Endress+Hauser Smartec S CLD132 User manual

Products Solutions Services
BA00213C/07/EN/14.13
71228814
Operating Instructions
PROFIBUS-PA/-DP
Field Communication for Smartec S CLD132/134
8

Endress+Hauser
About this document
Safety messages
The structure, signal words and safety colors of the signs comply with the specifications of
ANSI Z535.6 ("Product safety information in product manuals, instructions and other
collateral materials").
Symbols
Safety message structure Meaning
DANGER
!
Cause (/consequences)
Consequences if safety
message is not heeded
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the situation will result in a fatal or serious
injury.
WARNING
!
Cause (/consequences)
Consequences if safety
message is not heeded
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the situation can result in a fatal or serious
injury.
CAUTION
!
Cause (/consequences)
Consequences if safety
message is not heeded
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in minor or
medium injury.
NOTICE
Cause/situation
Consequences if safety
message is not heeded
‣Action/note
This symbol alerts you to situations that can result in
damage to property and equipment.
Additional information, tips
Permitted or recommended
Forbidden or not recommended

Smartec S CLD132/134 PROFIBUS-PA/-DP
Endress+Hauser 3
Table of contents
1 Basic safety instructions . . . . . . . . . . . . . 4
1.1 Requirements for the personnel . . . . . . . . . . . . . . . 4
1.2 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Workplace safety . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Operational safety . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Product safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Installation . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 System equipment . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Post-installation check . . . . . . . . . . . . . . . . . . . . . . . 7
3 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Post-connection check . . . . . . . . . . . . . . . . . . . . . 10
4 Operability. . . . . . . . . . . . . . . . . . . . . . . . 11
4.1 Display and operating elements . . . . . . . . . . . . . 11
4.2 Operation via FieldCare . . . . . . . . . . . . . . . . . . . . 11
5 System integration. . . . . . . . . . . . . . . . . 12
5.1 Block model of PROFIBUS PA/DP . . . . . . . . . . . . 12
5.2 Cyclical data exchange (Data_Exchange) . . . . . 18
5.3 Acyclical data exchange . . . . . . . . . . . . . . . . . . . . 22
6 Commissioning. . . . . . . . . . . . . . . . . . . . 30
6.1 Function check . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.2 Setting of device address . . . . . . . . . . . . . . . . . . . 30
6.3 Device data and type files . . . . . . . . . . . . . . . . . . . 32
7 Diagnostics and troubleshooting. . . . . 35
8 Accessories . . . . . . . . . . . . . . . . . . . . . . . 37
9 Technical data . . . . . . . . . . . . . . . . . . . . 39
9.1 Output PROFIBUS-PA . . . . . . . . . . . . . . . . . . . . . . 39
9.2 Output PROFIBUS-DP . . . . . . . . . . . . . . . . . . . . . . 39
9.3 Display and user interface . . . . . . . . . . . . . . . . . . 40
9.4 Standards and guidelines . . . . . . . . . . . . . . . . . . . 40
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Basic safety instructions Smartec S CLD132/134 PROFIBUS-PA/-DP
4Endress+Hauser
1 Basic safety instructions
1.1 Requirements for the personnel
‣Installation, commissioning, operation and maintenance of the measuring system must
only be carried out by trained technical personnel.
‣The technical personnel must be authorized by the plant operator to carry out the
specified activities.
‣The electrical connection may only be performed by an electrical technician.
‣The technical personnel must have read and understood these Operating Instructions
and must follow the instructions they contain.
‣Measuring point faults may only be rectified by authorized and specially trained
personnel.
Repairs not described in the enclosed Operating Instructions may only be carried out
directly at the manufacturer's or by the service organization.
1.2 Designated use
These Operating Instructions were designed specifically for use with transmitters of the
family Smartec S CLD132/134. They contain specific information for instruments with the
PROFIBUS PA interface (Process Field Bus - Process Automation) or the PROFIBUS DP
interface (Process Field Bus - Decentralized Peripherals).
PROFIBUS is an open field bus standard according to IEC 61158 / IEC 61784. It has been
created specifically for process control purposes and permits connection of several
measuring instruments to a bus line. The transmission method according to IEC 1158-2
guarantees safe signal transmission.
The PROFIBUS PA interface permits operation of the instrument from the PC:
• via FieldCare (Plant Asset Management Tool)
Any other use than the one described here compromises the safety of persons and the entire
measuring system and is not permitted.
The manufacturer is not liable for damage caused by improper or non-designated use.
1.3 Workplace safety
As the user, you are responsible for complying with the following safety conditions:
• Regulations for explosion protection
• Installation instructions
• Local standards and regulations
Electromagnetic compatibility
With regard to electromagnetic compatibility, this device has been tested in accordance with
the applicable European standards for industrial applications.
The electromagnetic compatibility indicated only applies to a device that has been connected
in accordance with the instructions in these Operating Instructions.
1.4 Operational safety
‣Before commissioning the entire measuring point, make sure all the connections are
correct. Ensure that electrical cables and hose connections are not damaged.
‣Do not operate damaged products, and safeguard them to ensure that they are not
operated inadvertently. Mark the damaged product as defective.
‣If faults cannot be rectified, the products must be taken out of service and secured against
unintentional commissioning.

Smartec S CLD132/134 PROFIBUS-PA/-DP Basic safety instructions
Endress+Hauser 5
1.5 Product safety
The product is designed to meet state-of-the-art safety requirements, has been tested and
left the factory in a condition in which it is safe to operate. Relevant regulations and
European standards have been observed.

Installation Smartec S CLD132/134 PROFIBUS-PA/-DP
6Endress+Hauser
2Installation
2.1 System equipment
A complete system architecture comprises:
• Transmitter Smartec S CLD132 or CLD134
• Segment coupler (PA only)
• PROFIBUS termination
• Cabling incl. bus distributor
• either
– PC with FieldCare or
– Programmable logic controller (PLC)
a0005890
Fig. 1: Measuring systems with PROFIBUS interface
1 PC with PROFIBUS interface
2PLC
3 Smartec S CLD132/134 PROFIBUS DP compact version
4Segmentcoupler
5Termination
6 Smartec S CLD132/134 PROFIBUS PA compact version
7 Smartec S CLD132/134 PROFIBUS PA separate version with CLS52/54
PROFIBUS PA
PROFIBUS DP
1
2
34
5
ENDRESS+HAUSER
SMARTECS
ENDRESS+HAUSER
SMARTECS
ALARM
CAL
E
+
–
6
7

Smartec S CLD132/134 PROFIBUS-PA/-DP Installation
Endress+Hauser 7
The maximum number of transmitters in a bus segment is determined by their power
consumption, the bus coupler output and the required bus length.
For detailed information on function and connection of a PROFIBUS system, please
refer to Technical Information TI00260F/00/en
2.2 Post-installation check
• After installation, check the transmitter for damage.
• Check whether the transmitter is protected against moisture and direct sunlight (e.g. by
the weather protection cover).

Wiring Smartec S CLD132/134 PROFIBUS-PA/-DP
8Endress+Hauser
3 Wiring
WARNING
!
Device is energized
Improper connection can cause injury or death.
‣The electrical connection must only be carried out by a certified electrician.
‣Technical personnel must have read and understood the instructions in this manual and
must adhere to them.
‣Prior to beginning any wiring work, make sure voltage is not applied to any of the cables.
3.1 Electrical connection
Proceed as follows to connect the bus cable to the transmitter:
1. Loosen the 4 Phillips screws on the housing cover and remove the cover.
WARNING
!
Instrument is energized
Inproper connection can cause injury or death.
‣Make sure the instrument is disconnected from the power source before you remove the
cover frame.
2. Remove the cover frame from the terminal blocks. To do this, introduce a screwdriver in
the recess (A) according to å2 and push the tab inward (B).
3. Thread the cables through the open cable glands into the connection compartment.
4. Cable connection for PA devices: Connect the cable wires of the bus cable in
accordance with å3 to the terminal block. Mixing up the polarity of the PA+ and
PA- connections does not have any influence on operation. The bus cable can be
connected to the PA device via the Pg cable gland or an M12 plug.
5. Cable connection for DP devices: Connect the cable wires of the bus cable in
accordance with å7 to the terminal block.
6. Tighten the cable gland.
7. Close the housing cover.
a0005891
Fig. 2: Bus cable connection Smartec S PROFIBUS
1 Port for DIL switch
2Coverframe
3Fuse
4 Removable electronics box
5Terminals
6 Housing ground

Smartec S CLD132/134 PROFIBUS-PA/-DP Wiring
Endress+Hauser 9
PA device
a0005892
Fig. 3: PA device electrical connection
DP device
a0017420
Fig. 7: DP device electrical connection
1GND
2 Power supply +5 V for bus termination
3 B (RxD / TxD-P)
4A(RxD/TxD-N)
Y Next PROFIBUS device
Z Bus termination
99 98 67 68 69 85 86 93 94 81 82 99 98 67 68 69 85 86 93 94 81 82
M12
PE
PE
PA+PA+ PA–
BK
BK
PA–
a0012694
Fig. 4: Insert the screwdriver (opens
the terminal)
a0012695
Fig. 5: Insert the cable until the limit
stop
a0012696
Fig. 6: Remove the screwdriver
(closes the terminal)

Wiring Smartec S CLD132/134 PROFIBUS-PA/-DP
10 Endress+Hauser
The remaining connection (sensor, power supply etc.) are described in the standard
Operating Instructions (BA00207C/07/EN for CLD132, BA00401C/07/EN for CLD134).
Bus termination
The bus terminations for PROFIBUS PA and DP are different.
Each PROFIBUS PA segment must be terminated with a passive bus termination on each
end.
Each PROFIBUS DP segment must be terminated with an active bus termination on each
end.
3.2 Post-connection check
After the electrical connection, carry out the following checks:
Device condition and specifications Notes
Are the transmitter and cables damaged on the outside? Visual inspection
Electrical connection Notes
Are the mounted cables strain relieved?
Cable run without loops and cross-overs?
Are the signal lines correctly connected in accordance with the wiring
diagram?
Are all screw terminals tightened?
Are all cable entries installed, tightened and sealed?

Smartec S CLD132/134 PROFIBUS-PA/-DP Operability
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4Operability
4.1 Display and operating elements
a0005901
Fig. 8: User interface of Smartec S
1 Display symbol for active communication via PROFIBUS interface
Please refer to the standard Operating Instructions for an explanation of the key assignment
and the other icons and symbols.
4.2 Operation via FieldCare
FieldCare is Endress+Hauser's FDT-based Plant Asset Management Tool. It can configure all
intelligent field devices in your plant and supports you in managing them. By using status
information, it also provides a simple but effective means of checking their health.
• Supports HART and PROFIBUS
• Operates all Endress+Hauser devices
• Integrates third-party devices such as actuators, I/O systems and sensors supporting the
FDT standard
• Ensures full functionality for all devices with DTMs
• Offers generic profile operation for third-party fieldbus devices that do not have a vendor
DTM
For information on FieldCare installation see the operating instructions "Getting started"
BA00027S/04/a4.
ENDRESS+HAUSER
SMARTEC S
ALARM
CAL
E
+
–
2000
mS/cm
O213
20 mA
1

System integration Smartec S CLD132/134 PROFIBUS-PA/-DP
12 Endress+Hauser
5 System integration
5.1 Block model of PROFIBUS PA/DP
In the PROFIBUS configuration, all the device parameters are categorized according to their
functional properties and tasks and are generally assigned to three different blocks. A block
may be regarded as a container in which parameters and the associated functionalities are
contained.
A PROFIBUS device has the following block types (see å9):
•A Physical Block (device block)
The Physical Block contains all device-specific features of the unit.
•One or more Transducer Blocks
The Transducer Block contains all the measuring and device-specific parameters of the
device. The measuring principles (e.g. conductivity, temperature) are depicted in the
Transducer Blocks in accordance with the PROFIBUS Profile 3.0 Specification.
•One or more function blocks
A function block contains the automation functions of the device. The transmitter contains
Analog Input blocks by means of which the measured values can be scaled and examined
for limit value overshoot.
A number of automation-related tasks can be implemented with these blocks. In addition to
these blocks, a transmitter can have any number of additional blocks, for example several
Analog Input function blocks if the transmitter can process more than one process variable.
a0005920-en
Fig. 9: Block model of Smartec S (grey = profile blocks)
Sensor Signal processing
Manufacturer specific
parameters
Analyzer Transducer Block 1
Main Meas. Value
Main Process Value
Analog Input Block 1
Main Meas. Value
Main Process Value
Analyzer Transducer Block 2
Temperature Value
Temperature
Analog Input Block 2
Temperature Value
Temperature
OUT VALUE
Value/Status
OUT VALUE
Value/Status
PROFIBUS Master Class 1 (cyclical data)
MRS
Local operation
Physical Block
Funktionsgruppe
ALPHA-TABELLE
Eingabe der Anzahl der
Tabellenstützpunkte
1 ... 10
1
Auswahl der
Tabellen
1 ... 4
(>1 nur bei MBU)
1
Auswahl der
Tabellenoption
edit
lesen
T2
Multiplikationsfaktor
für den Konzentrationswert
einer User-Tabelle
(nur bei MBU)
0,5 ... 1,5
1
K2
T1
Auswahl des
Tabellenwertepaares
1 ... Anzahl aus R3
fertg
1
T4
Eingabe des
Temperaturwertes
(x-Wert)
–35,0 ... 250,0 °C
0,0 °C
T5
TT3
Funktionsgruppe
KONZENTRATION
K
Auswahl der aktiven
Konzentrationstabelle
; H SO ;
H PO ; HNO
User ... 4
NaOH
1
24
34 3
K1
Auswahl der
Tabellen
1 ... 4
(>1 nur bei MBU)
1
K3
Auswahl der
Tabellenoption
edit
lesen
K4
Eingabe der Anzahl der
Tabellenstützpunkte
1 ... 16
1
K5
Funktionsgruppe
SERVICE
S
Auswahl der
Sprache
;GER
ITA; FRA
ESP; NEL
ENG
S1
HOLD-Konfiguration
Kein = kein HOLD
Setup = bei Parametrieren
CAL = bei Kalibrieren
S+C = bei Parametrieren
und Kalibrieren
S4
Eingabe des
Festwertes
(nur fall Fest)
0 ... 100 %
von 20 bzw. 16 mA
0
Auswahl des
HOLD-Effektes
Fest = fester Wert
Letzt = letzter Wert
S3S2
Manueller HOLD
ein
aus
S5

Smartec S CLD132/134 PROFIBUS-PA/-DP System integration
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Physical Block (device block)
A Physical Block contains all the data that uniquely identify and characterize the
transmitter. It is an electronic version of a nameplate on the transmitter. Parameters of the
Physical Block are, for example, device type, device name, manufacturer's identification,
serial number, etc.
A further task of the Physical Block is the management of general parameters and functions
that influence the execution of the other blocks in the transmitter. The Physical Block is thus
the central unit that also checks the device status and thereby influences or controls the
operability of the other blocks and thus also of the device.
Write protection
• On-site hardware write protection
By pressing the "Enter" and the "Plus" keys simultaneously, you can lock the device for on-
site configuration operations.
Use the "Cal" and "Minus" keys to unlock the device. You can find more information in the
standard Operating Instructions under "Locking/Unlocking keypad".
• Hardware write protection via PROFIBUS
The HW_WRITE_PROTECTION parameter indicates the status of the hardware write
protection. The following statuses are possible:
1: Hardware write protection enabled, device data cannot be overwritten.
0: Hardware write protection disabled, device data can be overwritten.
• Software write protection
You can also set software write protection to prevent all parameters from being acyclically
overwritten. You can do so by making an entry in the WRITE_LOCKING parameter. The
following entries are permitted:
2457: Device data can be overwritten (factory setting).
0: Device data cannot be overwritten.
Parameter LOCAL_OP_ENABLE
You can use the LOCAL_OP_ENABLE parameter to permit or lock local operation at the
device. The following values are possible:
• 0: Deactivated.
Local operation is locked. You can only change this status via the bus.
The code 9998 is displayed in the local operation. The transmitter behaves just as with
hardware write protection via the keyboard (see above).
• 1: Activated.
Local operation is active. However, commands from the master have a higher priority than
local commands.
Local operation is automatically activated if communication should fail for longer than
30 seconds.
If communication fails when local operation is locked, the device will immediately
return to the locked status as soon as communication is functioning again.
Parameter PB_TAG_DESC
You can set the client-specific device number (tag number) via:
• local operation in menu field I2 (INTERFACE function group) or via
• PROFIBUS parameter TAG_DESC of the Physical Block.
If you change the tag number via one of the two options, the change can also be seen
immediately at the other position.

System integration Smartec S CLD132/134 PROFIBUS-PA/-DP
14 Endress+Hauser
Parameter FACTORY_RESET
You can reset the following data via the FACTORY_RESET parameter:
Via local operation you can either reset all data to the factory settings or delete the sensor
data in menu field S10 (SERVICE function group).
Parameter IDENT_NUMBER_SELECTOR
You can use the IDENT_NUMBER_SELECTOR parameter to switch the transmitter between
three operating modes, each of which has different functionality in relation to the cyclic
data:
See also table "Device Master Files for Smartec S".
Analog Input Block (function block)
In the Analog Input function block, the process variables (conductivity and temperature) of
the Transducer Block are prepared, in terms of instrumentation and control, for the
subsequent automation functions (e.g. scaling, limit value processing). There are two
Analog Input function blocks available for the Smartec S PROFIBUS transmitter.
Signal processing
The diagram shows a schematic of the internal structure of an Analog Input function block:
a0005921
Fig. 10: Schematic internal structure of an Analog Input function block
The Analog Input function block receives its input value from the Analyzer Transducer Block.
The input values are permanently assigned to each Analog Input function block:
• Main measured value (Main Process Value) – Analog Input function block 1 (AI 1)
• Measured temperature value (temperature) – Analog Input function block 2 (AI 2)
1 all data to PNO default values
2506 transmitter warm start
2712 bus address
32768 calibration data
32769 setting data
IDENT_NUMBER_SELECTOR Functionality
0Cyclic communication only possible with Profile GSD. Only standard
diagnosis in cyclic data.
1 (default) Full functionality with Profile 3.0 and extended diagnosis in cyclic
data. The manufacturer-specific GSD is required.
2Downwards compatible Profile 2.0 functionality without diagnosis in
cyclic data. The manufacturer-specific Profile 2.0 GSD is required.
HI_HI_ALM
HI_ALM
LO_ALM
LO_LO_ALM
Transducer
Block
ACTUAL_MODE
1
1
1
0
PV OUT
0
PV_SCALE
PV_SCALE_MIN
PV_SCALE_MAX OUT_SCALE
OUT_SCALE_UNIT
OUT_SCALE_MIN
OUT_SCALE_MAX
HI_HI_LIM
HI_LIM
LO_LIM
LO_LO_LIM
ALARM_HYS
HI_HI_ALM
HI_ALM
LO_ALM
LO_LO_ALM
SIMULATION
VALUE
STATUS
ON_OFF
LIN_TYPE
CHANNEL
NORMAL_MODE
PERMITTED_MODE
ACTUAL_MODE
FSAFE_TYPE
FSAFE_VALUE MODE_BLK
MAN
MAN
PV_TIME
1
tFAIL
SAFE
OUT
MODE/
STATUS
AUTO
O/S

Smartec S CLD132/134 PROFIBUS-PA/-DP System integration
Endress+Hauser 15
SIMULATE
In the SIMULATE parameter group you can replace the input value with a simulation value
and activate simulation. By specifying the status and the simulation value, you can test the
reaction of the automation system.
PV_FTIME
In the PV_FTIME parameter you can dampen the converted input value (primary value = PV)
by specifying a filter time. If a time of 0 seconds is specified, the input value is not dampened.
MODE_BLK
The MODE_BLK parameter group is used to select the operating mode of the Analog Input
function block. By selecting the MAN (manual) operating mode, you can directly specify the
OUT output value and the OUT status.
The most important functions and parameters of the Analog Input Block are listed below.
Selecting the operating mode
The operating mode is set by means of the MODE_BLK parameter group. The Analog Input
function block supports the following operating modes:
• AUTO (automatic mode)
•MAN(manualmode)
• O/S (out of service)
Selecting the units
The system unit for one of the measured values can be changed in the Analog Input Block.
The way of changing the unit is to use the PV_SCALE and OUT_SCALE parameters (see
"Rescaling the input value").
OUT
The OUT output value is compared to warning limits and alarm limits (e.g. HI_LIM,
LO_LIM), which can be entered via diverse parameters. If one of these limit values is
violated, a limit value process alarm (e.g. HI_ALM, LO_ALM) is triggered.

System integration Smartec S CLD132/134 PROFIBUS-PA/-DP
16 Endress+Hauser
OUT status
The status of the Analog Input function block and the validity of the OUT output value are
relayed to the downstream function blocks by means of the status of the OUT parameter
group. The following status values can be displayed:
• GOOD_NON_CASCADE
The OUT output value is valid and can be used for further processing.
•UNCERTAIN
The OUT output value can only be used for further processing to a limited extent.
• BAD
The OUT output value is invalid. Occurs when the Analog Input function block is switched
to the O/S operating mode (Out of Service) or in the event of a serious error (see status
codes and system or process-specific error messages in the Operating Instructions
BA207C/07/en or BA401C/07/en).
In addition to the device-internal error messages, other device functions have an influence
on the status of the OUT value:
• Automatic hold
If "Hold" is switched on, the Out Status is set to BAD not specific (0x00).
• Calibration
During calibration, the OUT Status is set to the UNCERTAIN sensor calibration value
(0x64) (even when hold is switched on).
Simulation of input/output
You can simulate the input and output of the function block by means of various parameters
of the Analog Input function block:
1. Simulating the input of the Analog Input function block:
The SIMULATION parameter group can be used to specify the input value (measured
value and status). Since the simulation value runs through the entire function block, you
can check all the parameter settings of the block.
2. Simulating the output of the Analog Input function block:
Set the operating mode in the MODE_BLK parameter group to MAN and directly specify
the desired output value in the OUT parameter.
Measured value simulation in local operation
In the case of measured value simulation in local operation, the status UNCERTAIN –
simulated value is relayed to the function blocks. This triggers the failsafe mechanism in the
AI blocks.
Error response (FSAFE_TYPE)
If an input or simulation value has the status BAD, the Analog Input function block uses the
error response defined in the FSAFE_TYPE parameter. The FSAFE_TYPE parameter offers
the following error response options:
•FSAFE_VALUE
The value specified in the FSAFE_VALUE parameter is used for further processing.
• LAST_GOOD_VALUE
The last good value is used for further processing.
•WRONG_VALUE
The current value is used for further processing, despite the BAD status.The default is the
setting (FSAFE_VALUE) with value “0”.
Error response is also activated if the Analog Input function block is set to the “OUT OF
SERVICE” operating mode.

Smartec S CLD132/134 PROFIBUS-PA/-DP System integration
Endress+Hauser 17
Rescaling the input value
In the Analog Input function block, the input value or input range can be scaled in
accordance with the automation requirements.
Example:
• The system unit in the Transducer Block is °C.
• The measuring range of the device is –10 to 150 °C.
• The output range to the automation system should be 14 °F to 302 °F.
• The measured value from the Transducer Block (input value) is rescaled linearly via the
input scaling PV_SCALE to the desired output range OUT_SCALE.
• Parameter group PV_SCALE
PV_SCALE_MIN (V1H0) –10
PV_SCALE_MAX (V1H1) 150
• Parameter group OUT_SCALE
OUT_SCALE_MIN (V1H3) 14
OUT_SCALE_MAX (V1H4) 302
OUT_UNIT (V1H5) [F]
The result is that with an input value of 25 °C, for example, a value of 77 °F is output via the
OUT parameter (å11).
a0005922-en
Fig. 11: Scaling the input value for the Analog Input function block
Limit values
You can set two warning limits and two alarm limits for monitoring your process. The status
of the measured value and the parameters of the limit-value alarms are indicative of the
measured value's relative position. You also have the option of defining an alarm hysteresis
in order to avoid frequent changes of the limit-value flags and frequent enabling/disabling
of alarms.
The limit values are based on the OUT output value. If the OUT output value exceeds or
undershoots the defined limit values, the automation system is alarmed via the limit value
process alarms (see below).
The following limit values can be defined:
– HI_LIM, HI_HI_LIM
– LO_LIM, LO_LO_LIM
Alarm detection and processing
Limit value process alarms are generated by the Analog Input function block. The status of
the limit value process alarms is communicated to the automation system by means of the
following parameters:
– HI_ALM, HI_HI_ALM
– LO_ALM, LO_LO_ALM
Transducer
Block
25 °C
-10
150
°C
77 °F
14
°F
302
OUT
PV_SCALE OUT_SCALE
0
0
100
100
%
tempe-
rature
Analog Input Function Block
–10 ... 150 °C
ENDRESS+HAUSER
SMARTECS
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CAL
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–

System integration Smartec S CLD132/134 PROFIBUS-PA/-DP
18 Endress+Hauser
5.2 Cyclical data exchange (Data_Exchange)
The Smartec S provides the following modules as input data (data from transmitter to PLC)
for the cyclic data telegram:
Input data (data from transmitter to PLC)
• Main Process Value
This byte transfers the main measured value.
• Temperature
This byte transfers the temperature.
Structure of the input data (Smartec S to PLC)
The input data is transferred from the transmitter in the following structure:
Outut data (data from PLC to transmitter)
• MRS (Measuring Range Switch)
This byte transfers the external hold and the parameter set switch from the PLC to the
transmitter.
Structure of the output data (PLC to Smartec S)
The output data of the PLC for device control have the following structure:
Index
Input
Data
Data Access Data format Configuration data
0...4 Analog Input Block 1
"Main Process Value"
read Measured value (32-bit floating point
number; IEEE-754)
Status byte (0x80) = Ok
0x42, 0x84, 0x08, 0x05 or
0x42, 0x84, 0x81, 0x81 or
0x94
5...9 Analog Input Block 2
"Temperature"
read Measured value (32-bit floating point
number; IEEE-754)
Status byte (0x80) = Ok
0x42, 0x84, 0x08, 0x05 or
0x42, 0x84, 0x81, 0x81 or
0x94
Index
Input
Data
Data Access Data format Configuration data
0MRS writeByte
Status byte (0x80) = Ok
0x42, 0x84, 0x08, 0x05 or
0x42, 0x84, 0x81, 0x81 or
0x94

Smartec S CLD132/134 PROFIBUS-PA/-DP System integration
Endress+Hauser 19
PROFIBUS processes data in hexadecimal code and converts them into 4 bytes (each 8 bits,
4x8=32 bits).
In accordance with IEEE 754, a number has three components:
•Sign(S)
The sign requires exactly 1 bit and has the values 0 (+) or 1(-).
Bit 7 of the 1st byte of a 32-bit floating-point number defines the sign.
• Exponent
The exponent is composed of bits 6 to 0 of the 1st byte plus bit 7 of the 2nd byte (= 8 bits).
• Mantissa
The remaining 23 bits are used for the mantissa.
Explanation of measuring range switch (MRS)
Byte 1 Byte 2 Byte 3 Byte 4
7654321076543210765 4 3 21076543210
V
Z
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
2-
1
2-
2
2-
3
2-
4
2-
5
2-
6
2-
7
2-
8
2-
9
2-
10
2-
11
2-
12
2-
13
2-
14
2-
15
2-
16
2-
17
2-
18
2-
19
2-
20
2-
21
2-
22
2-
23
SExponent Mantissa
Formula (IEEE 754): Value = (-1)VZ * 2(exponent - 127) * (1 + Mantissa)
Example: 40 F0 00 00 = 0 10000001 1110000 00000000 00000000
(hexadecimal) Byte 1 Byte 2 Byte 3 Byte 4
Value =
=
=
=
(-1)0* 2(129 - 127) * (1 + 2-1 + 2-2 + 2-3)
1 * 22* (1 + 0.5 + 0.25 + 0.125)
1 * 4 * 1.875
7.5
MRS Function
reserved reserved reserved reserved reserved
E2 E1
decimal
hexadecimal
number of binary inputs = 2; E1 and E2 active
- - - - - 0 0 0 0x00 MRS 1
- - - - - 0 1 1 0x01 MRS 2
- - - - - 1 0 2 0x02 MRS 3
- - - - - 1 1 3 0x03 MRS 4
number of binary inputs = 1; E1 and E2 active
- - - - - 0 0 0 0x00 MRS 1
- - - - - - 1 1 0x01 Hold on
- - - - - 1 0 2 0x02 MRS 2
number of binary inputs = 0; E1 active
- - - - - - 0 - 0x00 Hold off
- - - - - 1 1 0x01 Hold on

System integration Smartec S CLD132/134 PROFIBUS-PA/-DP
20 Endress+Hauser
Customizing the cyclic data telegram
You can customize the cyclic telegram to better meet the requirements of a process. The
tables above represent the maximum contents of the cyclic data telegram.
If you do not want to use all output variables of the transmitter, you can use the device
configuration (CHK_CFG) to eliminate individual data blocks from the cyclic telegram via the
PLC software. Shortening the telegram improves the data throughput rate of a PROFIBUS
system. You should only keep those blocks active which you process further in the system.
You can do this by means of a ”negative” selection in the configuration tool.
To achieve the correct structure of the cyclic data telegram, the PROFIBUS master must send
the identification FREE_PLACE (00h) for the non-active blocks.
Status codes for the OUT parameter of the Analog Input block
Status code Device status Meaning Limits
0x00
0x01
0x02
0x03
BAD non-specific OK
LOW_LIM
HIGH_LIM
CONST
0x04
0x05
0x06
0x07
BAD configuration error OK
LOW_LIM
HIGH_LIM
CONST
0x0C
0x0D
0x0E
0x0F
BAD device failure OK
LOW_LIM
HIGH_LIM
CONST
0x10
0x11
0x12
0x13
BAD sensor failure OK
LOW_LIM
HIGH_LIM
CONST
0x1F BAD out of service CONST
0x40
0x41
0x42
0x43
UNCERTAIN non-specific OK
LOW_LIM
HIGH_LIM
CONST
0x47 UNCERTAIN last usable value CONST
0x4B UNCERTAIN substitute set CONST
0x4F UNCERTAIN initial value CONST
0x50
0x51
0x52
0x53
UNCERTAIN sensor conversion not
accurate
OK
LOW_LIM
HIGH_LIM
CONST
0x5C
0x5D
0x5E
0x5F
UNCERTAIN configuration error OK
LOW_LIM
HIGH_LIM
CONST
0x60
0x61
0x62
0x63
UNCERTAIN simulated value OK
LOW_LIM
HIGH_LIM
CONST