Posted 6 May 2019 (edited) Hello All, I am in the process of installing a DPM Scanner to one of our machines. I am trying to program an ASCII String Compare to compare the scanned part number, stored in a string as ST14:0, to a constant value stored in ST15:13. I have used this tactic before in other applications and it has worked fine every time, except this time. Am I doing something wrong? Is there a setting I am not aware of? Please see the attached image. Thanks in advance! Edited 6 May 2019 by Rob Nelson Share this post Link to post Share on other sites
Posted 6 May 2019 That particular rung is still in edit. Note the e's on the left. Share this post Link to post Share on other sites
Posted 7 May 2019 Yes, I took the snap shot offline. Thank you. Share this post Link to post Share on other sites
Posted 8 May 2019 Various possibilities: in a subroutine which isn't called, string not changed/zeroed between scans (otherwise the one shot won't trigger if scan is the same), one shot address used elsewhere. Share this post Link to post Share on other sites