These errors may occur when you use the Modbus protocol for the selected COM interface (error codes in hex numbers).
Error number:  | 
Cause:  | 
Remedy:  | 
|---|---|---|
16#01  | 
Unsupported function code.  | 
Please contact the technical support.  | 
16#02  | 
Address error or register with write-protection.  | 
Change the address and make sure the register has write permission.  | 
16#03  | 
Data format or data range error.  | 
Please contact the technical support.  | 
16#06  | 
Server busy (max. number of server connections reached).  | 
Retry to send the request or increase the number of clients on the server.  | 
16#0B  | 
Gateway error: no response from specified station number.  | 
Make sure there are no duplicate station numbers.  | 
16#F8  | 
Reading not possible because the specified memory is blocked by the settings.  | 
Make sure the memory area to read is set in the application settings.  |