Hey there, I have problems with overlapping data on the subnet. I have five rectifier devices connected on the subnet transmitting and receiving some control and status bit as well as values. In normal condition (only connected - no rectifier is on duty/charges) the communication is fine and I can talk to any of the five devices.
But if I start one of the devices (in the moment it is only device 1 - all others are working), which means that the rectifier start charging load with up to 100A the bus communication is influenced.
The Logger shows that there are sometimes two data packages overlapping. We installed a oscilloscope and could see, that the time between the start of two data packages went up from 250ms to around 800ms.
Shield of the bus is grounded on the device side and on the coupler side. 120Ohm resistor between pin 8 and 9 is installed. connected pins are 5 (GND) and 8 and 9.
Anyone have some input for this behaviour.