Rockwell Automation Flex/WebPak 3000 DC Drive ControlNet, Network Communication Board, 915FK2101 - Manual (Page 33)

Programming the Drive 4-11
When this occurs, the MSG instruction’s ER coil is set and an error code (=11 or
0B hex) is written into an element in N20 that corresponds to the parameter that was
not accepted. For every element in N10:x there is a corresponding element in N20:x.
In response to the error coil, the PLC can read N20:x to find out which parameters
were not accepted. When parameters are written to, only the corresponding status
words are updated. If a valid value is written, the corresponding element in N20:x is
cleared (= 0).
See table 7.1 for the error codes that the drive will return to the PLC when a Typed
Read or Typed Write message fails.