Rockwell Automation 281A ArmorStart with ArmorPoint Backplane - Getting Started - Manual (Page 21)

Publication 280A-QS001C-EN-P - July 2006
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Interpreting the Error Report
If an error occurs during the operation of the ladder logic, either the
Write_All_System_Error_Flag or Read_All_System_Error_Flag bits will
energize depending on which function was being triggered. Information will
be logged inside the data structure Error_Report, that will aid in
troubleshooting the problem. The format of this structure is shown below.
Figure 19 Error Report
The first element of this structure is .Local_Error and will contain a
number corresponding to an error interpretation. The error numbers are
described in the next table.
Table 3 Error Definitions
Error
No.
Error Description
0 Success. Function completed successfully.
1 Read Number Parameter Error. Num_Devices element in the configuration is either 0 or
greater than the Max_Devices element.
2 Read Message Block Error. The Message block doing the data reads returned back an
error. Look at the Msg_Error and Msg_Ext_Error fields for the errors reported by the
message.
3 Write Data out of Limits. The value of the data to be written is either less than the
Min_value or greater than the Max_value.
4 Write Message Block Error. The Message block doing the data writes returned back an
error. Look at the Msg_Error and Msg_Ext_Error fields for the errors reported by the
message.
5 Write Disallowed. The System Wide Write attempted without a successful System Wide
Read done first.
6 Data Write Error. The data read back after a parameter write, does not match.
7 Number of Parameters Error. The number of parameters read from an ArmorStart is
greater than the Max_Devices element in the structure.