STS DTM.OCS.S Manuel utilisateur

Inhalt

Operating manual

Digital Transmitter DTM.OCS.S / DTM.OCS.S/N

Doc. No. 10.00.0430

Version: 01.11.2018

These operating instructions must be read by the operator before operation and installation!

Translation of the original operating manual

2 Doc-Nr. 10.00.0430

Operating manual Digital Transmitter DTM.OCS.S / DTM.OCS.S/N

Inhalt

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1Introduction ............................................................................6

1.1 Requirements/Basics.....................................................6

1.2 Abbreviations.................................................................6

1.3 Limitation of Liability ......................................................6

1.4 Copyright Protection ......................................................7

1.5 Spare Parts....................................................................7

1.6 Guarantee Provisions ....................................................7

1.7 Customer Service ..........................................................7

1.8 Registered Trademarks .................................................8

1.9 Reference Documentation.............................................8

2Safety ......................................................................................9

2.1 Intended Use..................................................................9

2.2 Explanation of Symbols .................................................9

3Product overview .................................................................10

4Commissioning of the Digital Transmitter ........................11

4.1 Unpacking....................................................................11

4.2 Safety Notes ................................................................11

4.3 Notes on Installation ....................................................11

4.4 Installation....................................................................12

5Communication with the DTM.OCS.S transmitter ............13

5.1 Summary......................................................................13

5.2 Physical interface.........................................................13

5.3 Software interface........................................................13

5.3.1 Modbus.........................................................13

5.3.2 General Modbus message frame structure..14

5.4 Modbus STS commands .............................................14

5.4.1 STS command structure...............................14

5.4.2 Sensor response ..........................................14

5.4.3 List of STS commands.................................15

5.4.3.1 MEASURE ....................................15

5.4.3.2 Supported pressure units..............17

5.4.3.3 Supported temperature units ........18

5.4.3.4 GETPROBE..................................18

5.4.4 STS Modbus commands under the

magnifying glass...........................................19

Operating manual Digital Transmitter DTM.OCS.S / DTM.OCS.S/N

Inhalt

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6Modbus standard commands .............................................21

6.1 Read pressure value (P)..............................................21

6.1.1 Command (Hex-Code, Function Code 4).....21

6.1.2 Interpretation start index 0: Measured

pressure value..............................................21

6.2 Read temperature-value (T).........................................21

6.2.1 Command (Hex-Code, Function Code 4).....21

6.2.2 Interpretation start index 1: Measured

temperature value.........................................21

6.3 Read pressure and temperature in one command ......22

6.3.1 Command (Hex-Code, Function Code 4).....22

6.4 Read maximum pressure (Nominal pressure, PMAX)....22

6.4.1 Command (Hex-Code, Function Code 3).....22

6.4.2 Interpretation start index 200+201:

Nominal pressure..........................................22

6.5 Read minimal pressure (Zero-point pressure, PMIN) ....23

6.5.1 Command (Hex-Code, Function Code 3):....23

6.5.2 Interpretation start index 202+203: Zero-

point pressure...............................................23

6.6 Read maximum temperature (end of temperature

range, TMAX)..................................................................24

6.6.1 Command (Hex-Code, Function Code 3).....24

6.6.2 Interpretation start index 204+205: End of

temperature range........................................24

6.7 Read minimal temperature (start of temperature

range, TMIN) ..................................................................24

6.7.1 Command (Hex-Code, Function Code 3).....24

6.7.2 Interpretation start index 206+207: Start of

temperature range........................................24

6.8 Read PMAX, PMIN, TMAX, TMIN together in one

command .....................................................................24

6.8.1 Command (Hex-Code, Function Code 3).....24

6.9 Change device’s Modbus address...............................25

6.9.1 Command (Hex-Code, Function Code 16)...25

6.10 Read serial number......................................................25

6.10.1 Command (Hex-Code, Function Code 3).....25

6.11 Read Firmware version................................................25

6.11.1 Command (Hex-Code, Function Code 4).....25

7Technical Data......................................................................27

8Maintenance..........................................................................28

8.1 Cleaning the Membrane...............................................28

8.2 Recalibration ................................................................28

8.3 Disposal .......................................................................28

Operating manual Digital Transmitter DTM.OCS.S / DTM.OCS.S/N

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9Troubleshooting...................................................................29

9.1 Error messages when using STS Modbus

commands ...................................................................29

9.2 Error messages when using Modbus standard

commands ...................................................................29

9.2.1 General.........................................................29

9.2.2 Exception codes...........................................29

10 Appendix...............................................................................30

10.1 Mapping of Modbus command codes..........................30

11 Revision history ...................................................................31

Index..............................................................................................32

Operating manual Digital Transmitter DTM.OCS.S / DTM.OCS.S/N

Introduction

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1 Introduction

1.1 Requirements/Basics

You need basic knowledge of Modbus.

1.2 Abbreviations

Abbreviation

Meaning

DTM

Digital Transmitter

OCS

Open Communication System

Pressure

PZP

Zero-point pressure

Nominal pressure

Temperature

Data word

Data byte

PDU

Protocol Data Unit

Tab. 1: Abbreviations

1.3 Limitation of Liability

All information and notes in these instructions have been put

together under consideration of the applicable standards and

provisions, the state of the art and our many years of insights and

experiences.

The manufacturer assumes no liability for damage due to:

Non-observation of these instructions

Non-intended use

Use of untrained staff

Unauthorized conversions

Technical changes

Use of unapproved spare and wear parts

The actual scope of delivery may deviate from the expectations

and illustrations here in special designs, utilization of additional

order options or due to the latest technical changes.

Apart from this, the obligations agreed on in the supply contract,

the general terms and conditions and the delivery conditions of the

manufacturer and the statutory rules applicable at the time of

conclusion of the contract shall apply.

Operating manual Digital Transmitter DTM.OCS.S / DTM.OCS.S/N

Introduction

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Warranty

The manufacturer guarantees for the function of the applied

process technology and the indicated performance parameters.

The warranty period shall commence at the time of delivery of the

device to the customer.

Components shall be excluded from the guarantee and claims for

defects if the damage has been caused by wear.

1.4 Copyright Protection

The operating instructions must not be provided to any third parties

without the written consent of the manufacturer.

NOTE!

The content, texts, drawings, pictures and other

illustrations are copyright-protected and subject to

the commercial property rights. Any abusive

utilization is punishable.

Reproductions of any kind and form - even in excerpts - as well as

use and/or disclosure of the contents shall not be permitted without

written declaration of the manufacturer.

1.5 Spare Parts

ATTENTION!

Wrong or defective spare parts may cause

damage, malfunction or total failure.

Therefore:

→Only use genuine spare parts of the

manufacturer.

Purchase spare parts through the authorized dealer or directly from

the manufacturer. Address on the reverse.

1.6 Guarantee Provisions

For guarantee provisions, see "General terms and conditions".

1.7 Customer Service

Our customer service will be available for technical information.

Information on the relevant contact can be provided by phone, fax,

email or online at all times; see manufacturer's address on the last

page.

Operating manual Digital Transmitter DTM.OCS.S / DTM.OCS.S/N

Introduction

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1.8 Registered Trademarks

Any brand and product names are registered trademarks of the

respective companies and organizations.

1.9 Reference Documentation

MODBUS over Serial Line, Specification & Implementation

Guide V1.0

http://www.modbus.org

Modbus Standard Library section

MODBUS Application Protocol Specification V1.1

http://www.modbus.org

Modbus Standard Library section

STS Website

http://www.stssensors.com

Datasheets and general product information

Operating manual Digital Transmitter DTM.OCS.S / DTM.OCS.S/N

Safety

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2 Safety

2.1 Intended Use

The intended use of the Digital Transmitter DTM.OCS.S and

DTM.OCS.S/N is the measuring of pressure and temperature

and the transmitting of the values in real time to the interface

RS485 using Modbus RTU protocol.

The use in acids / bases is only possible to a limited extent.

Application and medium compatibility must be coordinated with

STS before commissioning or when ordering.

Only use the device as intended.

All information in the operating instructions must be complied with.

The operator shall be solely liable for any damage at non-intended

use.

2.2 Explanation of Symbols

Warning Notes

Warning notes are marked with symbols in these operating

instructions. The notes are preceded by signal words that

express the scope of the danger.

Comply with the notes and act with caution to avoid accidents,

injury and property damage.

ATTENTION!

… indicates a potentially dangerous situation that

may cause slight or minor injury if not avoided.

CAUTION!

… indicates a potentially dangerous situation that

may cause property damage if not avoided.

Advice and Recommendations

NOTE!

… highlights useful advice and recommendations,

as well as information for efficient and interference-

free operation.

Operating manual Digital Transmitter DTM.OCS.S / DTM.OCS.S/N

Product overview

10 Doc-Nr. 10.00.0430

3 Product overview

Fig. 1: Product overview Digital Transmitter DTM.OCS.S

1 Operating and safety instructions

2 Digital Transmitter

The operating manual can be downloaded from the STS

homepage.

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