Yokogawa RotaMASS 3-Series - Manual (Page 162)

7. pArAMETEr dESCrIpTION
7-90 IM 01R04B04-00E-E 8th edition March 01, 2011 -00 All Rights Reserved. Copyright © 2003, Rota Yokogawa
How to set status, pulse or frequency output
(using the display keys, equivalent via HART)
Status
Basic Setup or detailed Setup
pulse/Status out 1
pulse/Stat 1 select
Select :
Status out
pulse or Frequency
Basic Setup or detailed Setup
pulse/Status out 1
pulse/Stat 1 select
Select :
pulse
pulse 1 select
F-Total mass → pulse
r-Total mass → pulse
F-Total volume → pulse
r-Total volume → pulse
F-Total net → pulse
r-Total net → pulse
Mass Flow → Frequency
volume Flow → Frequency
Net Flow → Frequency
density → Frequency
Temperature → Frequency
Concentration meas. → Frequency
Notice : By selecting a variable (mass or volume)
which can be totalized automatically the pulse
output is selected.
SO 1 function Select: No Function, Flow direction, Total limit switch, Mass flow
alm 1, Mass flow alm 2, Mass flow alm 1+2, vol flow alm 1, vol flow
alm 2, vol flow alm 1+2, density alm 1,density alm 2, density alm
1+2, Temp alm 1, Temp alm 2, Temp alm 1+2, Concentration meas
alm 1, Concentration meas alm 2, Concentration meas alm 1+2,
Net flow alm 1, Net flow alm 2, Net flow alm 1+2, Slug alarm, Empty
alarm, Corrosion alarm, All alarms, All errors, All alarms & errors
If Flow direction is selected, status output becomes active for forward
flow and not active for reverse flow, if parameter flow direction set to
forward. It is the other way round, if parameter flow direction is set to
reverse (see 7.17).
If Total limit switch is selected, status output becomes active, when
the totalizer reaches the value set to parameter Total limit switch (see
7.17).
If an alarm function is selected, status output becomes active, if the
concerning alarm occurs.
If
All alarms is selected, status output becomes active, if at least one
alarm occurs. The same applies for errors with the setting All errors.
For
All alarms & errors the status output becomes active, if at least
one alarm or one error occurs.
SO1 active mode Select: On Active, Off Active
The output levels depending on this parameter are shown on page 7-91.
If pulse is selected, under Basis Setup the
pulse unit and
pulse rate
have to be defined.
Under ´Detailed Setup´
pulse unit
pulse rate
pulse active mode and
pulse width
have to be defined.
If the pulse output is set under
Basic Setup, the
pulse width is the width set under detailed Setup
If the pulse width is not configured under detailed
Setup menu the pulse width will be set default to
1ms.
If ´frequency´ is selected the frequency generated
at URV (upper range value) has to be defined.
Default is URV = 1000Hz.
differences between pulse and Frequency
output
For pulse output the mass (or volume) is internally
totalized and if the increment is reached, one
pulse is sent.
For a frequency output the measured value is
calculated in actual frequency according to the
definition of the user (e.g. 10000 Hz = 54321 kg/h)
with 50% duty cycle.
Set as frequency output the pulse length is changing
with the change of the measured value.