JP2008033570A5

JP2008033570A5 -

Info

Publication number: JP2008033570A5
Application number: JP2006205419A
Authority: JP
Filing date: 2006-07-27
Publication date: 2009-01-15

Claims

A control system comprising a host computer and a programmable display connected to each other via a network,
The programmable display includes display means for displaying an operation screen indicating a state of a device controlled by a programmable logic controller;
Screen sharing means for displaying the resource transmitted from the host computer via the network in an overlapping manner on the operation screen;
Starting means for transmitting authentication information for starting the screen sharing means to the host computer,
The upper computer has login authentication means for authenticating a login user of the programmable display based on authentication information transmitted by the activation means,
The log-in authentication means changes the access authority level of the log-in user in accordance with the state of the programmable display.

The control system according to claim 1, wherein the state of the programmable display includes a solid number of the programmable display and an ID of an operator of the programmable display .

State of the programmable display device, the control system according to claim 1 or 2, wherein comprising the programmable display device connected conditions of the internal devices of the programmable logic controller.

An authentication method in a control system comprising a host computer and a programmable display connected to each other via a network,
An operation screen showing the state of the device controlled by the programmable logic controller is displayed on the programmable display,
Transmitting authentication information for starting a screen sharing function for displaying a resource transmitted from the upper computer via the network to be superimposed on the operation screen, to the upper computer;
Authenticates a login user of the programmable display based on the transmitted authentication information,
An authentication method in a control system, wherein an access authority level of the login user is changed according to a state of the programmable display.

A program for causing a computer to execute an authentication method in a control system including a host computer and a programmable display connected to each other via a network,
On the computer, a procedure for displaying an operation screen indicating the state of the device controlled by the programmable logic controller on the programmable display;
A procedure for transmitting authentication information for starting a screen sharing function for displaying a resource transmitted from the upper computer via the network in an overlapping manner on the operation screen;
A procedure for authenticating a login user of the programmable display based on the transmitted authentication information;
A program for executing a procedure for changing an access authority level of the login user in accordance with a state of the programmable display.

A computer-readable recording medium storing a program for executing an authentication method in a control system including a host computer and a programmable display connected to each other via a network,
On the computer, a procedure for displaying an operation screen indicating the state of the device controlled by the programmable logic controller on the programmable display;
A procedure for transmitting authentication information for starting a screen sharing function for displaying a resource transmitted from the upper computer via the network in an overlapping manner on the operation screen;
A procedure for authenticating a login user of the programmable display based on the transmitted authentication information;
A computer-readable recording medium having recorded thereon a program for executing a procedure for changing an access authority level of the login user in accordance with a state of the programmable display.