuit and the motor pressure control hydraulic circuit including a proportional control valve in receipt of a variable electrical signal from the programmable logic controller. The programmable logic controller adjusts the signal delivered to the proportional control valve throughout the coiled tubing injection operation as dictated by the sensed parameters.

An injector control system for a coiled tubing unit includes a programmable logic controller arranged to receive a signal related to sensed parameters of a coiled tubing injection operation; a traction pressure control hydraulic circuit operable to adjust hydraulic pressure provided to at least one traction cylinder in a coiled tubing injection head; a motor pressure control hydraulic circuit operable to adjust hydraulic pressure provided to at least one motor of the coiled tubing injection head; and at least one of the traction pressure control hydraulic circuit and the motor pressure control hydraulic circuit including a proportional control valve in receipt of a variable electrical signal from the programmable logic controller. The programmable logic controller adjusts the signal delivered to the proportional control valve throughout the coiled tubing injection operation as dictated by the sensed parameters.

In order to be able, for control of an automation system, to project, establish, process and/or simulate device functions of the control devices used in a simple and flexible way, the invention provides a method by means of which at least one software module is made available in an execution environment (350) with a program function (301-305b, 311-315, 321a-324) that can be executed in the execution environment (350), where the program function (301-305b, 311-315, 321a-324) is a representative function of the device function (201-205b, 211-215) that is stored in an associated control device (101-105, 121-125) of the control system, the device function and the program function are at least partially identical, the device function comprises at least one first variable function parameter, and the program function comprises at least one second variable function parameter that is assigned to the first function parameter of the device function, the second function parameter is adjusted as a function of user inputs, the adapted second function parameter is transferred to the associated control device (101-105, 121-125) via a network (400), and the first function parameter is set at the value of the second function parameter. Furthermore, the invention provides a control device and control system that are designed to carry out the method.

Content management includes populating a library with modular objects and metadata associated with the modular objects. In response to a query, the library can be searched based in part on the metadata. The query can relate to implementation of an industrial process. One or more modular objects in the library can be identified as satisfying the query. A result of the query can be output and the output can include the identified modular objects and the respective metadata associated with the identified modular objects. The metadata can be anything known about the object that might not be accessible at runtime control.