regards: How could I test RS485(half duplex) or RS422(full duplex) any positive suggestion is welcome. best regards to you all mike-smith
RS485 half duplex and full duplex question
Started by ●December 15, 2007
Reply by ●December 15, 20072007-12-15
On 2007-12-15, mikeotp@gmail.com <mikeotp@gmail.com> wrote:> How could I test RS485(half duplex) or RS422(full duplex)With an oscilloscope and a "reference" device that you can set up to send and receive data. -- Grant Edwards grante Yow! Yes, but will I at see the EASTER BUNNY in visi.com skintight leather at an IRON MAIDEN concert?
Reply by ●December 15, 20072007-12-15
On 12$B7n(B16$BF|(B, $B>e8a(B12$B;~(B19$BJ,(B, Grant Edwards <gra...@visi.com> wrote:> On 2007-12-15, mike...@gmail.com <mike...@gmail.com> wrote: > > > How could I test RS485(half duplex) or RS422(full duplex) > > With an oscilloscope and a "reference" device that you can set > up to send and receive data. > > -- > Grant Edwards grante Yow! Yes, but will I > at see the EASTER BUNNY in > visi.com skintight leather at an > IRON MAIDEN concert?regards: excuse me ,what is the "reference" device? could someone excellent to explain more detail? any positive suggestion is welcome. best regards to you all mike-smith
Reply by ●December 15, 20072007-12-15
On 12$B7n(B16$BF|(B, $B>e8a(B12$B;~(B19$BJ,(B, Grant Edwards <gra...@visi.com> wrote:> On 2007-12-15, mike...@gmail.com <mike...@gmail.com> wrote: > > > How could I test RS485(half duplex) or RS422(full duplex) > > With an oscilloscope and a "reference" device that you can set > up to send and receive data. > > -- > Grant Edwards grante Yow! Yes, but will I > at see the EASTER BUNNY in > visi.com skintight leather at an > IRON MAIDEN concert?regards: excuse me ,what is the "reference" device? could someone excellent to explain more detail? ^.^ any positive suggestion is welcome. best regards to you all mike-smith
Reply by ●December 15, 20072007-12-15
On 2007-12-15, mikeotp@gmail.com <mikeotp@gmail.com> wrote:> On 12$B7n(B16$BF|(B, $B>e8a(B12$B;~(B19$BJ,(B, Grant Edwards <gra...@visi.com> wrote: >> On 2007-12-15, mike...@gmail.com <mike...@gmail.com> wrote: >> >> > How could I test RS485(half duplex) or RS422(full duplex) >> >> With an oscilloscope and a "reference" device that you can set >> up to send and receive data. >> >> -- >> Grant Edwards grante Yow! Yes, but will I >> at see the EASTER BUNNY in >> visi.com skintight leather at an >> IRON MAIDEN concert? > > regards: > > excuse me ,what is the "reference" device?A device with an RS485 or RS422 interface that you know works.> mike-smithYou write rather English rather oddly for somebody named Mike Smith... -- Grant
Reply by ●December 15, 20072007-12-15