Settings for Reading and Writing Asynchronous Parameters of the Drive 
Asynchronous writing: 
1.  Follow the steps as shown in the figure below, open OB1 and Insert STL Network. 
 
Enter the commands below into STL Network, and then a screen displays as shown in the figure 
below. Then, click OK button. 
 
CALL    "WRREC" , DB53 
REQ      :=M41.7 
ID        :=2042 
INDEX :=16#4d2 
LEN      :=6 
DONE    :=M41.1 
BUSY    :=M41.2 
ERROR :=M41.3 
STATUS:=MD46 
RECORD:=P#DB2.DBX 2.0 BYTE 6