MD021 Plastic Wire Drawing Machine User Manual 
 
Display  the  bus  voltage 
when  the  latest  fault 
occurs. 
 
Group F3: Communication Parameters 
For  details,  see  "Modbus  Serial  Communication  Protocol  for  the 
Plastic Wire Drawing Machine." 
Group F4: User Password and Parameter Copy 
 
Unauthorized  personnel  are  not  allowed  to  view  and  modify  this 
parameter. 
If  this  parameter  is  set  to  any  non-zero  number,  the  password 
protection function is enabled. If you do not need a password, set this 
parameter to 00000. 
After a password is set, enter the correct password when you want to 
set parameters. If the entered password is incorrect, you cannot query 
or modify  parameters,  and  you can only view  the  running and stop 
display parameters. 
Remember  the  password  that  you  set.  If  you  forget  the  password, 
contact the vendor.