-1|data bus|STX byte missing
-2|data bus|ETX byte missing
-3|data bus|wrong CRC
-4|data bus|unkown command byte
-5|data bus|NAK received
-6|data bus|bus locked or in use
-7|data bus|zero's received
-8|data bus|transaction id's do not match
-9|data bus|no reply time out
-10|data bus|unexpected reply length
-11|socket|wrong message tag
-12|socket|incorrect length byte
-13|socket|wrong checksum
-14|socket|check token incorrect
-15|socket|no reply
-16|socket|incomplete ip message received
-17|socket|no data (vec)
-18|socket|no data (select)
-20|gateway|unauthorized command
-21|gateway|unauthorized register
-22|gateway|encapsulation error
-23|gateway|invalid message received
-99|script|undefined
