Ken, nothing is recorded in the System Console when I change the value of 'Input OK'.
Dave, I am aware that Block and OBlocks are not the same thing, and I do have both with the name 'Platform 1'.
I have my blocks on a Layout Editor Panel, but I also use OBlocks to define paths, signals, etc.
I assumed that the Blocks and OBlocks were somehow linked (if they had the same name), and that the Value referred to the Block - if it belongs to the OBlock, where is it visible? Nothing in Tools/Tables/Occupancy Block refers to a Value.
If thi is not correct, is there any way of changing a block value via Logix?
Dave
