LAUREL LWIFI User manual

LWIFI & LWFIX
Laureate High-Speed Wireless
Communications User Manual
LAUREL Electronics Inc.
3183-G Airway Ave, Costa Mesa, CA, 92626, USA
Tel: [phone] •Fax: [phone] •Website: www.laurels.com

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1. TABLE OF CONTENTS
1. Table of Contents................................................................................................ 2
2. LWIFI & LWIFIX Board Overview........................................................................ 3
3. Board Installation.................................................................................................4
4. Meter Installation & Range Considerations......................................................... 5
5. Network Setup Utility........................................................................................... 6
6. Entry into Instrument Setup (IS) Software........................................................... 9
7. Data Caching, Data Rates & Read Rates...........................................................11
8. Modbus Implementation......................................................................................12
9. Diagnostic Tool QModMaster..............................................................................22
10. Specifications .....................................................................................................32
11. Warranty..............................................................................................................34

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2. LWIFI & LWIFIX OVERVIEW
LWIFI and LWIFIX are communication options for Laureate digital panel meters,
counters and remote displays (or meters for short). They fit into the middle slot that is
reserved for option boards. Both boards operate with the Modbus protocol and can
operate at high data rates, as documented in this manual.
LWIFI is a circuit board with an integral WiFi antenna. It is intended for WiFi applica-
tions where the meter can be mounted on a benchtop or inside a plastic enclosure
that does not block radio waves. It is ideal for communication distances of 30 m (100
ft) or less. It also includes a USB 2.0 port. Use of that port is required for board setup
using our Network Setup (NS) utility. That port can also be used for data transfer in
parallel with the WiFi data, and for meter programming using our Instrument Setup
(IS) software.
LWIFIXis an assembly which consists of a WiFi board, an external antenna, and an
antenna cable that is 760 mm (30”) long. This assembly is designed for WiFi appli-
cations where the meter is mounted inside a metal cabinet that would block radio
waves. By using an outside antenna over a ground plane, LWIFIX provides more
range than LWIFI. It provides the same USB port as LWIFI for programming and for
data transfer.
High data rates are a major advantage of the two WiFi boards compared to legacy
Laureate communication boards when used with data polling. The legacy communica-
tions boards, which include RS232, RS485, USB and Ethernet, are limited to about 2
updates per second when used in a polling command mode since they only operate
at up to 9600 baud and the same 8-bit processor performs multiple operations in
sequence. In the two WiFi boards, which are second generation, a more powerful on-
board processor polls the meter’s microcomputer board at 19200 baud at rates up to
60 readings per sec and stores this data in cache memory. The cached data can then
be read asynchronously by an external master every 10 msec at the maximum bit
rates allowed by WiFi or USB. Please see the Data Update Rates section of this
manual.
The Modbus protocol is used for all WiFi communications and USB data commu-
nications using the WiFi board. That protocol is a master-slave protocol, where a
master (typically a PC or PLC) issues commands, and a slave (or instrument)
responds to these commands, for example by supplying data. The protocol is named
Modbus RTU when used with USB and Modbus TCP/IP when used with WiFi or
Ethernet. The command set is the same, as documented in the Modbus Implemen-
tation section of this manual. WiFi or Ethernet do not support communications with
Laurel’s Custom ASCII protocol. However, that robust protocol is used for internal
communications between the WiFi board and the microcomputer board of the host
meter.

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3. LWIFI & LWIFIX BOARD INSTALLATION
The LWIFI or LWFIX boards come installed in the
meter when the meter is ordered with communica-
tions ordering codes C or D. They can also be
installed later by the user by inserting them into the
middle backplane slot that is reserved for commu-
nications boards. Please see the photo to the right
of a meter with a WIFI board in the middle slot. All
that is visible is the Mini-USB connector.
Disassembling your meter
To remove the electronics assembly from its case, first remove any connectors. Use a flat
blade screwdriver to press down on two spring-loaded tabs at the top of the rear panel to free
the panel from slits at the top the case. Then lift up the rear panel to free it from the slits at
the bottom. This will unhook the rear panel, and the electronics assembly will slide out.
Reassembling your meter
1. Verify that the top and bottom edges of all circuit boards are at the same horizontal level.
If boards are inserted one electrical pin off, this may burn out the electronics.
2. Slide the electronics assembly back into the case until the display board is seated flush
against the front of the case.
3. Carefully insert the fixed bottom tabs of the rear panel into the bottom of the case, then
nudge the circuit boards from side to side with a flat-blade screwdriver until each board is
held firmly by an alignment groove in the rear panel. Also note the alignment pins in the
middle of the rear panel.
4. Once all boards are held firmly, insert the top tabs of the rear panel into the case.
5. Verify that the installed rear panel is flat. If it is bulging out, if the top tabs cannot be
inserted, or if there is no room for connectors, realign the rear panel.
6. Once the rear panel is in place, reinstall the connectors.
Knockouts for
circuit boards
Two fixed
bottom tabs
Two spring
loaded top tabs
Rear panel grooves for circuit board alignment
Circuit board
alignment pins

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4. METER INSTALLATION & RANGE CONSIDERATIONS
A meter with an LWIFI board, which has an integral antenna, needs to be mounted
on a benchtop or in a plastic enclosure that is transparent to radio waves. It is ideal
for communication distances of 30 m (100 ft) or less. The presence of nearby circuit
board traces reduces power radiated by LWIFI by about 10 dB compared LWIFIX.
Male U.FL right-angle connector
Laureate digital panel meter
Omnidirectional antenna, 2.4 GHz
2.4 GHz LWIFX board
RP-SMA feedthrough
Metal electronics cabinet
Antenna cable assy,
760 mm (30)"
A meter with an LWIFIX board, which comes with an external antenna and a 760
mm (30”) long antenna cable, can be mounted inside a metal cabinet that blocks radio
waves. The antenna should be vertical and be mounted on the top surface of the
cabinet, which will then act as the antenna’s ground plane and help shape an antenna
pattern, which is omnidirectional in the horizontal plane. The antenna gain in the
horizontal direction is 5 dBi. Also consider using LWFIX, as opposed to LWIFI, since it
has about 10 dB higher output.
WiFi range depend on many factors, which include the radiated power and sensiti-
vities not only of the WiFi board but also of the WiFi router. Received radio power on
either end is increased by the sum of gains in dB of both antennas. It is decreased by
loss in dB of the antenna cable inside the cabinet and most significantly by loss in dB
along the radio path. Every -3 dB reduces power by a factor of 2. Every -10 dB
reduces power by a factor of 10.
WiFi range can be 90 m (300 ft) with an antenna and an unobstructed line-of-sight
connection outdoors, but it is half of that or less indoors. Substantial signal loss is
caused by materials like concrete, bricks or plaster that absorb radio waves, and by
nearby metal objects that reflect and scatter radio waves. To maximize range, mini-
mize any obstructions between the WiFi router and meter antennas, and maximize
antenna heights. If possible, place the WiFi router in a raised, central location to elimi-
nate WiFi dead zones. WiFi range is also reduced by interference from competing 2.4
GHz signals from other WiFi networks, IoT devices, and products like microwave
ovens.

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5. NETWORK SETUP UTILITY
Network Setup is a software utility that must be run to set up Laureate LWIFI or
LWIFIX boards so that these can work with a specific WiFi network. It allows users to
enter the WiFi’s SSID and password, which will then be stored in the WiFi board. It
automatically discovers the board’s IP address assigned by the WiFi router, the COM
port used for USB communications, the meter type, and the signal conditioner type.
To install, download the compressed file NetworkSetup_1_00.exe (500 kB) from
Laurel’s software downloads web page or click here. Copy the downloaded file into a
directory of your choice and double click on the file name. This will unzip the com-
pressed file into the files below. At the virus warning, click on “More info”then on “Run
anyway.”If you are installing a newer version, first use Windows to uninstall the older
version. To install, click on setup.exe.
You will be presented with the “Discover Network”screen below:
Before “Discover Network”can be executed, you must connect your meter with the
LWIFI or LWIFIX board to the USB port of your PC with a USB cable like our cable
CBL07, and also set up communications of your Laureate meter to the following:

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19200 baud, Custom ASCII protocol, no parity, 8 data bits, 1 stop bit (N81), address
1. To do so, enter these settings from the meter front panel:
SEr 1: 160 SEr 2: 0111
SEr 3: 00000 SEr 4: 000
Click on “Discover Network.”After about 10 seconds, the screen below will appear:
Current Status
The above screen shows that the Network Setup utility has discovered the Network
Board Type, the board’s Firmware Revision, the USB COM Port, the Instrument Type,
and the meter’s Display Reading. All this is via the USB connection. At this point the
board is ready to communicate with the outside world at 38400 baud using the
discovered COM port. The “WiFi Signal Quality”and “IP address”are still shown as
“No Connection”because there is yet no WiFi connection.
WiFi Settings
To connect to your WiFi network, replace “Network_Name”with the name of your
WiFi network, and replace “Network_Password”with the password of your WiFi
network. Then click on “Update WiFi Settings.”After about 10 seconds, the screen
below will appear. The WiFi Signal Quality and the IP Address of your WiFi board as
assigned by the WiFi router will then be displayed, indicating that your meter is now
on the WiFi network. In the example shown, a WiFi Signal Quality of 7 MCS indicates
a WiFi data rate of 72.2 Mbits/sec.

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Cache Setting
Select “Displayed Measurement Only”to cause the WiFi board to only retrieve the
latest reading, called “display value,”from the host meter into cache.
Select “All Measurements”to cause WiFi board to retrieve 6 values from the host
meter into cache. The 6 values depend on the meter type:
•Analog input meter (model numbers starting with L1-L4):
alarm status, display value, peak value, valley value, display value, display value.
•Scale/weight meter (model numbers starting with LW):
alarm status, display value, peak value, net value, gross value, display value.
•Counter/timer (model numbers starting with L5-L8):
alarm status, display (item 1) value, peak value, valley value, item 2 value, item 3
value.
Alarm and overload status are contained in the lower 5 bits of holding registers 7000
and 7800. If a bit is set to 1, the alarm or overload condition exists. If a bit is set to 0,
the condition does not exist. Bit 1 is the least significant (or right-most) bit.
•Bit 5 indicates signal overload, like 21V being applied to the 20V range.
•Bit 4 indicates an alarm condition on alarm 4.
•Bit 3 indicates an alarm condition on alarm 3.
•Bit 2 indicates an alarm condition on alarm 2.
•Bit 1 indicates an alarm condition on alarm 1.

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6. ENTRY INTO INSTRUMENT SETUP (IS) SOFTWARE
Instrument Setup (IS) software is a PC based Windows graphical user interface
(GUI) with pull-down menus that can be used as an alternative to front panel pro-
gramming to set up Laureate panel meters. It is required to program Laureate DIN-rail
mounted transmitters. It saves time and avoids human error when multiple meters are
to be programmed in the same way. Please see our separate Instrument Setup (IS)
Software Manual.
To access IS software through the USB port of a WiFi board, you must first run the
Network Setup (NS) utility and click on the “Run Instrument Setup”button at the
bottom of the “Laurel Network Setup”screen, or you cannot establish communi-
cations. You will be prompted to exit the Network Setup (NS) utility. Click on “Yes”to
do so.
IS software will present Communications Setup screen. Select “Custom ASCII”as the
Protocol and “Panel Meter L, LW”as the Device Type, then click on “RS232 (USB)”
for Communications Type, since you IS software communications will be via USB.
In the resulting Establish Communications screen, select the COM port discovered by
the Network Setup utility and 19200 baud, then click on Establish. After you see
“Communications Established,”click on “Main Menu”to enter the main section of IS
software.
From the Main Menu, click on DPM or Counter in the top menu bard, and click on
“Get Setup”to upload the setup data in the meter to IS software. Click on “View
Setup”to view that Setup using IS software. You can then change meter settings.
When done, click on “Put Setup”to download your changes into your meter.
Do not change anything under the Communication tab of IS software. USB com-
munications outside of IS software will always use the Modbus protocol, address 1,
and 38400 baud. WiFi communications will also use the Modbus but at much higher
data rates.
If you need to reenter the Network Setup utility after running IS software, cycle power
to your meter, or the Network Setup utility will display the message “No Network
Board Found.”

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7. DATA CACHING, DATA RATES & READ RATES
Cached operation is a key feature of LWIFI and LWIFIX boards. Using the Custom
ASCII protocol at 19200 baud and address 1, these boards poll the host meter every
16.666 msec, except when the host meter is an analog input meter or a scale/weight
meter programmed for 50 Hz noise rejection, in which case data is polled every
20.000 msec. The latest values are written into cache. Using the Modbus protocol, an
external Modbus Master can then read the cached data as fast as every 10 msec.
These time intervals applyregardless of the meter’s display update rate, and
whether the meter is an analog input DPM or weight/scale meter, or a pulse input
counter/timer. If the “Cache Setting”is set to “Displayed Measurement Only,”the
meter’s single displayed value is written into cache every 16.666 msec or 20.000
msec. If the “Cache Setting”is set to “All Measurements,”a set of 6 values is written
into cache every 100 msec or 120 msec.
Data can be read from cache by an external Modbus Master as fast as every 10
msec whether the “Cache Setting”is set to “Displayed Measurement Only”for a
single value or to “All Measurements” for a set of 6 values. WiFi data rates can be up
to 72.2 Mbits/sec. USB data rates are fixed at 38400 baud for Modbus operation.
The fastest rate at which updated values can be read via Modbus is paced by the
measurement intervals of the meter. Unchanged values are read by the external
Modbus Master when data is read from cache at a rate faster than that at which
readings are updated into cache.
Measurement intervals for an analog input meter (model numbers starting with L1-
L4 or LW) are every 16.666 msec or 20.000 msec, depending on the meter’s 60 Hz or
50 Hz noise rejection setting. Each 17th interval is used to zero the meter, so that the
measurement is then not updated. For counters (model numbers starting with L5-L8)
used in totalizing mode, the measurement interval (or display update interval) is a
gate time which can be user programmed from 10 msec to 199.99 sec. For counters
used in frequency/rate mode, the measurement interval (or display update interval) is
gate time + 30 msec + 1-2 signal periods.
Internal communications between the LWIFI and LWFIX boards and the host meter
always use the Custom ASCII protocol, 19200 baud and address 1. These para-
meters need to be entered into the meter from its front panel and can be read by
Instrument Setup (IS) software.
USB communications between an LWIFI or LWFIX board and an external Modbus
Master use the Modbus RTU protocol, 38400 baud and address 1. These parameters
cannot be changed and cannot be read by Instrument Setup (IS) software.
WiFi communications between an LWIFI or LWFIX board and an external Modbus
Master use the Modbus TCP protocol at a baud rate allowed by IEEE 802.11 b/g/n.
Addressing uses an IP address assigned by the WiFi router and discovered by our
Network Setup utility.

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8. MODBUS IMPLEMENTATION
1. Modbus Protocol Overview
The Modbus protocol is used with LWIFI and LWIFIX boards, not the Custom
ASCII protocol or Ethernet/IP protocol. The same Modbus function codes and regis-
ters apply to Modbus TCP, which is used with WiFi, and to Modbus RTU, which is
used with USB. The Modbus protocol implementation described in this manual is
simpler than that for Laurel’s legacy communication boards.
Modbus is a master/slave protocol, where a master writes data to a slave’s regis-
ters and reads data from a slave’s registers. A register is a memory location. A
master is a device like a PC or PLC that initiates requests. A slave is typically an
instrument, like a Laurel meter, that responds to requests. A slave cannot initiate
requests. Each slave that is addressed over an Ethernet or WiFi network has an IP
address and will only respond if addressed. A slave that is connected via USB has
address 1 since USB is not designed for multipoint addressing.
•A Holding Register is a 16-bit memory location that may be read or written. If a
32-bit value is to be held in Holding Registers, two 16-bit register addresses must
be specified.
•A Coil is a 1-bit memory location that is used to control a specific outcome. It
may be read or written.
•An Input Register is a 16-bit register that may only be read.
Decimal memory addresses are stated in this manual, not hexadecimal. Use an
online tool to switch from decimal to hexadecimal if required.
Base 1 memory addresses are stated in this manual, not Base 0. With Base 1,
numbering starts with 1, not 0. To switch from Base 1 to Base 0, add 1 to the
address.
A Function Code specifies the type of register. The following Function Codes are
described in this manual:
•FC01is used to read multiple 1-bit coils.
•FC03 is used to read multiple16-bit holding registers.
•FC04 is used to read multiple 16-bit input registers.
•FC05 is used to write to a single 1-bit coil.
•FC0F is used to write to multiple 1-bit coils.
•FC06 is used to write to a single 16-bit holding register.
•FC10 is used to write to multiple 16-bit holding registers.
Signed integers in two’s complement format are binary numbers where the most
significant (or leftmost) bit represents a minus sign when it is a 1. See Wikipedia for
a more detailed description.

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2. Reading the Display Value with Cached “Displayed Measurement Only”
If the Network Setup utility is set to cache “Displayed Measurement Only,”the
cached meter reading will be available for retrieval via Modbus every 10 msec.
Use the table below if the reading is desired as a 32-bit signed two’s complement
integers with a separately read decimal point.
Funct.
Code
Input Register
Base 1 Address
Register Contents
Data Format
FC04
0105
Read decimal point position
0001 = xxxxxx.
0002 = xxxxx.x
0003 = xxxx.xx
0004 = xxx.xxx
0005 = xx.xxxx
0006 = x.xxxxx
FC03
7400-7401
Low address is most significant
word. High address is least signi-
ficant word.
Combine 16-bit words
to form a 32-bit integer.
Use the table below applies if the reading is desired as a 32-bit real number in IEEE
754 floating point format.
Funct.
Code
Input Register
Base 1 Address
Holding Register Contents
Data Format
FC03
8200-8201
Low address is most significant
word. High address is least signi-
ficant word.
Combine 16-bit words
to form a 32-bit floating
point number.

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3. Reading Six Parameters with Cached “All Measurements”
If the Network Setup utility is set to cache “All Measurements,”six readings will be
available for retrieval via Modbus every 100 msec.
Use the table below if readings are desired as 32-bit signed two’s complement
integers with a separately read decimal point.
Funct.
Code
Input Register
Base 1 Address
Register Contents
Data Format
FC04
0105
Read decimal point position
0001 = xxxxxx.
0002 = xxxxx.x
0003 = xxxx.xx
0004 = xxx.xxx
0005 = xx.xxxx
0006 = x.xxxxx
FC03
7000
Alarm and overload status in bits
1-5: - - - - - - - - - - - 5 4 3 2 1
Bit 1 = Alarm 1
Bit 2 = Alarm 2
Bit 3 = Alarm 3
Bit 4 = Alarm 4
Bit 5 = Overload
FC03
7002-7003
Display measurement value
Low address is most
significant word. High
address is least signi-
ficant word. Combine
16-bit words to form a
32-bit integer.
FC03
7004-7005
Peak Value
FC03
7006-7007
Valley value for analog DPMs.
Net weight for scale meters.
Valley for counter/timers.
FC03
7008-7009
Display value for analog DPMs.
Gross weight for scale meters.
Item 2 for counter/timers.
FC03
7010-7011
Display value for analog DPMs.
Display value for scale meters.
Item 3 for counter/timers.

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Use the table below applies if readings are desired as 32-bit real numbers in IEEE
754 floating point format.
Funct.
Code
Input Register
Base 1 Address
Holding Register Contents
Data Format
FC03
7800
Alarm and overload status in bits
1-5: - - - - - - - - - - - 5 4 3 2 1
Bit 1 = Alarm 1
Bit 2 = Alarm 2
Bit 3 = Alarm 3
Bit 4 = Alarm 4
Bit 5 = Overload
FC03
7802-7803
Display measurement value
Low address is most
significant word. High
address is least signi-
ficant word. Combine
16-bit words to form a
32-bit floating point
number.
FC03
7804-7805
Peak Value
FC03
7806-7807
Valley value for analog DPMs.
Net weight for scale meters.
Valley for counter/timers.
FC03
7808-7809
Display value for analog DPMs.
Gross weight for scale meters.
Item 2 for counter/timers.
FC03
7810-7811
Display value for analog DPMs.
Display value for scale meters.
Item 3 for counter/timers.
4. Reading and Writing DPM Relay Setpoints, Scale and Offset
Use the table below to read or write these Holding Registers. Use Function Code
FC03 to read, and Functions codes FC06 or FC10 to write. Any read or write
involving these registers will cause the meter to reset.
Input Register
Base 1 Address
Holding Register
Contents
Data Format
0502-0503
Setpoint 1 value
Low address is most significant word.
High address is least significant word.
Combine 16-bit words to form a 32-bit
signed integer in 2’s complement
format.
0504-0505
Setpoint 2 value
0506-0507
Setpoint 3 value
0508-0509
Setpoint 4 value
0510-0511
Scale factor value
0512 & 0517
Offset value

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5. Reading and Writing to Coils
Coils are 1-bit memory addresses that are used to control specific outcomes. They
may be read or written. Use Function Code FC01 to read. Use Function Codes
FC05 or FC0F to write. Any write involving these coils will cause the meter to reset.
Analog input DPM &
Scale/Weight Meter
Coil #
Cold reset
Latched alarms reset
Peak value reset
Remote display reset
External Input B true
External Input B false
External Input A true
External Input A false
Valley reset
Tare function
Tare reset
1
3(Coil # 2 is skipped)
4
5
6
7
8
9
10
11
12
Pulse Input Counter/Timer
Coil #
Cold reset
Function reset
Latched alarms reset
Peak value reset
Remote display reset
External Input B true
External Input B false
External Input A true
External Input A false
Valley value reset
Store totals & reset
1
2
3
4
5
6
7
8
9
10
11

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6. Non-Volatile Memory Addresses for Advanced Reading or Writing
Use Function Code FC03 to read and Function Codes FC06 or FC10 to write. Any
read or write to these registers causes a meter reset.
Byte 3
Byte 2
Byte 1
Magnitude (Mag)
XXXX XXXX
XXXX XXXX
XXXX XXXX
S = Sign
Sign = 1 for negative
DP = 1 for DDDDDD.
DP = 6 for D.DDDDD
Sign + Magnitude
(S+M)
X
XXX XXXX
XXXX XXXX
XXXX XXXX
S
Magnitude
Sign + DP + Magnitude
(S+DP+M)
X
XXX
XXXX
XXXX XXXX
XXXX XXXX
S
DP
Magnitude
2’s Complement (2’s C)
XXXX XXXX
XXXX XXXX
XXXX XXXX
DPM NONVOLATILE MEMORY ADDRESSES (2 bytes/address)

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DPM Non-volatile Memory Addresses (2 bytes/address)
Dec Addr
MS Byte
LS Byte
Stored As
617
616
615
614
613
612
611
610
609
554
558
524
523
522
521
520
519
518
517
516
515
514
513
512
511
510
509
508
507
506
505
504
503
502
501
500
Setup1
Deviation4 Byte 3
Deviation4 Byte 1
Deviation3 Byte 2
Setpoint4 Byte 3
Setpoint4 Byte 1
Setpoint3 Byte 2
Alarm Cnfg4
Version (read only)
Tare Setup
Serial Cnfg4 (Bits)
Deviation2 Byte 3
Deviation2 Byte 1
Deviation1 Byte 2
Configuration
Analog Setup
Lockout2
Serial Cnfg2
Options
Setup
Alarm Cnfg Byte 2
Analog High Byte 3
Analog High Byte 1
Analog Low Byte 2
High Read Byte 3
High Read Byte 1
High In Byte 2
Low Read Byte 3
Low Read Byte 1
Low In Byte 2
Offset Byte 3
Offset1 (2’s Comp)
Scale Factor2
Setpoint2 Byte 3
Setpoint2 Byte 1
Setpoint1 Byte 2
Serial Confg3
Deviation4 Byte 2
Deviation3 Byte 3
Deviation3 Byte 1
Setpoint4 Byte 2
Setpoint Byte 3
Setpoint3 Byte 1
Alarm Confg 3
M Type (read only)
Analog Type
Modbus Address (Byte)
Deviation2 Byte 2
Deviation1 Byte 3
Deviation1 Byte 1
Sig Cond Type (do not change)
System Decimal Point
Lockout1
Serial Cnfg1
Filter
Input Type
Alarm Cnfg1
Analog High Byte 2
Analog Low Byte 3
Analog Low Byte 1
High Read Byte 2
High In Byte 3
High In Byte 1
Low Read Byte 2
Low In Byte 3
Low In Byte 1
Offset Byte 2
Scale Factor3 (Sign+DP+Mag)
Scale Factor1
Setpoint2 Byte 2
Setpoint1 Byte 3
Setpoint1 Byte 1
Bits
Magnitude
Magnitude
Magnitude
2’s Complement
2’s Complement
2’s Complement
Bits
Byte
Bits
Magnitude
Magnitude
Magnitude
Bits
Bits
Bits
Bits
Bits
Bits
Bits
2’s Complement
2’s Complement
2’s Complement
2’s Complement
2’s Complement
2’s Complement
2’s Complement
2’s Complement
2’s Complement
2’s Complement
Sign+DP+Mag
2’s Complement
2’s Complement
2’s Complement

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Counter/Timer Non-volatile Memory Addresses (2 bytes/address)
Dec Addr
MS Byte of NV RAM
Stored As
LS Byte of NV RAM
Stored As
616
615
614
613
612
611
610
609
608
607
606
553
552
551
550
548
548
547
546
545
544
542
541
540
539
538
537
536
535
534
533
532
531
530
529
528
527
526
Deviation4 Byte 3
Deviation4 Byte 1
Deviation3 Byte 2
Setpoint4 Byte 3
Setpoint4 Byte 1
Setpoint3 Byte 2
Alarm Confg4
Version (read only)
T Stop
R Show
R Stop
Analog High2 Byte 3
Analog High2 Byte 1
Analog Low3 Byte 2
Serial Confg4
Total A Byte 6
Total A Byte 4
Total A Byte 2
Total B Byte 6
Total B Byte 4
Total B Byte 2
Do not use
Cutoff Byte 2
Recog Character
Do not use
Display Item
Pulses Byte 2
Scale Multiplier
Source
Timeout Byte 2
Gate Time Byte 2
Lockout2
Config
Serial Config2
Options
Setup
Alarm Config 2
Analog High Byte 3
Mag
Mag
Mag
2’s C
2’s C
2’s C
Bits
Byte
Byte
Byte
Byte
2’s C
2’s C
2’s C
Bits
Mag
Mag
Mag
Mag
Mag
Mag
---
Mag
Byte
Bits
Bits
Mag
Bits
Bits
Mag
Mag
Bits
Bits
Bits
Bits
Bits
Bits
2’s C
Deviation4 Byte 2
Deviation3 Byte 3
Deviation3 Byte 1
Setpoint4 Byte 2
Setpoint3 Byte 3
Setpoint3 Byte 1
Alarm Confg3
M Type (read only)
T Start
R Skip
R Start
Analog High2 Byte 2
Analog Low2 Byte 3
Analog Low2 Byte 1
Modbus Address
Total A Byte 5
Total A Byte 3
Total A Byte 1
Total B Byte 5
Total B Byte 3
Total B Byte 1
Analog Type
Cutoff Byte 1
System Decimal Point
Resolution
Slope
Pulses Byte 1
Analog Output Setup
Batch
Timeout Byte 1
Gate Time Byte 1
Lockout1
Serial Config3
Serial Config1
Filter
Input Type
Alarm Config1
Analog High Byte 2
Mag
Mag
Mag
2’s C
2’s C
2’s C
Bits
Byte
Byte
Byte
Byte
2’s C
2’s C
2’s C
Byte
Mag
Mag
Mag
Mag
Mag
Mag
Bits
Mag
Bits
Bits
Bits
Mag
Bits
Bits
Mag
Mag
Bits
Bits
Bits
Bits
Bits
Bits
2’s C

- 20 -
525
524
523
522
521
520
519
518
517
516
515
514
513
512
511
510
509
508
507
506
505
504
503
502
501
500
Analog High Byte 1
Analog Low Byte 2
Deviation 2 Byte 3
Deviation 2 Byte 1
Deviation 1 Byte 2
Offset2 Byte 3
Offset2 Byte 1
Scale2 Byte 2
Offset1 Byte 3
Offset1 Byte 1
Scale1 Byte 2
Setpoint2 Byte 3
Setpoint2 Byte 1
Setpoint1 Byte 2
High Read2 Byte 3
High Read2 Byte 1
High In2 Byte 2
Low Read2 Byte 3
Low Read2 Byte 1
Low In2 Byte 2
High Read1 Byte 3
High Read1 Byte 1
High In1 Byte 2
Low Read1 Byte 3
Low Read1 Byte 1
Low In1 Byte 2
2’s C
2’s C
Mag
Mag
Mag
2’s C
2’s C
S+M
2’s C
2’s C
S+M
2’s C
2’s C
2’s C
2’s C
2’s C
S+DP+M 2’s
C
2’s C
S+DP+M 2’s
C
2’s C
S+DP+M
2’s C
2’s C
S+DP+M
Analog Low Byte 3
Analog Low Byte 1
Deviation2 Byte 2
Deviation1 Byte 3
Deviation1 Byte 1
Offset2 Byte 2
Scale2 Byte 3
Scale2 Byte 1
Offset1 Byte 2
Scale1 Byte 3
Scale1 Byte 1
Setpoint2 Byte 2
Setpoint1 Byte 3
Setpoint1 Byte 1
High Read2 Byte 2
High In2 Byte 3
High In2 Byte 1
Low Read2 Byte 2
Low In2 Byte 3
Low In2 Byte 1
High Read1 Byte 2
High In1 Byte 3
High In1 Byte 1
Low Read1 Byte 2
Low In1 Byte 3
Low In1 Byte 1
2’s C
2’s C
Mag
Mag
Mag
2’s C
S+M
S+M
2’s C
S+M
S+M
2’s C
2’s C
2’s C
2’s C
S+DP+M
S+DP+M
2’s C
S+DP+M
S+DP+M
2’s C
S+DP+M
S+DP+M
2’s C
S+DP+M
S+DP+M