I've tried to do a new hw and blocks configuration. First time, when i send the reset execute the block send me this error: E7FE_0800. But not fault on the module and no error on the PLC.

The second time new error code (and plc in error), screen below. 

Owei

Is there everything green at the PLC and RF120C before the reset command?

Please create a new Technology Object with reader parameterization of "RF300 general" and try again.

 Yes all green before the reset command.

Same problem with RF300 General.

Owei

Hm. I have no clue. There's no magic needed to get a RFID reader going. If you want you can ZIP your project and upload it here. I could have a look at it.

 Yes, sure. Sorry for the late answer.

Owei

Hi Carmine91,

I just tried your project without any problem. I used a RF310R and S7-1214 and I didn't change something at the code. Maybe there's something broken at your reader cable to the RF120C.

 It's working ?? Really ? Very strange if the problem is the cable.

It's a Siemens cable product code 6GT2091-4LH50. How can i check if the cable is properly working?

You have downloaded the program, send the reset command and all is working fine ?

My code is fine then.

So the problem is the cable ? How to test it ? Unfortunately I don't have a spare cable here.