still asking CP 314 and CP 340
Does it mean that CP341 can be a Master AND Slave at the same mod. ?
But, CP 340 just be either Master or Slave ?
Moreover, I found that Siemens has a product (6ES7 870-1AA01-0YA0).
Its description is Simatic S7, Modbus master v3.1 .
Does it mean that it just be a Master ???
Thx~~