See the PE is now at V5.2.4 and with a number of errors being flagged of recent a 5.2.5 may be out soon as well.I updated v5.2.4. then put command so still failed but i changed put pin0-7 are successful form syntax check, input4-7 didn't successful, but input0-3 was fine! its strange why use pin0-7 only not input0-7! Im happy use all pin0-7 not a problem, thanks.