Emerson MMI-20019043 Manuel D’Utilisation
Options for Frequency Output Process Variable
(continued)
Table 6-5:
Process variable
Label
Display
ProLink II
ProLink III
Field Communica-
tor
tor
Net mass flow
NET M
ED: Net Mass Flow
Rate
Rate
Net Mass Flow Rate
ED Net Mass flo
Net volume flow
NET V
ED: Net Vol Flow Rate
Net Volume Flow Rate
ED Net Vol flo
6.3.2
Configure Frequency Output Polarity
Display
OFF-LINE MAINT
> OFF-LINE CONFG > IO > CH B > SET FO > FO POLAR
ProLink II
ProLink
> Configuration > Frequency/Discrete Output > Frequency > Freq Output Polarity
ProLink III
Device Tools
> Configuration > I/O > Outputs > Frequency Output
Field Communicator Configure > Manual Setup > Inputs/Outputs > Frequency Output > FO Settings > FO Polarity
Overview
Frequency Output Polarity
controls how the output indicates the ON (active) state. The default
value, Active High, is appropriate for most applications. Active Low may be required by
applications that use low-frequency signals.
applications that use low-frequency signals.
Procedure
Set Frequency Output Polarity as desired.
The default setting is Active High.
Options for Frequency Output Polarity
Options for Frequency Output Polarity
Table 6-6:
Polarity
Reference voltage (OFF)
Pulse voltage (ON)
Active High
0
As determined by power sup-
ply, pull-up resistor, and load
(see the installation manual for
your transmitter)
ply, pull-up resistor, and load
(see the installation manual for
your transmitter)
Active Low
As determined by power sup-
ply, pull-up resistor, and load
(see the installation manual for
your transmitter)
ply, pull-up resistor, and load
(see the installation manual for
your transmitter)
0
Integrate the meter with the control system
110
Micro Motion
®
Model 2700 Transmitters with Analog Outputs