Hi all, I am currently porting the S7 query sanitizer to the new S7 driver. When implementing the initial S7 driver more than 3 years ago I noticed my S7 1200 would accept write requests with multiple addresses and with arrays, however I would only get a return code OK for the first element of the first address. So I implemented some code to split write requests into single address and single item write requests. A guy from the SPS forum confirmed that an S7 1200 would only accept single item write requests.
I am however not 100% sure if this limitation is actually true and if it applies to all S7 devices the same way. I would be very happy if you could perhaps verify, confirm or falsify my knowledge on this. Being able to send arrays or multiple addresses would extremely speed up communication. Chris
