Rockwell Automation 1746-HSTP1 Stepper Controller Module/ User Manual - Manual (Page 58)

Publication 999-121 - December 1999
Configuration and Programming 5-23
bit 9 send next blend move data bit
bit 10 is reset if position is valid
bit 11 is set when input error exists
bit 12 is set when command error exists
bit 13 is set when configuration error exists
bit 14 is set when Module is OK
bit 15 mode flag:1 for configuration mode
0 for command mode