Programmable logic controller, graphic logic controller, control program creation device, program, and storage medium

• US 20050288802A1
• Filed: 06/22/2005
• Published: 12/29/2005
• Est. Priority Date: 06/28/2004
• Status: Abandoned Application

• Current Assignee: Digital Electronics Corporation
• Original Assignee: Digital Electronics Corporation
• Inventors: Yamada, Masaaki
• Application Number:
  US11/158,360
• Publication Number:
  US 20050288802A1
• Time in Patent Office: Days
• US Class Current: 700/83
• CPC Class Codes: G05B 19/05 Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts

Abstract

The present invention includes: a control program storage section for storing a control program; a control section, executing a command in the control program, which controls a device; and an IF section for enabling connection to a network. The control program storage section is capable of storing, as a command in the control program, a computer control command for controlling a computer connected to the network. When the control program storage section stores a computer control command, the control section transmits through the IF section to the computer a command based on the computer control command.

Claims

1. A programmable logic controller, comprising:

a storage section for storing a control program;

a control section, executing a command in the control program, which controls a device; and

a communication section for enabling connection to a network, wherein;

the storage section is capable of storing, as the command in the control program, a terminal control command for controlling a terminal connected to the network, and

when the storage section stores the terminal control command, the control section transmits through the communication section to the terminal a command based on the terminal control command.

2. The programmable logic controller according to claim 1, further comprising a command separation section for separating the terminal control command from the command in the control program.

3. The programmable logic controller according to claim 1, wherein the command based on the terminal control command is a command for executing a predetermined program stored in the terminal.

4. The programmable logic controller according to claim 2, wherein the command based on the terminal control command is a command for executing a predetermined program stored in the terminal.

5. The programmable logic controller according to claim 3, wherein:

the terminal stores a predetermined name corresponding to message data which instructs execution of the predetermined program, and

the control section transmits the predetermined name as the command based on the terminal control command.

6. The programmable logic controller according to claim 4, wherein:

the terminal stores a predetermined name corresponding to message data which instructs execution of the predetermined program, and

the control section transmits the predetermined name as the command based on the terminal control command.

7. The programmable logic controller according to claim 3, wherein the execution of the predetermined program includes at least one of (i) activation of an application program, (ii) reading out of a file managed by the application program, and (iii) change of a display screen image in the terminal.

8. The programmable logic controller according to claim 4, wherein the execution of the predetermined program includes at least one of (i) activation of an application program, (ii) reading out of a file managed by the application program, and (iii) change of a display screen image in the terminal.

9. The programmable logic controller according to claim 5, wherein the execution of the predetermined program includes at least one of (i) activation of an application program, (ii) reading out of a file managed by the application program, and (iii) change of a display screen image in the terminal.

10. The programmable logic controller according to claim 6, wherein the execution of the predetermined program includes at least one of (i) activation of an application program, (ii) reading out of a file managed by the application program, and (iii) change of a display screen image in the terminal.

11. The programmable logic controller according to claim 2, wherein the control program contains identification information for identifying the terminal in accordance with the terminal control command.

12. A graphic logic controller, comprising:

a storage section for storing a control program;

a control section, executing a command in the control program, which controls a device;

a display section for showing a state of the device; and

a communication section for enabling connection to a network, wherein;

the storage section is capable of storing, as the command in the control program, a terminal control command for controlling a terminal connected to the network, and

when the storage section stores the terminal control command, the control section transmits through the communication section to the terminal a command based on the terminal control command.

13. A control program creation device creating a control program used in a programmable logic controller or a graphic logic controller which includes a communication section for enabling connection to a network,

the control program creation device comprising a command creation section for creating, as a command in the control program, a terminal control command for controlling a terminal connected to the network.

14. A program, causing a computer to function as a control section of a programmable logic controller which includes:

a storage section for storing a control program;

the control section, executing a command in the control program, which controls a device; and

a communication section for enabling connection to a network, wherein;

the storage section is capable of storing, as the command in the control program, a terminal control command for controlling a terminal connected to the network, and

when the storage section stores the terminal control command, the control section transmits through the communication section to the terminal a command based on the terminal control command.

15. A program, causing a computer to function as a control section of a graphic logic controller which includes:

a storage section for storing a control program;

the control section, executing a command in the control program, which controls a device;

a display section for showing a state of the device; and

a communication section for enabling connection to a network, wherein;

the storage section is capable of storing, as the command in the control program, a terminal control command for controlling a terminal connected to the network, and

when the storage section stores the terminal control command, the control section transmits through the communication section to the terminal a command based on the terminal control command.

16. A program, causing a computer to function as a command creation section of a control program creation device creating a control program used in a programmable logic controller or a graphic logic controller which includes a communication section for enabling connection to a network, wherein

the control program creation device includes a command creation section for creating, as a command in the control program, a terminal control command for controlling a terminal connected to the network.

17. A storage medium, storing a program causing a computer to function as a control section of a programmable logic controller which includes:

a storage section for storing a control program;

the control section, executing a command in the control program, which controls a device; and

a communication section for enabling connection to a network, wherein;

the storage section is capable of storing, as the command in the control program, a terminal control command for controlling a terminal connected to the network, and

when the storage section stores the terminal control command, the control section transmits through the communication section to the terminal a command based on the terminal control command.

18. A storage medium, storing a program causing a computer to function as a control section of a graphic logic controller which includes:

a storage section for storing a control program;

the control section, executing a command in the control program, which controls a device;

a display section for showing a state of the device; and

a communication section for enabling connection to a network, wherein;

the storage section is capable of storing, as the command in the control program, a terminal control command for controlling a terminal connected to the network, and

when the storage section stores the terminal control command, the control section transmits through the communication section to the terminal a command based on the terminal control command.

19. A storage medium, storing a program causing a computer to function as a command creation section of a control program creation device creating a control program used in a programmable logic controller or a graphic logic controller which includes a communication section for enabling connection to a network, wherein

the control program creation device includes a command creation section for creating, as a command in the control program, a terminal control command for controlling a terminal connected to the network.