Hello everyone,

I'm trying to communicate S7-1500 with 6RA24 via USS bus. My setup is CPU1511 and CM PtP  (6ES7 540-1AB00-0AA0) processor.

 I've been following manual that is available on Siemens site with USS communication but I'm still getting and strange error.

At the PZD_LEN of USS_DRIVE_CONTROL_31 block I entered "4" (integer value), drive is configured for 4 PZD words and 3 PKW words.
I can see in the USS_Port_Scan_DB output ERROR goes high and the status is 8188 which means that the "PZD LEN is incorrect, should be 2,4, 6 or 8".