tAlarm
and
tWarning
are user settable limits. They are also independent, that is, there is
no check if
tAlarm
>
tWarning
.
tAlarm
and
tWarning
are possible to be defined with a resolution of 10 ms, depending on
the level of the defined values for the parameters.
tOverflow
is for the overflow supervision with a default value
tOverflow
=
999 999.9
seconds. The outputs freeze if an overflow occurs.
13.9.6.1
Operation Accuracy
The accuracy of TEIGGIO depends on essentially three factors
•
task cycle time
•
the pulse length
•
the number of pulses, that is the number of rising and falling flank pairs
In principle, a shorter task cycle time, longer integrated time length or more pulses may
lead to reduced accuracy.
13.9.6.2
Memory storage
The value of the integrated elapsed time is retained in a non-volatile memory, only if any
warning, alarm or/and overflow occurs. Consequently there is a risk of data loss in the
integrated time at a power failure.
13.9.7
Technical data
Table 344:
TEIGGIO Technical data
Function
Cycle time (ms)
Range or value
Accuracy
Elapsed time integration
5
0 ~ 999999.9 s
±0.05% or ±0.01 s
20
0 ~ 999999.9 s
±0.05% or ±0.04 s
100
0 ~ 999999.9 s
±0.05% or ±0.2 s
1MRK 502 048-UUS A
Section 13
Logic
505
Technical manual
