Floboss 107

[RT_12704735]

Folks, I have an issue with KepserverEX connecting to an Emerson Floboss 107. We can run Radzio! modbus master and pull valid 16-bit integers and IEEE floating point values via modbus TCP. In KepserverEX I have created channels for modbusTCP, used Fisher serial drivers with ethernet encapsulation and various other drivers. When viewing diagnostics, there are messages about authentication issues. I have verified the user ID, password and access levels in the Floboss. I have tried no authentication on the ethernet port, user ID AND user access level and verified the corresponding settings in Kepserver with no luck. KepserverEX diagnostics show NO data being moved either direction. I assume this is due to authentication issues.  Any help/suggestions would be greatly appreciated.

Ray Taff

[rajskumar · Accepted solution]

Hello ,

As per driver help file, Some FloBoss 100 Series devices (such as FloBoss 107) fail to respond to TCP requests that use Explicit Congestion Notification (ECN). To communicate with these devices, the global TCP/IP ECN parameter must be disabled.

• For additional information on ECN, see this article: CS278269

Please let me know if you were able to resolve the issue after disabling ECN.