Emerson Model 1700 Manuale Utente
Options for Discrete Output Source
(continued)
Table 6-8:
Option
Label
Condition
Discrete
output volt-
age
output volt-
age
Display
(standard)
(standard)
Chinese-lan-
guage dis-
play
guage dis-
play
ProLink II
ProLink III
Field Com-
municator
municator
Flow Switch
FL SW
Flow Rate
Switch
Switch
Flow Switch
Indication
Indication
Flow Switch In-
dicator
dicator
Flow Switch
ON
Site-specific
Forward/Re-
verse Indica-
tion
verse Indica-
tion
0 V
Flow Direction
FLDIR
Flow Direc-
tion
tion
Forward/Re-
verse Indica-
tion
verse Indica-
tion
Forward Re-
verse Indicator
verse Indicator
Forward/Re-
verse
verse
Forward flow 0 V
Fault Condi-
tion Indica-
tion
tion Indica-
tion
Site-specific
Calibration in
Progress
Progress
ZERO
Sensor Zero
Calibration
in Progress
in Progress
Calibration in
Progress
Progress
Calibration
in Progress
in Progress
ON
Site-specific
OFF
0 V
Fault
FAULT
Fault Value
Fault Condi-
tion Indica-
tion
tion Indica-
tion
Fault Indication
Fault
ON
Site-specific
OFF
0 V
Configure Flow Switch parameters
Display (standard)
OFF-LINE MAINT
> OFF-LINE CONFG > IO > CH B > SET DO > CONFIG FL SW
Chinese-language
display
display
Offline Maintain
> Configuration > Input/Output > Channel B Setup > Discrete Output > Flow Rate
Switch
ProLink II
•
ProLink
> Configuration > Flow > Flow Switch Variable
•
ProLink
> Configuration > Flow > Flow Switch Setpoint
•
ProLink
> Configuration > Flow > Flow Switch Hysteresis
ProLink III
Device Tools
> Configuration > I/O > Outputs > Discrete Output
Field Communicator
•
Configure
> Manual Setup > Inputs/Outputs > Discrete Output > Flow Switch Source
•
Configure
> Manual Setup > Inputs/Outputs > Discrete Output > Flow Switch Setpoint
•
Configure
> Manual Setup > Inputs/Outputs > Discrete Output > Hysteresis
Overview
Flow Switch
is used to indicate that the flow rate (measured by the configured flow variable)
has moved past the configured setpoint, in either direction. The flow switch is
implemented with a user-configurable hysteresis.
implemented with a user-configurable hysteresis.
Procedure
1.
Set Discrete Output Source to Flow Switch, if you have not already done so.
2.
Set Flow Switch Variable to the flow variable that you want to use to control the flow
switch.
switch.
Integrate the meter with the control system
Configuration and Use Manual
95