The following Yokogawa Electric products do not change the passwords of the internal Windows accounts from the initial configuration: CENTUM VP versions from R5.01.00 to R5.04.20 and versions from R6.01.00 to R6.08.0, Exaopc versions from R3.72.00 to R3.79.00.
https://web-material3.yokogawa.com/1/32094/files/YSAR-22-0001-E.pdf