Best Regards, 1. I am having a problem connecting a V350 unitronics by modbus RTU RS485 as slave to a master (modbusPoll software-PC) RS485 4 Wire. I have checksum error in this configuration. In any other configuration the communication works fine. By other configuration I mean having modbusPoll as master RS485 2 Wire and RS232. I am just having problem with mobusPoll as master RS485 4 WIRE. Thank you for your answer.
2. I see by default RS485 2 WIRE on V350 PLC unitronics. Is there any model within the catalog of unitronics, having RS485 4 WIRE available (physically).?
Thanks for your answer.
