data log

Sorry if I'm inconvenient, however I wanted to ask you something. Look I was working with my own project, I have three basic segments where I'm Creating a data log with DataLogCreate functionfirst, then I'm catching the bit outDone of the same block, after that I'm using this bit to enable the DataLogWrite function, then I'm triggering the data writing into the data block which I'm using to set the parameters. Basically I'm using a part of the S7-1200 system manual sample, however I have problems to set the REQ (request) in all the functions, I tried to use the positive edge with a flank detector but theres no activation, I tried to activate a bit and then desactivate it but theres no signal that the function is working, 'cause the BUSY, DONE and ERROR bits are in FALSE, and the status word remain in 16#7000 (theres no peticion being processed). I tried to use your sample but I have the same problem, everithing runs ok but I cannot set the REQ parameter to make the functions work.

I'm working with CPU1214C V2.0 and TIA PORTAL PROFESSIONAL V11

I'll be grateful for your response