12. Appendix C 
12.1. Fieldbus Status Display Indications 
R400  Experion PKS Series A Fieldbus Interface Module User's Guide  501 
July 2010  Honeywell 
Fieldbus Status Byte 
1-Char 
Suffix 
12-Char Independent 
Status Field 
Quality Substatus Limits   
GOOD 
(Cascade) 
Acknowledge 
Initialization 
(IA) 
High Limit     InitAck,H 
GOOD 
(Cascade) 
Acknowledge 
Initialization 
(IA) 
Constant    InitAck,C 
GOOD 
(Cascade) 
Request 
Initialization 
(IR) 
No Limits  R  ReqInit 
GOOD 
(Cascade) 
Request 
Initialization 
(IR) 
Low Limit  R  ReqInit,L 
GOOD 
(Cascade) 
Request 
Initialization 
(IR) 
High Limit  R  ReqInit,H 
GOOD 
(Cascade) 
Request 
Initialization 
(IR) 
Constant R  ReqInit,C 
GOOD 
(Cascade) 
Not Invited (NI)  No Limits  N  NotInvited 
GOOD 
(Cascade) 
Not Invited (NI)  Low Limit  N  NotInvited,L 
GOOD 
(Cascade) 
Not Invited (NI)  High Limit  N  NotInvited,H 
GOOD 
(Cascade) 
Not Invited (NI)  Constant N  NotInvited,C 
GOOD 
(Cascade) 
Not Selected 
(NS) 
No Limits  N  NotSelected 
GOOD 
(Cascade) 
Not Selected 
(NS) 
Low Limit  N  NotSelectd,L 
GOOD 
(Cascade) 
Not Selected 
(NS) 
High Limit  N  NotSelectd,H