
Using ProLink
®
Software with Micro Motion
®
Transmitters
117
Configure Menu: Transmitter Outputs
continued
Control output from RFT9739
Configure Menu:
Transmitter Outputs
Configure Menu:
Transmitter Information
Configure Menu: EventsView Menu: Status
Configure Menu:
Characterize
Configure Menu:
Transmitter Variables
10.6 Control output from
RFT9739
The RFT9739 control output produces a digital signal level, which has a
15 V OFF state and a 0 V ON state. The control output can indicate flow
direction, transmitter zeroing in progress, faults, event 1 or event 2.
Open the Control list box to select a control output variable.
Flow direction
If the control output indicates flow direction, the output is low (0 V) when
indicating reverse flow, and high (+15 V) when indicating forward flow. At
zero flow, the output remains low or high, depending on the flow
direction before the flow rate reached zero.
• When configured to indicate flow direction, the control output is
affected by the flow cutoff. If the flow signal drops below the flow
cutoff, the output remains low or high, depending on the flow
direction before the flow rate reached the cutoff.
• Configure the control output to indicate flow direction if the
transmitter connects to a Micro Motion peripheral device.
Zero in progress
If the control output indicates zero in progress, the output is low (0 V)
when zeroing is in progress, and high (+15 V) at all other times. On
field-mount transmitters, whether or not the control output is configured
to indicate transmitter zeroing in progress, the transmitter diagnostic
LED remains on during transmitter zeroing.
Faults
If the control output indicates faults, the output is low (0 V) when
indicating a fault condition, and high (+15 V) when indicating normal
operation. Whether or not the control output is set to indicate faults, the
transmitter diagnostic LED blinks 4 times per second to indicate a fault
condition. For a rack-mount transmitter, “ERR” flashes on display.
Event 1 and event 2
Assigning event 1 or event 2 to the control output requires output
configuration and event parameters configuration. To assign an event to
the control output:
1. Open the Configure menu, then choose Events.
2. Configure event parameters as described in
Section 12.2
, page 127.
Comentarios a estos manuales