CiDRA Passive Sonar Transmitters User Manual

Page 21

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Table 5 Modbus Holding Registers (continued)

Address Size

Type Value

Description

Values

1009 1

Char

SOS_LIQUID_SPEC
GRAV_SEL

Selects use of pre-defined SOS Specific Gravity or a
custom value entered in 'SOS Specific Gravity'.

0 = 0.997 (Water), 1 = Custom

1010 1

Char

SOS_LIQUID_SOS_
SEL

Selects use of pre-defined SOS Liquid Sound Speed or a
custom value* entered in 'SOS Liquid Sound Speed'

0 = 4910.4 ft/s (Water), 1 =
Custom

1011 1

Char

TLF_TEMP_INPUT_
SEL

Selects the source of the temperature used in GVF
calculations. 'Fixed' uses 'SOS Process Temperature',
'Sensor 1' uses the 4-20mA input channel 1, 'Sensor 2'
uses 4-20mA input channel 2, Protocol uses values
written to register 5003.

0 = Fixed, 1 = Sensor 1, 2 =
Sensor 2, 3 = Protocol

1012 1

Char

TLF_PRESS_INPUT
_SEL

Selects the source of the pressure used in GVF
calculations. 'Fixed' uses 'SOS Process Pressure',
'Sensor 1' uses the 4-20mA input channel 1, 'Sensor 2'
uses 4-20mA input channel 2, Protocol uses values
written to register 5001.

0 = Fixed, 1 = Sensor 1, 2 =
Sensor 2, 3 = Protocol

1013 1

Char

SOS_TEMP_UNITS

Selects units used for input of 'SOS Process
Temperature' degrees.

0 = C, 1 = F

1014 1

Char

SOS_PRESS_UNIT
S

Selects units used for input of 'SOS Process Pressure'.

0 = PSIg, 1 = kPAg, 2 = BARg

1015 1

Char

ALTITUDE_UNITS

Selects units used for entry of 'Altitude'.

0 = ft, 1 = m

1016 1

Char

DISP_LINE1

Selects measured value to be displayed on line 1 of the
LCD.

0 = Flow Rate, 1 = Flow Rate%, 2
= Totalizer, 3 = SOS, 4 = GVF, 5 =
Blank, 6 = TLF

1017 1

Char

DISP_LINE2

Selects measured value to be displayed on line 2 of the
LCD.

0 = Flow Rate, 1 = Flow Rate%, 2
= Totalizer, 3 = SOS, 4 = GVF, 5 =
Blank, 6 = TLF

1018

1

Char

VOL_UNITS

Selects units used to display and log flow volume.

0 = m^3, 1 = l, 2 = gal, 3 = m, 4 =
ft, 5 = iga, 6 = ft^3, 7 = user

1019

1

Char

TIME_UNITS

Selects units used to display and log flow time.

0 = d, 1 = h, 2 = m, 3 = s, 4 = user

1020

1

Char

CUST_VOL_UNITS

Selects volume units used in calculation of a custom unit.

0 = m^3, 1 = l, 2 = gal, 3 = m, 4 =
ft, 5 = iga, 6 = ft^3

1021

1

Char

CUST_TIME_UNITS

Selects time units used in calculation of a custom unit.

0 = d, 1 = h, 2 = m, 3 = s

1022 3

Char

CUST_VOL_LABEL

Three character string used for display and logging of a
custom flow volume unit.

Any Alpha

20959-01 Rev 02

Page 3-6

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