Allen-Bradley 1756-CFM, User Manual

Page: 115 / 150

Rockwell Automation Publication 1756-UM010C-EN-P - June 2021 115
Appendix B Software Configuration Tags
Output Tags
You must use the Output tags to change module configuration during operation.
Table 16 lists and defines Output tags.
Table 16 - Configurable Flowmeter Module Output Tags
Name Style Data Type Definition
O.Total[0].AlarmEnables Binary SINT
O.Total[0].Overrange Decimal BOOL
Enables the Overrange alarm on output connected to channel 0. When
the Frequency Period exceeds 100 KHz, this alarm is set.
0 = No Alarm
1 = Alarm Enabled
O.Total[0].Overflow Decimal BOOL
Enables the Overflow alarm on output connected to channel 0. When the
Total Counts exceeds the Roll Over value, this alarm is set.
0 = No Alarm
1 = Alarm Enabled
O.Total[0].Overspeed Decimal BOOL
Enables the Overspeed alarm on output connected to channel 0. When
the Speed exceeds the Highest Allowed Frequency value, this alarm is
set.
0 = No Alarm
1 = Alarm Enabled
O.Total[0].Acceleration Decimal BOOL
Enables the Acceleration alarm on output connected to channel 0. When
the absolute acceleration exceeds the Acceleration Alarm value, this
alarm is set.
0 = No Alarm
1 = Alarm Enabled
O.Total[0].Control Binary SINT
O.Total[0].Reset Decimal BOOL
Rising edge resets the count
We recommend that you latch the <tagname>O.ResetCounter.(0-1) bit
and unlatch that with the <tagname>I.WasReset.(0-1) bit.
• When the <tagname>I.WasReset.(0-1) bit will remain on until the next
time, the <tagname>O.ResetCounter.(0-1) bit is turned on.
• When the <tagname>O.ResetCounter.(0-1) bit goes high, the
<tagname>I.WasReset.(0-1) goes low until the
<tagname>I.StoredValue.(0-1) equals 0.
At that time, <tagname>I.WasReset.(0-1) will go high again. The toggle
from On to Off is done quickly and you may not see it in the controller.
O.Total[0].Load Decimal BOOL Reserved
O.Total[0].ProverEnable Decimal BOOL
Enables the prover operation on output connected to channel 0. Once this
bit is enabled, the module waits for output Z
0
to energize before
beginning prover operations.
0 = Prover operation is disabled
1 = Prover operation is enabled
O.Total[0].FillEnable Decimal BOOL
Enables the filling operation on output connected to channel 0.
0 = Fill operation is disabled
1 = Fill operation is enabled.
O.Total[0].FillStart Decimal BOOL
Begins filling operation when Fill Enable is enabled on output connected
to channel 0.
0 = Do not begin filling
1 = Begin filling
O.Total[0].FillHold Decimal BOOL
Holds/pauses filling operation on output connected to channel 0
0 = Continue filling operation
1 = Hold/pause filling operation
O.Total[0].RollOverValue Decimal DINT
Sets the user-defined rollover value on output connected to channel 0.
Range of 0 - 2,147,483,647
O.Total[0].CombinedCorrectionFactor Float REAL
Unitless factor that is multiplied by Gross Rate with results shown as
NetRate of channel 0.
This value must be set to 1.0 when not used or gross rate will be 0.
Calculation Type must be set to 0 to use this factor.
O.Total[0].BaseTemperature Float REAL Temperature in °F of output connected to channel 0
O.Total[0].FlowingTemperature Float REAL Temperature in °F of output connected to channel 0
O.Total[0].AtmosphericPressure Float REAL Pressure in psia of output connected to channel 0