Endress+Hauser RMS 621 - Page 44

6 Commissioning RMS 621
44 Endress+Hauser
Setup → Alarm set points
Relays or passive digital outputs (open collector) are available for the alarm set point function in the
unit. Dependent on the model between 1 and 13 alarm set points are possible.
Sub menu Setup (all parameters) Æ Alarm set points.
Signal source Density 1
Enthalpy 1
Flow 1
Mass flow 1
Pressure 1
Temperature 1
Heat flow 1
Please select
Sets which calcualted or measured values are to be transmitted
to the analogue output. The number of signal sources is
dependent on the number of applications set up and inputs.
Current 4 to 20 mA, 0 to 20 mA Sets the operating mode of the analogue output.
Start value -999999 to 999999
0.0
Smallest output value of the analogue output.
End value -999999 to 999999
100
Largest output value of the analogue output.
Signal damping (time
constant)
0 to 99 s
0 s
Time constant of a 1st order low pass filter for the input signal.
This function is used to avoid display fluctuations on high
fluctuating input signals. (Only for 0/4 and 20mA signals).
Fault conditioning Minimum
Maximum
value
Last measured value
Defines the behaviour of the output in a fault condition e.g. if
the measurement of a sensor fails.
Value -999999 to 999999
0.0
Fixed value that is to be transmitted to the analogue output in
a fault condition.
!
Note!
Only valid for the fault conditioning set-up; value selectable.
Simulation 0 - 3,6 - 4 - 10 - 12 - 20 -
21
off
The function of the current output is simulated, when the set-
up is not equal to "off". The simulation ends once this address
has been left.
Function (Menu
address)
Parameter set-up Description
Identifier Alarm set point 1 to 13 For a better overview the alarm set points can be allocated an
identification name. (max. 12 characters)
Transmit to Display
Relay
Digital
Please select
Allocation where the alarm set point is to be transmitted
(passive digital output only available on extension cards).
Terminal A-52, B-142, B-152,
C-142, C-152, D-142, D-
152
B-135, B-137, C-135, C-
137, D-135, D-137
Not used
Sets the terminals for the selected alarm set point.
Relay: Terminals X-14X, X-15X
Digital: Terminals X-13X
Function (Menu
address)
Parameter set-up Description