Vega VEGAPULS C 21 User manual

Operating Instructions
Radar sensor for continuous level
measurement
VEGAPULS C 21
Modbus and Levelmaster protocol
Document ID: 58343

2
Contents
VEGAPULS C 21 • Modbus and Levelmaster protocol
58343-EN-191014
Contents
1 About this document ............................................................................................................... 4
1.1 Function ........................................................................................................................... 4
1.2 Target group ..................................................................................................................... 4
1.3 Symbols used................................................................................................................... 4
2 For your safety ......................................................................................................................... 5
2.1 Authorised personnel ....................................................................................................... 5
2.2 Appropriate use................................................................................................................ 5
2.3 Warning about incorrect use............................................................................................. 5
2.4 General safety instructions............................................................................................... 5
2.5 EU conformity................................................................................................................... 6
2.6 Installation and operation in the USA and Canada ........................................................... 6
2.7 Safety instructions for Ex areas ........................................................................................ 6
3 Product description ................................................................................................................. 7
3.1 Conguration.................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 8
3.3 Adjustment ....................................................................................................................... 8
3.4 Packaging, transport and storage..................................................................................... 9
3.5 Accessories.................................................................................................................... 10
4 Mounting................................................................................................................................. 11
4.1 General instructions ....................................................................................................... 11
4.2 Mounting versions.......................................................................................................... 11
4.3 Mounting instructions ..................................................................................................... 11
4.4 Measurement setup - Flow............................................................................................. 15
5 Connecting to power supply................................................................................................. 17
5.1 Preparing the connection ............................................................................................... 17
5.2 Wiring plan ..................................................................................................................... 17
6 Access protection.................................................................................................................. 18
6.1 Bluetooth radio interface ................................................................................................ 18
6.2 Protection of the parameterization.................................................................................. 18
7 Setup with smartphone/tablet (Bluetooth).......................................................................... 20
7.1 Preparations................................................................................................................... 20
7.2 Connecting..................................................................................................................... 20
7.3 Parameter adjustment .................................................................................................... 21
8 Setup with PC/notebook (Bluetooth)................................................................................... 22
8.1 Preparations................................................................................................................... 22
8.2 Connecting..................................................................................................................... 22
8.3 Parameter adjustment .................................................................................................... 23
9 Setup with PC/notebook (interface adapter) ...................................................................... 24
9.1 Connect the PC.............................................................................................................. 24
9.2 Parameter adjustment with PACTware............................................................................ 24
9.3 Saving the parameterisation data................................................................................... 25
10 Menu overview ....................................................................................................................... 26
11 Diagnostics and servicing .................................................................................................... 28

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Contents
VEGAPULS C 21 • Modbus and Levelmaster protocol
58343-EN-191014
11.1 Maintenance .................................................................................................................. 28
11.2 Rectify faults................................................................................................................... 28
11.3 Status messages according to NE 107 .......................................................................... 29
11.4 Treatment of measurement errors .................................................................................. 31
11.5 Software update ............................................................................................................. 34
11.6 How to proceed if a repair is necessary.......................................................................... 34
12 Dismount................................................................................................................................. 35
12.1 Dismounting steps.......................................................................................................... 35
12.2 Disposal ......................................................................................................................... 35
13 Certicatesandapprovals.................................................................................................... 36
13.1 Environmental instructions ............................................................................................. 36
14 Supplement ............................................................................................................................ 37
14.1 Technical data ................................................................................................................ 37
14.2 Basics Modbus............................................................................................................... 40
14.3 Modbus register ............................................................................................................. 42
14.4 Modbus RTU commands ............................................................................................... 44
14.5 Levelmaster commands ................................................................................................. 47
14.6 CongurationoftypicalModbushosts ........................................................................... 50
14.7 Dimensions .................................................................................................................... 53
14.8 Industrial property rights................................................................................................. 54
14.9 Hash function acc. to mbed TLS..................................................................................... 54
14.10 Trademark ...................................................................................................................... 54
Editing status: 2019-10-10

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1 About this document
VEGAPULS C 21 • Modbus and Levelmaster protocol
58343-EN-191014
1 About this document
1.1 Function
This instruction provides all the information you need for mounting,
connection and setup as well as important instructions for mainte-
nance,faultrectication,theexchangeofpartsandthesafetyofthe
user. Please read this information before putting the instrument into
operation and keep this manual accessible in the immediate vicinity
of the device.
1.2 Target group
This operating instructions manual is directed to trained personnel.
Thecontentsofthismanualmustbemadeavailabletothequalied
personnel and implemented.
1.3 Symbols used
Document ID
This symbol on the front page of this instruction refers to the Docu-
ment ID. By entering the Document ID on www.vega.com you will
reach the document download.
Information, note, tip: This symbol indicates helpful additional infor-
mation and tips for successful work.
Note: This symbol indicates notes to prevent failures, malfunctions,
damage to devices or plants.
Caution: Non-observance of the information marked with this symbol
may result in personal injury.
Warning: Non-observance of the information marked with this symbol
may result in serious or fatal personal injury.
Danger: Non-observance of the information marked with this symbol
results in serious or fatal personal injury.
Ex applications
This symbol indicates special instructions for Ex applications.
• List
The dot set in front indicates a list with no implied sequence.
1 Sequence of actions
Numbers set in front indicate successive steps in a procedure.
Battery disposal
This symbol indicates special information about the disposal of bat-
teries and accumulators.

5
2 For your safety
VEGAPULS C 21 • Modbus and Levelmaster protocol
58343-EN-191014
2 For your safety
2.1 Authorised personnel
All operations described in this documentation must be carried out
onlybytrained,qualiedpersonnelauthorisedbytheplantoperator.
During work on and with the device, the required personal protective
equipment must always be worn.
2.2 Appropriate use
VEGAPULS C 21 is a sensor for continuous level measurement.
Youcannddetailedinformationabouttheareaofapplicationin
chapter "Product description".
Operational reliability is ensured only if the instrument is properly
usedaccordingtothespecicationsintheoperatinginstructions
manual as well as possible supplementary instructions.
2.3 Warning about incorrect use
Inappropriate or incorrect use of this product can give rise to applica-
tion-specichazards,e.g.vesseloverllthroughincorrectmounting
or adjustment. Damage to property and persons or environmental
contamination can result. Also, the protective characteristics of the
instrument can be impaired.
2.4 General safety instructions
This is a state-of-the-art instrument complying with all prevailing
regulations and directives.The instrument must only be operated in a
technicallyawlessandreliablecondition.Theoperatorisresponsi-
ble for the trouble-free operation of the instrument. When measuring
aggressive or corrosive media that can cause a dangerous situation
if the instrument malfunctions, the operator has to implement suitable
measures to make sure the instrument is functioning properly.
During the entire duration of use, the user is obliged to determine the
compliance of the necessary occupational safety measures with the
current valid rules and regulations and also take note of new regula-
tions.
The safety instructions in this operating instructions manual, the na-
tional installation standards as well as the valid safety regulations and
accident prevention rules must be observed by the user.
For safety and warranty reasons, any invasive work on the device
beyond that described in the operating instructions manual may be
carried out only by personnel authorised by the manufacturer. Arbi-
traryconversionsormodicationsareexplicitlyforbidden.Forsafety
reasons,onlytheaccessoryspeciedbythemanufacturermustbe
used.
To avoid any danger, the safety approval markings and safety tips on
the device must also be observed.
The low transmitting power of the radar sensor is far below the inter-
nationally approved limits. No health impairments are to be expected

6
2 For your safety
VEGAPULS C 21 • Modbus and Levelmaster protocol
58343-EN-191014
with intended use.The band range of the transmission frequency can
be found in chapter "Technical data".
2.5 EU conformity
ThedevicefullsthelegalrequirementsoftheapplicableEUdirec-
tives.ByaxingtheCEmarking,weconrmtheconformityofthe
instrument with these directives.
The EU conformity declaration can be found on our homepage.
2.6 Installation and operation in the USA and
Canada
This information is only valid for USA and Canada. Hence the follow-
ing text is only available in the English language.
Installations in the US shall comply with the relevant requirements of
the National Electrical Code (ANSI/NFPA 70).
Installations in Canada shall comply with the relevant requirements of
the Canadian Electrical Code
A Class 2 power supply unit has to be used for the installation in the
USA and Canada.
2.7 Safety instructions for Ex areas
For Ex applications, only devices with corresponding Ex approval may
beused.ObservetheEx-specicsafetyinstructions.Thesearean
integral part of the operating instructions and are enclosed with every
device with Ex approval.

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3 Product description
VEGAPULS C 21 • Modbus and Levelmaster protocol
58343-EN-191014
3 Product description
3.1 Conguration
The scope of delivery encompasses:
• VEGAPULS C 21 radar sensor
• Information sheet "Documents and software" with:
– Instrument serial number
– QR code with link for direct scanning
• Information sheet "PINs and Codes" with:
– Bluetooth access code
– DataMatrix code with link for direct scanning
• Information sheet "Emergency unlock codes" with:
– Bluetooth access code
– Bluetooth unlock code
– Device unlock code
Note:
Optional instrument features are also described in this operating
instructions manual.The respective scope of delivery results from the
orderspecication.
This operating instructions manual applies to the following instrument
versions:
• Hardware version from 1.0.0
• Software version from 1.0.0
3
4
5
1
2
Fig. 1: Components of VEGAPULS C 21
1 Radar antenna
2 Processtting
3 Electronics housing
4 Mounting thread
5 Connection cable
Youcanndthetypelabelonthesensorhousingaswellasonthe
type label support on the connection cable.
Thetypelabelcontainsthemostimportantdataforidenticationand
use of the instrument.
Scope of delivery
Scope of this operating
instructions
Constituent parts
Type label

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3 Product description
VEGAPULS C 21 • Modbus and Levelmaster protocol
58343-EN-191014
0044
12...35V 4...20mA HART
4
123456
TA G1234
1
5
6
2
3
2019
www.vega.com
D-7776 1 SCHILTACH,
Made in Germany
VEGAPULS C 2. s/n 12345678
15mIP66/IP68, TYPE 6P
MWP 3bar (300kPa)
PVDF
Fig. 2: Layout of the type label (example)
1 Instrument type
2 Field for approvals
3 Technical data
4 Number or DataMatrix code for Bluetooth access
5 QR code for device documentation
6 Serial number
Move to "www.vega.com"andenterinthesearcheldtheserial
number of your instrument.
Thereyoucanndthefollowinginformationabouttheinstrument:
• Order data
• Documentation
• Software
Alternatively,youcanndallviayoursmartphone:
• Scan the QR-code on the type label of the device or
• Enter serial number manually in the VEGA Tools app (available
free of charge in the respective stores)
3.2 Principle of operation
VEGAPULS C 21 is a radar sensor for continuous level measurement.
It is suitable for liquids and solids in virtually all industries, particularly
in the water and waste water industry.
The instrument emits a continuous, frequency-modulated radar signal
throughitsantenna.Theemittedsignalisreectedbythemedium
andreceivedbytheantennaasanechowithmodiedfrequency.The
frequency change is proportional to the distance and is converted into
thellingheight.
3.3 Adjustment
Devices with integrated Bluetooth module can be adjusted wirelessly
via standard adjustment tools:
• Smartphone/tablet (iOS or Android operating system)
• PC/notebook with Bluetooth USB adapter (Windows operating
system)
Documents and software
Application area
Functional principle
Wireless adjustment

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3 Product description
VEGAPULS C 21 • Modbus and Levelmaster protocol
58343-EN-191014
13
2
Fig. 3: Wireless connection to standard operating devices with integrated
Bluetooth LE
1 Sensor
2 Smartphone/Tablet
3 PC/Notebook
The adjustment via the signal cable is carried out via an RS 485/USB
interface adapter and a PC/notebook using DTM/PACTware.
RS485
USB
1
2
3
4
5
Fig. 4: Connecting the PC to the signal cable
1 Interface adapter RS 485/USB adapter
2 USB cable to the PC
3 RS 485 cable
4 Sensor
5 Voltage supply
3.4 Packaging, transport and storage
Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
based on ISO 4180.
The packaging consists of environment-friendly, recyclable card-
board. For special versions, PE foam or PE foil is also used. Dispose
of the packaging material via specialised recycling companies.
Transport must be carried out in due consideration of the notes on the
transport packaging. Nonobservance of these instructions can cause
damage to the device.
Adjustment via the signal
cable
Packaging
T
ransport

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3 Product description
VEGAPULS C 21 • Modbus and Levelmaster protocol
58343-EN-191014
The delivery must be checked for completeness and possible transit
damage immediately at receipt. Ascertained transit damage or con-
cealed defects must be appropriately dealt with.
Up to the time of installation, the packages must be left closed and
stored according to the orientation and storage markings on the
outside.
Unless otherwise indicated, the packages must be stored only under
the following conditions:
• Not in the open
• Dry and dust free
• Not exposed to corrosive media
• Protected against solar radiation
• Avoiding mechanical shock and vibration
The permissible storage and transport temperatures can be found in
chapter "Supplement - Technical data - Ambient conditions"
3.5 Accessories
Screwedangesareavailableindierentversionsaccordingtothe
following standards: DIN 2501, EN 1092-1, BS 10, ASME B 16.5,
JIS B 2210-1984, GOST 12821-80.
Welded sockets are used to connect the sensors to the process.
Threaded adapters enable simple adaptation of sensors with stand-
ardthreadedttings,e.g.toprocess-sidehygieneconnections.
The mounting accessories include e.g. bracket and mounting bracket
and are used for stable mounting of the sensor at the measuring
point.The parts are available in various versions and sizes.
Transport inspection
Storage
Storage and transport
temperature
Flanges
Welded sockets and
adapters
Mounting accessories