Modbus RTU and TCP

[jmir]

Read delay blocks the whole Modbus mapper operation so no other read or write can happen.
Since RTU1 and TCP are shared one solution is to disable RTU1 and move your device to RTU2. This will solve the TCP blocking issue.
Writing is handled only after a complete polling cycle is finished. Does the same 1 register per second rule apply to writing?

Yes it's the same to write...

Are write requests queued or only last one is done? I mean, if during polling cycle we write 1-2-3 to an address, will the three values be written to the same address or only the last one?

Thanks.