Rockwell Automation 1771-DA,D17716.5.13 U MNL 1771-DA ASCII I/O MODULE - Manual (Page 165)

Troubleshooting
Chapter 7
7Ć6
Table 6.D
Buffer Status Codes
Hex Binary Description
A01F
8011 10000000 00010001
Input buffer empty
A010 10100000 00010000
Input buffer contains data
A012 10100000 00010010
Input buffer 50% full
A016 10100000 00010110
Input buffer 75% full
10100000 00011110
Input buffer 100% full
Table 6.E
Fault Status Codes
Hex Binary Description
2491
0001 00000000 00000001 ASCII device neither connected nor
turned on
Channel active light not on
0010 00000000 00010000 Lost cable to ASCII device
Channel active light not on
2010 00100000 00010000 ASCII device lost power or turned
off
Loss of channel active was read
to the processor
00100100 10010001 Initializating Error
Input buffer empty
Output buffer empty
Power-up initialization
Invalid initialization data
Read data available
Channel active light is off