Error codes for Modbus

These errors may occur when you use the Modbus protocol for the selected COM interface (error codes in hex numbers).

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