Error Invalid parameter(s) Modbus 750-652

Hello,
i am trying to control a Novocon S actuator with a 750-8110 PLC using a 750-652 modul, i used FBMbMasterSerial function block, the Baud rate is set to 9600 in the Modul as well as the Function block, databits is 8 on both, however whenever i run the program in the plc the variable “xIsConnected” is false and it shows an error “Invalid Parameter(s)”. the actuator is functional (configured in Novocon Configuration tool).
does anyone have an idea what can be a solution.
Best Regards,
hades00

Hello,
Interface of FbMbMasterSerial is
FbMbMasterSerial (FB)

Interface variables

Scope Name Type Initial Comment Inherited from
Input xConnect BOOL FbBaseInterface
I_Port WagoTypesCom.I_WagoSysComBase Name of the Interface (e.g. ‘COM1’, ‘SER7.2’, ) FbBaseInterface
udiBaudrate UDINT Baudrate (9600 = 9k6) FbBaseInterface
usiDataBits USINT Number of Bits per frame (5..8) FbBaseInterface
eParity WagoTypesCom.eTTYParity Parity FbBaseInterface
eStopBits WagoTypesCom.eTTYStopBits Number of Stop-Bits, see note (1) FbBaseInterface
eHandshake WagoTypesCom.eTTYHandshake TYPE of handshake (XON/XOFF, etc) FbBaseInterface
ePhysical WagoTypesCom.eTTYPhysicalLayer RS232, RS422, RS485, etc FbBaseInterface
Output xIsConnected BOOL FbBaseInterface
xError BOOL FbBaseInterface
oStatus WagoSysErrorBase.FbResult FbBaseInterface
Input eFrameType eMbFrameType eMbFrameType.RTU
tTimeOut TIME TIME#200ms
Inout utQuery typMbQuery
xTrigger BOOL
utResponse typMbResponse

where you are see an error “Invalid Parameters”?

when I run my program i get “error = true”, and when I open the oStatus it says the error descrition and it says “ Invalid Parameter(s)”. I assigned the I_Port to the 750-652 Modul name “_750_652_24” I dont know if thats the problem.

Please show all input variables what you are use. for assignment I usually use pointer something like that Port1 := ADR(_750_652_24) and then I_Port := ^Port1,
Check settings in the Wago I/O check or use default values.