Rockwell Automation PLC-5 Fieldbus Solutions for Integrated Architecture User Manual - Manual (Page 236)

Publication 1757-UM006A-EN-P - May 2002
C-2 Mode Change Conditions
Target mode is CAS and
cascade input status is not
Good - Initialization
Acknowledge and actual mode
attribute last execution was not
CAS N/A N/A N/A Actual mode
from last
execution or
AUTO N/A N/A
Status attribute of primary input
parameter is BAD or Uncertain
with option to treat Uncertain
as BAD and bypass not set OOS MAN MAN MAN MAN ROUT
Status attribute of back
calculation input parameter is
BAD OOS IMAN IMAN IMAN IMAN IMAN
Status attribute of back
calculation input parameter
Good - failsafe active, local
override, not invited, or
initialization request OOS IMAN IMAN IMAN IMAN IMAN
Tracking is enabled, track input
active and track override
manual is Enabled. OOS LO LO LO LO LO
Tracking is enabled, initiated
and track override manual is
Disabled. OOS MAN LO LO LO LO
Failsafe is active in an output
function block OOS LO LO LO LO LO
If target mode has changed
from OOS to another mode
since the block was last
executed. - MAN MAN MAN MAN MAN
Resource state as reflected in
the resource block parameter
resource state is Standby. OOS OOS OOS OOS OOS OOS
(1) Shed to the next lowest priority, non-remote mode which is permitted or, optionally, which is retained by the target mode
attribute and for which the required inputs are available.
Input Parameters Status
Attributes, Inputs Values and
Resource States Mode Parameter - Target Attribute Value
Out of Service
(OOS) Manual
(MAN) Automatic
(Auto) Cascade
(CAS) Remote
Cascade
(RCAS) Remote
Output
(ROUT)