Allen-Bradley MicroLogix 1200 Reference Manual page 306

21-6 Communications Instructions
Publication 1762-RM001C-EN-P
The Status Bits, Sub-Element 17, of the MSG File Element are defined
below.
Message File Sub-Element 17 - Status bits
Bit Address Description
15 Reserved
14 MG11:0.0/ST Start:
1 = MSG transmitted and
acknowledged by target device
0 = MSG has not been received by
target
13 MG11:0.0/DN Done
1 = MSG completed successfully
0 = MSG not complete
12 MG11:0.0/ER Error
1 = error detected
0 = no error detected
11 Reserved
10 MG11:0.0/EW Enabled and Waiting:
1=MSG Enabled and Waiting
0=MSG not Enabled and Waiting
1 to Reserved
9
0 MG11:0.0/R Range 1=Local, 0=Remote
Parameter Size User
Program
Access
N bit read only
N bit read only
N bit read only
N bit read only
N bit read only
N bit read only
N bit read only
Y bit read only