Orbit Merret OM 602RS User manual

OM RS
 DIGIT DATA DISPLAY
RS /
ASCII/MESSBUS/PROFIBUS
USER MANUAL
Outstanding Measurement Value

USER MANUAL OM 602RS | 3
OM RS
 DIGIT DATA DISPLAY
RS /
ASCII/MESSBUS/PROFIBUS
WARRANT Y
YEARS

4 | USER MANUAL OM 602RS
TECHNICAL SPECIFICATIONS
Instruments of the OM  series comply with the EU //EU a//EU directive and meet the following European
standards:
EN - Electrical safety
EN - Electrical measuring, control and laboratory equipment
- EMC requirements "Industrial Area"
IEC : , c.  Seismic resistance
The device is suitable for unlimited use in agricultural and industrial areas.
SAFETY INSTRUCTIONS
Please read and observe the enclosed safety instructions carefully!
Installation, all operations, maintenance and service must be carried out by qualified personnel only
and in accordance with the enclosed information and safety regulations.
The manufacturer is not responsible for any damage caused by improper installation, configuration, maintenance and
service of the device.
The device must be installed correctly according to the actual application. Improper installation may cause malfunction,
which may result in damage to the unit or an accident.
The device uses dangerous voltage that can cause a fatal accident. The unit must be disconnected from the power supply
before starting troubleshooting (in case of malfunction) or before dismantling the unit. For safety information, EN  -
+ A must be observed.
When removing orinserting an electronics card, observe the safetyinstructions and follow the recommended procedures.
Disconnect the unit from power supply before inserting / extracting any electronics cards.
Do not attempt to repair ormodifythe device yourself. In case of malfunction the device must be dismounted and submitted
to the manufacturer for repair.
These devices should be protected by either individual or shared fuses (circuit breakers)!
The device is not intended for installation in explosive areas. Use the device only outside the explosive areas.
DANGER WARNING ATTENTION
RISK OF ELECTRIC SHOCK
-Disconnectallpowersupplyandlivewires
before servicing.
RISKS ASSOCIATED WITH USE
- Do not use this product in a safety
critical system.
- Do not disassemble, repair or modify
the product.
- Do not use the product outside the
recommended operating conditions.
RISKS ASSOCIATED WITH USE
- Install a 100 mA fuse
Failure to followthis instruction will result
in death or serious injury.
Failure to follow these instructions may
result in death, serious injury, or damage
to the equipment
Failure to observe this precaution could
result in personal injury or equipment
damage.
This electrical equipment may be installed, operated and maintained only by qualified personnel.
ORBIT MERRET assumes no responsibility for any consequences arising from the use of this equipment.

USER MANUAL OM 602RS | 5
.CONTENTS
. CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. INSTRUMENT DESCRIPTION. . . . . . . . . . . . . . . . . . . .
. INSTRUMENT CONNECTION . . . . . . . . . . . . . . . . . . . .
Measuring ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Instrument connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. INSTRUMENT SETTING . . . . . . . . . . . . . . . . . . . . . . .
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 . . . . . . . . . . . . . . . . . . . . . 
Setting input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting analog output . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.. . . . . . . . . . . . . . . . . . .
.. Setting instruments. . . . . . . . . . . . . . . . . . . . . . . .
.. External input function selection . . . . . . . . . . .
.. Optional accessory functions of the keys . . .
. “PROFI” menu - Channel
.. Setting input parameters. . . . . . . . . . . . . . . . . . .
.. Setting mathematic functions . . . . . . . . . . . . . .
.. Selection of evaluation of min/max. value. . .
. “PROFI” menu - OUTPUT
.. Setting Limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.. Setting analog output. . . . . . . . . . . . . . . . . . . . . .
.. Selection of display projection . . . . . . . . . . . . .
. “PROFI” menu - SERVICE
.. 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 PROTOKOL . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. ERROR STATEMENTS . . . . . . . . . . . . . . . . . . . . . . . . .
. TABLE OF SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . .
. TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . .
. INSTRUMENT DIMENSIONS AND INSTALATION . .
. CERTIFICATE OF GUARANTEE . . . . . . . . . . . . . . . . .

6 | USER MANUAL OM 602RS
INSTRUMENT
DESCRIPTION.
2.1 DESCRIPTION
The OM 602RS type is a 4-digit panel display device for data from serial lines of RS 232 and RS 485 standard. Communication
with ASCII or MessBus protocol.
All ASCII symbols may be displayed which are usable for 7-segment display.
PROGRAMMABLE PROJECTION
Setting: input range - integer/float
Protocol: ASCII/MESSBUS
MODBUS - RTU*
PROFIBUS DP
Projection: -…
LINEARIZATION
Linearization: by linear interpolation in points (solely via OM Link)
DIGITAL FILTERS
Floating average: from… measurements
Exponen.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
*This protocol has separate instructions

USER MANUAL OM 602RS | 7
.
INSTRUMENT
DESCRIPTION
2.2 OPERATION
The instrument is set and controlled by five control keys located on the front panel. 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 CHANNge)
- 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
equipment of all instruments.
The operation program is freelyaccessible (www.orbit.merret.cz) and the onlyrequirement 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 232 or RS 485 (without the need
of the OML cable).
The program OM LINK in „Basic“ version will enableyou 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. It has a galvanic separation.
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 theirplace in applications where furtherevaluating or processing of measured data is required in external
devices. We offer UNIVER.ersal 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.

8 | USER MANUAL OM 602RS
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 andappliances.
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.
EXTERNAL INPUTS
DESCRIPTION CONTROL
EXT. According to setting in Menu
(see Menu > EXT. IN., page 46) upon contact, bracket (No. 14 and 15/16/17)
+
-
54
8 9 10
L
N POWER SUPPLY
E
1 2 3
11 12 13
5 6 7 14 15 16 17
IV V VI
III II I
L4
L3
L2 L1
EXT. 1 EXT. 3 EXT. 2
RxD/L+
TxD/L-
GND
AO-I
AO-U
GND
TxD
RxD
A B C D E F G H
Excitation
GND
+
-
L+
L-
RS 232
RS 485

USER MANUAL OM 602RS | 9
INSTRUMENT
CONNECTION .

10 | USER MANUAL OM 602RS
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)

USER MANUAL OM 602RS | 11
INSTRUMENT SETTING .
4.1 SETTING
The instrument is set and controlled by five control keys located on the front panel. 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 CHANNge)
- 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 freelyaccessible (www.orbit.merret.cz) and the only requirement is the purchase of OML cable to con-
nect the instrument to PC. It is manufactured in version RS 232 and USB 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).
User data protocol
12
Address
Data Stop
Start
Position Position Position
Signum
Position

12 | USER MANUAL OM 602RS
INSTRUMENT SETTING.
Setting and controlling the instrument is performed by means of 5 control keys located on the front panel. With the aid of these
keys it is possble to browse through the operation menu and to select and set 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
M. L1 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 30
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)
1T2M
4285.42
Ralay status
ON the digit is lit
OFF the digit is not lit
OFF the digit is flashing
limits withrestriction
(hysteresis, delay)
Function
M Min/max. value
T Tare
Measured value
the last two places may display
measuring units

USER MANUAL OM 602RS | 13
.INSTRUMENT SETTING
Control keys functions
Setting items into „USER“ menu
• inLIGHT 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 inUSER menu with the option of setting
SHOW item will be solely displayed in USER menu
KEY MEASUREMENT MENU SETTING NUMBERS/SELECTION
access 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
+numeric value is set to zero
+access into LIGHT menu
+access into PROFI menu
+configuration of an item for
“USER” menu
+determine the sequence of items in
“USER - LIGHT” menu
USER


--- +NO YES SHOW ---
return to item
legend is flashing - current setting is displayed

14 | USER MANUAL OM 602RS
MENU LIGHT.
SETTING
LIGHT
For traiNOd users
Only items NOcessary for instrument setting
Access is password protected
Possibility to arrange items of the USER MENU
LiNOar menu structure
Upondelayexceeding s the programming
mode is automatically discontinued and the
instrumentitselfrestoresthemeasuringmode
!
Password “”
Menu LIGHT
USER menu off
Setting the items DEF
Preset from manufacture

USER MANUAL OM 602RS | 15
.MENU LIGHT
+
Option - Analog output
TY P . A . O. MIN . A.O . MAX. A. O. 1000I 20
Option - comparator
142. 8 PASS.0
Access password
LIM . L.1 20 LIM . L.2 40 LIM . L.3 60 LIM . L.4 80
Setting - Float
100. 0MAX.9F0.0MIN .9F
Setting - Float
Selection input range - min
0.0MIN . A
Selection input range - max
100. 0MAX. A
Setting - Integer Setting - Integer
0
MAX. 2
0MAX. 10MAX. 0
Setting - Integer Setting - Integer
100MAX. 3
0000.ooFO RM . A
Projection
Instrument address Data protocol
ASCIIPROT.0ADDR.9 . 6BAUD
Baud rate Commaand
0COMMA.
Setting - Integer Setting - Integer
0MIN . 20MIN .10MIN . 0
Setting - Integer Setting - Integer
0MAX. 3
MAX. 2
Setting - Request (REQUES.…REQ.) Setting - Communi. failure
DASHESMOD.T.O.0REQUES.3STO P 1
Setting - closing sequence Setting - Timeout
1.0TIMEOU.
Setting - Signum position Signum supression
YESPL.SUP.0SI .POS.49ADDR . 2
Setting - .address symbol Setting - Data position
0DA.POS.
Setting - .innitial sequence Setting - Adrress position
0AD .POS.0STA RT. 22STA RT .1
Setting - .innitial sequence Setting - .address symbol
48ADD R. 1
Return to measuring
mode
Identication
142. 8IDENT.YES OM602RS 65-0 01
Instrument type SW number
MENU LIGHT RE.SET.FIRM .
Menu type Return to manufacture setting
LANG.EN GL.
Language selection
PAS.LI.0
New password

16 | USER MANUAL OM 602RS
MENU LIGHT.
142. 8
PASS. 0 Entering access password
for access into the menu
PASS.Access into instrument
menu
PASS. = 
- access into menu is unrestricted, after releasing
keys you automaticaly move to first item of the
menu
PASS. > 
- access into menu is protected ny number code
Set “Password” = 42 Example
0 1 2 0212
42
22
32BAUD
BAUD Selection of transmission
rate of the data output
DEF = 9 600 Baud
BAUD
Selection of rate 57 600 > BAUD = 57.6 Example
ADDR.9.6 57 .638.419.2
0.6 1 .2 2.4 57 .6 11 5 .2 23 0 .4



USER MANUAL OM 602RS | 17
.MENU LIGHT


0
ADDR .Setting instrument address
DEF = 0
Setting instrument
address
ADDR .
Address 10 > ADDR. = 10 Example
01000PROT.
PROT.Selection of data protocol
DEF = ASCII
PROT.
Menu Description
ASCII Data protocol ASCII
M. BUS Data protocol DIM MessBus
MASTER
Instrument solicits data from subordinate system
- instrument controls data tansmission from subordinate system
- “COMMA.” may be used for selection of received data (for commands see data protocol)
- instrument asks  questions/s, if no response arrives within  sthe display shows “ - - - -“
SLAVE Passive display - slave is used where there is communication of other isntruments or a computer
in the “MASTER” mode. If “COMMA.” is correctlyreceived, the instrumetnswill display the data.
UNIVER.
UNIVER.ersal protocol
- in dynamic v dynamických items (Start, Adr-Un, Num Sign, Data, Stop, Request) cutom
protocol can be set up.
PROT.ASCII M . BUS MASTER SLAVE
Data protocol = ASCII > ASCII Example
COMMA.ASCII
UNIVER.

* subsequent item on the menu depends on
instrument setting

18 | USER MANUAL OM 602RS
MENU LIGHT.
COMMA.Setting - Command
DEF = uu (two spaces)
COMMA. > uu Example
MIN . 0
0Setting - Command
COMMA.
uu * subsequent item on the menu depends on
instrument setting
Ifis„COMMA.“„uu“(twospaces)is broadcast
query on data #AA<CR>.
Else #AA<<COMMA.>><CR> will wait on
confirmation „!AA“ and after it will send out
request about data #AA<CR>
!
MIN . 0 Selection integer input
range - min - MSB
- setting minimumvalue of input data, it is entered
by individual bytes in range …
- the input data format is sign integer  bits
- range:-…
(x…xFFFFFFF)
DEF = 0
Selection integer input range “integer” > MIN. 0 = 0 Example
0Selection of integer intput
range - min  

MIN . 0
0MIN .1



USER MANUAL OM 602RS | 19
MENU LIGHT .
MIN . 2 Selection integer input
range - min “integer”
- setting minimumvalue of input data, it is entered
by individual bytes in range …
- the input data format is sign integer  bits
- range:-…
(x…xFFFFFFF)
DEF = 0
MIN .1 Selection integer input
range - min “integer”
- setting minimumvalue of input data, it is entered
by individual bytes in range …
- the input data format is sign integer  bits
- range:-…
(x…xFFFFFFF)
DEF = 0
Selection integer input range “integer” > MIN.1 = 0 Example
0Selection of integer
intput range - min  

MIN .1
0MIN . 2
Selection integer input range “integer” > MIN. 2 = 0 Example
0Selection of integer intput
range - min  

MIN . 2
0MIN . 3

20 | USER MANUAL OM 602RS
MENU LIGHT.
MAX. 0 Selection of integer input
range - max - MSB
- settingmaximum valueof input data, itis entered
by individual bytes in range …
- the input data format is sign integer  bits
- range:-…
(x…xFFFFFFF)
DEF = 0
MIN . 3 Selection integer input
range - min “integer” - LSB
- setting minimumvalue of input data, it is entered
by individual bytes in range …
- the input data format is sign integer  bits
- range:-…
(x…xFFFFFFF)
DEF = 0
Selection integer input range “integer” > MIN.  =  Example
0Selection of integer intput
range - min  

MIN . 3
0MAX. 0
Selection integer input range “integer” > MAX.  =  Example
0Selection of integer intput
range - max  

MAX. 0
0MAX. 1