> 2011/1/21 Ruben J=F6nsson >=20 > > If transparent mode is used and the modbus telegram frame can be sent i= n a > > continuous stream, the modbus protocol should take care of the addressi= ng > - > > all > > XBees receives all communication but it is only the addressed one that > > replies. >=20 >=20 > So transparent mode should take care of everything and I should be good t= o > go? I think so. Unless you have any gaps (even relatively short ones), introduc= ed=20 by the XBee, between characters for one telegram in the receiving end. Afte= r=20 all, it is a radio which must have an own over-the-air protocoll that takes= =20 care of the radio traffic. It may very well be that the serial character st= ream=20 is divided into several radio packets that is sent separately over the air. /Ruben =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D Ruben J=F6nsson AB Liros Electronic Box 9124, 200 39 Malm=F6, Sweden TEL INT +46 40142078 FAX INT +46 40947388 ruben@pp.sbbs.se =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .