Hi Chris, I am testing what was requested with a cpu 1214C.
The 1200 PLC can receive several items and confirm its writing of. Each item is confirmed individually as does the S7-300 / 400. If you have a specific writing pattern that you need to try, I am at your service. Best regards, Enviado mediante Bandeja de entrada de BlackBerry Hub+ para Android Mensaje original De: [email protected] Enviados: 3 de enero de 2020 17:56 Para: [email protected] Responder a: [email protected] Asunto: [Help Needed] A little help with some fact-checking for S7 write requests 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
