Rockwell Automation 1771-PD PID MODULE (+DU) - Manual (Page 233)

Summary Word and Bit Tables
Appendix D
DĆ12
Table D.G
Alarm Word W58
Bits Title Status
B17,B16 Block identifier will be 0
B15 Dynamic block error 0=no error
1=programming error
B14 Loop block error 0=no error
1=programming error
B13 Power-up 0=Dynamic block is received.
1=Memory is clear, ready for LE sequence.
B12 Ready 0=normal
1=Load portion of LE sequence is complete, ready for enter portion.
B11 Loss of +15V DC 0=normal
1=loss of +15V DC
B10 Soft fault mode 0=normal mode
1=soft fault mode
B07 thru
B00
Future use will be 0
Table D.H
Status Monitor Byte
Bit No. Title Status
B07,B06 Precondition 0=Byte is valid.
1=invalid byte
B05 Precondition 0=Byte is invalid
1=valid byte
B04 Alarm 0=no alarm condition
1=An alarm condition is reported in loop status word W61(W68).
B03 Power-up 0=Dynamic block is received.
1=Memory is clear, ready for LE sequence. (SMB B03 mirrors the status of W58
B13).
B02
Loss of input 0=Signal is present
1=loss of analog input or tieback input (under most circumstances)
B01 Loss of +15V DC 0=normal
1=loss of +15V DC (SMB B01 mirrors the status of W58 B11).
B00 Soft fault mode 0=normal mode
1=soft fault mode (SMB B00 mirrors the status of W58 B10).