5.1.5 Hold module
With the help of the hold module, it can be determined how to proceed in the event of invalid
measurement values. It ensures the last valid measurement value is retained until a new valid
measurement value is available or passes the error on after a certain number of invalid
measurements. The hold module is only available for universal inputs in "Freq", "PWM", "4-20mA",
"0-20mA", "0-2V" and "0-10V" channel modes.
The following table specifies the relevant parameters for the module:
Configuration section
Mode
Parameter
Explanation
Measurement channels -
>Config.
digital
---
---
digital LP
Cnt.Day
Cnt.Intervl.
Freq
Hold
Hold the last valid measurement value
for x measurement cycles
PWM
4-20mA
0-20mA
0-2V
0-10V
5.1.6 Alarm/trigger module
This module monitors the alarm limits and trigger levels and creates an entry in the alarm list if
necessary. The global triggers are also set (see "Alarm flags" on page 33 or "Trigger flags" on page
33). The alarm/trigger module is available for inputs (universal inputs and internal channels).
All of the parameters of the "Alarms" and "Trigger" tabs of the "Measurement channels" (see
"Measurement channels" on page 66) and "Internal channels" (see "Internal channels" on page
93) configuration sections are relevant to this module. Additionally, the parameters in the following
tables are also relevant:
Configuration section
Parameter
Explanation
Alarm settings
On alarm
A
The alarm is recorded in the alarm list.
On warning
A
The warning is recorded in the alarm list.
On fault alarm
A
The fault alarm is recorded in the alarm
list.
On fault warning A
The fault warning is recorded in the
alarm list.
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