Telegrams with different starting addresses in one cycle

Hello everybody,

I would like to send two (or more) telegrams with different starting addresses. 

Right now, I just add the second telegram after the first one (see below). But I always get the errors:

Anwendermeldung: Modbus error: Transaction ID: 25, Client State:      2  , Detailed state: 16#0000

Anwendermeldung: Modbus error: Transaction ID: 25, Client State:      4  , Detailed state: 16#8200

--> What is wrong with my code below? If I send the same request 2 times, than there is no error...

Thank you very much!

"IDB_MB_CLIENT"(REQ := "DB_Data".stControl.bRequest,

                DISCONNECT := false, // false: Set up the connection

                MB_MODE := "DB_Data".arrTaskData[("DB_Data".cntr ), 0],

                MB_DATA_ADDR := "DB_Data".arrTaskData[("DB_Data".cntr ), 1],

                MB_DATA_LEN := "DB_Data".arrTaskData[("DB_Data".cntr ), 2],

                MB_DATA_PTR := "DB_Data".arrData,

                CONNECT := "DB_Data".stConnection)

"IDB_MB_CLIENT"(REQ := "DB_Data".stControl.bRequest,

                DISCONNECT := false, // false: Set up the connection

                MB_MODE := "DB_Data".arrTaskData[("DB_Data".cntr+1 ), 0],

                MB_DATA_ADDR := "DB_Data".arrTaskData[("DB_Data".cntr+1 ), 1],

                MB_DATA_LEN := "DB_Data".arrTaskData[("DB_Data".cntr+1 ), 2],

                MB_DATA_PTR := "DB_Data".arrData,

                CONNECT := "DB_Data".stConnection)

Hello,

did you look at help, what that 16#8200 means? Look and read carefully.

I implemented now, that the new request shall only start, when BUSY is done

"BUSY: Modbus transaction in " progress"".

but still i get error 8200. I dont know why. 

i also give a new stConnection.ID for every call of the function

EDIT: one could also ask the question: How is it possible to do different Modbus Requests without stopping the device and change the code manually?

Hello,

look you must wait to .DONE bool signal, not BUSY. BUSY means that transaction is still in progress, not ended. Then you can change your request. Pls also monitor ERROR signal for eventaully problems.