US 12,436,524 B2
SCADA web HMI client device and SCADA web HMI system
Ryo Shimizu, Tokyo (JP); Akira Nojima, Tokyo (JP); and Nobuo Shimizu, Tokyo (JP)
Assigned to TMEIC CORPORATION, Tokyo (JP)
Appl. No. 18/007,487
Filed by TMEIC CORPORATION, Tokyo (JP)
PCT Filed Jul. 7, 2021, PCT No. PCT/JP2021/025635
§ 371(c)(1), (2) Date Jan. 31, 2023,
PCT Pub. No. WO2023/281663, PCT Pub. Date Jan. 12, 2023.
Prior Publication US 2023/0280724 A1, Sep. 7, 2023
Int. Cl. G05B 19/418 (2006.01)
CPC G05B 19/4183 (2013.01) [G05B 19/4185 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A SCADA web HMI client device comprising:
a first monitor;
a second monitor; and
processing circuitry configured to
run a first web browser that is displayed on the first monitor and draws an HMI screen for monitoring and controlling an industrial plant;
run a second web browser that is displayed on the second monitor and draws the HMI screen;
obtain from a web server an operation right table that defines the operability of the HMI screen for each web browser, wherein the first web browser being not permitted to operate the HMI screen of the first monitor while the second web browser being permitted to operate the HMI screen of the second monitor by the operation right table;
based on the operation right table, run the first web browser to draw in an inoperable state an operation part positioned on the HMI screen of the first monitor; and
based on the operation right table, run the second web browser to draw in an operable state the operation part positioned on the HMI screen of the second monitor.