R
Hello,
I am trying to communicate modbus rtu in multi drop environment.
I am using 1 master and 2 slave (address 1 and 2).
Now the problem i am facing is at slave side.
on each slave, i can get wrong frame in two ways.
1. A request (for slave 1) send by the master to slave 1 but this will also get received by slave 2. (and of course slave 2 have to ignore).
2. response of slave 1 (to master) is get received by slave 2 too.
I can handle the first case, but in second case it seems quite impossible because from structure of wrong frame is different when it comes from master or another slave.
Any suggestion.
I am trying to communicate modbus rtu in multi drop environment.
I am using 1 master and 2 slave (address 1 and 2).
Now the problem i am facing is at slave side.
on each slave, i can get wrong frame in two ways.
1. A request (for slave 1) send by the master to slave 1 but this will also get received by slave 2. (and of course slave 2 have to ignore).
2. response of slave 1 (to master) is get received by slave 2 too.
I can handle the first case, but in second case it seems quite impossible because from structure of wrong frame is different when it comes from master or another slave.
Any suggestion.