Orbit Merret OMD 202RS User manual

OMD 202RS - MB
/ DIGIT PROGRAMMABLE
LARGE DISPLAY
DATA DISPLAY
RS /
MODBUS
USER MANUAL
WARRANTY
YEARS

2| INSTRUCTIONS FOR USE OMD 202RS
TECHNICAL DATA
Measuring instruments of the OMD series conform to the European regulation //EU and //EU
The instruments are up to the following European standards:
EN - Electrical safety
EN - Electronic measuring, control and laboratory devices – Requirements for EMC “Industrial use”
The recorders are applicable for unlimited use in agricultural and industrial areas.
ORBIT MERRET, spol. sr.o.
Vodnanska /
Prague
Czech Republic
Tel: + -
Fax: + -
e-mail: [email protected]
www.orbit.merret.eu
SAFETY INSTRUCTIONS
Please read carefully the enclosed safety instructions and observe them!
Installation,alloperationalinterventions,maintenanceandservicemustbeperformedbyaqualifiedpersonnel
and in accordance with the attached information and safety regulations. The manufacturer is not liable for
damage caused by improper installation, configuration, maintenance, and service.
The recorder must be installed according to the respective application. Incorrect installation can cause a
malfunction, which can result in damage or accident.
The recorder uses dangerous voltages that can cause a fatal accident. Before you start solving problems
(e.g. in case of failure or disassembly), the device must be disconnected from the power supply. For safety
information the EN - + A standard must be observed.
When removing or inserting a card, observe the safety instructions and follow the recommended procedure.
During any intervention the recorder must be disconnected from the power supply.
Do not attempt to repair or modify the device. A defective recorder must be sent for repair to the manufacturer.
These devices should be safeguarded by isolated or common fuses (breakers)!
The recorder is not designed for installation in potentially explosive surroundings (Ex). Use it only outside
potentially explosive surroundings

INSTRUCTIONS FOR USE OMD 202RS | 3
.CONTENTS
. CONTENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. INSTRUMENT DESCRIPTION . . . . . . . . . . . . . . . . . . . . .
. INSTRUMENT CONNECTION . . . . . . . . . . . . . . . . . . . . .
Instrument connection. . . . . . . . . . . . . . . . . . . . . . . . . .
. INSTRUMENT SETTING . . . . . . . . . . . . . . . . . . . . . . . . . .
User data format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols used in the instructions . . . . . . . . . . . . . . . .
Setting the DP and the (-) sign . . . . . . . . . . . . . . . . . .
Control keys function .. . . . . . . . . . . . . . . . . . . . . . . . .
Setting/permitting items into “USER” menu. . . . . . .
. SETTING “LIGHT” MENU . . . . . . . . . . . . . . . . . . . . . . . .
. Description “LIGHT” menu . . . . . . . . . . . . . . . . . . . .
Entering the menu . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting data output. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting analog output . . . . . . . . . . . . . . . . . . . . . . . . .
Setting display colors. . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the address of IR remote control . . . . . . . . .
Selection of programming menu „LIGHT“/„PROFI“
Restoration of manufacture setting . . . . . . . . . . . . . .
Selection of instrument menu language version. . .
Setting new access password . . . . . . . . . . . . . . . . . .
Instrument identification . . . . . . . . . . . . . . . . . . . . . . .
. SETTING “PROFI” MENU . . . . . . . . . . . . . . . . . . . . . . . .
. Description of “PROFI” menu. . . . . . . . . . . . . . . . . .
. “PROFI” menu - INPUT
.. Resetting internal values . . . . . . . . . . . . . . . .
.. Configuring the instrument.. . . . . . . . . . . . . . .
.. External input function selection . . . . . . . . . .
.. Optional accessory functions of the keys. . .
. “PROFI” menu - CHANNEL
.. Setting measuring parameters . . . . . . . . . . . .
.. Setting mathematic functions . . . . . . . . . . . . .
.. Selection of evaluation of min/max. value . .
. “PROFI” menu - OUTPUT
.. Selection of excitation . . . . . . . . . . . . . . . . . . .
.. Setting Limits . . . . . . . . . . . . . . . . . . . . . . . . . . .
.. Setting analog output. . . . . . . . . . . . . . . . . . . .
.. Selection of display projection . . . . . . . . . . . .
. “PROFI” menu - SERVICE
.. Setting the address of IR remote control . . .
.. Selection of programming menu
„LIGHT“/„PROFI“ . . . . . . . . . . . . . . . . . . . . . . .
.. Restoration manufacture setting . . . . . . . . . .
.. Selection of instrument menu
language version . . . . . . . . . . . . . . . . . . . . . . .
.. Setting new access password . . . . . . . . . . . .
.. Instrument identification . . . . . . . . . . . . . . . . .
. SETTING ITEMS INTO “USER” MENU . . . . . . . . . . . . .
. DATA PROTOCOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. ERROR STATEMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . .
. TABLE OF SYMBOLS. . . . . . . . . . . . . . . . . . . . . . . . . . .
. TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. INSTRUMENT DIMENSIONS AND INSTALATION . . .
. CERTIFICATE OF GUARANTEE . . . . . . . . . . . . . . . . . .

4| INSTRUCTIONS FOR USE OMD 202RS
. INSTRUMENT DESCRIPTION
2.1 DESCRIPTION
The OMD RS model series are / digit large panel programmable displays for the projection of data from data lines RS ,
RS in protocoles ASCII/MESSBUS/MODBUS/PROFIBUS. The instrument can be supplied with either a -colour LED display
(red/green/orange) or with hight intensity SMD LEDs (red or green with brightness of mcd).
The instrument is based on an -bit microcontroller, which secures high accuracy, stability and easy operation of the
instrument.
PROGRAMMABLE PROJECTION
Setting: Selection of integer/float input range
Protocol: ASCII/MESSBUS*
MODBUS - RTU
PROFIBUS DP*
Projection: -… (-…)
DIGITAL FILTERS
Floating average: from… measurements
Exponential average: from… measurements
Arithmetic average: from… measurements
Rounding: setting the projection step for display
MATHEMATIC FUCTIONS
Min/max. value: registration of min./max. value reached during measurement
Tare: designed to reset display upon non-zero input signal
Peak value: the display shows only max. or min. value
Mat. operations: polynome, /x, logarithm, exponential, power, root, sin x
EXTERNAL CONTROL
Lock: control keys blocking
Hold: display/instrument blocking
Tare: tare activation/resetting tare to zero
Resetting MM: resetting min/max value
* description is presented in a separate manual

INSTRUCTIONS FOR USE OMD 202RS | 5
.INSTRUMENT DESCRIPTION
2.2 OPERATION
The instrument is set and controlled by IR Remote control. All programmable settings of the instrument are performed in three
adjusting modes::
LIGHT Simple programming menu
- contains solely items necessary for instrument setting and is protected by optional number code
PROFI Complete programming menu
- contains complete instrument menu and is protected by optional number code
USER User programming menu
- may contain arbitrary items selected from the programming menu (LIGHT/PROFI), which determine the right
(see or change)
- acces without password
All programmable parameters are stored in the EEPROM memory (they hold even after the instrument is switched off).
Complete instrument operation and setting may be performed via OM Link communication interface, which is a standard equip-
ment of all instruments.
The operation program is freely accessible (www.orbit.merret.eu) and the only requirement is the purchase of OML
cable to connect the instrument to PC. It is manufactured in version RS 232 andUSB and is compatible with all
ORBIT MERRET instruments. Another option for connection is with the aid of data output RS 232 or RS 485 (without the need
of the OML cable).
The program OM LINK in „Basic“ version will enable you to connect one instrument with the option of visualization and archiving
in PC. The OM Link „Standard“ version has no limitation of the number of instruments connected.
2.3 OPTIONS
Excitation
is suitable for supplying power to sensors and transmitters.
Comparators
are assigned to monitor one, two, three or four limit values with relay output. The user may select limits regime:
LIMIT/DOSING/FROM-TO. The limits have adjustable hysteresis within the full range of the display as well as selectable delay
of the switch-on in the range of ..., s. Reaching the preset limits is signalled by LED and simultaneously by the switch-on
of the relevant relay.
Analog outputs
will find their place in applications where further evaluating or processing of measured data is required in external
devices. We offer universal analog output with the option of selection of the type of output - voltage/current. The value of analog
output corresponds with the displayed data and its type and range are selectable in Menu.

6| INSTRUCTIONS FOR USE OMD 202RS
. INSTRUMENT CONNECTION
The instrument supply leads should not be in proximity of the incoming low-potential signals.
Contactors, motors with larger input power should not be in proximity of the instrument.
The leads into the instrument input (measured quantity) should be in sufficient distance from all power leads andappliances.
Provided this cannot be secured it is necessary to use shielded leads with connection to ground (bracket E).
The instruments are tested in compliance with standards for use in industrial area, yet we recommend to abide by the above
mentioned principles.

INSTRUCTIONS FOR USE OMD 202RS | 7
.INSTRUMENT CONNECTION
YExternal inputs
EXT. 1
EXT. 3
EXT. 2
4
1
*Option
]Input
12
8
]Relays*
[Analogue output*
AO - U
GND
AO - I
3
1
++
-
\Input - PROFIBUS*
B - Positive
GND
A - Negatice
3
1
XPower supply
N
E
L
+
-
L+
L-
GND
TxD
RxD
RS 485
RS 232
L1
L4
L3
L2
FUSE
L
N
E
X]
[
\
1
3
1
3
–
+
ZExcitation*
7
5
L+
L-
NC
Y
Z
1
4
5
8
12
7
]
-
+

8| INSTRUCTIONS FOR USE OMD 202RS
. INSTRUMENT SETTING
SETTING
PROFI
For expert users
Complete instrument menu
Access is password protected
Possibility to arrange items of the USER MENU
Tree menu structure
SETTING
LIGHT
For trained users
Only items necessary for instrument setting
Access is password protected
Possibility to arrange items of the USER MENU
Linear menu structure
SETTING
USER
For user operation
Menu items are set by the user (Profi/Light) as per request
Access is not password protected
Optional menu structure either tree (PROFI) or linear (LIGHT)

INSTRUCTIONS FOR USE OMD 202RS | 9
INSTRUMENT SETTING .
4.1 SETTING
The instrument is set and controlled by IR Remote control. All programmable settings of the instrument are performed in three
adjusting modes::
LIGHT Simple programming menu
- contains solely items necessary for instrument setting and is protected by optional number code
PROFI Complete programming menu
- contains complete instrument menu and is protected by optional number code
USER User programming menu
- may contain arbitrary items selected from the programming menu (LIGHT/PROFI), which determine the right
(see or change)
- acces without password
Complete instrument operation and setting may be performed via OM Link communication interface, which is a standard
equipment of all instruments.
The operation program is freely accessible (www.orbit.merret.cz) and the only requirement is the purchase of OML cable to
connect the instrument to PC. It is manufactured in version RS and USB and is compatible with all ORBIT MERRET instruments.
Another option for connection is with the aid of data output RS or RS (without the need of the OML cable).

10 | INSTRUCTIONS FOR USE OMD 202RS
INSTRUMENT SETTING
Setting and controlling the instrument is performed by means of the Remote control. With the aid of the Remote control it is
possible to browse through the operation menu and to select and set the required values.
Symbols used in the instructions
DEF values preset from manufacture
42symbol indicates a flashing light (symbol)
MIN inverted triangle indicates the item that can be placed in USER menu
LI M . L.1 broken line indicates a dynamic item, i.e. it is displayed only in particular selection/version
after pressing the key the set value will not be stored
after pressing the key the set value will be stored
continues on page
Setting the decimal point and the minus sign
DECIMAL POINT
Its selection in the menu, upon modification of the number to be adjusted it is performed by the control key with transition
beyond the highest decade, when the decimal point starts flashing. Positioning is performed by / .
THE MINUS SIGN
Setting the minus sign is performed by the key on higher decade. When editing the item substraction must be made from the
current number (e.g..: 013 > , on class 100 > -87)
the last two places may display
measuring units
A 1
4
3
2
Data communications (orange LED)
Measured value (red/green/orange LED)
Ralay status (red LED)
ON the digit is lit
OFF the digit is not lit
OFF the digit is flashing
limits withrestriction
(hysteresis, delay)
M Min/max. value
- upper LED
T Tare
- bottom LED
Function (green LED)
IR remote control
.

INSTRUCTIONS FOR USE OMD 202RS | 11
INSTRUMENT SETTING .
Control keys functions
Setting items into „USER“ menu
• inLIGHT or PROFI menu
• no items permitted in USER menu from manufacture
• on items marked by inverted triangle
NO item will not be displayed in USER menu
YES item will be displayed inUSER menu with the option of setting
SHOW item will be solely displayed in USER menu
KEY MEASUREMENT MENU SETTING NUMBERS/SELECTION
Raccess into USER menu exit menu quit editing
programmable key function back to previous level move to higher decade*
programmable key function move to previous item move down*
programmable key function move to next item move up*
programmable key function confirm selection confirm setting/selection
Gaccess into LIGHT/PROFI menu
G
>3 s
direct access into PROFI menu
1configuration of an item for
“USER” menu
2determine the sequence of items in
“USER - LIGHT” menu
cancelation of instrument’s/controler’s
address
* alternatively, the setting may be done from the numeric keys of the remote control by selecting directly the number required
USER
R
--- NO YES SHOW ---
return to item
legend is flashing - current setting is displayed
1

12 | INSTRUCTIONS FOR USE OMD 202RS
. SETTING LIGHT
SETTING
LIGHT
For trained users
Only items necessary for instrument setting
Access is password protected
Possibility to arrange items of the USER MENU
Linear menu structure
Password “0”
Menu LIGHT
USER menu off
Setting the items DEF
Preset from manufacture
Upon delay exceeding 60 s the program-
ming mode is automatically discontinued
and the instrument itself restores the me-
asuring mode
!

INSTRUCTIONS FOR USE OMD 202RS | 13
SETTING LIGHT .
G
Option - Analog output
TYP. A.O. MIN A.O. MAX A.O. 1000I 20
Option - comparator
142.8 PASSW.0
Access password
LI M . L.1 20 LI M . L.2 40 LI M . L.3 60 LI M . L.4 80
COL. 0 GREEN DIS. L.1 33.33 COL. 1 ORANGE DIS. L.2 66.67
Primary color First color limit Color beyond first limit Second color limit
Return to measuring
mode
Identification 142.8IDENT.YES OMD202RS 78
Instrument type SW number
Selection input range - min
000.00MIN A
Selection input range - max
100.00MAX A MAX. 2
LO-HI
Setting - Order
0000.ooFORM. A
Projection
Instrument address Data protocol SLAVEPROT.0ADDR.9600BAUD
Baud rate Command COM.04COMMAN.
Setting - Communi. failure Setting - Timeout
1.0TIMOUTDASHESMOD.T.O.1REGIST.
Setting - Integer Setting - Integer
U.INT.16FORMAT
COL. 2 RED MENU LI G H T RE.SET.FI RM .LANG.ENGL.
Color beyond second limit Menu type Return to manufacture setting Language selection
PAS.LI .0
New password
ORDER
Setting - maximum input value
65535MAX HI0MIN LO
Setting - minimum input value
Setting - max. input value Lo
0MAX LO0MIN LO
Setting - min. input value Lo Setting - min. input value Hi
65535MIN H1
Setting - max. input value Hi
65535MAX H1
FORMAT > U. INT. 16 / I. INT. 16
Setting - maximum input value
100MAX0MIN
Setting - minimum input value FORMAT > FLOAT
FORMAT > U. INT. 32 / I. INT. 32

14 | INSTRUCTIONS FOR USE OMD 202RS
. SETTING LIGHT
142.8
PASSW. 0 Entering access password
for access into the menu
PASSW.Access into instrument menu
PASSWORD =
- access into menu is unrestricted, after releasing
keys you automaticaly move to first item of the
menu
PASSWORD > 0
- access into menu is protected ny number code
Set “Password” = 42 Example
0 1 2 0212
42
22
32BAUD
G
R
BAUD Selection of transmission rate
of the data output
- selection of range: / / / /
/ / / / Baud
DEF = Baud
BAUD
Selection of rate 115200 Baud > BAUD = 115200 Example
ADDR.9600 576003840019200
600 1200 2400 57600 115200 230400
R

INSTRUCTIONS FOR USE OMD 202RS | 15
SETTING LIGHT .
R
R
0
ADDR.Setting instrument address
DEF = 0
Setting instrument
address
ADDR.
Address 10 > ADDR. = 10 Example
01000PROT.
R
PROT.Selection of data protocol
DEF = SLAVE
PROT.
Menu Description
MASTER Instrument solicits data by selected command from given register
SLAVE Display shows data entered through commands x nebo x
PROT.
Data protocol = SLAVE > SLAVE Example
COMMAN.ASCII
SLAV.E MASTER
R
* subsequent item on the menu depends on instrument setting

16 | INSTRUCTIONS FOR USE OMD 202RS
COM.03 COM.04
R
SETTING LIGHT
Register at address xxxx > COMM. =COM. Example
REGIST.
R
COMMAN.. Setting - Command
COM. > reading setup (holding) registers at
address xxxx
COM. > reading input (input) registers at
address xxxx
- applies only for option “MASTER”
DEF = COM.
COMMAN..
COM.04
REGIST.Setting register address
- range of setting 0…65 535
- the address usually entered is …
(without highest digit)
- defines address of the register to be read
DEF = 1
Register address > REG. = Example
R
1Setting register
address
R
REGIST.
1MO.T.O.
.

INSTRUCTIONS FOR USE OMD 202RS | 17
.SETTING LIGHT
TIMEOU.Setting the time constant for
Timeout
- setting the time delay after which the indication
of interrupted communication will appear on the
display in the mode of Mod t..
- range: …, s
- DEF = . s
Setting - Constant > tIMEOU. = 1 Example
R
1.0 Setting
Timeout constant
R
TIMEOU.
1.0 FORMAT
Item will not appear in MASTER protocol
!
Item will not appear in MASTER protocol and
when MOD t.0. is disabled
!
R
MOD T.O. NO BLANK FLASH DASHES
Selecting mode > DASHES Example
TIMEOU.DASHES
DOT
R
MOD T.O. Selecting display mode in case
of communication failure
DEF = DASHES
MO.T.O. .
Menu Popis
NO Display goes off
BLANK Display goes off
FLASH Dash symbols displayed
DASHES Dash symbols displayed
DOT Decimal point is displayed

18 | INSTRUCTIONS FOR USE OMD 202RS
FORMAT Selection of the format of
input data
DEF = U. INT.
MO.T.O. .
Menu Popis
U.INT. bit unsigned integer in the range …
S.INT. bit signed integer in the range - …
U.INT. bit unsigned integer in the range …
S.INT. bit signed integer in the range - …
FLOAT IEEE Format, see table
SETTING LIGHT.
R
U.INT.16 S.INT.16
Selection of the format > FORMAT = U.INT.16 Example
FORMAT
U.INT.16 MIN LO
FLOATS.INT.32U.INT.32
FORMAT ORDER COMMAND DATA
U. INT. n/a x <AA> <Word Hi> <Word Lo> <CRC Lo> <CRC Hi>
S. INT. n/a x <AA> <Word Hi> <Word Lo> <CRC Lo> <CRC Hi>
U. INT. LO - HI x <AA> <Lo Word Hi> <Lo Word Lo> <Hi Word Hi> <Hi Word Lo> <CRC Lo> <CRC Hi>
S. INT. LO - HI x <AA> <Lo Word Hi> <Lo Word Lo> <Hi Word Hi> <Hi Word Lo> <CRC Lo> <CRC Hi>
FLOAT LO - HI x <AA> <Lo Word Hi> <Lo Word Lo> <Hi Word Hi> <Hi Word Lo> <CRC Lo> <CRC Hi>
U. INT. HI - LO x <AA> <Hi Word Hi> <Hi Word Lo> <Lo Word Hi> <Lo Word Lo> <CRC Lo> <CRC Hi>
S. INT. HI - LO x <AA> <Hi Word Hi> <Hi Word Lo> <Lo Word Hi> <Lo Word Lo> <CRC Lo> <CRC Hi>
FLOAT HI - LO x <AA> <Hi Word Hi> <Hi Word Lo> <Lo Word Hi> <Lo Word Lo> <CRC Lo> <CRC Hi>
LEGEND
SIGN DESCRIPTION
# Beginning of command
<AA> Instrument address (1…247)
<Word xx> 16-bit data
<Lo Word xx> 32-bit data (lower part)
<Hi Word xx> 32-bit data (higher part)

INSTRUCTIONS FOR USE OMD 202RS | 19
.SETTING LIGHT
FORMAT > U. INT. 16 / S. INT. 16
MAX.LO Setting maximum value of
input data
- setting maximum input value
- range of setting 0…65 535
DEF = 65 535 (U.INT.16)
DEF = 32 767 (S.INT.16)
R
0Setting minimum input
value
R
MIN.LO
MIN.LO Setting mimum value of
input data
- setting minimum input value
- range of setting 0…65 535 DEF = 0 (U.INT.16)
DEF = 32 (S.INT.16)
Setting for minimum “Lo” > Min. LO. = Example
0MAx.LO
Setting for maximum “Lo” > MAX. LO. = Example
R
65635 Setting maximum input
value
R
MAX.LO
655356553565535
65135
652356533565435
MIN A65135 6213564135 63135

20 | INSTRUCTIONS FOR USE OMD 202RS
. SETTING LIGHT
FORMAT > U. INT. 32 / S. INT. 32
ORDER Selection of order of the
bit data parts
LO - HI > lower 16 bit is transmitted first
HI - LO > higher 16 bit is transmitted second
DEF = LO - HI
First transmission of lower > ORDER = LO-HI Example
MIN.LO
R
ORDER
ORDER
R
LO-HI HI-LO
R
0Setting minimum input
value
R
MIN.LO
MIN.HI Setting mimum value of
input data
- setting the range of input values “Long integer”
number in two values (words) “MIN Lo” and “MIN
Hi”
- to set minimum divide the values by 65536, split
the outcome to two parts and enter to “MIN Lo”
and “MIN Hi”
- range of setting -99999…99999
MIN Lo
DEF = 0 (U.INT.32)
DEF = 0 (S.INT.32)
MIN. Hi
DEF = 0 (U.INT.32)
DEF = 32768 (S.INT.32)
- preset value in HEX format equals 0x800 0000
Setting for minimum “Lo” > Min. LO. = Example
R
0Setting minimum input
value
R
MIN.HI
0MAx.LO
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