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).?
Basics of MODBUS communication via RS485
in Vision & Samba PLC + HMI Controllers & VisiLogic Software
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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.