Time Integration
Transgression Supervision
Plus Retain
BLOCK
ACCTIME
RESET
IN
tAlarm
OVERFLOW
WARNING
ALARM
IEC12000195-3-en.vsd
Loop Delay
Loop Delay
tWarning
IEC12000195 V3 EN-US
Figure 525: TEIGAPC Simplified logic
TEIGAPC main functionalities
• integration of the elapsed time when IN has been high
• applicable to long time integration (≤999 999.9 seconds)
• output ACCTIME presents integrated value in seconds
• integrated value is retained in nonvolatile memory
• any retained value with a warning/alarm/overflow is used as initiation value for the
integration following by a restart
• RESET: Reset of the integration value. Consequently all other outputs are also reset
• unconditionally on the input IN value
• reset the value of the nonvolatile memory to zero
• BLOCK: Freeze the integration and block/reset the other outputs
• unconditionally on the signal value
• BLOCK request overrides RESET request
• Monitor and report the conditions of limit transgression
• overflow if output ACCTIME >999999.9 seconds
• alarm if ACCTIME >
tAlarm
• warning if ACCTIME >
tWarning
The ACCTIME output represents the integrated time in seconds while
tOverflow
,
tAlarm
and
tWarning
are the time limit parameters in seconds.
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.
The limit for the overflow supervision is fixed at 999999.9 seconds. The outputs freeze if an
overflow occurs.
1MRK 502 066-UUS B Section 15
Logic
1001
Technical manual
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