Badger Meter Dynasonics TFX-5000 User manual

Transit Time Ultrasonic Flow Meters
TFX-5000 Meter Modbus RTU Protocol
TTM-UM-03073-EN-01 (August 2019) User Manual

CONTENTS
Supported Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Communication Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Registers/Starting Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Function Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Word Order/Endian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Modbus Registers and Coils. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Flow Meter Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Energy Meter Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Enumerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Warning and Alarm Message Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Failure Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Check Function Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Out-of-Specication Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Informational Events Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Transit Time Ultrasonic Flow Meters, TFX-5000 Meter Modbus RTU Protocol
Page ii August 2019TTM-UM-03073-EN-01

SUPPORTED FEATURES
TFX-5000 meters include an EIA-485 port that is selectable for Modbus RTU or BACnet MS/TP protocol. The meter can be
wired on a single daisy chain network and be queried for flow rate and totalizer readings along with diagnostic and
other information.
For further information on the proper installation of the transmitter, see the TFX-5000 user manual.
EIA-485 port on the TFX-5000 automatically detects which lines are A and B for transmitting and receiving. The hardware
automatically corrects for the RS485 negative and positive connections being swapped.
WIRING
RS485 Output
The RS485 feature allows up to 126 transmitters to be placed on a single three-wire cable up to 4000 feet. All transmitters are
assigned a unique numeric address that allows all of the transmitters on the cable network to be independently accessed.
Either Modbus RTU or BACnet MS/TP protocol is used to interrogate the transmitters.
Flow rate and total can be monitored over the digital communications bus.
When a USB programming cable is connected, the RS485 and frequency outputs are disabled.
TB700
External Equipment
3
4
RS485 +
RS485 −
A B
60.4 Ohms 60.4 Ohms
Terminator Resistors
(Enabled through Parameter Setting)
Figure 1: Typical RS485 interface
COMMUNICATION SETTINGS
To set up the meter for Modbus RTU:
1. Go to Main Menu > System Setup > Communications menu.
2. Select Modbus RTU.
3. Set the address (1…127).
4. Check that the baud rate, parity, stop bits and word order (endian) match the master device.
5. Enable the terminating resistor if the meter is the last device in the network. TFX-5000 meters have a built-in resistor that
can be selected through the communication setting.
6. Select the master timeout. TFX-5000 meters can display a warning when the master device does not send a packet within
the specified time. Setting the master timeout to 0 disables the warning.
7. Select which parameters the master device can write to:
a. All coil outputs and read/write holding registers
b. Coil outputs only (resets)
c. None (read only).
Supported Features
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REGISTERS/STARTING ADDRESS
It is important to know whether the master device uses starting addresses or registers/coils as these numbers are offset by 1.
For example, holding output coil 00001 is starting address 00 (hex).
Function Codes
TFX-5000 transmitters support the following function codes, as applicable:
01 (0x01 hex) Read Coils
03 (0x03 hex) Read Holding Registers
04 (0x04 hex) Read Input Registers
05 (0x05 hex) Write Single Coil
06 (0x06 hex) Write Single Register
16 (0x10 hex) Write Multiple Registers
Word Order/Endian
Each Modbus holding register represents a 16-bit integer value (2 bytes). The official Modbus standard defines Modbus as a
‘big-endian’protocol where the most significant byte of a 16-bit value is sent before the least significant byte. For example,
the 16-bit hex value of‘1234’ is transferred as‘12’‘34’.
Beyond 16-bit values, the protocol itself does not specify how 32-bit (or larger) numbers that span over multiple registers
should be handled. It is very common to transfer 32-bit values as pairs of two consecutive 16-bit registers in little-endian word
order. For example, the 32-bit hex value of ‘12345678’ is transferred as‘56’‘78’‘12’‘34’. The register bytes are still sent in big-
endian order per the Modbus protocol, but the 16-bit registers are sent in little-endian order. Alternatively, some devices store
and transfer the Modbus registers in big-endian word order. For example, the 32-bit hex value of ‘12345678’ is transferred as
‘12’‘34’‘56’‘78’.
As long as the transferring and receiving device transmit the data in the same manner, it does not matter in which order the
words are sent. The word order is selectable in the TFX-5000 meter. This option is useful in applications where the Modbus
master cannot be configured for endianness.
Registers/Starting Address
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MODBUS REGISTERS AND COILS
Flow Meter Registers
Descriptive Name Description
Network
Access
Integer and
Long Integer
Single
Precision
32-bit
floating point
Double
Precision
64-bit
floating point
READINGS
Flow Rate on Screen Flow rate displayed on home screen. Unit is based on selection for
home screen. R 40001-40002 40601-40602 41201-41204
Velocity on Screen Fluid velocity displayed on home screen. Unit is based on selection for
home screen. R 40003-40004 40603-40604 41205-41208
Delta Time Filtered (ns) Time of flight difference between upstream and downstream used to
calculated the flow rate. Units are nanoseconds. R 40005-40006 40605-40606 41209-41212
Flow Rate (gal/min) Flow rate in gallons/minute. R 40201-40202 40801-40802 41401-41404
Velocity (ft/sec) Fluid velocity in feet/second. R 40203-40204 40803-40804 41405-41408
Flow Rate (l/min) Flow rate in liters/minute. R 40401-40402 41001-41002 41601-41604
Velocity (m/sec) Fluid velocity in meters/second. R 40403-40404 41003-41004 41605-41608
TOTALS
Net Flow Totalizer
(home screen units)
Total volume as forward flow minus reverse flow. A negative total results
when reverse flow is greater than forward flow. Unit is based on selection for
home screen.
R 42001-42002 42301-42302 42601-42604
Positive Flow Totalizer
(home screen units)
Total volume of flow in forward direction. Reverse flow is not accounted for
in the total. Unit is based on selection for home screen. R 42003-42004 42303-42304 42605-42608
Negative Flow Totalizer
(home screen units)
Total volume of flow in reverse direction. Forward flow is not accounted for
in the total. Unit is based on selection for home screen. R 42005-42006 42305-42306 42609-42612
Gross Flow Totalizer
(home screen units)
Total volume of forward and reverse flow. Unit is based on selection for
home screen. R 42007-42008 42307-42308 42613-42615
Flow Totalizer
Overflow Counter
(Net)
Number of times the net flow total overruns. R 42009-42010 — —
Flow Totalizer
Overflow Counter
(Positive)
Number of times the positive flow total overruns. R 42011-42012 — —
Flow Totalizer
Overflow Counter
(Negative)
Number of times the negative flow total overruns. R 42013-42014 — —
Flow Totalizer
Overflow Counter
(Gross)
Number of times the gross flow total overruns. R 42015-42016 — —
Net Flow Totalizer (gal) Total volume as forward flow minus reverse flow. A negative total results
when reverse flow is greater than forward flow. R 42101-42102 42401-42402 42701-42704
Positive Flow Totalizer
(gal)
Total volume of flow in forward direction. Reverse flow is not accounted for
in the total. R 42103-42104 42403-42404 42705-42708
Negative Flow Totalizer
(gal)
Total volume of flow in reverse direction. Forward flow is not accounted for
in the total. R 42105-42106 42405-42406 42709-42712
Gross Flow Totalizer
(gal) Total volume of forward and reverse flow. R 42107-42108 42407-42408 42713-42716
Totalizer Overflow
Counter (Net) Number of times the net flow total overruns. R 42109-42110 — —
Totalizer Overflow
Counter (Positive) Number of times the positive flow total overruns. R 42111-42112 — —
Totalizer Overflow
Counter (Negative) Number of times the negative flow total overruns. R 42113-42114 — —
Totalizer Overflow
Counter (Gross) Number of times the gross flow total overruns. R 42115-42116 — —
Net Flow Totalizer
(liters)
Total volume as forward flow minus reverse flow. A negative total results
when reverse flow is greater than forward flow. R 42201-42202 42501-42502 42801-42804
Positive Flow Totalizer
(liters)
Total volume of flow in forward direction. Reverse flow is not accounted for
in the total. R 42203-42204 42503-42504 42805-42808
Negative Flow Totalizer
(liters)
Total volume of flow in reverse direction. Forward flow is not accounted for
in the total. R 42205-42206 42505-42506 42809-42812
Gross Flow Totalizer
(liters) Total volume of forward and reverse flow. R 42207-42208 42507-42508 42813-42816
Modbus Registers and Coils
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Descriptive Name Description
Network
Access
Integer and
Long Integer
Single
Precision
32-bit
floating point
Double
Precision
64-bit
floating point
TOTALS (continued)
Totalizer Overflow
Counter (Net) Number of times the net flow total overruns. R 42209-42210 — —
Totalizer Overflow
Counter (Positive) Number of times the positive flow total overruns. R 42211-42212 — —
Totalizer Overflow
Counter (Negative) Number of times the negative flow total overruns. R 42213-42214 — —
Totalizer Overflow
Counter (Gross) Number of times the gross flow total overruns. R 42215-42216 — —
HOME SCREEN UNITS
Flow Rate Units Flow rate units on home screen as defined in parameter settings. R 43001 — —
Flow Rate Decimal Number of digits after the decimal of flow rate on home screen. Use with
long integer format. R 43002 — —
Velocity Units Velocity units on home screen as defined in parameter settings. R 43003 — —
Flow Total Units Total volume units on home screen as defined in parameter settings. R 43004 — —
Flow Total Decimal Number of digits after the decimal of flow total on home screen. Use with
long integer format. R 43005 — —
SETUP
Low Flow Cutoff Setting to display flow rate as zero & stop totalizing when flow rate goes
below this value. R/W — 44001-44002 —
Low Signal Cutoff Setting to display flow rate as zero & stop totalizing when signal strength
goes below this value and trigger a low signal error message. R/W 44003 — —
High Signal Cutoff Setting to display flow rate as zero & stop totalizing when signal strength
goes above this value and trigger an oversaturate error message. R/W 44004 — —
DIAGNOSTICS ALARMS
Active Failed
Conditions Message code corresponds to the bit (for example, F02 is bit 02). R 45001-45007 — —
Active Out of
Specification
Conditions
Message code corresponds to the bit (for example, S02 is bit 02). R 45008-45014 — —
Active Check Function
Conditions Message code corresponds to the bit (for example, C02 is bit 02). R 45015-45021 — —
Alarm History Individual registers per buffer. R
45033-45288
Array of
100 single
registers
— —
DIAGNOSTICS
Signal Strength Indicates the strength of the ultrasonic signal. R 45501 — —
Current Output #1
Source Parameter assigned to Current Output #1. 1R 45601 — —
Current Output #1 Current in mA of Current Output #1. R — 45602-45603 —
Output #1 Mode Operation mode of Digital Output #1. 1R 45701 — —
Output #1 Source Parameter assigned to Digital Output #1. 1R 45702 — —
Output #1 Status Status of Digital Output #1. 1R 45703 — —
Output #2 Mode Operation mode of Digital Output #2. 1R 45704 — —
Output #2 Source Parameter assigned to Digital Output #2. 1R 45705 — —
Output #2 Status Status of Digital Output #2. 1R 45706 — —
Aux Output Mode Operation mode of Auxiliary Output. 1, 2 R 45801 — —
Aux Output Source Parameter assigned to Auxiliary Output. 1, 2 R 45802 — —
Aux Output Status Status of Digital Auxiliary. 1, 2 R 45803 — —
Input Mode Operation mode of Digital Input. 1R 45901 — —
Input Active State Indicates the voltage level to make the input active. 1R 45902 — —
Input Status Status of Digital Input. 1R 45903 — —
1See “Enumerations” on page 12.
2Use only if auxiliary output card is installed.
Modbus Registers and Coils
Page 6 August 2019TTM-UM-03073-EN-01

Descriptive Name Description
Network
Access
Integer and
Long Integer
Single
Precision
32-bit
floating point
Double
Precision
64-bit
floating point
COMMUNICATION
Modbus Access Modbus Access Type. R 46001 — —
Modbus Active
Timeout
Defines the maximum time that master will poll the meter. If the meter
does not see any communication from the master in the time specified, a
message will trigger.
R/W 46002 — —
Termination Resistor Selection to enable or disable the internal termination resistor (RS485
devices only). R/W 46003 — —
IDENTIFICATION
Tag Identification String setting to identify the meter. R 47001 — —
Part Number Part number of the meter. (String) R 47065 — —
Serial Number Serial number of the meter. (String) R 47129 — —
Firmware Version Firmware version of the meter. (String) R 47193 — —
Calibration Date Date the meter was last calibrated at factory. (String) R 47257 — —
Date Code Date the meter was manufactured. (String) R 47321 — —
Coils
Descriptive Name Description
Network
Access
Coil
ACTIONS
Reset Totalizers Resets all flow totals in meter to zero. 1W 00001
Unlatch Alarms Unlatches outputs in alarm latched state. 1W 00002
Clear Alarm History Clears all errors, alarms and event codes from alarm history. 1W 00003
Reboot Device Reboots the meter. 1W 00004
1See “Enumerations” on page 12.
Modbus Registers and Coils
Page 7August 2019 TTM-UM-03073-EN-01

Energy Meter Registers
Descriptive Name Description
Network
Access
Integer and
Long Integer
Single
Precision
32-bit
floating point
Double
Precision
64-bit
floating point
READINGS
Flow Rate on Screen Flow rate displayed on home screen. Unit is based on selection for
home screen. R 40001-40002 40601-40602 41201-41204
Velocity on Screen Fluid velocity displayed on home screen. Unit is based on selection for
home screen. R 40003-40004 40603-40604 41205-41208
Delta Time Filtered (ns) Time of flight difference between upstream and downstream used to
calculated the flow rate. Units are nanoseconds. R 40005-40006 40605-40608 41209-41216
Energy/BTU Rate Energy rate displayed on home screen. Unit is based on selection for
home screen. R 40009-40010 40609-40610 41217-41218
Temperature #1 Temperature #1 displayed on home screen. Unit is based on selection for
home screen. R 40011-40012 40611-40612 —
Temperature #2 Temperature #2 displayed on home screen. Unit is based on selection for
home screen. R 40013-40014 40613-40614 —
Delta Temperature Delta temperature displayed on home screen. Order of operation and unit is
based on selection for home screen. R 40015-40016 40615-40616 —
Flow Rate (gal/min) Flow rate in gallons/minute. R 40201-40202 40801-40802 41401-41404
Velocity (ft/sec) Fluid velocity in feet/second. R 40203-40204 40803-40804 41405-41408
Energy Rate (kBTU) Energy rate in kBTU. R 40205-40306 40805-40806 41409-41412
Flow Rate (l/min) Flow rate in liters/minute. R 40401-40402 41001-41002 41601-41604
Velocity (m/sec) Fluid velocity in meters/second. R 40403-40404 41003-41004 41605-41608
Energy Rate (kWH) Energy rate in kWH. R 40405-40406 41005-41006 41609-41612
TOTALS
Net Flow Totalizer
(home screen units)
Total volume as forward flow minus reverse flow. A negative total results
when reverse flow is greater than forward flow. Unit is based on selection for
home screen.
R 42001-42002 42301-42302 42601-42604
Positive Flow Totalizer
(home screen units)
Total volume of flow in forward direction. Reverse flow is not accounted for
in the total. Unit is based on selection for home screen. R 42003-42004 42303-42304 42605-42608
Negative Flow Totalizer
(home screen units)
Total volume of flow in reverse direction. Forward flow is not accounted for
in the total. Unit is based on selection for home screen. R 42005-42006 42305-42306 42609-42612
Gross Flow Totalizer
(home screen units)
Total volume of forward and reverse flow. Unit is based on selection for
home screen. R 42007-42008 42307-42308 42613-42616
Flow Totalizer
Overflow Counter
(Net)
Number of times the net flow total overruns. R 42009-42010 — —
Flow Totalizer
Overflow Counter
(Positive)
Number of times the positive flow total overruns. R 42011-42012 — —
Flow Totalizer
Overflow Counter
(Negative)
Number of times the negative flow total overruns. R 42013-42014 — —
Flow Totalizer
Overflow Counter
(Gross)
Number of times the gross flow total overruns. R 42015-42016 — —
Energy/BTU Net Total
(home screen units)
Total energy as positive energy rate minus negative energy rate. A negative
total results when reverse flow is greater than positive energy rate. Unit is
based on selection for home screen.
R 42017-42018 42317-42318 42633-42636
Energy/BTU Positive
Total (home screen
units)
Total energy of flow in forward direction, such as heating. Negative energy
rate is not accounted for in the total. Unit is based on selection for
home screen.
R 42019-42020 42319-42320 42637-42640
Energy/BTU Negative
Total (home screen
units)
Total energy of flow in reverse direction, such as cooling. Positive energy rate
is not accounted for in the total. Unit is based on selection for home screen. R 42021-42022 42321-42322 42641-42644
Energy/BTU Gross Total
(home screen units)
Total energy of forward and negative energy rate (all energy to heat and
cool). Unit is based on selection for home screen. R 42023-42024 42323-42324 42645-42648
Energy/BTU Totalizer
Overflow Counter
(Net)
Number of times the net energy total overruns. R 42025-42026 — —
Energy/BTU Totalizer
Overflow Counter
(Positive)
Number of times the positive energy total overruns. R 42027-42028 — —
Energy/BTU Totalizer
Overflow Counter
(Negative)
Number of times the negative energy total overruns. R 42029-42030 — —
Modbus Registers and Coils
Page 8 August 2019TTM-UM-03073-EN-01

Descriptive Name Description
Network
Access
Integer and
Long Integer
Single
Precision
32-bit
floating point
Double
Precision
64-bit
floating point
TOTALS (continued)
Energy/BTU Totalizer
Overflow Counter
(Gross)
Number of times the gross energy total overruns. R 42031-42032 — —
Net Flow Totalizer (gal) Total volume as forward flow minus reverse flow. A negative total results
when reverse flow is greater than forward flow. R 42101-42102 42401-42402 42701-42704
Positive Flow Totalizer
(gal)
Total volume of flow in forward direction. Reverse flow is not accounted for
in the total. R 42103-42104 42403-42404 42705-42708
Negative Flow Totalizer
(gal)
Total volume of flow in reverse direction. Forward flow is not accounted for
in the total. R 42105-42106 42405-42406 42709-42712
Gross Flow Totalizer
(gal) Total volume of forward and reverse flow. R 42107-42108 42407-42408 42713-42716
Totalizer Overflow
Counter (Net) Number of times the net flow total overruns. R 42109-42110 — —
Totalizer Overflow
Counter (Positive) Number of times the positive flow total overruns. R 42111-42112 — —
Totalizer Overflow
Counter (Negative) Number of times the negative flow total overruns. R 42113-42114 — —
Totalizer Overflow
Counter (Gross) Number of times the gross flow total overruns. R 42115-42116 — —
Energy/BTU Net Total
(kBTU)
Total energy as positive energy rate minus negative energy rate. A negative
total results when reverse flow is greater than positive energy rate. R 42117-42118 42417-42418 42733-42736
Energy/BTU Positive
Total (kBTU)
Total energy of flow in forward direction, such as heating. Negative energy
rate is not accounted for in the total. R 42119-42120 42419-42420 42737-42740
Energy/BTU Negative
Total (kBTU)
Total energy of flow in reverse direction, such as cooling. Positive energy rate
is not accounted for in the total. R 42121-42122 42421-42422 42741-42744
Energy/BTU Gross Total
(kBTU)
Total energy of forward and negative energy rate (all energy to heat
and cool). R 42123-42124 42423-42424 42745-42748
Net kBTU Totalizer
Overflow Counter Number of times the net energy total overruns. R 42125-42126 — —
Positive kBTU Totalizer
Overflow Counter Number of times the positive energy total overruns. R 42127-42128 — —
Negative kBTU
Totalizer Overflow
Counter
Number of times the negative energy total overruns. R 42129-42130 — —
Gross kBTU Totalizer
Overflow Counter Number of times the gross energy total overruns. R 42131-42132 — —
Net Flow Totalizer
(liters)
Total volume as forward flow minus reverse flow. A negative total results
when reverse flow is greater than forward flow. R 42201-42202 42501-42502 42801-42804
Positive Flow Totalizer
(liters)
Total volume of flow in forward direction. Reverse flow is not accounted for
in the total. R 42203-42204 42503-42504 42805-42808
Negative Flow Totalizer
(liters)
Total volume of flow in reverse direction. Forward flow is not accounted for
in the total. R 42205-42206 42505-42506 42809-42812
Gross Flow Totalizer
(liters) Total volume of forward and reverse flow. R 42207-42208 42507-42508 42813-42816
Totalizer Overflow
Counter (Net) Number of times the net flow total overruns. R 42209-42210 — —
Totalizer Overflow
Counter (Positive) Number of times the positive flow total overruns. R 42211-42212 — —
Totalizer Overflow
Counter (Negative) Number of times the negative flow total overruns. R 42213-42214 — —
Totalizer Overflow
Counter (Gross) Number of times the gross flow total overruns. R 42215-42216 — —
Energy Net Total (kWh) Total energy as positive energy rate minus negative energy rate. A negative
total results when reverse flow is greater than positive energy rate. R 42217-42218 42517-42518 42833-42836
Energy Positive Total
(kWh)
Total energy of flow in forward direction, such as heating. Negative energy
rate is not accounted for in the total. R 42219-42220 42519-42520 42837-42840
Energy Negative Total
(kWh)
Total energy of flow in reverse direction, such as cooling. Positive energy rate
is not accounted for in the total. R 42221-42222 42521-42522 42841-42844
Energy Gross Total
(kWh)
Total energy of forward and negative energy rate (all energy to heat
and cool). R 42223-42224 42523-42524 42845-42848
Modbus Registers and Coils
Page 9August 2019 TTM-UM-03073-EN-01

Descriptive Name Description
Network
Access
Integer and
Long Integer
Single
Precision
32-bit
floating point
Double
Precision
64-bit
floating point
TOTALS (continued)
Net kWh Totalizer
Overflow Counter Number of times the net energy total overruns. R 42225-42226 — —
Positive kWh Totalizer
Overflow Counter Number of times the positive energy total overruns. R 42227-42228 — —
Negative kWh Totalizer
Overflow Counter Number of times the negative energy total overruns. R 42229-42230 — —
Gross kWh Totalizer
Overflow Counter Number of times the gross energy total overruns. R 42231-42232 — —
HOME SCREEN UNITS
Flow Rate Units Flow rate units on home screen as defined in parameter settings.  R 43001 — —
Flow Rate Decimal Number of digits after the decimal of flow rate on home screen. Use with
long integer format. R 43002 — —
Velocity Units Velocity units on home screen as defined in parameter settings.  R 43003 — —
Flow Total Units Total volume units on home screen as defined in parameter settings.  R 43004 — —
Flow Total Decimal Number of digits after the decimal of flow total on home screen. Use with
long integer format. R 43005 — —
Energy Rate Units Energy rate units on home screen as defined in parameter settings.  R 43006 — —
Energy Rate Decimal Number of digits after the decimal of energy rate on home screen. Use with
long integer format. R 43007 — —
Temperature Units Temperature units on home screen as defined in parameter settings.  R 43008 — —
Energy Total Units Energy total units on home screen as defined in parameter settings.  R 43009 — —
Energy Total Decimal Number of digits after the decimal of energy total on home screen. Use with
long integer format. R 43010 — —
SETUP
Low Flow Cutoff
Setting to display flow rate as zero & stop totalizing when flow rate goes
below
this value.
R/W — 44001 —
Low Signal Cutoff Setting to display flow rate as zero & stop totalizing when signal strength
goes below this value and trigger a low signal error message. R/W 44003 — —
High Signal Cutoff Setting to display flow rate as zero & stop totalizing when signal strength
goes above this value and trigger an oversaturate error message. R/W 44004 — —
DIAGNOSTICS ALARMS
Active Failed
Conditions Message code corresponds to the bit (for example, F02 is bit 02). R 45001-45007 — —
Active Out of
Specification
Conditions
Message code corresponds to the bit (for example, S02 is bit 02). R 45008-45014 — —
Active Check Function
Conditions Message code corresponds to the bit (for example, C02 is bit 02). R 45015-45021 — —
Alarm History Individual registers per buffer. R
45033
Array of
100 single
registers
— —
1See “Enumerations” on page 12.
Modbus Registers and Coils
Page 10 August 2019TTM-UM-03073-EN-01