you have not answered my question if thats the sequence but as I said, you cant just make the openfeedback your condition of opening/closing the next valve as openFB will turn off once the other valve turns on, which happens on valve6. better to use a MOV state_dint and make that signify what state the program is in and use it as a condition in opening the valve. I cant open your file, don't have that version of RS