13/08/2013 PM 9845 0187 01 Page 19 of 24
11.4. Exception codes
Code Name Description
01 Illegal function The function code received in the query is not an
allowable action for the slave
02 Illegal Data Address The data address received in the query is not an
allowable address for the slave
03 Illegal Data Value A value contained in the query data field is not an
allowable value for the slave
06 Reprogramming Refused Command refused because previous command was
not yet executed
07 Command Refused Command refused because previous command was
not yet executed
08 Data Not Available Check Communication cable between Elektronikon and
the Gateway module
09 Illegal Command An unknown command is being sent
0A Invalid CRC Checksum The CRC16 checksum received is incorrect
0B Write Refused Parameter change refused
11.5. Examples
The examples below use the following parameters:
• Attached module : Mk5 – LU – GA30P_08
• Node ID : 5
11.5.1. Illegal Data Address
If the slave device is asked for a parameter that it is not able to process, the slave device answers with the error code Illegal
Data Address.
In this case f.i. the Required Motor Speed is requested.
• Request : 16#05 16#03 16#03 16#20 16#00 16#01 16#84 16#00
• Answer : 16#05 16#83 16#02 16#81 16#30
11.5.2. Outlet Pressure and Outlet Pressure Status
Please refer to the Address Mapping document, created by Speci5, to get the correct Register for the Outlet Pressure and its
meaning.
In this case f.i. the Outlet Pressure Status can be found in the first Analog Input Register and the Outlet Pressure Value can
be found in the second Analog Input Register.
• Request : 16#05 16#03 16#00 16#00 16#00 16#02 16#C5 16#8F
• Answer : 16#05 16#03 16#04 16#00 16#80 16#19 16#64 16#B4 16#60
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