Process scheduler status is stored as numeric values behind the RUNSTATUS field. So, here are the values corresponding to each value.
FIELDVALUE XLATSHORTNAME ---------- ------------- 1 Cancel 2 Delete 3 Error 4 Hold 5 Queued 6 Initiated 7 Processing 8 Cancelled 9 Success 10 No Success 11 Posted 12 Not Posted 13 Resend 14 Posting 15 Generated 16 Pending