ModbusFB - Modbus TCP Slave non standard port

2022-04-19T15:25:46.651000Z

sure ;-)

ModbusFB - Modbus TCP Slave non standard port

2022-04-19T15:08:03.400000Z

Quick correction to the workaround code above if anyone needs it.
The line between the implicit on and off should set the internal private variable.

{implicit on}
server._uiPort:=28502;
{implicit off}

ModbusFB - Modbus TCP Slave non standard port

2022-04-19T13:29:42.416000Z

Thank you very much Ullrich. I appreciate the quick turn around. You guys are awesome.

Ken

ModbusFB - Modbus TCP Slave non standard port

2022-04-19T12:57:37.207000Z

Hello kbus,
sorry for the inconvinience, this slipped through all the testing :(
There is an easy workaround:

// Configure the MODBUS TCP server
server(fcsSupported:=fcsSupported, dataModel:=exampleDataModel.tableDefs, xEnable:=FALSE, wsInterfaceName:="Ethernet 2", uiPort:=28502); // uiPort:=28502 doesnt work
// Start the server, set internal variable uiPort prior xEnable := TRUE
{implicit on}
server.uiPort:=28502;
{implicit off}
server(xEnable:=TRUE);

and all works as expected.
The whole problem was: assignement of uiPort at rising edge of xEnable did not happen...
This bug is listed at MODBUS-108 at our end, fixed already and to be released with MODBUS 4.2.0.0 latest.

regards Ullrich

ModbusFB - Modbus TCP Slave non standard port

2022-04-14T00:14:59.084000Z

Found something more that indicates this might be a bug actually. when expanding the object in the watch window I see that the public uiPort variable is set, but the private internal uiPort is still 502. Is this a bug maybe?

ModbusFB - Modbus TCP Slave non standard port

2022-04-13T23:13:18.962000Z

Hello,
Using the example project ModbusFB I'm able to run the project as a modbus slave and connect and read just fine if I use port 502. However, if I use an alternate port, it still uses port 502 and I'm unsure why.

If I exclude the uiPort option it uses 502. If I add the uiPort option as below, it shows it is set as 28502, but I cannot connect to that port and can still connect to port 502. Any idea of what's going on?

serverTCP(fcsSupported:=fcsSupported, dataModel:=tableDefs, wsInterfaceName:="", uiPort := 28502);

Recent posts to ModbusFB - Modbus TCP Slave non standard port

ModbusFB - Modbus TCP Slave non standard port

ModbusFB - Modbus TCP Slave non standard port

ModbusFB - Modbus TCP Slave non standard port

ModbusFB - Modbus TCP Slave non standard port

ModbusFB - Modbus TCP Slave non standard port

ModbusFB - Modbus TCP Slave non standard port