CP 340, ASCII protocol, receive problem

CP 340, ASCII receive
Hi,
I'm using following module: 340-1AH02-0AE0 for the serial communication.
Parameters of the the devices from which I'm trying to get a data are as following:
Transmission rate: 9600
7 data bits/character
1 stop bit
No parity, no flow control

I've parametrized this module like this:
Tab -ASCII:
End code of a receive message frame - On expiry of character delay time
Speed - 9600
Character frame:
Data bits - 7
Stop bits - 1
Parity - Any
Tab - Transfer:
Data flow control - None
Tab: Receiving data:
Prevent overwriting - Enable
Delete CP Receive Buffer on Startup - Enable

In the software I'm using standart Siemens block "P_RCV" which is configured:
IN:
EN_R - always 1 (sometimes I'm trying to change this state to see if something is changing)
R - always 0
Laddr - 272 (tha same as configured in HW conf)
DB_No - 360 number of data block to whom I want to write received data
DBB_No - 46 start byte, addres in DB360 from which I'll start writing the data

OUT:

NDR - always I've 0, only when I use Reset on input it is 1 for very short time
Error - always 0
Len - always 0
Status - always 16#0000
Eno - always 1

In the data block I'm declarating received data as a Char array.

On the module there is no fault, also diagnostic is not showing any fault.

Could you tell me why I'm not receiving any data from the device?
What is wrong what should I check?

Best regards
Lukasz