Rockwell Automation 1747-SCNR ControlNet Scanner Module Reference Manual - Manual (Page 41)

Publication 1747-RM623D-EN-P - June 2006
Work with the ControlNet Explicit Message Instruction 4-7
Scanner Status, Error, and Error Description on the General Tab
The Scanner Code displays the explicit message status returned by the
scanner. A scanner code of 0 means no errors. See the CEM
Instruction Scanner Codes table for a list of other valid scanner codes.
CEM Instruction Scanner Codes
Scanner Code Description of Scanner Status
201H Invalid command data size
202H Internal fault detected
204H Invalid service code
205H Invalid IOI size
206H Invalid CIP request block contents
207H CIP message request timeout
208H CIP timeout value too small