CTI 2500 Installation and Operation Guide V2.8
71
Error
Cause
Correction
RLL Source Checksum
Error
(STW 1:16)
The RLL Source is invalid
Reload the Ladder program
Loops are Overrunning
(STW162:3)
Indicates that insufficient time is
allocated to process enabled
loops at the designated sample
rates.
See the Loop V flag and the LPET
variable to determine which loops are
overrunning. Increase the loop sample
time or increase the loop time slice.
Alarms are overrunning
(STW 162:4)
Indicates insufficient time is
allocated to process enabled
alarms at the designated
sample rates
See the Alarm V flag and the APET
variable to determine which alarms are
overrunning. Increase the alarm
sample time or increase the alarm time
slice.
Cyclic SF Programs are
overrunning
(STW 162:5)
Indicates insufficient time is
allocated to process cyclic SF
programs at the designated
cycle rates
See the PPET variable to determine
which loops are overrunning. Increase
the Cyclic SF time or increase the
Cyclic SF time slice.
Normal SF Queue is full
(STW 162:6)
Indicates that that you are
requesting Normal SF
execution faster than they can
be executed.
Increase the Normal SF time slice.
Priority SF Queue is full
(STW 162:7)
Indicates that that you are
requesting Priority SF execution
faster than they can be
executed.
Increase the Priority SF time slice.
Cyclic SF Queue is full.
(STW 162:8)
Indicates that that you are
requesting Priority SF execution
faster than they can be
executed.
Error occurred during
loop calculation
(STW 162:9)
Indicates that an SFP called
from a loop causes a loop
parameter to be set to an
invalid value.
Correct the Special Function Program
Error occurred during
alarm calculation
(STW 162:10)
Indicates that an SFP called
from an alarm causes an alarm
parameter to be set to an
invalid value.
Correct the Special Function Program
A Control Block is
disabled
(STW 162:11)
Reported when any loop, alarm
or scheduled SFP or SFS is
disabled.
Information only. Determine if a Control
Block is disabled in error.
Attempt to execute an
undefined SFP from RLL
(STW 162:12)
Reported when RLL attempts to
call a Special Function Program
that has not been created.
Correct RLL instruction or create a new
SFP.
Attempt to execute a
restricted SFP from RLL
(STW 162:13)
Reported when RLL attempts to
call a restricted SF program.
Correct the RLL instruction or change
the classification of the SF program.
RLL Subroutine nesting
level exceeded
(STW 200, error 4)
Indicates more than 32
subroutines are nested.
Correct the RLL
Table Overflow
(STW 200, error 5)
This error is reported when the
RLL instruction attempts to
access an invalid memory
location via a programmable
index.
STW 1:11 will be set. Correct RLL
Typically occurs with MOVE or LDA
instructions.
