NIVELCO MultiCONT Owner's manual

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Manufacturer:
H-1043 Budapest, Dugonics u. 11.
Tel.: [phone] Fax: [phone]
sales
NIVELCO Process Control Co.
E-mail: @nivelco.com www.nivelco.com
MultiCONT

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TABLE OF CONTENTS
1. INTRODUCTION.............................................................................................. 5
1.1. THE HART SYSTEM .................................................................................. 6
1.1.1. The Communication .......................................................................................... 6
1.1.2. The structure of the system............................................................................... 6
1.1.2.1 Point-to-point connection ...................................................................... 7
1.1.2.2 Multipoint connection (Multidrop). Multiple slaves connected in parallel.8
1.1.3. Properties of HART-capable devices ................................................................ 9
1.1.4. HART Command set ......................................................................................... 9
1.1.4.1 Universal commands .......................................................................... 10
1.1.4.2 General commands............................................................................. 11
1.1.4.3 Device –specific commands ............................................................... 11
2. TECHNICAL DATA........................................................................................ 12
2.1. ACCESSORIES......................................................................................... 13
3. ORDER CODE ............................................................................................... 14
3.1. DIMENSIONS............................................................................................ 15
3.2. CONDITIONS OF USE OF THE EX UNITS ....................................................... 16
4. ELECTRICAL CONNECTION ....................................................................... 17
4.1. ARRANGEMENT OF THE CABLE TERMINALS ............................................... 17
4.1.1. Four relays version.......................................................................................... 17
4.1.2. Five relays version .......................................................................................... 17
4.2. WIRING................................................................................................... 19
4.2.1. Wiring .............................................................................................................. 19
4.2.1.1 Wiring of 2-wire units (transmitters) .................................................... 19
4.2.1.2 Wiring of 4-wire units (transmitters with separate power supply)........ 20
4.2.1.3 Wiring of Combined Systems (containing both 2- and 4-wire
transmitters) ....................................................................................................... 21
4.2.2. Wiring of Universal Interface Modules (PJK-100)............................................ 22
5. PROGRAMMING OF MultiCONT.................................................................. 23
5.1. STEPS OF PROGRAMMING......................................................................... 24
5.1.1. Scrolling and selecting menu items................................................................. 25
5.1.2. Activation (of devices, relays and current outputs) selection (of language,
operation mode, etc.) ...................................................................................... 26
5.1.3. Assignment of outputs (relay and current) to the device ................................. 27
5.1.4. Entering parameter values .............................................................................. 28
5.1.5. Editing character variables (e.g. Short TAG)................................................... 29
5.2. STEPS OF PUTTING INTO OPERATION A MultiCONT NETWORK................... 29
5.2.1. Preparation of the Transmitters and the Universal Interface Modules. ............30
5.2.1.1 Preparation of the Transmitters...........................................................30
5.2.1.2 Preparing of the Universal Interface Modules......................................31
5.2.2. Wiring...............................................................................................................31
5.2.3. Putting the MultiCONT into operation ..............................................................32
5.3. MAIN MENU............................................................................................. 33
5.4. MultiCONT CONFIGURATION................................................................... 34
5.4.1. DEV detect:......................................................................................................35
5.4.2. EXT detect: ......................................................................................................40
5.4.3. Main Display: ...................................................................................................40
5.4.3.1 Source .................................................................................................41
5.4.3.2 Rounding .............................................................................................42
5.4.3.3 Stepping ..............................................................................................42
5.4.4. List display .......................................................................................................43
5.4.5. User Display:....................................................................................................44
5.4.5.1 Editing the user display .......................................................................44
5.4.5.2 The resulted user displays...................................................................45
5.4.6. HART ...............................................................................................................46
5.4.6.1 MultiCONT Short TAG.........................................................................46
5.4.6.2 Polling Address....................................................................................47
5.4.6.3 Message..............................................................................................47
5.4.6.4 Description...........................................................................................47
5.4.6.5 Date.....................................................................................................48
5.4.6.6 Command Set......................................................................................48
5.4.7. USER RS485...................................................................................................51
5.4.8. Data Logger .....................................................................................................51
5.4.8.1 Trend logger ........................................................................................53
5.4.8.2 Time-window TOT (Total flow logging)................................................55
5.4.8.3 Time-window FM (Flow Maximum logging) .........................................55
5.4.8.4 Using a memory card for logging.........................................................56
5.4.8.5 File system of the SD card and file content of a logging entry.............58
5.4.9. Secret code......................................................................................................62
5.4.10. Language.........................................................................................................63
5.4.11. Background lighting .........................................................................................63
5.4.12. Report: .............................................................................................................64

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5.4.13. Prog CS........................................................................................................... 64
5.5. PROGRAMMING DEVICES.......................................................................... 65
5.6. REMOTE PROGRAMMING .......................................................................... 66
5.6.1. Editing the linearisation table .......................................................................... 68
5.7. RELAY CONFIGURATION........................................................................... 69
5.7.1. Relay Selection ............................................................................................... 69
5.7.2. Properties of the selected relay....................................................................... 70
5.7.3. Relay programming......................................................................................... 71
5.7.3.1 Source selection ................................................................................. 71
5.7.3.2 Function.............................................................................................. 72
5.7.3.3 Configuring parameters ...................................................................... 80
5.7.3.4 Invert................................................................................................... 81
5.7.3.5 Deleting TOT ...................................................................................... 81
5.7.3.6 Refreshing TOT .................................................................................. 82
5.7.3.7 Testing................................................................................................ 82
5.8. OPERATION AND PARAMETERS OF CURRENT OUTPUTS .............................. 84
5.8.1. Selection of Current outputs............................................................................ 84
5.8.2. Properties of the selected Current Output....................................................... 85
5.8.3. Current Output programming .......................................................................... 85
5.8.3.1 Source selection ................................................................................. 85
5.8.3.2 Function.............................................................................................. 86
5.8.3.3 Parameter configuration ..................................................................... 87
5.8.3.4 Testing................................................................................................ 87
5.9. THE BOOT PROCESS ............................................................................... 88
5.10. MEASUREMENT MODES ........................................................................... 90
5.11. SAVING,LOADING THE CONFIGURATION OF THE MULTICONT..................... 91
6. ERROR CODES............................................................................................. 92
7. HARDWARE PROTECTION OF THE SETTINGS ........................................ 94
8. FUSE REPLACEMENT ................................................................................. 95
9. SERVICING.................................................................................................... 96
9.1. BOX MESSAGES:..................................................................................... 96
9.2. OTHER MESSAGES:................................................................................. 97
9.3. TROUBLESHOOTING................................................................................. 98
9.3.1. It is impossible to enter the „Main menu”/”Relays” or „Main menu”/„Current
outputs” menu: ................................................................................................ 98
9.3.2. It is impossible to enter the „Main menu”/”Devices” menu: ............................. 98
9.3.3. A „Please wait” message appears upon selecting „DEV detect”.................... 98
9.3.4. The result of „DEV detect” is the „No device” message .................................. 98
9.3.5. The unit does not start up when switched on ..................................................98
9.3.6. The „Response” error entry is too frequent......................................................98
9.4. ADDITIONAL INFORMATION ........................................................................99
9.4.1. Problems that may occur during remote programming:...................................99
9.4.2. MultiCONT transmits the parameters without examining them, and the testing is
done by the device...........................................................................................99
9.4.3. Use of Second HART Master ( Hand-Held or HART modem + Eview
configuration software) ....................................................................................99
9.4.4. Upon exiting remote programming, the unit tests to see if the transmitter really
exited the remote programming mode.............................................................99
9.4.5. When a transmitter does not respond, then „Response” error is entered into the
table, but upon termination of the error (the device responds), this entry is
automatically cleared from the table (and does not need to be acknowledged)99
9.4.6. Upon exiting the menu, MultiCONT immediately saves the modifications.......99
9.4.7. The error list is cleared when the device is put off...........................................99
Appendix 1. ManufacturerID codes of HART-capable devices 100
Appendix 2. The menu system of the MultiCONT P-200 101-102
Appendix 3. Relay programming 103
Appendix 4. Current output programming 104
Appendix 5. Measurement mode 105

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Thank you for choosing a NIVELCO instrument.
We are sure that you will be satisfied throughout its use!
1. INTRODUCTION
The MultiCONT unit is a universal interface between NIVELCO’s HART-capable intelligent level transmitters and the other elements of the process control system
like the PC-s , PLC-s, displays and the actuators. Besides its role as an interface, the MultiCONT ensures the powering of the 2-wire transmitters while being capable
of complex control tasks. The MultiCONT unit supports communication with a maximum of 15 standard or 4 Ex certified NIVELCO’s HART-capable 2- and / or 4-wire
transmitters. If MultiCONT is used with NIVELCO’s MicroTREK microwave level transmitters the maximum number of transmitters in a loop should not exceed 8 pcs.
for normal transmitters and 2 pcs. for Ex version transmitters. If a system contain more transmitters than one MultiCONT can handle, further MultiCONT units can be
wired in series via an RS485 line. Remote programming of the transmitters and downloading of the parameters and measured data is possible using the MultiCONT.
The various outputs such as 4 … 20 mA, relays and digital outputs can be controlled using measured values and new values calculated from the measured values.
Measured values (Primary Value and three additional values) are able to be logged.
Large DOT matrix LCD panel facilitate a wide variety of display functions including tank content visualisation. The type and number of outputs of the basic unit can be
expanded with external (relay and/or current output) PJK-100 type Universal Interface Modules. The total number of relays included in the MultiCONT and in the
modules must not be more than 64, while that of the analog outputs (4…20 mA outputs) can be maximum 16. A further restriction is that there can be a maximum of
32 Universal Interface Modules.
Explosion proof certified versions of the MultiCONT should be installed outside the hazardous area.

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1.1. THE HART SYSTEM
The HART (Highway Addressable Remote Transducer – bus addressable field devices) is a digital communication protocol developed by ROSEMOUNT for industrial
measurement applications. A digital signal of small amplitude is placed on the widely used standard 4…20mA output current, and due to its symmetric sinusoidal
nature and its small amplitude, it does not affect the accuracy of the output current. Since no extra cable is needed for signal transfer, the already existing cable can
be used to realize the transfer. The identification, programming and querying of the transmitters can be done using this communication.
This diagram shows the output signal of a
4…20mA transmitter (device) and the
superimposed HART signal, which is essentially a
0.5 mA modulation of the output current..
t
I
out
[mA]
20 mA
4 mA
1
I
o
+ 0.5 mA
I
o
I
o
– 0.5 mA
0
The enlarged picture shows that HART
communication uses frequency modulation, and
logical „1” is assigned to 1200 Hz, while „0” is
assigned to 2200 Hz. This is called FSK
(Frequency-Shift Keying) modulation. The
communication is realized with systematic series
of impulses above described.
1.1.1. The Communication
The HART communication is basically a master-slave type, which means that the transmitter – slave – only sends a response when the master (of which there can be
only one in the system) sends a query. The master can be a Hand-held Communicator, a PC with a HART modem or a universal interface, in this case, a MultiCONT
(naturally, only one can be active). The communication uses standard commands (see chapter 1.1.3)
1.1.2. The structure of the system
The system must contain a 230..1000 resistor to guarantee that the HART signal of small amplitude will not load the power supply of unknown output impedance.

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1.1.2.1 Point-to-point connection
When a master (communicator or HART modem with PC or MultiCONT) and a slave are alone in a system, we talk of a point-to-point connection
Transmitter
I+
I–
SH
L+
L–
MultiCONT
250 
+Us
Universal interface
RS485
In this case the flowing current is the output current of the transmitters, so if permitted by the loop voltage, even a local indicator can be included into the loop.
Essentially, the minimal voltage specified in the manual must be kept on the terminals of the transmitters.
Since the speed of transfer is 1200bit/sec, communication is slow, because the master queries and the slave responds. This can be speeded up if the querying is left
out, and the slave responds continuously every given period of time until the master stops the transfer in the break between 2 data transmissions. This is called “burst
mode”.

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1.1.2.2 Multipoint connection (Multidrop). Multiple slaves connected in parallel.
HART’s addressing system can handle 15 devices whereby they are wired in parallel. In this case, the current is the sum of the currents of all the devices in the loop,
which has not informative value. So in this case, the output current of the transmitters should be set to multidrop mode, which means a constant current of 4mA. This
automatically happens when the polling address is set between 1..15. (if the polling address is 0, then we should have only one transmitter with 4…20mA output, if
the polling address is 1…15, then we will have a constant 4 mA). There is a deviation possibility for transmitters whose output current can be programmed to an
arbitrary fixed value, however in this case, the minimal voltage drop on the terminal of the transmitters must be the minimum specified voltage, otherwise the
transmitter(s) will not be able to work (measure or respond)
T 1ransmitter
Transmitter 2
T 3ransmitter
T 15ransmitter
I+
I–
SH
L+
L–
MultiCONT
250 
+Us
....
Universal interface
RS485
820  *
In a Multidrop system, the „burst mode” does not work
* An 820 ohm resistor should be connected between the L- and SH terminals of the Ex version MultiCONT when it is used with the 3 (max. allowed) Ex version
MicroTREK microwave level transmitter.

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1.1.3. Properties of HART-capable devices
These are programmed into the unit during manufacturing, some can be configured using a HART MASTER, others cannot (they can be reconfigured only by the
manufacturer)
Short TAG 8 character device ID. Can be reconfigured.
Short address Used to differentiate the 0…15 devices. There cannot be 2 identical „short addresses” in one system. Can be reconfigured
Message A max 32-character arbitrary comment that can be assigned to the device and is generally operation-related.
Can be reconfigured
Descriptor A max 16-character arbitrary comment that can be assigned to the device and is generally material-related.
Can be reconfigured
Date Date. Can be assigned to the device. Can be reconfigured
Factory ID Factory ID. For NIVELCO devices: 151, cannot be reconfigured
Device type ID Device type ID, cannot be reconfigured
Device ID The manufacturer’s electronic production number, cannot be reconfigured
The Factory ID, the Device Type ID and the Device ID together form the “Long Address”.
SW version ( Software version ): Software version of the device (see device manual)
HW version ( Hardware version ): Hardware version of the device (see device manual)
Apart from this, they provide the specification of the HART version according to which the device’s commands work
1.1.4. HART Command set
We have seen how to build up a HART system. Using the HART commands, we can decide what the devices should do. Naturally, an ultrasonic transmitter needs
commands different from those of a temperature transmitter or maybe a valve, so quite a large number of commands would be needed. Every command has a one-
byte identifier. The 31st command enables expansion, and in this case the next 2 bytes form the code of a command (0…65535). HART commands can be divided in
to 3 classes:
universal commands 0..30
general commands 32..121
device-specific commands 128..253
In all cases, the commands contain an address (this can be short, long address, TAG), which determines the corresponding device.
Two devices with the same address cannot be connected together!!

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1.1.4.1 Universal commands
These are commands understood by all devices, and to which all devices give the same reply.
0. Read unique identifier
the addressed device provides the following in it’s reply:
Manufacturer’s code (provided by the HART foundation, see appendix)
Product code (provided by manufacturer, see chapter 5.2.1.1)
Universal command table code ( HART 5 )
Device ID
Software version
Hardware version
Device status
1. Read primary variable
This reads the digital value (Primary Value) that the transmitter sends to the 4…20 mA output.
The unit also belongs to the numeric value.
2. Read output current in mA and in percent of range
3. Read output current and four dynamic variables
The primary, secondary, tertiary and quaternary variables are transmitted.
The secondary, tertiary and quaternary variables are specified in the manual of the given device.
6. Modify (short) polling address (Write polling address)
If there is more than one device in the loop (multidrop), each device must have a different address.
In this case, the address should be configured before connecting the device to avoid errors caused by devices with the same addresses replying at the same
time.
11. Read unique device identifier associated with tag
Devices are queried based on their short TAG and not based on their addresses.
As a result, there must not be more than one device with exactly the same short TAG.