Siemens SITRANS T3K PA 7NG3213 User manual

SITRANS T3K PA
C79000-B7174-C55-03 1
SITRANS T3K PA
7NG3213
Edition 08/2002
.......................................
English........................................

SITRANS T3K PA
C79000-B7174-C55-03
2
Copyright ESiemens AG 1999 All rights reserved
Weitergabe sowie Vervielfältigung dieser Anleitung, Ver-
wertung und Mitteilung ihres Inhalts ist nicht gestattet,
soweit nicht ausdrücklich zugestanden. Zuwiderhandlun-
gen verpflichten zu Schadenersatz. Alle Rechte vorbe-
halten, insbesondere für den Fall der Patenterteilung
oder GM--Eintragung
Siemens AG
Bereich Automatisierungs-- und Antriebstechnik
Geschäftsgebiet Process Instrumentation
D--76181 Karlsruhe
Disclaimer of Liability
We have checked the contents of this manual for agree-
ment with the hardware and software described. Since
deviations cannot be precluded entirely, we cannot gua-
rantee full agreement. However, the data in this manual
are reviewed regularly and any necessary corrections
included in subsequent editions. Suggestions for impro-
vement are welcomed.
ESiemens AG1999
Technical data subject to change.
Copyright ESiemens AG1999 Allrights reserved
The reproduction, transmission or use of this document
or its contents is not permitted without express written
authority. Offenders will be liable for damages. All rights,
including rights created by patent grant or registration of
a utility model or design, are reserved.
Siemens AG
Bereich Automatisierungs-- und Antriebstechnik
Geschäftsgebiet Process Instrumentation
D--76181 Karlsruhe
Haftungsausschluss
Wir haben den Inhalt der Anleitung auf Übereinstimmung
mit der beschriebenen Hard--und Software geprüft. Den-
noch können Abweichungen nicht ausgeschlossen wer-
den, so dass wir für die vollständige Übereinstimmung
keine Gewähr übernehmen. Die Angaben in dieser Anlei-
tung werden regelmäßig überprüft, und notwendige Kor-
rekturen sind in den nachfolgenden Auflagen enthalten.
Für Verbesserungsvorschläge sind wir dankbar.
ESiemens AG 1999
Technische Änderungen bleiben vorbehalten

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C79000-B7174-C55-03 57
Contents
1 Technical Description 63...............................
1.1 Range of Application 63..................................
1.2 Product features 63.....................................
1.3 PROFIBUS connection 64................................
1.3.1 Setting the PROFIBUS address 64........................
1.3.2 Useful data about PROFIBUS 64..........................
1.3.3 Status 65..............................................
1.3.4 Diagnostics 68..........................................
1.3.5 Acyclic services 69......................................
1.4 Operation principle 70...................................
1.5 Technical Data 71.......................................
1.6 Ordering data 79........................................
1.7 Dimensions 80.........................................
2 Installation 81.........................................
2.1 Installation in terminal housing 81.........................
2.2 Electrical Connection 82.................................
3 Commissioning and parameterizable functions 88........
3.1 Functions 88...........................................
3.2 Status on the measured value status 90....................
3.3 Open circuit monitoring with short-circuit monitoring 90.......
3.4 Line adjustment 91......................................
3.5 Line resistance 91......................................
3.6 Mains frequency filter 91.................................
3.7 Scaling factor 91........................................
3.8 Reference selection for measuring by means of a thermo-
couple 91..............................................
3.9 Trimming range specification 92...........................
3.10 Trimming function 92....................................
4 Operation 93..........................................
4.1 Operation with PC/Laptop via interface 93..................
4.1.1 Operation with PC/Laptop 93.............................
4.1.2 Operation/control with control system 93...................
5 Maintenance 94........................................
6 Certificates 95.........................................
6.1 EC declaration of conformity 95...........................
6.2 EC-Type-Examination Certificate ZELM 99 ATEX 0001 98....
6.3 Statements of confirmity 101...............................
6.4 FM Certicate 101.........................................
7 PROFIBUS 104..........................................
7.1 Transmission technology 104..............................

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7.2 Topology 104............................................
7.3 Properties of the PROFIBUS-PA 106........................
Appendix 1 Index 109............................................
Appendix 2 Device data file 111...................................
Appendix 3 Literature and catalogs 113.............................
Appendix 4 PA profile table of the SITRANS T3K PA 115..............

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Classification of SafetyRelated Notices
This manual contains notices which you should observe to ensure your own per-
sonal safety, as well as to protect the product and connected equipment. These
notices are highlighted in the manual by a warning triangle and are marked as
follows according to the level of danger:
!DANGER
indicates an imminently hazardous situation which, if not avoided, will
result in death or serious injury.
!WARNING
indicates a potentially hazardous situation which, if not avoided, could
result in death or serious injury.
!CAUTION
used with the safety alert symbol indicates a potentially hazardous
situation which, if not avoided, may result in minor or moderate injury.
CAUTION
used without safety alert symbol indicates a potentially hazardous si-
tuation which, if not avoided, may result in property damage.
NOTICE
indicates a potential situation which, if not avoided, may result in an
undesireable result or state.
.NOTE
indicates a reference to a possible advantage when this recommenda-
tion is followed.

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.NOTE
These instructions do not purport to cover all details or variations in
equipment, nor to provide for every possible contingency that may
arise during installation, operation or maintenance.
Should further information be desired or should particular problems
arise that are not covered sufficiently for the Purchaser’s purposes, the
matter should be referred to the local Siemens Sales Office.
The contents of this instruction manual shall not become part of or
modify any prior or existing agreement, commitment or relationship.
The Sales Contract contains the entire obligations of Siemens. The
warranty contained in the contract between the parties is the sole war-
ranty of Siemens. Any statements contained herein do not create new
warranties or modify the existing warranty.
!WARNING
This device may only be assembled and operated after qualified
personnel has ensured, by providing suitable power supplies, that no
hazardous voltages can get into the device in normal operation or in
the event of a failure of the system or parts thereof.
The device may be operated with high pressure and aggressive
media. Therefore serious injuries and/or considerable material damage
cannot be ruled out in the event of improper handling of the device.
Trouble-free and reliable operation of this device is conditional upon
the proper storage, installation and assembly as well as careful
operation and maintenance.

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C79000-B7174-C55-03 61
Qualified person
For the purposes of this manual, a qualified person is one who is familiar with the
installation, commissioning and operation of this equipment. In addition, the
person must be:
.Trained and authorised to operate and service equipment/systems in
accordance with established safety practices relating to electrical circuits,
high pressures and aggressive media.
.Trained in the proper care and use of protective equipment in accordance
with established safety practices.
.In the case of explosion-protected devices: trained or instructed or autho-
rised to perform work on electrical circuits for explosion-protected systems.
.Trained in rendering first aid.
.NOTE
The general regulations for system operating must be observed for
operation and maintenance of the transmitter.
The contents reflect the technical state at the time of going to print.
Subject to technical modifications in the course of further development.
Excluded Liability:
The user is responsible for all changes made on the device, provided that these
are not explicitly mentioned in the instruction manual.

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Instruction Manual 7NG3213
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1 Technical Description
1.1 Range of Application
The SITRANS T3K PA transmitter can be used in all branches. Its compact size
enables it to be installed in the terminal housing with raised cover type B
(DIN 43729) or higher. The following sensors/signal sources can be connected
through its universal input module:
DResistance thermometer
DThermocouples
DResistance based sensor/potentiometer
DDC voltage sources
The useful data – measured values with status as a quality specification and other
parameters – are provided on the PROFIBUS-PA (see chapter 1.3.2, page 64 und
chapter 7, page 104).
Transmitter in the version ”Ignition protection type non-incendive” can be mounted
inside areas with an explosion hazard (zone 2). Transmitter in the ”intrinsically
safe ignition protection type” can be mounted in areas with an explosion hazard
(zone 1) and be used for feeding sensors at zone 0. The conformity declarations
comply with the European standard (CENELEC).
1.2 Product features
DTransmitter with bus connection according to IEC 61158-2 and EN 50170, part 4
DData transmission and transmitter supply via common bus link
DInstallation in terminal housing type B with raised cover (DIN 43729) or higher
DCan communicate through PROFIBUS-PA (profile B, version 3.0); sensor,
measuring range and much more can therefore be programmed.
DQuality data for the measured values: status with limit values
DFixed bus current limiting in the event of an error
DElectrical isolation (test voltage 500 V AC)
DIntrinsically safe version for use in Ex-area

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1.3 PROFIBUS connection
The PROFIBUS (Process Field Bus) is an open communication system for
automation technology. A detailed description of its properties can be found in
chapter 7, page 104. The most important information for operation is listed below:
1.3.1 Setting the PROFIBUS address
The PROFIBUS address is set to 126 as standard. It can be set to another value
by the parameter setting tool, e.g. SIMATIC PDM. The set PROFIBUS address
may only be assigned once on the same bus system.
1.3.2 Useful data about PROFIBUS
Floating point representation of the measured value
Bits 7 6 5 4 3 2 1 0
Bytes VZ E
1 27262524232221
E M
2 202--1 2--2 2--3 2--4 2--5 2--6 2--7
M
3 2--8 2--9 2--10 2--10 2--12 2--13 2--14 2--15
M
4 2--16 2--17 2--18 2--19 2--20 2--21 2--22 2--23
VZ: sign; 0 = positive, 1 = negative
M: Mantissa
E: Exponential
The useful data are continuously updated by the cyclic service of PROFIBUS.
This is the measured value in SITRANS T3K PA. It can be a temperature,
resistance or voltage value depending on the configuration. The measured value
is divided into a floating point value (4 bytes) and the appropriate quality indicator
(1 byte).

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1.3.3 Status
The status provides information about the quality of the measured value (data
according to PROFIBUS--PA General Requirements, see appendix 3, page 113
”Literature and Catalogs” /10/) and has the following structure:
76 5 4 3 2 1 0
Quality Sub-status Limit value
DQuality (bits 6 and 7), global information about order:
0 = Poor
1= Uncertain
2 = Good
3 = Good (cascade) (not relevant for transmitters)
DSub-status: Additional information on quality
DLimit value (bits 0 and 1)
0 = Good
1 = Lower limit reached, exceeded or at limited to lower limit
value. This also includes short-circuit.
2 = Upper limit reached, exceeded or limited to upper limit
value. This also includes open circuit.
3 = Value is fixed, no measured value

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Different codings for the respective quality specification.
Status coding for ”Poor quality”
Dec Hex Cause Measure
04 04 Parameters do not match. Dynamic
value is incorrect. Check the parameters.
15 0F Device error detected, e.g. memory
error. The transmitter is switched off
with certain memory errors.
Change the transmitter.
16 10 Connected sensor shows error. Check wiring and sensor.
17 11 Short-circuit detected. Check wiring to sensor.
18 12 Open circuit or sensor break
detected. Check wiring and sensor.
31 1F 1) 2)
1) Transmitter out of order. Parameterizable equivalent value behavior.
Three cases can be selected: 1. Through connect parameterized equivalent value.
2. Hold last valid value (default value).
3. Through connect bad value/status
2) Depending on the parameterization, the transmitter is in a certain state which requires an
adapted procedure:
1. and 2.: The transmitter is out of order. Clear the cause of the error or re-paramterize the
equivalent value behavior and switch the state to automatic.
3. Analyze the bad value/status.
Table 1 Status coding for ”Poor quality”

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Status coding for ”Uncertain quality”
Dec Hex Cause Remedy
68 44 The range has been changed and
the transmitter supplies the last
useful value.
Wait until the transition phase is over
and then re-enter the measured
value.
71 47 The new measured value is bad
therefore the transmitter supplies the
last valid value.
Check the measured value entry and
the sensor connection.
75 48 The new measured value is bad
therefore the transmitter supplies the
parameterized equivalent value.
Check the measured value entry and
the sensor connection.
79 4F After switching on the power supply
the transmitter supplies the parame-
terized equivalent value.
Reject the measured value in the
user program if necessary.
81 51 The sensor’s measured value is in-
accurate, value is below the sensor
characteristic.
Check the parameterization and
polarity of the sensor.
82 52 The sensor’s measured value is in-
accurate, value above the sensor
characteristic.
Check the parameterization and
polarity of the sensor.
Table 2 Status coding for ”Uncertain quality”

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Statsu coding for ”Good quality”
Dez Hex Cause Remedy
128 80 ok, normal operation Now you can evaluate the measured
values.
132 84 Display active block alarm:
A parameter relevant to the
behavior of the slave has
been changed.
Wait with the evaluation of the measured
values until the system has switched back
on (display goes out after 10 seconds).
137 89 Dropped below warning limit React in the user program
138 8A Warning limit exceeded React in the user program
141 8D Dropped below alarm limit React in the user program
142 8E Alarm limit exceeded React in the user program
Table 3 Good quality specification
1.3.4 Diagnostics
A diagnostics message is sent in place of the classic measured value when a
diagnostic comes or goes. The diagnostic can be read out on the master class 1 if
the station is switched ”online” (station is the hierarchical level below a project in
the SIMATIC Manager, see appendix 3, page 113, ”Literature and Catalogs” /2/):
– under module status
– in the DP-Slave diagnostics register
The SITRANS T3K PA supplies diagnostic data in the following form:
Input (master view): diagnostics according to PROFIBUS-DP (DDLM_Slave_Diag)
Start address 0Station_status_1
1Station_status_2
2Station_status_3
S
t
a
n
d
a
r
d
D
P
d
i
a
g
n
o
s
t
i
c
3Diag_Master_Add
S
tan
d
ar
d
D
P
d
i
agnost
i
c
4Ident_Number
5Ident_Number
6Header
7Status_Type Status coding according to
8Slot_Number
S
t
a
t
u
s
c
o
d
i
n
g
a
c
c
o
r
d
i
n
g
t
o
DP/V1 (quality indicator)
9Specifier 1)
(
q
y
)
10 Diagnostic (0)
11 Diagnostic (1) Diagnostic object of the
12 Diagnostic (2)
D
i
a
g
n
o
s
t
i
c
o
b
j
e
c
t
o
f
t
h
e
physical block
13 Diagnostic (3)
p
y
1) Specifier: 1: Error appears = Incoming event
2: Error disappears = Outgoing event

Instruction Manual 7NG3213
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The diagnostic object consists of 4 bytes. Only two bytes are relevent for
SITRANS T3K PA. The two bytes have the following meaning:
Byte Bit Meaning when ”1”
0 0
1
2
3
4
5
6
7
–
–
–
Electronic temperature too high
Measurement failure
Memory error
–
–
Byte Bit Meaning when ”1”
1 0
1
2
3
4
5
6
7
–
–
Configuration invalid
Restart
Coldstart
–
–
Ident_Number violation = (GSD)
The basic English texts originate from the device data file (GSD, see appendix 2,
page 111 ”Device data file”)
1.3.5 Acyclic services
Using the acyclic services you can read every readable parameter of the
PROFIBUS profile or write every writable parameter with the appropriate access
authorization.
The parameters of the PROFIBUS and its attributes (read and/or write) are listed
in appendix 4, page 115 ”PA profile table of SITRANS T3K PA”.

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1.4 Operation principle
The measuring signal supplied by a resistance based sensor (two, three or four
wire connection), voltage based sensor or thermocouple is amplified in the input
stage. The voltage proportional to the input variable is then converted into digital
signals in an analog/digital converter. They are converted according to the sensor
characteristic in the microprocessor. Furthermore, the microprocessor interprets
the bus commands, initiates device-internal actions and provides measured
values, status and device data by electrical isolation on the bus.
Sensor
TC
I
#
RTD
¡Analog-digital converter
©Microprocessor
¢Electrical isolation
£PA interface
¤Power supply
¥DP/PA coupler or DP/PA link
¦Bus master
μP
©
¢
£
SITRANS T3K
Power Supply
¤
¥
¦
¡
PA-
Inter-
face PROFI-
BUS-PA
Coup--
ler
Power
supply
Bus
master
PROFIBUS-
DP
Figure 1 Block diagram function of the SITRANS T3K PA
The SITRANS T3K PA contains the following integrated device protection
functions:
DElectrical current limiting:
Avoids bus overloading in the event of a fault; the data traffic of the other,
undisturbed users is maintained
DReverse polarity protection:
Enables any conenction of the bus lines
DEMC filter
Prevents malfunctions in the case of electromagnetic interference

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1.5 Technical Data
Input
Selectable filters for suppres-
sing line frequencies 50/60 Hz (additional 10 Hz for special
applications)
Resistance thermometer
Sensor type Pt10, Pt50, Pt100, Pt200, Pt1000 (IEC 751,
DIN 43760, JIS C 1604-97, BS 1904)
Pt10, Pt50, Pt100 (JIS C 1604-81):
Ni50, Ni100, Ni120, Ni1000 (DIN 43760)
Measuring type Standard (logic channel 1),
Averaging connection or differentiating
connection (of 2 channels)
Standard 1 resistance thermometer in two, three or
four-wire circuit
Averaging connection Averaging connection between two re-
sistance thermometers in two-wire circuit,
parameterizable equivalent value behavior
(e. g. the value of the other channel is output
when the channel is defective)
Differentiating connection Differentiating connection between two resi-
stance thermometers in two-wire circuit, diffe-
rence is parameterizable (e.g. channel 2 –
channel 1).
Series or parallel
circuit Series or parallel circuiting of several resistance thermometers in two-wire circuit,
e.g. to adapt other transmitter types, is
implemented as an additional function. This
gives a scaling factor.
Adjustment at
Two-wire circuit Line resistance parameterizable ≤5%ofthe
measuring range
Three-wire circuit No adjustment necessary. The line
resistances must be equal between the
respective sensor connection and the
appropriate connection on the transmitter.
Four-wire circuit No adjustment necessary.
Sensor current ≤0.55 mA
Range limits Depending on the connected sensor type
(defined range of the sensor)

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Trimming range Parameterizable for application within the
measuring range program: Basis for the
trimming functions (see chapter 3, page 88).
Characteristic Temperature linear
Resistance based sensor
Sensor type Linear: 1 resistance based sensor in two,
three or four-wire circuit
Measuring type Standard (logic channel 1), averaging con-
nection or differentiating connection (of 2
channels)
Standard 1 resistor in two, three or four-wire circuit
Averaging connection Averaging connection between two resistors
in two-wire circuit, parameterizable equivalent
value behavior (e. g. the value of the other
channel is output if the channel is defective)
Differentiating connection Differentiating connection between two resi-
stors in two-wire circuit, difference is parame-
terizable (e.g. channel 2 – channel 1)
Series or parallel circuit Series or parallel circuit of several resistors in
two-wire circuit, e.g. to adapt other transmitter
types is implemented as an additional func-
tion. This gives a scaling factor.
Adjustment at
Two-wire circuit Parameterizable line resistance ≤5%ofthe
measuring range
Three-wire circuit No adjustment necessary. The line
resistances between the respective sensor
connection and the appropriate connection to
the transmitter must be the same.
Four-wire circuit No adjustment necessary.
Sensor current ≤0.55 mA

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Input range 9 resistance ranges selectable:
0to24Ω
0to47Ω
0to94Ω
0to188Ω
0to375Ω
0to750Ω
0 to 1500 Ω
0 to 3000 Ω
0 to 6000 Ω(not for averaging connection or
differentiating connection)
Characteristic Resistance linear
Thermocouples
Sensor type Thermopairs
Type B: Pt30Rh-Pt6Rh DIN IEC 584
Type C: W5-Re ASTM 988
Type D: W3-Re ASTM 998
Type E: NiCr-CuNi DIN IEC 584
Type J: Fe-CuNi DIN IEC 584
Type K: NiCr-Ni DIN IEC 584
Type N: NiCrSi-NiSi DIN IEC 584
Type R: Pt13Rh-Pt DIN IEC 584
Type S: Pt10Rh-Pt DIN IEC 584
Type T: Cu-CuNi DIN 43710
Type T: Cu-CuNi DIN 43710
Type U: Cu-CuNi DIN 43710
Measuring type Standard with 1 thermocouple with reference
point compensation or differentiating or
averaging connection value forming
Standard 1 thermocouple with or without reference
point compensation.
Averaging connection Averaging connection between the tem-
peratures of two thermocouples. The equiva-
lent value behavior is parameterizable (e.g.
the value of the other channel is output when
the channel is defective). The internal sensor
is used for reference point compensation.
Differentiating connection Differentiating connection between the
temperatures of two thermocouples. The
difference is parameterizable (e.g. channel 2
– channel 1). The internal sensor is used for
reference point compensation.

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Reference point compensa-
tion Type specification
DNo compensation (2 channels)
DInternal acquisition with integrated or with
external sensor: for the ”external sensor”
case a manufacturer-specific PA-parameter
must be set (default value: internal sensor);
see chapter 3.8, page 91.
DExternally specified reference point tem-
perature can be set as a fixed value
Measuring range Depending on connected sensor type
Characteristic Temperature linear
Millivolt transmitter
Sensor type Linear
Standard 1 millivolt transmitter (logic channel 1)
Input range 7 voltage ranges selectable:
–1 to 16 mV
–3 to 32 mV
–7 to 65 mV
–15 to 131 mV
–31 to 262 mV
–63 to 525 mV
–120 to 1000 mV
Overloadability of the input max. 3.5 V
Characteristic Voltage linear
Input resistance ≥1MΩ
Sensor current 180 μA
Measuring accuracy
Reference conditions
Power Supply 15 V 1%
Ambient temperature 23 °C
Warming-up time 1 h
Measuring error See Table 4, page 77
Error in the internal refe-
rence point
<0.5 _C0.1 %/10 °C
Temperature drift ±0.05 %/10 °CFSR,
0.1 % in the range from –10 °Cto60°C