Hi, I have one Device from SCHNEIDER ( 192.168.0.41) send modbus request to Prosoft device ( 192.168.0.154/155). In this Modbus Communication I am getting one error response. After Query and Respond communication Schneider Unit send error message to Prosoft device. Frame Check Sequence 0xf6e37764 Message : Bad CheckSum I want to understand meaning of this message. Thanmks! Log photo alt text Wireshark Log asked 16 Apr '14, 02:51  lalitvedak edited 16 Apr '14, 05:13  grahamb ♦ |
One Answer:
Turn off the Ethernet protocol preference "Assume packets have FCS". Either through the preferences dialog or by right clicking the Ethernet part of the frame in the packet details pane following the Protcol Preferences link on the menu. answered 16 Apr '14, 05:12 grahamb ♦ |
Thanks for your replay. I want to understand meaning of this message. Is send and received is activity is successful or partially completed ? Thanks
Turning off the protocol preference allows the Modbus dissection to proceed and all the requests and responses looked good to me.
Did you try it, and if so did you see any issues?