Ladder diagram monitoring device capable of additionally displaying operation situation of CNC in comment

• US 10,139,805 B2
• Filed: 09/16/2016
• Issued: 11/27/2018
• Est. Priority Date: 09/17/2015
• Status: Active Grant

• Current Assignee: Fanuc Corporation
• Original Assignee: Fanuc Corporation
• Inventors: Ino, Yasuyuki
• Primary Examiner(s): Tecklu, Isaac T
• Application Number:
  US15/267,161
• Publication Number:
  US 20170083017A1
• Time in Patent Office: 802 Days
• Field of Search: None
• CPC Class Codes: G05B 19/406 characterised by monitoring or safety G05B19/19 takes precedence
• CPC Class Codes: G05B 2219/13052 Display of ladder diagram
• CPC Class Codes: G05B 2219/33297 Diagnostic, test, debug
• CPC Class Codes: G05B 2219/34273 Pc and plc and nc integrated, pcnc concept
• CPC Class Codes: G05B 2219/36038 Ladder program for plc, using functions and motion data

Abstract

A ladder diagram monitoring device displays an operation situation of a ladder program executed on a programmable controller built in a CNC on a monitor. A comment added to a circuit of the ladder program is provided with a region for displaying information on an operation situation of the CNC, the operation situation of the ladder program is reflected in the region, and display data in which the operation situation of the CNC is displayed is displayed.

Claims

1. A ladder diagram monitoring device which displays an operation situation of a ladder program on a monitor and is capable of describing, in the ladder program, comment information added to a circuit executed on a programmable controller built in a numerical controller,

Wherein the comment information added to the circuit is provided with a region for displaying information on an operation situation of the numerical controller, and

the ladder diagram monitoring device comprises:

memory and processor to execute;

a ladder program operation situation acquisition unit that acquires information on the operation situation of the ladder program;

a CNC operation situation acquisition unit that acquires the information on the operation situation of the numerical controller;

a display data generation unit that generates display data, which reflects the operation situation of the ladder program and is for displaying the operation situation of the numerical controller, in the region in the comment information added to the circuit, based on the ladder program, the information on the operation situation of the ladder program, and the information on the operation situation of the numerical controller; and

a display unit that displays the display data, wherein the region in the comment information added to the circuit presents a keyword corresponding to the information on the operation situation of the numerical controller, and the display data generation unit is configured to generate the display data by replacing the keyword in the comment information added to the circuit by the information on the operation situation of the numerical controller corresponding to the keyword.

2. The ladder diagram monitoring device according to claim 1, further comprising

a CNC information list table in which the keyword corresponding to the information on the operation situation of the numerical controller, included in the comment information added to the circuit of the ladder program, is registered, wherein

the CNC operation situation acquisition unit is configured to acquire the information on the operation situation of the numerical controller corresponding to the keyword registered in the CNC information list table from the numerical controller.

3. The ladder diagram monitoring device according to claim 1, wherein the ladder diagram monitoring device is configured in the numerical controller.