Error codes for Modbus

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.

Modified on: 2024-04-03Feedback on this pagePanasonic hotline