Custom ASCII Protocol
SERIAL COMMUNICATIONS MANUAL
For Laureate Series 2 Digital Panel Meters,
Counters, Timers & L-Series Transmitters
Now with Ethernet
LAUREL Electronics Inc.
3183-G Airway Ave, Costa Mesa, CA, 92626, USA
Tel: (714) 434-6131 Fax: (714) 434-3766 Website: www.laurels.com
1
1. TABLE OF CONTENTS
1. TABLE OF CONTENTS ....................................................................................................... 2
2. INTRODUCTION, CUSTOM ASCII SERIAL PROTOCOL ..................................................... 3
3. SERIAL CONNECTION EXAMPLES.................................................................................... 5
4. JUMPER SETTINGS & FIELD WIRING FOR SERIAL COMMUNICATIONS......................... 7
5. INSTRUMENT SETUP SOFTWARE .................................................................................... 11
6. FRONT PANEL SETUP, SERIAL COMMUNICATIONS ...................................................... 12
7. CUSTOM ASCII COMMUNICATION PROTOCOL................................................................ 16
8. CONTINOUS MODE ........................................................................................................... 18
9. COMMAND MODE............................................................................................................. 20
10. APPENDIX A: DPM MEMORY ADDRESSES AND DATA DEFINITIONS.............................. 30
11. APPENDIX B: COUNTER / TIMER MEMORY ADDRESSES AND DATA DEFINITIONS........ 39
12. APPENDIX C: WEIGHT METER MEMORY ADDRESSES AND DATA DEFINITIONS............ 48
13. RECOMMENDED CONVERTER SUPPLIER ........................................................................ 55
14. WARRANTY ...................................................................................................................... 56
2
2. INTRODUCTION, CUSTOM ASCII SERIAL PROTOCOL
The Custom ASCII Protocol is a simple serial communications protocol which is optimized for use
with our programmable digital panel meters, counters, timers and transmitters.
Digital panel meters, counters and timers accept an optional serial communications plug-in
board, which can be any of the following:
• RS232 board
• RS485 board with dual RJ11 jacks.
• RS485 board with dual RJ45 jacks
• USB board
• USB-to-RS485 converter board
• Ethernet board
• Ethernet-to-RS485 converter board
Our two RS485 meter boards use the same circuitry and support the same serial protocols. The
boards with dual RJ11 jacks can be daisy-chained using readily available, straight-through 6-wire
data cables (not 4-wire telephone cables or crossover cables). Dual RJ45 jacks are available for
use with Modbus, as recommended in the Modbus Specification. With either board, the two jacks
are wired in parallel to allow daisy chaining of meters with no need for a hub. External repeaters
can be used to increase the number of addressable meters.
Our USB-to-RS485 and Ethernet-to-RS485 converter boards allow the host meter to function as a
normal meter, be connected to a host computer or Ethernet local area network (LAN), and also act
as the device server for an RS485 network of up to 31 meters. These should be equipped with
RS485 board with RJ11 connectors for daisy chaining with 6-wire data cables.
Our DIN-rail transmitters come with either an Ethernet or RS232/RS485 I/O port as ordered. This
is in addition to a scalable 4-20 mA output and dual relays, which are standard.
Our DIN-rail Ethernet-to-RS485 device server provides an RJ45 jack for connection to the
Ethernet, an RJ11 jack to support an RS485 network of meters, plus screw terminals to support
an RS485 network of DIN-rail transmitters via a set of 3 or 5 parallel wires (half- or full-duplex).
The Modbus Protocol, described in a different manual, is a software-selectable alternative to the
Custom ASCII Protocol. It is fully compliant with Modbus over Serial Line Specification V1.0
(2002). It is an industry standard which allows devices by different manufacturers to be digitally
addressed on the same network. However, it is more complex than the Custom ASCII Protocol
and is only recommended when Modbus compatibility is required. In Ethernet networks, the
Modbus TCP protocol is seamlessly converted to Modbus RTU or Modbus ASCII by our Ethernet
software. Note: Modbus is not supported by our weight meter.
3
USB connection of multiple meters to a
PC can be via a USB hub or up to 5 hubs
USB
in series. Each USB connection is then
RJ11
automatically assigned a virtual com port
USB/RS485
a b c d
232
number, which can be addressed via
software. The USB standard specifies the
maximum length of a USB cable as 5
meters (16 ft).
A better way to connect multiple meters
to a PC USB port is to install an isolating
b
e
RS485
a
c
f
RJ11
d
RJ11
Computer
with
USB port
USB-to-RS485 converter board in the
first meter and to daisy chain multiple
meters each with an RS485 board. Use a
standard USB cable, Male Type A to Male
b
e
RS485
a
c
d
f
RJ11
RJ11
Type B, to connect the PC to the server
meter. The RJ11 output of each RS485 meter can then be connected to the next meter via a 6conductor straight-through data cable. Up to 30 additional meters may be daisy chained and be
addressed using the Custom ASCII Protocol.
To load the USB driver, connect the meter with a USB board to the computer,
which will display “Found new Hardware.” Insert the USB installation CD and
follow the instructions. When the installation is complete, use the Windows
Device Manager to determine the Com port number. To get to Device Manger,
go to Control Panel, click on System on the Hardware tab, and then on Device
Manager. Go down the device list and click on Ports (COM & LPT) and USB serial port (com #).
Note the com port # for use with communications to your meter, then exit the Control Panel. If
you need to change this number, right-click on USB serial port (com #), then click on Properties,
Port Settings, and Advanced. Change the port to the desired number and click OK, then exit
Control Panel.
Ethernet connection of meters and transmitters requires device configuration via our Node
Manager Software, a Windows-based application that runs on a host computer. Node Manager
automatically discovers all Nodes on a LAN or WAN, plus any devices connected to each Server
Node via an RS485 bus. It is used to configure each Node, such as setting communication
parameters, naming the Node and associated devices, entering email addresses for alarm
notification and data requests, selecting the Node's time zone for time-stamping of emails and
streaming data, and upgrading firmware. Once configuration data has been stored in flash
memory of all Nodes, Node Manager Software can be closed. Please see our separate Ethernet
Manual.
4
3. SERIAL CONNECTION EXAMPLES
5
6
4. JUMPER SETTINGS & FIELD WIRING
1. SAFETY WARNINGS
Digital panel meters, counters, timers and transmitters may be powered with AC (mains) from
85-264 Vac or 95-300 Vdc with standard high voltage power, or 12-34V ac or 10-48 Vdc with the
low voltage power supply option. To avoid the possibility of electrical shock or damaging short
circuits, always unplug the device before opening the case. Please refer to the respective device
manuals for full safety information and instruction on how to open the case. Signal wiring changes
external to the case can be made safely while the units are under power.
2. JUMPERS ON SERIAL METER BOARDS
USB Board &
Basic Ethernet Board
No jumpers needed.
RS232 Board
e - Normal operation.
f - Slave display to RS232 from another meter.
g - Pull-up resistor on RTS line.
Note: Board is shipped with jumpers e and g installed
RS485-Modbus Board, Full Duplex Operation
b & e - Bias jumpers should be installed on 1 board.
a & d - Installed on last meter in long cable run.
RS485-Modbus Board, Half Duplex Operation
b & e - bias jumpers installed on 1 board.
c & f - installed for half duplex operation.
a - installed on last meter in line with long cable runs.
Note: Board is shipped with no jumpers installed.
RS485 Board, Full Duplex Operation
b & d - Installed on last meter in long cable run.
RS485 Board, Half Duplex Operation
a & c - Installed for half duplex operation.
d - Installed on last meter in line with long cable runs.
Modbus
cd
e
f
a
b
RJ45
RJ45
Note: Board is shipped with no jumpers installed.
7
Ethernet-to-RS485 Device Converter Board
& USB-to-RS485 Device Converter Board
Full Duplex Operation
No jumpers for short cable runs.
Add b & d for long cable runs.
Half Duplex Operation
a & c - Installed for half duplex operation.
d - Installed on last meter in line with long cable runs.
3. CONNECTOR WIRING, SERIAL BOARD TO COMPUTER
RS232 INTERFACE Computer
N/C
ISO GND
RX
TX
RTS
N/C
RS485 INTERFACE - FULL DUPLEX
ISO GND
BRX
ARX
ATX
BTX
ISO GND
6
5
4
3
2
1
GND
TX
RX
RTS
RS485 INTERFACE - HALF DUPLEX
6
5
4
3
2
1
GND
BTX
ATX
ARX
BRX
GND
ISO GND
ATX / ARX
BTX / BRX
ISO GND
6
5
4
3
2
1
GND
ATX / ARX
BTX / BRX
GND
RS485-MODBUS - FULL DUPLEX RS485-MODBUS - HALF DUPLEX
(A') RXD0 (B') RXD1 +
(B) TXD1 *
(A) TXD0 -
ISO GND
1
2
3
4
5
6
7
8
TXD0
TXD1
RXD1
RXD0
GND
(B) TX / RXD1
(A) TX / RXD0
ISO GND
1
2
3
4
5
6
7
8
(B) TX/RXD1
(A) TX/RXD0
GND
8
4. TRANSMITTER CONNECTOR WIRING
1
AL2 1
AL2 2
AL1 3
AL1 4
2
3
4
5
P6 Signal
input &
excitation
output
6
P4 Analog
output
P3 Solid
state relays
See below
for different
signal types
Analog out - 1
Analog out + 2
Signal
conditioner
board
P2 Serial
data I/O
P1 Power
input
RS485 RS232
6 N/C TX
5 ARX RX
4 ATX NC
3 GND GND
2 BRX GND
1 BTX N/C
3 Power GND
2 AC neutral or -DC
1 AC high or +DC
5
9
4
8
3
7
2
6
1
RS232 cable with
rear view of DB9
connector to PC
* The termination resistor jumper
a
d
c
a
E4
b
b
E6
settings should only be selected
if the transmitter is the last device
on an RS485 line longer than 200
feet (60 m).
** Or jumper external BTX to BRX
E1
E2
E3
a
c ab
b
cd
and ATX to ARX (same effect as
internal jumpers).
Serial Signal Duplex Jumpers Termination Resistor*
E6 a = Transmit
Full None
RS485
E6 c = Receive
Half E6 b + d** E6 c
RS232 Full None None
9
Serial Signal Duplex Jumpers Termination Resistor*
Full None
E6 a = Transmit
RS485
E6 c = Receive
Half E6 b + d** E6 c
RS232 Full None None
* The termination resistor jumper settings should only be selected if the transmitter is the last
device on an RS485 line longer than 200 feet (60 m).
** Or jumper external BTX to BRX and ATX to ARX (same effect as internal jumpers).
To reset communications to 9600 baud, command mode, Custom ASCII protocol, and Address 1,
place a jumper at E1 and power up the transmitter.
Analog Output Jumpers
Current E2 a + d
Voltage E2 b + c
Excitation Output* Jumpers
5V, 100 mA E3 a + c; E4 a
10V, 120 mA E3 a + c; E4 b
24V, 50 mA E3 b, E4 none
* Attempting to draw more than the rated current will shut down the output.
10
5. PROGRAMMING YOUR SERIAL DEVICE
OVERVIEW
Digital panel meters, counters, timers and transmitters are easily programmed via their serial
port using Windows-based Instrument Setup (IS) software, which provides a graphical user
interface and is available at no charge. This software allows uploading, editing, downloading
and saving of setup data, execution of commands under computer control, listing, plotting and
graphing of data, and computer prompted calibration. Digital panel meters, counters and timers
can also be programmed via their 4-key front panel as explained in their respective manuals.
For Ethernet, please see our separate Ethernet Manual.
GETTING STARTED WITH INSTRUMENT SETUP SOFTWARE
To install IS software, download the file
file name to extract three files, double-click
software, press
matching settings between the instrument and PC, and click on
tions have been established, click on
The best way to learn IS software is to experiment with it. From the Main Menu, click on
to retrieve (or get) the existing setup data from your device. Click on
Setup
bring up screens which allow you to edit the setup file using pull-down menus and other
selection tools. You can save your file to disk by clicking on
download (or put) your edited file into the device by clicking on
items will only be displayed if the appropriate hardware has been detected, such as the dual
relay option for meters. Pressing the F1 key at any time will bring up detailed help information.
An analog output is defined in two steps. The input to the device is first scaled to a digital
reading in engineering units, and this reading is then scaled to the analog output. The digital
reading is also used for setpoint control and can be transmitted as serial data.
ADDITIONAL FEATURES
• The Commands pull-down menu allows you to execute certain functions by using your
computer mouse. The
been executed.
Start
=>
Programs
Commands
pull-down menu will be grayed out unless a
instrument.exe
on setup.exe
=>
IS2
=>
Main Menu
from our website, double-click on the
, and follow the prompts. To launch IS
IS2
. Establish communications by selecting
Establish
.
File
= >
Put Setup
. Once communica-
View
= >
Save Setup
. Programmable
Get Setup
Get
Setup
to
. You can
has
• The Readings pull-down menu provides three formats to display input data on your PC
monitor. In all formats, use the
collection, then press
readings in a 20-row by 10-column table. Plot generates a plot of digital readings vs. time in
seconds, like an oscilloscope. Graph generates a histogram, where the horizontal axis is the
reading and the vertical axis is the number of readings.
Print
for a hardcopy on your PC printer. List presents the latest digital
Pause
and
Continue
11
buttons to control the timing of data
6. FRONT PANEL SETUP, SERIAL COMMUNICATIONS
6.1 FRONT PANEL SETUP, DIGITAL PANEL METERS & SCALE METER ONLY
Press Menu
Select Key
.SEr 1.
Press until
Ser 1
is displayed.
Fixed Parameters:
- No parity
- 8 data bits
- 1 stop bit
Press Digit Select
Key
__000
Output filtering
__000U
Baud rate
__000U
Output update rate,
Continuous Data Output
Mode.
Press Value Select Key
0 Send unfiltered signal
1 Send filtered signal
0 300 baud
1 600 baud
2 1200 baud
3 2400 baud
4 4800 baud
5 9600 baud
6 19200 baud
60 Hz 50 Hz
0 0.017 sec 0.020 sec
1 0.28 sec 0.34 sec
2 0.57 sec 0.68 sec
3 1.1 sec 1.4 sec
4 2.3 sec 2.7 sec
5 4.5 sec 5.4 sec
6 9.1 sec 10.9 sec
7 18.1 sec 21.8 sec
8 36.6 sec 43.5 sec
9 72.5 sec 86.7 sec
.SEr 2.
Serial Setup 2
_0000U
Line feed
_0000U
Alarm data with readings
_0000U
Control of data output
_0000U
Meter address
0 No <LF> following <CR>
1 <LF> following <CR>
0 No alarm data with reading
1 Alarm data with reading
0 Continuous data output
1 Data output on ASCII command only
Select 1 thru F for addresses 1 thru 15.
Select 0. thru F. (with decimal point) for
addresses 16 thru 31.
12
Press Menu
Select Key
Press Digit Select
Key
Press Value Select
Key
.SEr 3.
Serial Setup 3
00000U
RS485 half or full duplex
00000U
Special start & stop char.
(entered using Instrument
Setup Software)
00000U
RTS mode (for RS232)
00000U
Termination characters
00000U
Data sent, digital panel meter
only
0 Full duplex
1 Half duplex
0 * Start, <CR> Stop characters
1 Special Start & Stop characters
0 Normal non-latching RTS
1 Single transmission, latching RTS
0 Only at end of all items
1 At end of each item
0 Reading
1 Peak
2 Valley
3 Reading + Peak
4 Reading + Valley
5 Reading + Peak + Valley
SEr 4.
Serial Setup 4
_Addr
Modbus Address*
00000U
Data sent, scale meter only
__000U
Modbus ASCII gap timeout*
__000U
Serial protocol
__000U
Parity
__000 __000 __000
Select digit to flash.
0 Net + Gross
1 Net only
2 Gross only
3 Peak only (Net or Gross)
4 Net + Gross + Peak
5 Valley only
0 1 sec 2 5 sec
1 3 sec 3 10 sec
0 Custom ASCII
1 Modbus RTU*
2 Modbus ASCII*
0 None
1 Odd (Modbus only)*
2 Even (Modbus only)*
__158
Select 0 through 9 for flashing digit.
Address range is 1 to 247.
*
Modbus is not applicable to our weight meter.
13
6.2 FRONT PANEL SETUP, COUNTERS & TIMERS ONLY
Press Menu
Select Key
. Ser 1.
Serial Setup 1.
Press until
Ser 1
is displayed.
Fixed Parameters
- No parity
- 8 data bits
- 1 stop bit
Press Digit Select
Key
___000
Output filtering
___000U
Baud rate
___000U
Output update rate,
Continuous Data Output
Mode.
Press Value Select Key
0 Send unfiltered signal
1 Send filtered signal
0 300 baud 4 4800 baud
1 600 baud 5 9600 baud
2 1200 baud 6 19200 baud
3 2400 baud
60 Hz 50 Hz
0 0.017 sec 0.020 sec
1 0.28 sec 0.34 sec
2 0.57 sec 0.68 sec
3 1.1 sec 1.4 sec
4 2.3 sec 2.7 sec
5 4.5 sec 5.4 sec
6 9.1 sec 10.9 sec
7 18.1 sec 21.8 sec
8 36.6 sec 43.5 sec
9 72.5 sec 97 sec
. Ser 2.
Serial Setup 2
__0000U
Line feed
__0000U
Alarm data with readings
__0000U
Control of data output
__0000U
Meter address with Custom
ASCII protocol
. Ser 3.
Serial Setup 3
_00000U
RS485 half or full duplex
_00000U
Special start & stop char.
(entered using Instrument
Setup Software)
0 No <LF> after <CR>
1 <LF> after <CR>
0 No alarm data
1 Alarm data with reading
0 Continuous data output
1 Data output on ASCII command only
Select 1 thru F for addresses 1 thru 15.
Select 0. thru F. (with decimal point) for
addresses 16 thru 31.
0 Full duplex
1 Half duplex
0 Standard continuous mode
1 Special start & stop characters
14
Press Menu
Press Digit Select
Press Value Select Key
Select Key
Key
Ser 3.
(continued)
Ser 4.
Serial Setup 4
_00000U
RTS mode for RS232
_00000U
Termination characters
_00000U
Data sent in continuous
mode
___000U
Modbus ASCII gap timeout
0 Normal non-latching RTS
1 Single transmission, latching RTS
0 Only at end of all items
1 At end of each item
0 All active items
1 Item #1 only
2 Item #2 only (if active)
3 Item #3 only (if active)
4 Peak only
5 Displayed item
6 Valley only
7 All active items + Peak
0 1 sec
1 3 sec
2 5 sec
3 10 sec
_ Addr
Modbus Address
___000U
Serial protocol
___000U
Parity
___000 ___000 ___000
Select digit to flash.
0 Custom ASCII
1 Modbus RTU
2 Modbus ASCII
0 None
1 Odd (Modbus only)
2 Even (Modbus only)
___158
Select 0 thru 9 for flashing digit. Address
range is 1 to 247.
15
7. CUSTOM ASCII COMMUNICATION PROTOCOL
7.1 SERIAL COMMUNICATION FORMAT
The Custom ASCII serial communication format for RS232, RS485 and USB is the following:
Duplex ...................... Full duplex for RS232 & RS485. Half duplex selectable for RS485.
Baud Rate .................300, 600, 1200, 2400, 4800, 9600, 19200 selectable by front panel Menu
item “Ser 1”, Sub-menu item “Digit 4” for DPM, "Digit 5" for counter.
Parity ........................None
Word length.............. 8 data bits
Stop bit .................... 1
7.2 MEASUREMENT DATA FORMAT
The basic measurement data format consists of 8 ASCII characters for the DPM, such as
<SP>999.99 <CR> and 9 characters for the counter, such as <SP> 9999.99<CR>, where <SP>
is the space character and <CR> is the carriage return character. The first character is always a
space character or minus sign. A decimal point is always furnished, even when it follows the
last digit.
Adding a Line Feed Character to the Basic Format
Printers and other devices that receive the measurement data may require a line feed character <LF>
following the <CR>. The line feed character may be
selected in “Ser 2”.
Alarm #
4 3 2 1
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
Alarm with
No Overload
A
B
C
D
Alarm with
Overload
E
F
G
H
Adding a Coded Data Character to the Basic Format
It is possible to add a coded character from A to h to
the data string according to the table to the right to
indicate the alarm and overload status of the device.
If used, this character precedes the <CR>, so it is the
last printable character in the string. With the
optional <LF> and coded character selected, the data
string will consist of 10 characters for the DPM:
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
I
J
K
L
Q
R
S
T
M
N
O
P
U
V
W
X
<SP>999.99A<CR><LF> and 11 characters for the
counter: <SP>9999.99A<CR><LF>.
For example, a coded character “G” indicates that
Alarm 2 only is set and that the DPM is in overload
1 1 0 0
1 1 0 1
1 1 1 0
1 1 1 1
a
b
c
d
e
f
g
h
condition. This information is useful when data is
supplied to a computer for listing and analysis, or when data is supplied to a Remote Display in
a Master-Slave configuration.
16
The Counter and Scale Meter are capable of supplying more than 1 measurement value (or
“Item”) with each reading, as selected in “Ser 3”. In the counter, there can be up to 3 Items
plus Peak and Valley values, depending on the selected Function. The scale meter can transmit
Net, Gross and Peak weight.
Values are transmitted in a continuous string with no space between them. If the 5th digit in
“Ser 3” is set to 1, the termination characters of <CR> and optional <LF> appear after each
value. If the 5th digit is et to 0, the termination characters appear only once at the end of the
string. In either case, if included, the coded character appears at the end of the last value only.
7.3 NETWORK CONFIGURATIONS
The meters and transmitters can operate in a point-to-point mode using RS-232 or RS-485, or
in a multi-point mode using RS-485.
The point-to-point mode is a direct connection between a computer (or other digital device)
and the meter or transmitter.
The multi-point mode is a connection from a host computer to a multiplicity of meters or
transmitters bused together with their inputs and outputs connected in parallel. For long cable
runs, the first and last devices should have a termination resistor installed. It is necessary to set
up each device on the bus with a different address from 1 to 31. To command a particular
device, its address is used in conjunction with the command, and only that device responds.
The outputs of all of the devices on the bus are set to a high impedance state, except the device
being addressed. The device addresses range from 1 to 31. A special address to which all
meters respond is 0 and should not be used in the multi-point mode. Addressing of meters can
be set in “Ser 2”.
A device operating in a point-to-point mode must also be addressed. Although any address will
suffice, it is suggested address = 1 be selected as a standard for the point-to-point mode.
7.4 OPERATING MODES
The meters and transmitters can operate in a Continuous Mode or a Command Mode.
In the Continuous Mode, measurements are continuously transmitted by the meter in a
standard data format. Please see the next manual section.
In the Command Mode, the meter does not send any data automatically, but responds to commands received from a host computer. Please see the manual section following the Continuous
Mode.
17
8. CONTINUOUS MODE
8.1 OVERVIEW
In the Continuous Operating Mode, measurements are continuously transmitted by the meter
or transmitter in a standard data format using printable ASCII characters at a user-selectable
rate ranging from 50 or 60 Hz line frequency down to one measurement every 72 seconds. This
data may be received by a remote display at a distant location, by a printer for data logging
purposes, or by a host computer for data analysis or system control.
Both hardware (RTS) and software (XON/XOFF) handshaking are available for RS232, but
neither is available for RS485.
8.1 METERS OR TRANSMITTERS WITH DPM OR SCALE METER MAIN BOARD
The transmission rate of the measurement data can be selected in “Ser 1”. The meter
conversion rate equals the AC power frequency (50 or 60 Hz). Any baud rate may be used, but
if less than the minimum baud rate in the table, the transmission rate will decrease accordingly.
Output Rate Data Output Rate Minimum Baud Rate
“Ser 1” Setting 50 Hz / 60 Hz 1 Item Sent 2 Items Sent 3 Items Sent
0
1
2
3
4
5
6
7
8
9
0.021s / .018 s
0.34 s / 0.28 s
0.68 s / 0.57 s
1.4 s / 1.1 s
2.7 s / 2.3 s
5.4 s / 4.5 s
10.9 s / 9.1 s
21.8 s / 18.1 s
43.5 s / 36.3 s
86.7s / 72.3 s
9600
600
300
300
300
300
300
300
300
300
9600
600 / 1200
300 / 600
300
300
300
300
300
300
300
19200
1200
600
300
300
300
300
300
300
300
8.2 METERS OR TRANSMITTERS WITH COUNTER / TIMER MAIN BOARD
The transmission rate of the measurement data can be selected in “Ser 1". Data transmission is
initiated at the end of the calculation time following the gate time. Data is completely transmitted for one measurement before the calculation of the next measurement is started.
Therefore, the reading rate is influenced by the baud rate, the number of items transmitted, and
gate time. If the selected gate time is less than that shown in the table below, it is not the
determining factor of the reading rate. If it is greater, then it is the determining factor. Time
intervals (reciprocal of rate) between transmissions at the reading rate are:
18
Baud
Rate
Time
1 Item
Min
Gate
Time
2 Items
Min
Gate
Time
3 Items
Min
Gate
Time
4 Items
Min
Gate
300
600
1200
2400
4800
9600
19200
0.37s
0.18s
0.09s
0.05s
0.02s
0.01s
0.01s
0.34s
0.15s
0.06s
0.02s
0.01s
0.01s
0.01s
0.70s
0.35s
0.18s
0.09s
0.04s
0.02s
0.01s
0.67s
0.32s
0.15s
0.06s
0.01s
0.01s
0.01s
10.03s
0.52s
0.26s
0.13s
0.07s
0.03s
0.02s
1.00s
0.49s
0.23s
0.10s
0.04s
0.01s
0.01s
1.37s
0.68s
0.34s
0.17s
0.09s
0.04s
0.01s
1.34s
0.65s
0.31s
0.14s
0.06s
0.01s
0.01s
The data transmission rate may be reduced by sending data every other reading, every fourth
reading, or less. This selection is made in “Ser 1”. A computer, if busy with other tasks, may be
unable to keep up with the faster data rates of the meter, so a handshake function is available
that provides the computer with control over the meters’ data transmissions.
8.3 RTS CONTROL
RTS control does not apply to transmitter, where the RTS line is always held high, nor to
RS485. DPMs and counter / timers have two RS232 RTS modes: unlatched and latched. These
modes are selected in “Ser3”.
In the unlatched mode, the measurement transmission is enabled by a high RTS level and is
disabled by a low RTS level. When disabled, any character being sent is completed. When
enabled, any characters remaining in the data format are transmitted before the next measurement transmission. The computer, when its receive buffer is nearly full, takes the RTS line
low to halt data transmission. When its receive buffer has emptied, it takes the RTS line high to
enable more data transmissions. Some measurements could be missed in the process. In the
latched mode, the RTS input is polled every 3.3 ms. When a high level is detected, RTS is
latched true, even though the RTS line goes low immediately. At the end of each calculation, the
latched RTS value is checked. If it is true, a complete measurement transmission (from 1 to 4
values) is made without interruption, regardless of the state of the RTS line during that time. At
the end of the complete transmission, the latched RTS value is reset false, even though the RTS
line may be high at that instant. The RTS latch does not go true again until the RTS line is first
returned to a low level after the completion of the transmission and then is taken high again.
Latched control provides “print command” operation by sending a transmission for each RTS
pulse. If a second pulse occurs during the transmission, it is not recognized.
8.3 XON / XOFF CONTROL
Applicable to RS232, not RS485. A measurement transmission is enabled by the receipt of an
ASCII XON character. It is disabled by the receipt of an ASCII XOFF character.
19
9. COMMAND MODE
9.1 OVERVIEW
In the Command Mode, the device does not send any data automatically, but responds to commands received from a host computer. These commands can be:
• To transmit the latest, peak, or valley measurement.
• To reset the meter completely or just the peak and valley values and latched alarms.
• To display a value sent from the computer.
• To transmit present setup parameters.
• To receive new setup parameters.
• To monitor or alter data in selected memory locations of the meter.
The selection of either the Continuous mode or the Command Mode can be made from the
front panel Menu selection “Ser 2”. The meter will not respond to a command in the Continuous Mode, except the command “A1”, which puts the meter into the Command Mode.
9.2 COMMAND MODE FORMAT
The minimum format is 4 characters. Example: *5A1
After any command that causes a Meter Reset, such as C0, F, W, X, the Counter sends an “R”
character after the Reset is complete and the Counter is ready to accept a new command.
CHAR 1 - COMMAND IDENTIFIER
All commands begin with “*” followed by the meter address, then a command letter followed
by a sub-command number or letter. Additional characters may be appended. All commands
terminate with <CR> (<LF> ignored). The counter may be assigned a different recognition
character via the RS232 / 485 serial port, but will still recognize the “*”.
Char # Character Description
1
2
3
4
*
0-V
A-Z
0-U
Command Identifier (Recognition Character)
Device Address (0 addresses all devices, 1-V specific)
Command Function
Sub-command (or # Bytes or Words of data being transferred)
CHAR 2 - ADDRESS CODES
The next table is the Serial Communication Address Codes following the “*” for each meter
address number. Also shown is the corresponding character that is set in menu item “SER 2”.
20
Meter #
Meter SER 2
Digit 5(6)
Serial Comm
Address Code
Meter #
Meter SER 2
Digit 5(6)
Serial Comm
Address Code
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
16
CHARS 3 & 4 - COMMANDS AND SUBCOMMANDS
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
0.
1.
2.
3.
4.
5.
6.
7.
8.
9.
A.
B.
C.
D.
E.
F.
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
The examples below use a default address of 1 following the “*“. Substitute the desired
address from the above table of Serial Comm Address Codes. All command sequences shown
must terminate with <CR>, followed by an optional <LF>.
COMMUNICATIONS MODE
Continuous mode *1A0
Command mode *1A1
REQUEST DPM VALUES
Get reading** *1B1
Peak reading *1B2
Valley reading *1B3
** The meter transmits the value or values selected in Ser 3.
REQUEST SCALE METER VALUES
Get reading** *1B1
Net only *1B2
Gross only *1B3
Peak only *1B4
** The meter transmits the value or values selected in Ser 3.
21
REQUEST COUNTER VALUES
All active items 1, 2 or 3 *1B0
Item 1 *1B1
Item 2 *1B2
Item 3 *1B3
Peak *1B4
Displayed item *1B5
Valley *1B6
All active items + Peak + Valley *1B7
RESET FUNCTIONS, DPM & SCALE METER
Cold reset *1C0 Reads NVMEM into RAM locations after RAM is zeroed.
Latched alarms reset *1C2
Peak value reset *1C3
Remote display reset *1C4
External Input B true *1C5
External Input B false *1C6
External Input A true *1C7
External Input A false *1C8
Valley reset *1C9
Tare function *1CA
Tare reset *1CB
RESET FUNCTIONS, COUNTER / TIMER
Cold reset *1C0 Reads NVMEM into RAM locations after RAM zeroed.
Function reset *1C1 Resets all total values and/or peak value.
Latched alarms reset *1C2
Peak value reset *1C3
Remote display reset *1C4 Resets Item 3 to zero if not Arith or Batch.
Removes Alarm View or Peak View if on.
External Input B true *1C5
External Input B false *1C6
External Input A true *1C7
External Input A false *1C8
Valley value reset *1C9
Store totals & reset *1CA
9.3 READING AND WRITING TO RAM AND NONVOLATILE MEMORY
CHARACTERS 1, 2
The Recognition character and Meter Address Code are the same as shown in previous table.
22
CHARACTER 3: Command character:
G Read bytes from RAM Memory
F Write bytes to RAM Memory (DPM and Scale meter only)
R Read bytes from Upper RAM Memory
Q Write bytes to Upper RAM Memory
X Read words from Non-Volatile Memory
W Write words to Non-Volatile Memory
CHARACTER 4: Number of bytes (G, F, R, Q) or words (X, W)
Code #
1 = 1
2 = 2
3 = 3
4 = 4
5 = 5
6 = 6
7 = 7
8 = 8
9 = 9
A = 10
B = 11
C = 12
D = 13
E = 14
F = 15
G = 16
H = 17
I = 18
J = 19
K = 20
L = 21
M = 22
N = 23
O = 24
P = 25
Q = 26
R = 27
S = 28
T = 29
U = 30
CHARACTERS 5, 6
See tables for the RAM MEMORY ADDRESSES and NONVOLATILE MEMORY ADDRESSES with
their respective data definitions.
CHARACTERS 7 & UP: Data to be written (F, Q, W).
GENERAL, READING AND WRITING RAM MEMORY DATA
RAM memory data is read and written as a continuous string of bytes consisting of 2 hex
characters (0-9,A-F) per byte. Included in the command are the total number of bytes to be
transferred and the most significant address in RAM of the continuous string of bytes. The
format is:
Read lower RAM data *1Gnaa
Write lower RAM data *1Fnaa<data>
Read upper RAM data *1Rnaa
Write upper RAM data *1Qnaa<data>
where: n is the number of bytes to be read or written.
aa is the most significant address in RAM of the bytes to be read or written.
<data> is n bytes of 2 hex characters per byte in order from the most to the least
significant byte.
23
The number of bytes n consists of a single code character representing values from 1 to 30 as
shown above under CHARACTER 4. The most significant address aa consists of 2 hex characters as shown below under RAM MEMORY ADDRESSES AND DATA DEFINITIONS.
GENERAL, READING AND WRITING NONVOLATILE MEMORY DATA
Nonvolatile data is read and written as a continuous string of words consisting of 2 bytes or 4
hex characters (0-9,A-F) per word. Included in the command is the total number of words to
be transferred and the most significant address in nonvolatile memory of the continuous string
of words. The format is:
Read nonvolatile memory data *1Xnaa (Meter reset occurs after all data is read.)
Write non-volatile memory data *1Wnaa <data> (Meter reset occurs after data is written.)
where: n is the number of words to be read or written.
aa is the most significant address in nonvolatile memory of the words to be read or
written.
<data> is n words of 2 bytes or 4 hex characters per word in order from the most to the
least significant address
The coded number of words n consists of a single character representing values from 1 to 30
as shown under CHARACTER 4. The most significant address aa consists of 2 hex characters
as shown under NONVOLATILE MEMORY ADDRESSES.
9.4 COMMAND MODE FOR REMOTE DISPLAY OPERATION OF DPM
OVERVIEW
A DPM can serve as a remote display that responds to values sent via serial communications
by a PC or by another DPM in a Master-Slave configuration. In one application, the DPM sends
readings to a PC, which then processes the readings and transmits values back to the DPM for
display. There are 2 modes in which the DPM may act as a remote display:
MODE 1: DPM with Signal Conditioner Card and not in Remote Display Mode
SETUP (left digit) = 0 4-1/2 digit DPM
= 2 4-1/2 digit DPM with Count by 10
= 3 3-1/2 digit DPM
The baud rate must be set the same as the source. The PC Controller uses the H command to
cause the display to halt its normal readings and display the value sent by Serial Communications instead. The DPM must be in the Command mode to receive the data. The data format
sent via Serial Communications is:
*#HSDDDDD.A <CR> where the decimal point is in front, behind (as shown), or
between the D’s (digits).
24
A total of 11 characters plus a CR must be included and sent as ASCII characters. Those in
quotes below are included as shown. The other symbols represent a range of characters except
for CR which is the ASCII character “0D”.
* = Command identifier
# = Device address from 1 to 9, A to V, or 0 for common address
H = Command letter
S = Sign of value, space (or +) for positive, - for negative value
D = Digit from 0 to 9
* = Decimal point placement and must always be included
A = Alarm and overload character code, A to H
<CR> = Carriage return character
The following table lists the Alarm and Overload characters.
ALARM CONDITION NO OVERLOAD OVERLOAD
Neither Alarm on
Alarm 1 only on
Alarm 2 only on
Alarms 1 & 2 on
A
B
C
D
E
F
G
H
If the DPM is in the Continuous mode, it must be put into the Command mode by sending
*#A1 prior to sending the remote display value.
The Remote Display value remains on the display until one of the following occurrences:
a. The command *#C4 is sent removing the Remote Display value and returning to the
normal readings without resetting the DPM.
b. The command *#C0 is sent causing a Cold Reset of the DPM.
c. The command *#C1 is sent causing a Warm Reset of the DPM.
d. Front panel pushbuttons RESET and MENU are simultaneously pushed to cause a Cold
Reset of the DPM.
Notes: After the Remote Display value is entered, the DPM can be put back in the Continuous
mode with the command *#A0 without disturbing the display’s value. DPM must be in the
Command mode for a., b., or c. above. It may be put into the Command mode while displaying
a remote display value with the *1A1 command without affecting the display.
If PEAK (manual or external) or ALARM VIEW (manual) is activated while the remote value is
being displayed, the peak or alarm value is displayed and cannot be removed except by Remote
Display Reset (a., b., or c. above in Command mode) or by manual RESET. If a Remote Display
value is sent while in PEAK or ALARM VIEW, it is ignored, but when PEAK or ALARM VIEW is
turned off, the Remote Display value comes on.
25
MODE 2: DPM with Signal Conditioner Card and in Remote Display Mode
SETUP (left digit) = 1 Remote Display mode
The baud rate must be set the same as the source which may be a PC Controller or another
DPM. The format is the Slave Format. This is the same as MODE 1 above but without the
Command Identifier “*”, the address #, and the Command letter “H”. This is the same format
that data is transmitted from a DPM in the Continuous mode. The string of characters must be
exactly 8 characters plus the CR in length.
SDDDDD.A <CR>
No commands can be received in this mode but the front panel MENU can be accessed. Any
transmissions received other than properly formatted data will result in a meaningless display.
Alarm setpoints, Peak readings and external control functions are disabled while the Remote
Display value is being displayed. When the DPM is Reset, it displays RESET continuously until
data is received.
DATA FORMAT
*1HSDDDDD.A
S = Sign, either blank (for +) or D = Digit from 0 to 9, five digits total. Always include a decimal point even at the end.
A = Alarm character as defined in 8.4, Mode 1.
9.5 COMMAND MODE FOR REMOTE DISPLAY OPERATION OF COUNTER / TIMER
The Counter has 13 Display Modes (0-12). Modes 0-5 are normal measurement modes. Modes
6-12 are dedicated to Remote Display without making any normal readings. In any of the 13
modes, remote display data may be received via RS-232 or RS-485 and be displayed. The
remote data requirements and the Remote Display capabilities vary for the different display
modes and selected Input Functions. The mode is selected by Menu item “ConFiG” “Digit 3”
from the following list:
Normal Readings While Displaying Remote Data Addressable Commands
0 Normal display, Exponent Overflow
1 Normal display, 999999 Overflow
2 1 right-hand dummy zero
3 2 right-hand dummy zeros
4 Real time clock, multi-format
5 Real time clock, hh.mm,ss
H, K or L
H, K or L
H, K or L
H, K or L
H, K or L
H, K or L
26
H, K or L commands
Remote Display Only – No Normal Readings Addressable Commands
6 Addressable remote display
7 Single value remote display
8 1st value of value sequence
9 2nd value of value sequence
A 3rd value of value sequence
B 4th value of value sequence
C Programmed to select specific data from
1 value only
1-4 sequential Values
2-4 sequential Values
3-4 sequential Values
4 sequential Values
1 value only
a data string
The addressable commands of Modes 0-6 can display remote data on one or more Counters
having the command address in a multi-point configuration or a single Counter having the
command address in a Point-to-point configuration. Modes 7 - 11 (B) do not use addressable
commands, but values only. They are primarily designed for Host Counter or Scale meter to
Slave Counter or remote display applications but may be used also in Host Computer to
Remote Display Counter configurations. Since the Host Counter may be selected to transmit up
to four sequential measurement values, Item 1, Item 2, Item 3 and Peak, (Scale meter transmits
up to 3 values) each measurement cycle, Modes 8-11 provide the ability of the Remote Display
to extract one of four sequential values and display it.
Modes 0-5 are normal counter modes that may be commanded as follows:
1. H Command. Overrides the normal display reading only.
2. K Command. The value is not displayed, but is stored as Item 3 if Item 3 is not being
used. It may then become the source, if selected, for the Alarm comparison and the
Analog Output. Item 3 is normally only used for the Batch and Arithmetic functions.
3. L Command. Both 1 and 2.
In addition, the H, K, L commands may or may not include a coded Alarm character. If
included, this character always overrides the internal Alarm comparisons and determines the
alarm indicators, the relay operation and the alarm character sent with the serial communications. Readings continue to be made internally during Remote Display operation and may be
received by a Host Computer, manipulated, and returned as remote data. When reset by a *1C4
Command, the display returns to its internal readings, the Alarms to their internal comparisons,
the Item 3 value to zero, and the Analog Output as scaled for zero input. A signal conditioner
board must be present in these modes to return to normal readings. If no signal conditioner
board is present, any Mode setting from 0-5 automatically changes to Mode 6.
Modes 6-11 are used for remote display operation only. No normal readings are made. A signal
conditioner board is optional, and if present, is ignored. When reset, the display shows “rESEt”
until the first remote display data is received.
Mode 6 is an addressable remote display mode that uses the H, K, L commands.
27
Mode 7 is not addressable, and data representing a value to be displayed is received in a pointto-point connection. In addition to being displayed, that value is put into Item 3, where it may
be selected for Alarm comparisons and/or for Analog Output. If a Coded Alarm character is
included, it overrides the internal alarm comparisons.
Modes 8-11 are able to extract one value of data from a sequence of values, and display that
particular value only. Using this mode, multiple slave counters connected to a Host Counter
could each be displaying a different Item value. Also, the extracted value is put into Item 3
where it may be selected for Alarm comparisons and/or Analog Output. If a Coded Alarm
character is included at the end of the sequence, it is ignored. The remote display reading can
only be changed by Meter Reset, a *1C4 Remote display reset command, or another remote
display H or L command.
Mode 12 - Remote display "C" allows extraction of data from an ASCII string that contains
multiple data values or non-numeric characters. It can accommodate selected Remote Start
and Remote Stop characters. Any number of characters between the Remote Start character
and the data can be masked OFF. Up to 8 display characters (including sign and DP) can be
masked ON. Any number of characters between the last displayed character and the Remote
Stop character can be masked OFF.
When CONFIG, CXXX is set, the meter is a Masked Remote Display, and the following parameters determine its operation. These must be set while the meter is set to something other
than CONFIG, CXXX, because that is the one setting for which there is no two-way serial
communication with the meter. It is suggested to use CONFIG, 6XXX to set the following
parameters, and then to use CONFIG, CXXX for operation.
1. Remote Start character (set to 00 if none desired).
2. Remote Stop character (set to 00 if none desired).
Note: Only one of the above can be set to 00.
3. Number of characters following the Remote Start character to be ignored.
4. Number of characters following the ignored characters to be displayed.
Either Instrument Setup.exe or Serial.exe may be used to set the values for the Remote Display
C mode. These programs may be downloaded from our website.
COMMAND FORMATS
The basic two Command formats of the data sent via Serial Communications are:
*#CSDDDDDD.A<CR><LF> where the decimal point is to the right of any one of the D’s (digits).
*#CSD.DDDEPA<CR><LF> This is the exponential format. The decimal point is fixed.
Alarm comparison and Analog Output are not valid in this format.
* = Recognition character
# = Device address from 1-9, A to V, or 0 for common address.
C = Command letter H, K, L.
28
S = Sign of value, space (or +) for positive, - for negative value. Sign is optional in
display modes 0-7, required in 8-11.
D = Digit from 0 to 9. Number of digits may be 1-6 in display modes 0-7, but must
be 6 in 8-11.
P = Power of 10. 0-9, A-F where A-F represents 10-15
A = Optional Alarm Character as defined in section 2.1
<CR> = Carriage return character
<LF> = Optional line feed character (ignored)
These basic Command formats are used when the Remote Display Counter is in display modes
0 - 6. The basic Data formats are the same except *#C is omitted. The basic Data formats are
used in display mode 7.
Single or multiple (2-4) Data formats are used in display modes 8-11. Example:
SDDDDDD.SDDDDDD.SDDDDDD.SDDDDDD.A<CR><LF>
<LF> optional, “Ser 3” “Digit 5” = 0, termination characters only at end of data string or
SDDDDDD.<CR><LF>SDDDDDD.<CR><LF>SDDDDDD.<CR><LF>SDDDDDD.A<CR><LF>
“Ser 3”, Digit 5 = 1, termination characters at end of each data item.
9.6 RECOGNITION CHARACTER, AND START AND STOP CHARACTERS
The meter recognizes an asterisk ( * ) as the command recognition character. In the counter,
another command recognition character may be chosen to make the meter compatible with an
existing system. The meter will still respond to an asterisk. For all meters, in continuous mode,
a device, such as a printer, may require a start and stop bit to recognize the data string being
sent. Normally there is no start bit and the stop bit is a carriage return <CR>. When the Counter
is in a normal operating mode (not Remote Display), SER 3, XDXXX can be set for the following
combinations:
D Command Recognition Character Continuous Transmission Readings
0
1
2
3
*
Selected
*
Selected
None
None
Selected
Selected
CR
CR
Selected
Selected
Either Instrument Setup.exe or Serial.exe may be used to set the Command recognition
character and the start stop characters. These programs may be downloaded from our website.
29
10. APPENDIX A: DPM MEMORY ADDRESSES AND DATA DEFINITIONS
10.1 DPM 1-BYTE RAM MEMORY DATA
(L) = Lower memory, (U) = Upper memory.
The bit assignments below constitute an 8-bit binary number, which needs to be converted to
Hex using a program such a Scientific Calculator under MS Windows Accessories. To change
an Item in DPM RAM Memory, write the converted Hex value to the Hex Address shown in the
left column. To change an Item in Nonvolatile Memory, go to table 10.4, read the existing twobyte word (MS byte and LS byte) from the DPM for the Hex Address which includes the Item
to be changed, edit the MS or LS byte as appropriate, and write the edited word back to the
Hex Address. Be careful not to overwrite the Sig Cond Type LS byte under Hex Address 15.
Hex Address
Item Name Bit Assignment
DE (L) Configuration Bit 7 6 5 4 3 2 1 0
0 Linear data
1 Custom curve (Extended DPM)
0 Spare
0 No Auto-Tare
1 Auto-Tare
0 0 Peak button displays Peak
0 1 Peak button displays Valley
1 0 Peak b. displays Peak then Valley
1 1 Peak button tares the meter
0 0 0 Not rate
0 0 1 Rate x 0.1
0 1 0 Rate x 1
0 1 1 Rate x 10
1 0 0 Rate x 100
1 0 1 Rate x 1000
1 1 0 Rate x 10,000
BF (L) Analog Setup Bit 7 6 5 4 3 2 1 0
0 Analog output unfiltered
1 Analog output filtered
0 0 0-20 mA current output
0 1 0-10V voltage output
1 0 4-20 mA current output
1 1 -10V to +10V output
30
69 (L) Serial Cnfg3 Bit 7 6 5 4 3 2 1 0
0 0 0 Send Reading
0 0 1 Send Peak
0 1 0 Send Valley
0 1 1 Send Reading + Peak
1 0 0 Send Reading + Valley
1 0 1 Send Reading + Peak + Valley
0 <CR> or <CR><LF> at end of all Items
1 <CR> or <CR><LF> at end of each Item
(if no Alarm character)
0 Non-latching RTS
1 Latching RTS
0 Normal continuous TX
1 Special Start & Stop characters
0 Full duplex
1 Half duplex
35 (L) Decimal Point 01 Byte values in hex XXXXX.
02 (2 hex characters/byte) XXXX.X
03 XXX.XX
04 XX.XXX
05 X.XXXX
06 .XXXXX
34 (L) Lockout2
0 = unlocked
1 = locked
33 (L) Lockout1
0 = unlocked
1 = locked
Bit 7 6 5 4 3 2 1 0 Menu item & front panel lockout
1 Serial configuration
1 Analog output scaling
1 Alarm setpoint programming
1 Alarm setup
1 Front panel DPM reset
1 Front panel Peak & Alarm reset
1 View alarm setpoints
1 View Peak value & Tare function
Bit 7 6 5 4 3 2 1 0 Menu item & front panel lockout
1 Offset, Lo & Hi readings
1 Scale, Lo In, Hi In
1 Filter Setup
1 Setup, Config & Decimal Point
1 InPut Menu Item
31
32 (L) Serial Cnfg2 Bit 7 6 5 4 3 2 1 0
X X X X X Binary Custom ASCII addr. 0-31
0 Continuous mode
1 Command mode
0 Alarm data not included with rdg.
1 Alarm data included with rdg.
0 No <LF> following <CR>
1 <LF> following <CR>
31 (L) Serial Cnfg1 Bit 7 6 5 4 3 2 1 0 Continuous Output Data Rate
60 Hz 50 Hz
0 0 0 0 0.017s 0.02s
0 0 0 1 0.28 0.34
0 0 1 0 0.57 0.68
0 0 1 1 1.1 1.4
0 1 0 0 2.3 2.7
0 1 0 1 4.5 5.4
0 1 1 0 9.1 10.9
0 1 1 1 18.1 21.8
1 0 0 0 36.3 43.5
1 0 0 1 1:13 1:27
1 0 1 0 2:25 2:54
1 0 1 1 4:50 5:48
1 1 0 0 9:40 11:36
1 1 0 1 19:20 23:13
1 1 1 0 38:41 46:25
1 1 1 1 1:17:21 1:32:51
0 0 0 300 baud
0 0 1 600 baud
0 1 0 1200 baud
0 1 1 2400 baud
1 0 0 4800 baud
1 0 1 9600 baud
1 1 0 19200 baud
0 Send unfiltered value
1 Send filtered value
32
2F (L) Filter Bit 7 6 5 4 3 2 1 0
0 0 0 0 Auto Filter
0 0 0 1 Batch (16 samples) filter
Time constant 60 Hz 50 Hz
0 0 1 0 Moving average 0.07 s 0.085 s
0 0 1 1 Moving average 0.14 0.17
0 1 0 0 Moving average 0.28 0.34
0 1 0 1 Moving average 0.57 0.68
0 1 1 0 Moving average 1.13 1.36
0 1 1 1 Moving average 2.27 2.72
1 0 0 0 Moving average 4.53 5.44
1 0 0 1 Moving average 9.06 10.88
1 0 1 0 Unfiltered
0 Low adaptive threshold
1 High adaptive threshold
0 Display batch
1 Display filtered signal
0 Take peak of unfiltered signal
1 Take peak of filtered signal
0 Alarm from unfiltered signal
1 Alarm from filtered signal
2D (L) Setup Bit 7 6 5 4 3 2 1 0 EXT IN 1 EXT IN 2 BOTH
0 0 0 0 Mtr Reset Mtr Hold Mtr Reset
0 0 0 1 Fct Reset Rd Pk/Vl Mtr Reset
0 0 1 0 Mtr Hold Rd Pk/Vl Fct Reset
0 0 1 1 Mtr Hold Tare Mtr Reset
0 1 0 0 Rd Pk/Vl Tare Fct Reset
0 1 0 1 Tare Mtr Reset Mtr Reset
0 1 1 0 DP2 DP3 DP4
0 1 1 1 DP3 DP4 DP5
1 0 0 0 Fct Reset Disp Blank Mtr Reset
1 0 0 1 Mtr Hold Disp Blank Mtr Reset
1 0 1 0 Rd Pk/Vl Disp Blank Fct Reset
1 0 1 1 Tare Disp Blank Mtr Reset
1 1 0 0 Rd Valley Read Peak Fct Reset
1 1 0 1 Tare Tare Reset Mtr Reset
0 0 Scale using Scale & Offset method
0 1 Scale using Coordinates of 2 Points method
1 1 Scale using Reading Coordinates of 2 Points
0 60 Hz power
1 50 Hz power
33
09 (U) Setup1*
* Cannot be
written to RAM
Bit 7 6 5 4 3 2 1 0
0 0 4-1/2 digit display (0.1° temp.)
0 1 Remote display
1 0 4-1/2 digit count by 10 (0.01° t.)
1 1 3-1/2 digit display (1° temp.)
0D (U) Alarm Confg4 Bit 7 6 5 4 3 2 1 0 Alarm Trigger Delay
60 Hz 50Hz
0 0 0 0.018 s 0.021 s
0 0 1 0.035 0.043
0 1 0 0.07 0.085
0 1 1 0.14 0.17
1 0 0 0.28 0.34
1 0 1 0.56 0.68
1 1 0 1.13 1.36
1 1 1 2.27 2.72
0 0 0 Al3 Band Dev, Al4 Band Dev
0 0 1 Al3 Hysteresis, Al4 Band Dev
0 1 0 Al3 Band Dev, Al4 Hysteresis
0 1 1 Al3 Hysteresis, Al4 Hysteresis
1 0 0 No deviation in menus or calc
0C (U) Alarm Confg3 Bit 7 6 5 4 3 2 1 0
0 0 0 0 Al3 Hi active, Al4 Hi active
0 0 0 1 Al3 Lo active, Al4 Hi active
0 0 1 0 Al3 Disabled, Al4 Hi active
0 1 0 0 Al3 Hi active, Al4 Lo active
0 1 0 1 Al3 Lo active, Al4 Lo active
0 1 1 0 Al3 disabled, Al4 Lo active
1 0 0 0 Al3 Hi active, Al4 disabled
1 0 0 1 Al3 Lo active, Al4 disabled
1 0 1 0 Al3 disabled, Al4 disabled
0 0 Al3 non-latch, Al4 non-latch
0 1 Al3 latch, Al4 non-latch
1 0 Al3 non-latch, Al4 latch
1 1 Al3 latch, Al4 latch
0 0 Relay3 On when Al3 active, Relay4 On when Al4 active
0 1 Relay3 Off when Al3 active, Relay4 On when Al4 active
1 0 Relay3 On when Al3 active, Relay4 Off when Al4 active
1 1 Relay3 Off when Al3 active, Relay4 Off when Al4 active
34
0B (U) Alarm Confg2 Bit 7 6 5 4 3 2 1 0 Alarm Trigger Delay
60 Hz 50Hz
0 0 0 0.018s 0.021s
0 0 1 0.035 0.043
0 1 0 0.07 0.085
0 1 1 0.14 0.17
1 0 0 0.28 0.34
1 0 1 0.56 0.68
1 1 0 1.13 1.36
1 1 1 2.27 2.72
0 0 0 Al1 Band Dev, Al2 Band Dev
0 0 1 Al1 Hysteresis, Al2 Band Dev
0 1 0 Al1 Band Dev, Al2 Hysteresis
0 1 1 Al1 Hysteresis, Al2 Hysteresis
1 0 0 No deviation in menus or calc
0A (U) Alarm Confg1 Bit 7 6 5 4 3 2 1 0
0 0 0 0 Al1 Hi active, Al2 Hi active
0 0 0 1 Al1 Lo active, Al2 Hi active
0 0 1 0 Al1 Disabled, Al2 Hi active
0 1 0 0 Al1 Hi active, Al2 Lo active
0 1 0 1 Al1 Lo active, Al2 Lo active
0 1 1 0 Al1 disabled, Al2 Lo active
1 0 0 0 Al1 Hi active, Al2 disabled
1 0 0 1 Al1 Lo active, Al2 disabled
1 0 1 0 Al1 disabled, Al2 disabled
0 0 Al1 & Al2 non-latching
0 1 Al1 latching, Al2 non-latching
1 0 Al1 non-latching, Al2 latching
1 1 Al1 & Al2 latching
0 0 Relay1 On when Al1 active, Relay2 On when Al2 active
0 1 Relay1 Off when Al1 active, Relay2 On when Al2 active
1 0 Relay1 On when Al1 active, Relay2 Off when Al2 active
1 1 Relay1 Off when Al1 active, Relay2 Off when Al2 active
35
00 (U) Serial Cnfg4 Bit 7 6 5 4 3 2 1 0 Serial Protocol
0 0 No Parity
0 1 Odd Parity
1 0 Even Parity
0 0 Custom ASCII protocol (8 bits)
0 1 Modbus RTU protocol (8 bits)
1 0 Modbus ASCII protocol (7 bits)
0 0 1 s Modbus ASCII gap timeout
0 1 3 s Modbus ASCII gap timeout
1 0 5 s Modbus ASCII gap timeout
1 1 10 s Modbus ASCII gap timeout
35 (U) Modbus Addr. 00 to FF Modbus address 0-255
(in Hex format)
36
10.2 DPM 3-BYTE RAM MEMORY DATA
Format for all items except Scale Factor: MS byte Mid byte LS byte
XX XX XX
Format for Scale Factor: *X XX XX
The 4-bit MS nibble “*” sets the polarity and decimal point according to the following table:
Positive Negative Decimal Point
1
2
3
4
5
6
9
A
B
C
D
E
Note: Hex values are 2's complement and absolute values.
10.3 DPM HEX ADDRESSES
MS Mid LS Description
A1 (L)
9E (L)
1B (U)
18 (U)
9B (L)
98 (L)
8F (L)
8C (L)
15 (U)
12 (U)
89 (L)
86 (L)
A0
9D
1A
17
9A
97
8E
8B
14
11
88
85
9F
9C
19
16
99
96
8D
8A
13
10
87
84
XXXXX.
XXXX.X
XXX.XX
XX.XXX
X.XXXX
.XXXXX
Analog high value
Analog low value
Deviation, Alarm4
Deviation, Alarm3
Deviation, Alarm2
Deviation, Alarm1
Offset value
Scale factor
Setpoint4
Setpoint3
Setpoint2
Setpoint1
37
10.4 DPM NONVOLATILE MEMORY ADDRESSES (2 bytes/address)
Hex Addr MS Byte LS Byte Stored As
75
74
73
72
71
70
6F
6E
6D
36
35
18
17
16
15
14
13
12
11
10
0F
0E
0D
0C
0B
0A
09
08
07
06
05
04
03
02
01
00
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
38
11. APPENDIX B: COUNTER / TIMER MEMORY ADDRESSES
AND DATA DEFINITIONS
11.1 COUNTER / TIMER 1-BYTE RAM MEMORY DATA
(L) = Lower memory, (U) = Upper memory
The bit assignments below constitute an 8-bit binary number, which needs to be converted to
Hex using a program such a Scientific Calculator under MS Windows Accessories. To change
an Item in Counter / Timer RAM Memory, write the converted Hex value to the Hex Address
shown in the left column. To change an Item in Nonvolatile Memory, go to table 11.4, read the
existing two-byte word (MS byte and LS byte) from the Counter / Timer for the Hex Address
which includes the Item to be changed, edit the MS or LS byte as appropriate, and write the
edited word back to the Hex Address.
Hex Address
43 (L) Resolution Bit 7 6 5 4 3 2 1 0 Multiplier
42 (L) Recog. Char. ASCII value of custom recognition character
41 (L) Slope Bit 7 6 5 4 3 2 1 0
Item Name Bit Assignment
0 0.00001
1 0.0001
1 0 0.001
1 1 0.01
1 0 0 0.1
1 0 1 1
1 1 0 10
1 1 1 100
1 0 0 0 1000
1 0 0 1 10000
1 0 1 0 100000
0 Positive slope Channel B
1 Negative slope Channel B
0 Positive slope Channel A
1 Negative slope Channel A
3E (L) Scale
Multiplier
Bits 3-0 = 0-A SCALE1 multiplier
Bits 7-4 = 0-A SCALE2 multiplier
0-A: Same multiplier as for Resolution
39
3D (L) Analog Setup Bit 7 6 5 4 3 2 1 0 Analog Output Source
0 0 Filtered Item
0 1 Item 1
1 0 Item 2
1 1 Item 3
0 0 to 20mA output
1 0 to 10V output
1 0 4 to 20mA output
1 1 -10V to 10V output
3C (L) Source Bit 7 6 5 4 3 2 1 0
Compare Setpoint 2 to:
0 0 Filtered Item
0 1 Item 1
1 0 Item 2
1 1 Item 3
Compare Setpoint 1 to:
0 0 Filtered Item
0 1 Item 1
1 0 Item 2
1 1 Item 3
36 (L) Lockout2
0 = unlocked
1 = locked
35 (L) Lockout1
0 = unlocked
1 = locked
Bit 7 6 5 4 3 2 1 0
1 Change Item #
1 CALib
1 Ser 1, Ser 2, Ser 3
1 An Lo, An Hi, An SEt
1 Front Panel meter reset
1 Front Panel Peak, Latched resets
1 View alarm setpoints
1 View Peak locked
Bit 7 6 5 4 3 2 1 0
1 FiLtEr
1 Gate t, time out, batch, pulses
1 SEtuP, ConFiG, display number
1 InPut
1 Change Setpoints
1 SourcE,AL SEt,dEVn1b,1H,2b,2H
1 SCALE, OFFSEt, Coords, rESoLn
1 SLOPE, dECPt
40
34 (L) Configuration Bit 7 6 5 4 3 2 1 0
0 Enable cutoff of VF totalizing
1 Totalize all VF values
0 Linear input
1 Square Root of input
0 0 Basic Counter
0 1 Extended Counter
1 0 Custom Curve #1 (for FR & VF)
1 1 Custom Curve #2 (for VF)
Display mode:
0 0 0 0 Normal, Exponential Overload
0 0 0 1 Normal, 999999 Flashing Overload
0 0 1 0 1 Right-Hand dummy zero
0 0 1 1 2 Right-Hand dummy zeros
0 1 0 0 Clock Time, Stopwatch, Multi-format
0 1 0 1 Clock Time, Stopwatch, hh.mm.ss
0 1 1 0 Remote Display, Addressable
0 1 1 1 Remote Display, Single Value
1 0 0 0 Slave Display, 1st data value of string
1 0 0 1 Slave Display, 2nd data value of string
1 0 1 0 Slave Display, 3rd data value of string
1 0 1 1 Slave Display, 4th data value of string
1 1 0 0 Masked display
33 (L) Serial Cnfg3 Bit 7 6 5 4 3 2 1 0 Transmit:
0 0 0 All active items
0 0 1 Item #1 only
0 1 0 Item #2 only
0 1 1 Item #3 only
1 0 0 Peak value only
1 0 1 All active items + Peak
0 Term chars end of all items
1 Term chars end of each item
0 Non-Latching RTS
1 Latching RTS
0 0 Std recognition char, no start/stop char
0 1 Custom recognition char, no start/stop char
1 0 Std recognition char, special start/stop char
1 0 Custom recog char, special start/stop char
0 Full Duplex
1 Half Duplex
41
00 U Serial Cnfg 4 Bit 7 6 5 4 3 2 1 0 Serial Protocol
1 0 No Parity
2 1 Odd Parity
3 0 Even Parity
0 0 Custom ASCII protocol (8 bits)
0 1 Modbus RTU protocol (8 bits)
1 0 Modbus ASCII protocol (7 bits)
0 0 1 s Modbus ASCII gap timeout
0 1 3 s Modbus ASCII gap timeout
1 0 5 s Modbus ASCII gap timeout
1 1 10 s Modbus ASCII gap timeout
32 (L) Serial Cnfg2 Bit 7 6 5 4 3 2 1 0
X X X X X Counter address 0-31 (5 bits)
1 Command Mode (0 = Continuous)
1 Alarm data included with reading (0 = excluded)
1 LF following CR (0=no LF)
31 (L) Serial Cnfg1 Bit 7 6 5 4 3 2 1 0 Continuous output data rate:
0 0 0 0 Reading rate
0 0 0 1 Reading rate / 2
0 0 1 0 Reading rate / 4
0 0 1 1 Reading rate / 8
0 1 0 0 Reading rate / 16
0 1 0 1 Reading rate / 32
0 1 1 0 Reading rate / 64
0 1 1 1 Reading rate / 128
1 0 0 0 Reading rate / 256
Baud rate:
0 0 0 300 baud
0 0 1 600 baud
0 1 0 1200 baud
0 1 1 2400 baud
1 0 0 4800 baud
1 0 1 9600 baud
1 1 0 19200 baud
0 Send unfiltered value
1 Send filtered value
30 (L) Options Do not use. This byte is determined by installed option boards.
2F (L) Filter Bit 7 6 5 4 3 2 1 0 Approximate time constant:
0 0 0 No filtering
0 0 1 0.1 sec
42
0 1 0 0.2 sec
0 1 1 0.4 sec
1 0 0 0.8 sec
1 0 1 1.6 sec
1 1 0 3.2 sec
1 1 1 6.4 sec
0 Low adaptive threshold
1 High adaptive threshold
0 Display unfiltered input
1 Display filtered input
0 Peak value of unfiltered input
1 Peak value of filtered input
0 Adaptive filter
1 Conventional filter
2E (L) Setup Bit 7 6 5 4 3 2 1 0 EXT IN 1 EXT IN 2
0 0 0 0 Meter Reset Function Reset
0 0 1 0 Meter Reset Peak Display
0 0 1 1 Meter Reset External Gate
0 1 0 0 Function Reset Hold
0 1 0 1 Function Reset Peak Display
0 1 1 0 Function Reset External Gate
0 1 1 1 Hold Peak Display
1 0 0 0 Hold External Gate
1 0 0 1 Peak Display External Gate
1 0 1 0 Meter Reset Display Blank
1 0 1 1 Function Reset Display Blank
1 1 0 0 Hold Display Blank
1 1 0 1 Peak Display Display Blank
1 1 1 0 Display Blank External Gate
1 1 1 1 Display item#2 Display item#3
0 Scale2, Offset2 entered directly
1 Scale2, Offset2 using Coordinates of 2 points
0 Scale1, Offset1 entered directly
1 Scale1, Offset1 using Coordinates of 2 points
0 Blank leading zeros
1 Display leading zeros
0 Zero the total at power on
1 Restore total at power-on
43
2D (L) Input Type
(Values in Hex)
Dual Channel Signal Conditioner
Rate Period Total Time Interval
00 A, B
01 A only
02 Batch
03 A, Atot
05 A, Btot
0B A+B
0C A-B
0D AxB
0E A/B
0F A/B-1
10 A, B
11 A only
1B A+B
1C A-B
1D AxB
20 A, B
21 A only
24 A-B updwn
26 Burst
27 B, Arate
29 A,Bup/dwn
2A A, Binhibit
2B A+B
2C A-B
2D AxB
2E A/B
41 A to B
Stopwatch
50 A to A
51 A to B
52 1/A to A
53 1/A to B
Phase
61 0 to 360
62 -180 /180
VF Converter
4-20 mA 0-1 mA 0-10V
81 A only
82 Batch
83 A, Atotal
88 Atot, A
8F 1/A
91 A only
92 Batch
93 A, Atotal
98 Atot, A
9F 1/A
A1 A only
A2 Batch
A3 A, Atotal
A8 Atot, A
AF 1/A
Quadrature
C0 Total
0B U Alarm Cnfg2 Bit 7 6 5 4 3 2 1 0 #Consecutive readings to Alarm
0 0 0 1
0 0 1 2
0 1 0 4
0 1 1 8
1 0 0 16
1 0 1 32
1 1 0 64
1 1 1 128
0 0 0 Alarm1 Band Deviation
0 0 1 Alarm1 Hysteresis
0 1 0 Alarm2 Band Deviation
0 1 1 Alarm2 Hysteresis
1 0 0 No deviation in menu
44
0D U Alarm Cnfg 4 Same as for DPM, page 35
0C U Alarm Cnfg 3 Same as for DPM, page 35
0A U Alarm Cnfg 1 Bit 7 6 5 4 3 2 1 0
0 0 0 0 Al1 Hi Active, Al2 Hi Active
0 0 0 1 Al1 Lo Active, Al2 Hi Active
0 0 1 0 Al1 Disabled, Al2 Hi Active
0 1 0 0 Al1 Hi Active, Al2 Lo Active
0 1 0 1 Al1 Lo Active, Al2 Lo Active
0 1 1 0 Al1 Disabled, Al2 Lo Active
1 0 0 0 Al1 Hi Active, Al2 Disabled
1 0 0 1 Al1 Lo Active, Al2 Disabled
1 0 1 0 Al1 Disabled, Al2 Disabled
0 0 Al1 Non-Latch, Al2 Non-Latch
0 1 Al1 Latch, Al2 Non-Latch
1 0 Al1 Non-Latch, Al2 Latch
1 1 Al1 Latch, Al2 Latch
0 0 Relay1 On when Al1 active, Relay2 On when Al2 active
0 1 Relay1 Off when Al1 active, Relay2 On when Al2 active
1 0 Relay1 On when Al1 active, Relay2 Off when Al2 active
1 1 Relay1 Off when Al1 active, Relay2 Off when Al2 active
11.2 COUNTER / TIMER 2-BYTE RAM DATA TABLE
Hex MS Hex LS
40
3A
38
3F
39
37
Name Hex Range Dec Range
Pulses
Timeout
Gatetime
0000 – EA5F
0000 – 4E1F
0000 – 4E1F
0 – 59999 Positive magnitude (Units = 1)
0 – 19999 Positive magnitude (Units = 0.01 sec)
0 – 19999 Positive magnitude (Units = 0.01 sec)
11.3 COUNTER / TIMER 3-BYTE RAM DATA TABLE
Hex MS Hex Mid Hex LS Name Stored as
B0 (L)
AA (L)
9E (L)
AD (L)
A4 (L)
9B (L)
1B U
18 U
AF
A9
9D
AC
A3
9A
1A
17
AE
A8
9C
AB
A2
99
19
16
Deviation2 (values always+) (Hysteresis2)
Offset2
Setpoint2
Deviation1 (values always+) (Hysteresis1)
Offset1
Setpoint1
Deviation4
Deviation3
Values stored
as 3-byte 2’s
complement
45
15 (U)
XXXX XXXX
XXX XXXX
XXXX
XXXX XXXX
12 (U)
14
11
13
10
Setpoint 4
Setpoint 3
A7 (L)
A1 (L)
A6
A0
A5
9F
Scale2
Scale1
Values stored as sign (MS bit) +
magnitude (all other bits), fixed DP = 6
11.4 COUNTER / TIMER NON-VOLATILE MEMORY ADDRESSES (2 bytes / address)
Byte 3 Byte 2 Byte 1
Magnitude (Mag)
Sign + Magnitude
(S+M)
Sign + DP + Magnitude
X
S
X XXX
XXXX XXXX XXXX XXXX
XXXX XXXX XXXX XXXX
Magnitude
XXXX XXXX XXXX XXXX
S = Sign
Sign = 1 for negative
DP = 1 for DDDDDD.
DP = 6 for D.DDDDD
(S+DP+M)
2’s Complement (2’s C)
S DP
Magnitude
XXXX XXXX XXXX XXXX
Hex Addr
74
73
72
71
70
6F
6E
6D
6C
6B
6A
35
34
33
32
31
30
2F
2E
2D
2C
2A
MS Byte of NV RAM Stored As
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
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
---
LS Byte of NV RAM Stored As
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
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
46
29
28
27
26
25
24
23
22
21
20
1F
1E
1D
1C
1B
1A
19
18
17
16
15
14
13
12
11
10
0F
0E
0D
0C
0B
0A
09
08
07
06
05
04
03
02
01
00
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
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
Mag
Byte
Bits
Bits
Mag
Bits
Bits
Mag
Mag
Bits
Bits
Bits
Bits
Bits
Bits
2’s C
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
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
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
Mag
Bits
Bits
Bits
Mag
Bits
Bits
Mag
Mag
Bits
Bits
Bits
Bits
Bits
Bits
2’s C
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
47
12. APPENDIX C: WEIGHT METER MEMORY ADDRESSES
AND DATA DEFINITIONS
12.1 WEIGHT METER 1-BYTE RAM MEMORY DATA
(L) = Lower memory, (U) = Upper memory
The bit assignments below constitute an 8-digit binary number, which needs to be converted
to Hex using a program such a Scientific Calculator under MS Windows Accessories. To
change an Item in Counter / Timer RAM Memory, write the converted Hex value to the Hex
Address shown in the left column. To change an Item in Nonvolatile Memory, go to table 11.3,
read the existing two-byte word (MS byte and LS byte) from the Counter / Timer for the Hex
Address which includes the Item to be changed, edit the MS or LS byte as appropriate, and
write the edited word back to the Hex Address.
Hex Address
2D (L)
Item Name Bit Assignment
Setup Bit 7 6 5 4 3 2 1 0 EXT IN A EXT IN B BOTH
0 0 0 0 Meter Reset Meter Hold Cold
0 0 0 1 Funct Reset Peak Disp Cold
0 0 1 0 Meter Hold Peak Disp Func
0 0 1 1 Meter Hold Tare Tare
0 1 0 0 Peak Disp Tare Func
0 1 0 1 Meter Reset Tare Cold
0 1 1 0 Funct Reset Tare Cold
0 1 1 1 Tare Reset Tare Cold
1 0 0 0 Disp Blank Tare Cold
1 0 0 1 Meter Reset Disp Blank Cold
1 0 1 0 Funct Reset Disp Blank Cold
1 0 1 1 Disp Item Tare Tare
1 1 0 0 Disp Item Disp Blank Func
1 1 0 1 Meter Reset Disp Item Cold
1 1 1 0 Funct Reset Disp Item Cold
1 1 1 1 Meter Hold Disp Item Cold
0 Scale Using Scale, Offset
1 Scale Coord of 2 Points Method
0 Peak Key Action Displays Peak
1 Peak Key Action Displays Tare
0 Noise Cancellation for 60 Hz
1 Noise Cancellation for 50 Hz
0 4-1/2 Digits, No Dummy Zero
1 4-1/2 Digits Plus Dummy Zero
48
6B (L) Config Bit 7 6 5 4 3 2 1 0
0 Enable Adaptive Filtering
1 Disable Adaptive Filtering
0 Peak of Net Value
1 Peak of Gross Value
0 Enable Dribble
1 Disable Dribble
0 Setup Scale Method
1 Reading 2 Coordinates Method
0 Allow Negative Readings
1 Disallow Negative Readings
6D (L) Count Bit 7 6 5 4 3 2 1 0
0 0 0 0 No Auto-Zero
0 0 0 1 ±1 Auto-Zero
0 0 1 0 ±2 Auto-Zero
0 0 1 1 ±3 Auto-Zero
0 1 0 0 ±4 Auto-Zero
0 1 0 1 ±5 Auto-Zero
0 1 1 0 ±6 Auto-Zero
0 1 1 1 ±7 Auto-Zero
1 0 0 0 ±8 Auto-Zero
1 0 0 1 ±9 Auto-Zero
0 0 0 0 Count by 1
0 0 0 1 Count by 2
0 0 1 0 Count by 5
0 0 1 1 Count by 10
0 1 0 0 Count by 20
0 1 0 1 Count by 50
0 1 1 0 Count by 100
0 1 1 1 Count by 200
1 0 0 0 Count by 500
1 0 0 1 Count by 1000
2F (L) Filter Bit 7 6 5 4 3 2 1 0
0 0 0 0 Auto Filter
0 0 0 1 Batch Filter (16 Samples)
Time constant 60 Hz 50 Hz
0 0 1 0 Moving Average 0.07s 0.085s
0 0 1 1 Moving Average 0.14 0.17
0 1 0 0 Moving Average 0.28 0.34
0 1 0 1 Moving Average 0.57 0.68
0 1 1 0 Moving Average 1.13 1.36
49
0 1 1 1 Moving Average 2.27 2.72
1 0 0 0 Moving Average 4.53 5.44
1 0 0 1 Moving Average 9.06 10.9
1 0 1 0 Moving Average 18.1 21.8
1 0 1 1 Moving Average 36.2 43.5
1 1 0 0 Moving Average 72.5 87.0
1 1 0 1 Moving Average 145 174
1 1 1 0 Moving Average 290 348
1 1 1 1 Unfiltered (Used with Hold)
0 Low adaptive threshold
1 High adaptive threshold
0 Display value of 16-reading batch
1 Display value of filtered signal
0 Take peak of unfiltered signal
1 Take peak of filtered signal
0 Alarm from unfiltered signal
1 Alarm from filtered signal
35 (L) Decimal Point Bit 7 6 5 4 3 2 1 0 Meter Display
0 0 1 XXXXX. (dec point not displayed)
0 1 0 XXXX.X
0 1 1 XXX.XX
1 0 0 XX.XXX
1 0 1 X.XXXX
1 1 0 .XXXXX
0A (U) Alarm Confg1 Bit 7 6 5 4 3 2 1 0
0 0 0 0 Al1 Hi active, Al2 Hi active
0 0 0 1 Al1 Lo active, Al2 Hi active
0 0 1 0 Al1 Disabled, Al2 Hi active
0 1 0 0 Al1 Hi active, Al2 Lo active
0 1 0 1 Al1 Lo active, Al2 Lo active
0 1 1 0 Al1 disabled, Al2 Lo active
1 0 0 0 Al1 Hi active, Al2 disabled
1 0 0 1 Al1 Lo active, Al2 disabled
1 0 1 0 Al1 disabled, Al2 disabled
0 0 Al1 & Al2 non-latching
0 1 Al1 latching, Al2 non-latching
1 0 Al1 non-latching, Al2 latching
1 1 Al1 & Al2 latching
0 0 Relay1 On when Al1 active, Relay2 On when Al2 active
0 1 Relay1 Off when Al1 active, Relay2 On when Al2 active
1 0 Relay1 On when Al1 active, Relay2 Off when Al2 active
50
1 1 Relay1 Off when Al1 active, Relay2 Off when Al2 active
0B (U) Alarm Confg2 Bit 7 6 5 4 3 2 1 0 Alarm Trigger Delay
60 Hz 50Hz
0 0 0 0.018s 0.021s
0 0 1 0.035 0.043
0 1 0 0.07 0.085
0 1 1 0.14 0.17
1 0 0 0.28 0.34
1 0 1 0.56 0.68
1 1 0 1.13 1.36
1 1 1 2.27 2.72
Alarm Comparison
0 0 Al1 Net, Al2 Net
0 1 Al1 Gross, Al2 Net
1 0 Al1 Net, Al2 Gross
1 1 Al1 Gross, Al2 Gross
0D (U) Alarm Cnfg 4 Same as for DPM, page 35
0C (U) Alarm Cnfg 3 Same as for DPM, page 35
BF (L) Analog Output
Setup
Bit 7 6 5 4 3 2 1 0
0 0 Filtered Net
0 1 Filtered Gross
1 0 Unfiltered Net
1 1 Unfiltered Gross
0 0 Current Output (0-20 mA)
0 1 Voltage Output (0-10V)
1 0 Current Output (4-20 mA)
1 1 Voltage Output (-10 to +10V)
31 (L) Serial Cnfg1 Bit 7 6 5 4 3 2 1 0 Continuous Output Data Rate
60 Hz 50 Hz
0 0 0 0 0.017s 0.020s
0 0 0 1 0.28 0.34
0 0 1 0 0.57 0.68
0 0 1 1 1.1 1.4
0 1 0 0 2.3 2.7
0 1 0 1 4.5 5.4
0 1 1 0 9.1 10.9
0 1 1 1 18.1 21.8
1 0 0 0 36.3 43.5
1 0 0 1 1:13 1:27
51
0 0 0 300 baud
0 0 1 600 baud
0 1 0 1200 baud
0 1 1 2400 baud
1 0 0 4800 baud
1 0 1 9600 baud
1 1 0 19200 baud
0 Send Unfiltered Value
1 Send Filtered Value
32 (L) Serial Cnfg2 Bit 7 6 5 4 3 2 1 0
X X X X X Binary Custom ASCII addr. 0-31
0 Continuous Mode
1 Command Mode
0 Alarm data not included with rdg.
1 Alarm data included with rdg.
0 No <LF> Following <CR>)
1 <LF> Following <CR>
6A (L) Serial Cnfg3 Bit 7 6 5 4 3 2 1 0 Data Sent:
0 0 0 Net + Gross
0 0 1 Net Only
0 1 0 Gross Only
0 1 1 Peak Only (Net or Gross)
1 0 0 Net + Gross + Peak
0 <CR> or <CR><LF> at end of all Items
1 <CR> or <CR><LF> at end of each Item
(if no Alarm character)
0 Non-latching RTS
1 Latching RTS
0 Normal Cont Serial TX
1 Special Start, Stop Characters
0 Full Duplex
1 Half Duplex
00 (U) Serial Cnfg4 Bit 7 6 5 4 3 2 1 0 Serial Protocol
0 0 No Parity
0 1 Odd Parity
1 0 Even Parity
0 0 Laurel ASCII (8 Bits, No Parity)
0 1 Modbus RTU Protocol (8 Bits)
1 0 Modbus ASCII Protocol (7 bits)
0 0 1 s Modbus ASCII Gap Timeout
52
0 1 3 s Modbus ASCII Gap Timeout
1 0 5 s Modbus ASCII Gap Timeout
1 1 10 s Modbus ASCII Gap Timeout
33 (L) Lockout1
0 = Enabled
1 = Disabled
34 (L) Lockout2
0 = Enabled
1 = Disabled
Bit 7 6 5 4 3 2 1 0 Front Panel Setup Menu Item
1 Count
1 Setup, Cnfg, dEC.Pt
1 Input Type
1 Change Displayed Item #
1 Tare
1 Offset, Lo read, Hi read
1 Scale, Lo input, Hi input
1 Filter
Bit 7 6 5 4 3 2 1 0 Front Panel Setup Menu Item
1 Serial Comm Config
1 Analog Output Scaling
1 Alarm Setpoint Programming
1 Alarm Config
1 Front Panel Meter Reset
1 Front Panel Function Reset
1 View Alarm Setpoints
1 View Peak Value
53
12.3 WEIGHT METER 3-BYTE RAM MEMORY DATA (3 Bytes / Item)
All numeric values except scale factor utilize a 2’s complement, 3-byte Hex format, where the
MS byte, Mid byte and LS byte each consist of two Hex nibbles: XX XX XX.
Polarity and decimal point for scale are set by the most significant Hex nibble of the most
significant byte (leftmost byte) as follows:
MS Bit Polarity & Dec Pt
1
2
3
4
5
6
9
A
B
C
D
E
XXXXX.
XXXX.X
XXX.XX
XX.XXX
X.XXXX
.XXXXX
- XXXXX.
- XXXX.X
- XXX.XX
- XX.XXX
- X.XXXX
- .XXXXX
Hex addresses for numeric values are also in the 3-byte Hex format, as explained in 12.1,
as follows:
Numeric Value MS Byte Mid Byte LS Byte
Analog high value
Analog low value
Setpoint 2 Diff
Setpoint 1 Diff
Offset value
Scale factor
Setpoint4
Setpoint3
Setpoint2
Setpoint1
Tare value
A1 (L)
9E (L)
9B (L)
98 (L)
8F (L)
8C (L)
15 (U)
12 (U)
89 (L)
86 (L)
E3 (L)
A0
9D
9A
97
8E
8B
14
11
88
85
E2
9F
9C
99
96
8D
8A
13
10
87
84
E1
12.4 WEIGHT METER NONVOLATILE MEMORY HEX ADDRESSES (2 Bytes / Address)
Please see the 1 Byte RAM Data Table for bit definitions.
54
Hex Address MS Byte LS Byte
1D
1C
1B
18
17
16
15
14
13
12
11
10
0F
0E
0D
0C
0B
0A
09
08
07
06
05
04
03
02
01
00
35
36
Tare3
Tare1
Serial Cnfg 3
Setpoint2 Diff 3
Setpoint2 Diff 1
Setpoint1 Diff 2
Configuration
Analog Setup
Lockout 2
Serial Cnfg 2
Options
Setup
Alarm Cnfg 2
Analog High 3
Analog High 1
Analog Low 2
High Reading 3
High Reading 1
High Input 2
Low Reading 3
Low Reading 1
Low Input 2
Offset 3
Offset 1
Scale Factor 2
Setpoint2 3
Setpoint2 1
Setpoint 1 2
Serial Cnfg 4
Spare
Tare2
Spare
Count
Setpoint2 Diff 2
Setpoint1 Diff 3
Setpoint1 Diff 1
Signal Conditioner Type (do not change)
System Decimal Point
Lockout 1
Serial Cnfg 1
Filter
Input Type
Alarm Cnfg 1
Analog High 2
Analog Low 3
Analog Low 1
High Reading 2
High Input 3
High Input 1
Low Reading 2
Low Input 3
Low Input 1
Offset 2
Scale Factor 3
Scale Factor 1
Setpoint2 2
Setpoint1 3
Setpoint1 1
Modbus Address
Analog Output Type
13. RECOMMENDED CONVERTER SUPPLIER
B & B Electronics Manufacturing Co.
707 Dayton Road, Ottawa, IL 61350. Phone: (815) 433-5100, Fax: (815) 433-5109, Website:
www.bb-elec.com. B & B offers a variety of RS485-to-RS232 converters, RS232-to-RS485
converters, RS485-to-USB converters, and RJ11 to 9-pin adapters. B & B Model 485OT9L is
the recommended RS485-to-RS232 converter for use with products covered in this manual.
55
14. WARRANTY
Laurel Electronics Inc. warrants its products against defects in materials or workmanship for a
period of one year from the date of purchase.
In the event of a defect during the warranty period, the unit should be returned, freight prepaid
(and all duties and taxes) by the Buyer, to the authorized Laurel distributor where the unit was
purchased. The distributor, at its option, will repair or replace the defective unit. The unit will
be returned to the buyer with freight charges prepaid by the distributor.
LIMITATION OF WARRANTY
The foregoing warranty shall not apply to defects resulting from:
1. Improper or inadequate maintenance by Buyer.
2. Unauthorized modification or misuse.
3. Operation outside the environmental specifications of the product.
4. Mishandling or abuse.
The warranty set forth above is exclusive and no other warranty, whether written or oral, is
expressed or implied. Laurel specifically disclaims the implied warranties of merchantability
and fitness for a particular purpose.
EXCLUSIVE REMEDIES
The remedies provided herein are Buyer’s sole and exclusive remedies. In no event shall Laurel
be liable for direct, indirect, incidental or consequential damages (including loss of profits)
whether based on contract, tort, or any other legal theory.
Copyright 2006-2013 Laurel Electronics, Inc. Rev 24 May 2013
56
Loading...