Pater pierre Posted October 8, 2011 Report Share Posted October 8, 2011 I'm running a V570 with expansion modules : Ex-A1 with 5x IO-DI8-TO8 and 1x IO-AI4-AO2; I recently added 2x IO-D16A3-TO16. Now the PLC gives very frequently an expansion error. When this occurs, PLC gives the black text screen, the 2 new modules get a flashing green run led, the older modules remain running (fixed green led). Never had problems before unless with these new modules. I even disconected all IOs from the new modules, but it keeps going from time to time into expansion error. Are there incompatibilities known with this configuration? Is there a way to manipulate the conditions that cause the error (change SB's, timers,...?) Suggestions welcome ! Quote Link to comment Share on other sites More sharing options...
MVP 2023 Joe Tauser Posted October 9, 2011 MVP 2023 Report Share Posted October 9, 2011 Just guessing, but you may need to upgrade your EX-A1 to an EX-A2X. I don't know how well the IO-16A3's play with the older module - the creators will have to shed some light on this. Joe T. Quote Link to comment Share on other sites More sharing options...
R.Mozes Posted October 9, 2011 Report Share Posted October 9, 2011 Dear Sir, Please review my comments below and send your feedback to support@unitronics.com : · How did you install all the I/O's? are they installed in one din rail properly? · Can you send us any picture of the system which include all the models? · Sorry to bother you with this question but Please verify that you select the correctmodels in HW. Cheers, Quote Link to comment Share on other sites More sharing options...
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