Rob N.

I have a project I have put together that has a CompactLogix L30ER Processor and two of its I/O cards are the 1769-HSC modules. I have these working, but I am trying to change the On and Off Values (Low and High Values) of the outputs from PLC Code. I can change these with tags HSC1_CONFIG.Range0To11[0].LowLimit and HSC1_CONFIG.Range0To11[0].HighLimit where (HSC1_CONFIG) is pointed to the CONFIG of Slot 1 in the Rack (Local:1:C). I need to be able to change these value on grade change, but what my code seems to do is change the numbers displayed on the card, but the card is not using the new numbers until I either change something on the card settings and click Apply or re-power up the rack. Is there something else I need to trigger to make these values that are updating actually be used by the HSC Card. I have tried setting the .Ctr0En, Ctr1En bits to 0 when doing this, and also .RangeEN to 0, but that still does not help. Any Ideas???

I found this happens too, but reading the manual further I found that if you removed the .Ctr0En, .Ctr1En, .Ctr2En, .Ctr3En, enable bits so that these were false then this did not fault out.