Siemens SITRANS TH400 User manual

Operating Instructions Edition 02/2007
Temperature Transmitter
SITRANS TH400
7NG3214 SITRANS TH400 with PROFIBUS PA
7NG3215 SITRANS TH400 with FOUNDATION Fieldbus
sitrans

Introduction
1
General safety notes
2
Description
3
Assembly
4
Connecting
5
Functions
6
Service and maintenance
7
Technical data
8
Dimension drawings
9
SITRANS T
Temperature transmitter
SITRANS TH400
Operating Instructions
02/2007
A5E01018688-01
7NG3214 SITRANS TH400 with PROFIBUS PA
7NG3215 SITRANS TH400 with FOUNDATION fieldbus

Safety Guidelines
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
Danger
indicates that death or severe personal injury will result if proper precautions are not taken.
Warning
indicates that death or severe personal injury may result if proper precautions are not taken.
Caution
with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.
Caution
without a safety alert symbol, indicates that property damage can result if proper precautions are not taken.
Notice
indicates that an unintended result or situation can occur if the corresponding information is not taken into
account.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The device/system may only be set up and used in conjunction with this documentation. Commissioning and
operation of a device/system may only be performed by qualified personnel. Within the context of the safety notes
in this documentation qualified persons are defined as persons who are authorized to commission, ground and
label devices, systems and circuits in accordance with established safety practices and standards.
Prescribed Usage
Note the following:
Warning
This device may only be used for the applications described in the catalog or the technical description and only
in connection with devices or components from other manufacturers which have been approved or
recommended by Siemens. Correct, reliable operation of the product requires proper transport, storage,
positioning and assembly as well as careful operation and maintenance.
Trademarks
All names identified by ® are registered trademarks of the Siemens AG. The remaining trademarks in this
publication may be trademarks whose use by third parties for their own purposes could violate the rights of the
owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.
Siemens AG
Automation and Drives
Postfach 48 48
90437 NÜRNBERG
GERMANY
A5E01018688-01
Ⓟ 02/2007
Copyright © Siemens AG 2007.
Technical data subject to change

SITRANS TH400
Operating Instructions, 02/2007, A5E01018688-01 5
Table of contents
1 Introduction................................................................................................................................................ 7
1.1 Purpose of this documentation ......................................................................................................7
1.2 History............................................................................................................................................7
1.3 Further information.........................................................................................................................8
2 General safety notes.................................................................................................................................. 9
2.1 General information .......................................................................................................................9
2.2 Correct usage.................................................................................................................................9
2.3 Laws and directives .......................................................................................................................9
2.4 Measures .....................................................................................................................................10
2.5 Qualified Personnel......................................................................................................................11
3 Description............................................................................................................................................... 13
3.1 Summary......................................................................................................................................13
3.2 Application range .........................................................................................................................13
3.3 Product features...........................................................................................................................13
3.4 Type plate structure .....................................................................................................................14
3.5 Mode of operation ........................................................................................................................15
3.6 System communication................................................................................................................16
4 Assembly................................................................................................................................................. 17
5 Connecting .............................................................................................................................................. 19
5.1 Bus installation.............................................................................................................................19
5.2 General connection notes............................................................................................................20
5.3 Connection in hazardous zones with explosive atmospheres .....................................................21
5.4 Connection assignments..............................................................................................................23
5.5 Options for sensor connection assignments................................................................................24
6 Functions................................................................................................................................................. 27
6.1 Summary......................................................................................................................................27
6.2 Device address ............................................................................................................................27
6.2.1 SITRANS TH400 PROFIBUS PA ................................................................................................27
6.2.2 SITRANS TH400 FOUNDATION field bus ..................................................................................28
6.3 Device delivery condition .............................................................................................................29
6.4 Simulation mode ..........................................................................................................................30
6.4.1 Simulation mode in PROFIBUS PA .............................................................................................30
6.4.2 Simulation mode with FOUNDATION fieldbus ............................................................................30

Table of contents
SITRANS TH400
6 Operating Instructions, 02/2007, A5E01018688-01
7 Service and maintenance ........................................................................................................................ 31
8 Technical data ......................................................................................................................................... 33
9 Dimension drawings ................................................................................................................................ 41
Index........................................................................................................................................................ 43

SITRANS TH400
Operating Instructions, 02/2007, A5E01018688-01 7
Introduction 1
1.1 Purpose of this documentation
These instructions contain all the information you need for commissioning and using the
device.
It is aimed both at persons mechanically installing the device, connecting it electronically,
configuring the parameters and commissioning it as well as service and maintenance
engineers.
1.2 History
This history establishes the correlation between the current documentation and the valid
firmware of the device.
The documentation of this edition is applicable for the following firmware variants:
Edition Firmware identification type
plate
System integration Installation path for PDM
PROFIBUS PA version:
01
02/2007
FW: V2.03 PDM V6.0
DD rev. 1.00
SITRANS TH400
FOUNDATION fieldbus version:
01
02/2007
FW: V2.03 Standard fieldbus
compatible control
systems
Not relevant.
The most important changes in the documentation when compared with the respective
previous edition are given in the following table.
Edition Remarks
01
02/2007
First edition

Introduction
1.3 Further information
SITRANS TH400
8 Operating Instructions, 02/2007, A5E01018688-01
1.3 Further information
Information
The contents of these instructions shall not become part of or modify any prior or existing
agreement, commitment or legal relationship. All obligations on the part of Siemens AG are
contained in the respective sales contract which also contains the complete and solely
applicable warranty conditions. Any statements contained herein do not create new
warranties or modify the existing warranty.
The content reflects the technical status at the time of printing. We reserve the right to make
technical changes in the course of further development.
Worldwide contact person
If you need more information or have particular problems which are not covered sufficiently
by the operating instructions, get in touch with your contact person. You can find contact
information for your local contact person in the Internet.
Product information on the Internet
The Programming Manual is an integral part of the companion CD, which may be ordered
separately. In addition, the Programming Manual is available on the Internet on the Siemens
homepage.
On the CD you will also find the technical data sheet containing the ordering data, the Device
Install software for SIMATIC PDM for subsequent installation and the required software.
See also
Instructions and Manuals (http://www.siemens.com/processinstrumentation/documentation)
Product information on SITRANS T in the Internet (http://www.siemens.com/sitranst)
Contacts (http://www.siemens.com/processinstrumentation/contacts)

SITRANS TH400
Operating Instructions, 02/2007, A5E01018688-01 9
General safety notes 2
2.1 General information
This device left the factory free from safety problems. In order to maintain this status and to
ensure safe operation of the device, please observe the safety information and warnings
contained in these instructions.
2.2 Correct usage
The device may only be used for the purposes specified in these instructions.
Insofar as they are not expressly stated in these instructions, all changes to the device are
the sole responsibility of the user.
2.3 Laws and directives
The regulations of the test certification valid in your country are to be observed.
Electrical connection in hazardous zones with explosive atmospheres
The national directives and laws for hazardous areas valid in your country must be observed
for electrical connection. For example, in Germany these are:
● Operational safety regulations
● Directive for the installation of electrical systems in hazardous areas DIN EN 60079-14
(previously VDE 0165, T1)

General safety notes
2.4 Measures
SITRANS TH400
10 Operating Instructions, 02/2007, A5E01018688-01
2.4 Measures
For the sake of safety, the following precautions must be observed:
Warning
Type of protection "pressure-proof encapsulation"
Devices with "pressure-proof encapsulation" protection may only be opened when off
circuit.
"Intrinsically safe" protection type
"Intrinsically-safe" devices lose their certification as soon as they are operated on circuits
which do not correspond with the test certification valid in their country.
Protection type "limited energy" nL (zone 2)
Devices with "limited energy" may be connected and disconnected while in operation.
Protection type "non-sparking" nA (zone 2)
Devices with "non-sparking" protection may only be connected and disconnected when off
circuit.
Warning
Exposure to aggressive and hazardous media
The device can be operated both at high pressure and with aggressive and hazardous
media. Therefore, improper use of this device may lead to serious injury and or
considerable damage to property. Above all, it must be noted when the device was in use
and is to be exchanged.
Caution
Electrostatic Sensitive Devices (ESD)
This device contains electrostatic sensitive devices. Electrostatic sensitive devices may be
destroyed by voltages that are undetectable to a human. Voltages of this kind occur as
soon as a component or an assembly is touched by a person who is not grounded against
static electricity. The damage to a module as a result of overvoltage cannot usually be
detected immediately. It may only become apparent after a long period of operation.

General safety notes
2.5 Qualified Personnel
SITRANS TH400
Operating Instructions, 02/2007, A5E01018688-01 11
2.5 Qualified Personnel
Qualified personnel are people who are familiar with the installation, mounting,
commissioning, and operation of the product. These people have the following qualifications:
● They are authorized, trained or instructed in operating and maintaining devices and
systems according to the safety regulations for electrical circuits, high pressures and
aggressive as well as hazardous media.
● For explosion-proof devices: They are authorized, trained, or instructed in carrying out
work on electrical circuits for hazardous systems.
● They are trained or instructed in maintenance and use of appropriate safety equipment
according to the safety regulations.
● They should be trained in first aid.

General safety notes
2.5 Qualified Personnel
SITRANS TH400
12 Operating Instructions, 02/2007, A5E01018688-01

SITRANS TH400
Operating Instructions, 02/2007, A5E01018688-01 13
Description 3
3.1 Summary
The temperature transmitter SITRANS TH400 is available in to basic versions for the
fieldbus protocols:
● PROFIBUS PA (7NG3214 ...)
● FOUNDATION fieldbus (7NG3215 ...)
3.2 Application range
● Linearized temperature measurement with a resistance thermometer or thermocouple;
● Difference, mean value, or redundant temperature measurement with resistance
thermometer or thermocouple;
● Linear resistance and bipolar millivolt measurements;
● Difference, mean value or redundant resistance and bipolar millivolt measurement.
Install and operate the explosion-proof transmitter in hazardous areas according to the
specifications of the EC-type examination certificate per ATEX and these Operating
Instructions or the inspection certificate valid in your country.
3.3 Product features
● Installation in the type B connection head per DIN 43729 or a larger connection head.
● Transmitter with PROFIBUS PA communication
● Transmitter with FOUNDATION fieldbus communication
● Capable of communication via PROFIBUS PA and FOUNDATION fieldbus. For example,
sensor activation and measuring range can be programmed with it.
● Configuration via PROFIBUS PA with SIMATIC PDM (SITRANS TH400 as PROFIBUS
PA version) or via FOUNDATION fieldbus with Emerson AMS, handheld 375 (SITRANS
TH400 as FOUNDATION fieldbus version).
● The simulation mode in FOUNDATION fieldbus is activated with a magnetic pin.
● Polarity-independent bus connection
● 24 bit analog-to-digital converter for a high resolution

Description
3.4 Type plate structure
SITRANS TH400
14 Operating Instructions, 02/2007, A5E01018688-01
● PROFIBUS PA function blocks: Two analog
● FOUNDATION fieldbus function blocks: Two analog and one PID
● FOUNDATION fieldbus functionality: Basic or LAS.
● Galvanical isolation
● Intrinsically safe version for use in hazardous areas
● Special characteristic curve
3.4 Type plate structure
The type plate is located on the housing and carries the order number and other important
product information; see following example.
  





Figure 3-1 Example: Type plate
① Manufacturer ⑤ Order number
② Pay attention to the Operating Instructions ⑥ Serial number with coded production year
and production month.
③ Version;
PROFIBUS PA or FOUNDATION fieldbus
⑦ Type designation
④ Hardware and firmware revision ⑧ Place of manufacture

Description
3.5 Mode of operation
SITRANS TH400
Operating Instructions, 02/2007, A5E01018688-01 15
3.5 Mode of operation
In what follows, the mode of operation of the transmitter is explained using the function block
diagram.
The two versions of the SITRANS TH400 (7NG3214 ... and 7NG3215 ...) are distinguished
solely by the type of the fieldbus protocols (PROFIBUS PA or FOUNDATION fieldbus).
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Figure 3-2 Function block diagram SITRANS TH400

Description
3.6 System communication
SITRANS TH400
16 Operating Instructions, 02/2007, A5E01018688-01
3.6 System communication
s
2XWSXW
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Figure 3-3 Communications interface

SITRANS TH400
Operating Instructions, 02/2007, A5E01018688-01 17
Assembly 4
Notice
The transmitter is intended only for installation in the type B connection head or larger.
Caution
Before assembling the head-mounted transmitter, observe the following notes:
•Install the SITRANS TH400 transmitter in a suitable housing.
•Adapt the degree of protection and the housing material to the specific requirements.
•Comply with the ambient conditions specified in the technical data.
● Springs and fixing screw for the transmitter are included in the delivery.
● The transmitter may be secured optionally in the base of the connection head or in the
raised cover of the connection head.





Securing the transmitter in the connection
head base
Securing the transmitter in the connection
head cover
① Transmitter ① Transmitter
② Connection head ② Ceramic base of the measuring element
③ Connection head

Assembly
SITRANS TH400
18 Operating Instructions, 02/2007, A5E01018688-01

SITRANS TH400
Operating Instructions, 02/2007, A5E01018688-01 19
Connecting 5
5.1 Bus installation
s
s
'3 3$
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Figure 5-1 Bus installation using PROFIBUS PA as an example. The FOUNDATION fieldbus should
be connected correspondingly.

Connecting
5.2 General connection notes
SITRANS TH400
20 Operating Instructions, 02/2007, A5E01018688-01
5.2 General connection notes
Warning
Electrical connection in hazardous zones with explosive atmospheres
For electrical connection, observe the national directives and laws for hazardous areas
valid in your country. For example, in Germany, the following hold:
•the working reliability regulation;
•the directive for the installation of electrical systems in hazardous areas, DIN EN 60079
- 14 (previously VDE 0165, T1)
•the EC-type examination certificate.
If a power supply is required, check to see if the specifications on power supply agree with
those on the type plate and the inspection certificate valid in your country.
● Connecting the sensor, cf. chapter: Options for sensor connection assignments
(Page 24)
● Bus connection:
The transmitter is connected with its connecting terminals "1" and "2" to the segment
coupler. The transmitter acts independent of polarity.
● Connection cable:
– Max. cable cross-section 2.5 mm2;
– Install the signal cable separately from cables with voltages of U > 60 V;
– Use cable with twisted wires;
– Avoid getting too close to large electrical systems or use shielded cables;
– Full specification according to PROFIBUS PA or FOUNDATION fieldbus only with
shielded cables;
– Use only cable entries and covers that are approved for the relevant use;
– At an ambient temperature of T ≥ 60°C, use heat-resistant cables approved at least
for an ambient temperature at least 20 K higher.