how to read a value inside a DB

[steven noppe]

I already read the docs, but I'm still having trouble understanding how to read a certain value inside a DB.

for example : I want to read an integer inside a DB (200) at address (435).

If I try this :

iResult = m_Client.ReadArea(S7Consts.S7AreaDB, 200, 435, 1, S7Consts.S7WLInt, m_DataBuffer, ref iSizeRead);

the function results in : 9437184

iSizeRead = 0, so I guess no data is read.

what am I doing wrong?

edit : found my problem : The variable in the PLC was a short int (= 1 byte) and I tried to read S7WLInt which is 2 bytes big. I replaced this one with S7WLByte and that solved my problem.