Digital Inputs (Option) - Endress+Hauser eco-graph Mise En Service

Select the type of set point:
Type "Upper set point": Signal exceeds the set point.
"Lower set point": Signal undercuts the set point.
Set point Analogue alarm set point in the preset engineering units, e.g. in C, bar, ... .
The alarm condition is only cancelled when the signal has changed by the
Hysteresis preset value. Prevents hunting if the signal continuously changes around the
preset set point.
In order to be interpreted as an alarm the signal must exceed or undercut the
Time delay
alarm set point for the time set up.
Switches the respective relay when in alarm condition. The terminal numbers
Switched output can be fount in brackets. Please also take note of connection hints (see
"Safety hints/correct use" and "Connections/terminal layout").
If the alarm set point is active and the "LV messages" are set to
Event text LV (limit
"Display+acknowledge" this text is shown on screen (with date and time). Use
value) on
this function as e.g. a short form process message for the front end operator.
Event text LV (limit
The same as "Event text LV on", but on return to normal conditions.
value) off
"Display+acknowledge": Message must be acknowledged ("OK") by
operating a push button. This message consists of date, time and channel
LV (limit value) identifier with alarm set point value (alternatively the event text on/off if one
messages has been set up).
"Do not display": Alarm condition is indicated by a red background on the
measurement point identifier.
"No (Standard)": Plot continues using the preset feed rate (settings in "Basic
settings").
Feed rate change "When LV active": Plot using alarm feed rate so long as (minimum) a
measurement point is in an alarm condition (settings in "Basic settings").
Hint: Increased memory requirement !
• Setting up only required if the digital inputs are to be used.
Active input releases the selected function. The digital inputs are high active,
this means that the selected action takes place after connection of
Function
+12...+30 VDC.
See "Connections/terminal layout".
4. Setting up unit - SET UP
4.3.3 Digital inputs
(option "Digital I/O"):
51