This document is a translation of the original document.
All rights to this documentation are reserved by Pilz GmbH & Co. KG. Copies may be made
for internal purposes.
Suggestions and comments for improving this documentation will be gratefully received.
Pilz®, PIT®, PMI®, PNOZ®, Primo®, PSEN®, PSS®, PVIS®, SafetyBUS p®, SafetyEYE®,
SafetyNET p®, the spirit of safety® are registered and protected trademarks of
Pilz GmbH & Co. KG in some countries.
11000IntroductionIntroduction1-1.1Validity of docume ntation1100Validit y of documenta tion1-][BA Einf Gültigkeit_(T)
This documentation is valid for the products PSSu E S 2AO I and
Einf Einleitung
][Bildunterschrift ST-AO
1.1.1Retaining the documentation
Retaining the documentation1-Einf Aufbewahren
PSSu E S 2AO I-T. It is valid until new documentation is published.
This operating manual explains the function and operation, describes
the installation and provides guidelines on how to connect the product .
Electronic module with analogue outputs for standard applications
This documentation is intended for instruction and should be retained
for future reference.
1.1.2Terminology: System environment A and B
Terminology: System environment A and B1-][BA Einf Begriffsdefinition Sys A + B
The PSSu system can be used in two different system environments.
The module's application area is described in the chapter "Intended
Use" of the manual.
The distinction is made between
PSSu in system environment A
PSSu in system environment B
The distinction is based on the application area of the PSSu system.
PSSu in system environment A may be used in the
Decentralised system PSSu I/O with SafetyBUS p
Decentralised system PSSu I/O with ST fieldbuses such as CANopen,
DeviceNet
Not in the automation system PSS 4000
PSSu in system environment B may be used in the
Automation system PSS 4000, e.g. with the
– Decentralised system PSSu I/O with SafetyNET p
– Control system PSSu PLC
– Control system PSSu multi
1.3Definition of symbols1300Definition of symbols1-Einfhrung Zeichen
Information that is particularly important is identified as follows:
DANGER!
This warning must be heeded! It warns of a hazardous situation
that poses an immediate threat of serious injury and death and
indicates preventive measures that can be taken.
WARNING!
This warning must be heeded! It warns of a hazardous situation
that could lead to serious injury and death and indicates preventive measures that can be taken.
CAUTION!
This refers to a hazard that can lead to a less serious or minor
injury plus material damage, and also provides information on
preventive measures that can be taken.
NOTICE
This describes a situation in which the product or devices could
be damaged and also provides information on preventive measures that can be taken.
INFORMATION
This gives advice on applications and provides information on
special features, as well as highlighting areas within the text that
are of particular importance.
The base modules are the carrier units for the electronic modules and
are used to connect the field wiring. The electronic modules are inserted
on to the base modules and determine the module's function.
Details of the base modules that can be used are available in the chapter
entitled “Intended Use”.
– Screw terminals or
– Cage clamp terminals
2.1.1Module features
Module features2-Geraetemerkmale_Modul_Zusatz BA Einleitung_alt
][Merkmale_Ein_Aus ST-AO 2 xI
][Merkmale_LED ST -AO
][Merkmale_Zusatz ST-Module Sys A + B
][Geraetemerkmal_T
The module has the following features:
2 analogue current outputs
Configurable current ranges:
– 0 ... 20 mA single-pole, referenced to earth (single-ended)
– 4 ... 20 mA single-pole, referenced to earth (single-ended)
Resolution: 12 bit
LEDs for:
– Operating status per output
– Module error
For standard applications in system environment A and B
Coated version of the module:
PSSu E S 2AO I-T: for increased environmental requirements
33000SafetySafety3-3.1Intended use3100Intended use3-][Geräteb eschreibung ST-Mo dule Sys A + B
][Gertebeschreibung ST-AO
Bestimm_Verwend_ Zusatz-(T)
Bestimmung/Gertebeschreibung_Ausschluss
The module may be used for standard applications in system environment A and B.
The module provides analogue outputs. It may be used as an output
module for standard functions.
The module PSSu E S 2AO I-T is suitable for use where there are increased environmental requirements (see Technical Details).
Intended use includes making the electrical installation EMC-compliant.
Please refer to the guidelines stated in the "PSSuniversal Installation
Manual". The module is designed for use in an industrial environment. It
is not suitable for use in a domestic environment, as this can lead to interference.
The following is deemed improper use in particular:
Any component, technical or electrical modification to the module
Use of the module outside the areas described in this manual
Use of the module outside the technical details (see chapter entitled
"Technical Details")
INFORMATION
The module is supported by
PSSuniversal Configurator and PSSuniversal Assistant from
Version 1.4.0
PAS4000 from Version 1.1.1
– We recommend that you always use the latest version
(download from www.pilz.de).
The PSSu E S 2AO I module may be used in conjunction with the following base modules:
PSSu BP 1/8S
PSSu BP 1/8C
PSSu BP 1/12S
PSSu BP 1/12C
PSSu BP-C 1/8S
PSSu BP-C 1/8C
PSSu BP-C 1/12S
PSSu BP-C 1/12C
The products may only be assembled, installed, programmed, commissioned, operated, maintained and decommissioned by competent persons.
A competent person is someone who, because of their training, experience and current professional activity, has the specialist knowledge required to test, assess and operate the work equipment, devices,
systems, plant and machinery in accordance with the general standards
and guidelines for safety technology.
It is the company's responsibility only to employ personnel who:
Are familiar with the basic regulations concerning health and safety /
accident prevention
Have read and understood the safety guidelines given in this descrip-
tion
Have a good knowledge of the generic and specialist standards ap-
plicable to the specific application.
3.2.2Warranty and liability
Warranty and liability3-Sich Gewhrleistung
3.2.3Disposal
Disposal3-Si ch Entsorgung
All claims to warranty and liability will be rendered invalid if:
The product was used contrary to the purpose for which it is intended
Damage can be attributed to not having followed the guidelines in the
manual
Operating personnel are not suitably qualified
Any type of modification has been made (e.g. exchanging compo-
nents on the PCB boards, soldering work etc.).
In safety-related applications, please comply with the mission time t
M
in the safety-related characteristic data.
When decommissioning, please comply with local regulations regard-
ing the disposal of electronic devices (e.g. Electrical and Electronic
Equipment Act).
Function description4-][Funktionsbeschreibung Module Supply
Module supply
][Funktionsbeschreibung_Peri ST-AO
][Funktionsbeschreibung BA Einleitung ST-AO
The module supply provides the module with voltage.
Periphery supply
The supply for the outputs is generated from the periphery supply.
The periphery supply and the outputs are galvanically isolated.
The output signals for each output are transmitted to the output module
via the ST module bus. The resolution is 12 bits (4095 steps). Additional
signal processing can be defined using the system software (see schematic representation of signal processing). The individual steps are described in the "Configuration" section.
All the configuration data is stored in the head module and is assigned
to the output module on restart. This way the configuration data is retained even if you change the output module.
There are three options for configuring the module:
Via a fieldbus without the modular device description file
Without the modular device description file it is only possible to configure the input or output range. All other configuration details have
default values.
Via a fieldbus with the modular device description file
With a modular device description file it is possible to configure all the
values.
Via the USB port of the head module, using the PSSuniversal Config-
urator
All the values can be configured using the PSSuniversal Assistant.
Any configuration via the USB port will overwrite the configuration
made via the fieldbus.
4.2.1Current range
Current range4-][Funktionsbeschreibung_BA_Konfig Bereich ST-Aus 2xI
4.2.2Data formats
Data formats4-][Funktionsbeschrei bung_BA_Konfig Format ST-Aus 2xI
If a module has been configured via the head module's USB port, it is
locked and cannot be overwritten by the fieldbus. This lock can be deactivated again in the PSSuniversal Configurator.
You can configure the following current ranges per module:
0 ... 20 mA single-pole, referenced to earth (single-ended)
4 ... 20 mA single-pole, referenced to earth (single-ended)
The way in which the analogue value is displayed depends on the voltage range, on scaling and on the data format. The following examples
show the relationship between the values with default scaling.
You can configure the following data formats:
Two's complement (default)
The digital values are transferred with 15 bits plus a sign bit (MSB).
The MSB is "1" with negative values and "0" with positive values.
Sign and magnitude representation
The digital values are transferred with 15 bits plus a sign bit (MSB).
The MSB is "1" with negative values and "0" with positive values. With
negative values there is a distinction between sign and magnitude
representation and two's complement representation.
Formation of magnitude option
Negative digital values are converted into positive values of equal
magnitude.
As the module's resolution is 12 bits plus sign bit, the three least significant bits have no significance for the analogue value.
Analogue value and typical digital value with a current range of
0 ... 20 mA, two's complement or sign and magnitude representation:
Analogue value of currentDecimal digital valueBinary digital valueHexadecimal digital value
0 mA00000 0000 0000 00000000
10 mA16 3840100 0000 0000 00004000
20 mA32 7670111 1111 1111 11117FFF
Analogue value and typical digital value with a current range of
4 ... 20 mA, two's complement or sign and magnitude representation:
H
H
H
Analogue value of currentDecimal digital valueBinary digital valueHexadecimal digital value
4 mA00000 0000 0000 00000000
12 mA16 3840100 0000 0000 00004000
20 mA32 7670111 1111 1111 11117FFF
Analogue value and typical digital value with a current range of
0 ... 20 mA plus default values:
Analogue value of currentDecimal digital value
0 mA0
10 mA16 384
20 mA32 767
Analogue value and typical digital value with a current range of
4 ... 20 mA plus default values:
Analogue value of currentDecimal digital value
4 mA0
12 mA16 384
20 mA32 767
4.2.3.4User scaling
User scaling4-][Funktionsbeschreibung_BA_Konfig Skalier Anwend Aus
User scaling is an additional scaling level prior to manufacturer scaling.
You can use this scaling to correct local influences. The function is the
same as that of manufacturer scaling:
y = (a
/ 256D * x) + b2 or
2
y = (a2 / 100H * x) + b
2
a2 = Amplification factor * 256
User scaling is deactivated in the default setting. The default value for
offset is 0. The default value for gain is 256
Example calculation4-][Funktionsbeschrei bung_BA_Konfig Skalier Bsp Aus-I
Task:
If the PIO shows a decimal value of 20 000, there should be 20 mA at the
output. User scaling should be used in this case (Gain a
scaling should not be changed. All numbers are decimals.
Solution:
User scaling
/ 256 * x) + b
y = (a
2
and manufacturer scaling
y = (a
/ 256 * x) + b
1
act consecutively, giving:
y = (a
/ 256 * ((a2 / 256 * x) + b2)) + b1 or:
1
* a2 * x / 65536) + (a1 * b2 / 256) + b
y = (a
1
). Manufacturer
2
2
1
1
With default values for a1 = 32, b1 = 0 and the default value b2 = 0:
* x / 2048
y = a
2
= y * 2048 / x
a
2
Due to the hardware calibration the converter's output range is divided
so that the 20 mA end point is assigned the value x = 4095. With the default values y = 4095 and x= 20,000 the result is:
Gain a
Switch-on value4-][Funktionsbeschreibung _BA_Konfig Einsc halt ST-Aus 2xI
When the PSSuniversal is switched on, the output assumes the switchon value until the module receives data for the value of the output. You
can configure the outputs per channel with the manufacturer switch-on
value (default) or you can use a freely definable user switch-on value.
The manufacturer switch-on value is:
0 mA for the current range 0 … 20 mA and
4 mA for the current range 4 … 20 mA.
If the module does not receive any data from the module bus for 50 ms,
the outputs are reset to the switch-on value.
Switch-on values are entered in the system software as decimal vaues.
With default scaling, the decimal value (n) is calculated from the analogue value at the output (I
Current range 0 … 20 mA:
n = 32 767 * I
Current range 4 … 20 mA:
n = 32 767 * (I
/ 20 mA
Start
– 4 mA) / 16 mA
Start
) as follows:
Start
example:
Switch-on values as an analogue value at the output (I
Start
):
– Switch-on value for channel 1 is to be 8 mA.
– Switch-on value for channel 2 is to be 15 mA.
Entry in the system software at
Current range 0 … 20 mA:
– Switch-on value 1 corresponds to 13 107
– Switch-on value 2 corresponds to 24 576
Entry in the system software at
Current range 4 … 20 mA:
– Switch-on value 1 corresponds to 8 192
– Switch-on value 2 corresponds to 22 528
The relationship between the switch-on value and the actual current at
the output is dependent on the scaling. The module sets the current,
which corresponds to the switch-on voltage after scaling. Please refer
to the "Scaling" section in this manual.
Summary and overview4-][Funktionsbeschreibung_BA_Zusatz Tabelle ST-Aus 2xI
The module has the following configuration options:
Default value
Output range00 mA ... 20 mA
Manufacturer scaling active1/TRUEActivated
Manufacturer scaling offset0Offset: Magnitude 0
Manufacturer scaling gain32
User scaling active0/FALSEdeactivated
User scaling offset0Offset: Magnitude 0
User scaling gain256
Switch-on value active0/FALSEManufacturer switch-on value active
Manufacturer switch-on value00 mA / 4 mA on switch-on
User switch-on value00 mA / 4 mA on switch-on
Sign and magnitude representation
active
Formation of magnitude active0/FALSEdeactivated
Output DAC raw value only0/FALSEdeactivated
55000InstallationInstallation5-5.1General installation guidelines5100General installation guidelines5-][Montage BA E-Modul Allgemein
Montage_EMV ESD
5.1.1Dimensions
Dimensions5-][Abmessungen 1xR + 1xRL
Please also refer to the PSSuniversal Installation Manual.
CAUTION!
Damage due to electrostatic discharge!
Electrostatic discharge can damage components. Ensure
against discharge before touching the product, e.g. by touching
an earthed, conductive surface or by wearing an earthed armband.
5.3Inserting and removing an electronic module5300Inserting and removing an electronic module5-][Elektronikmodul stecken und ziehen
Please note:
Only insert on to base modules that are already installed.
Preferably these base modules should be ready wired.
Electronic modules with outputs may only be inserted and removed
when the load is switched off. Unforeseeable error reactions may be
triggered if modules are inserted and removed under load.
When an electronic module is plugged into a base module for the first
time, one part of the coding element remains on the electronic module, while its counterpart is fixed on to the base module. This is how
the base module is coded.
The mechanics of the electronic modules are designed for 50 plug in/
out cycles.
5.3.1Inserting an electronic module
Inserting an electronic module5-][Elektronikmodul stecken
Procedure:
The electronic module must audibly lock into position [1].
Mark the electronic module using the labelling strips [2].
– Insert the screwdriver [4] into the square hole [1].
– Insert the stripped cable into the round fixing hole [2], as far as it
will go [5].
– Pull out the screwdriver [6].
– Check that the cable is firmly seated.
][Modulverdrahtung el Sys A + B
Please note:
The minimum cable cross section for field connection terminals on the
2
base modules is 0.14 mm
The maximum cable cross section for field connection terminals is:
– Digital inputs: 1.5 mm
– Digital outputs: 2.0 mm
– Inputs/outputs on the counter modules: 1.5 mm
– Analogue inputs/outputs: 1.5 mm
– Communication cables: 1.5 mm
– Test pulse outputs: 1.5 mm
– Power supply: 2.5 mm
– Functional earth: 2.5 mm
77000OperationOperation7-7.1Messages71 00Messages7-][BA_Betri eb Störung LED "Err" Sys A + B
A module error is displayed via the "Err" LED (see section entitled "Display elements"), signalled to the head module and then entered in the
head module's
Error stack, with PSSu in system environment A
][BA_Betrieb Fehler ST-A O
Module errorExplanationRemedy
Start-up errorError as the PSSu system starts upChange faulty module.
Configuration errorIncorrect module type configured.The configured hardware registry does
ST communication errorError during ST communication Change faulty module.
Bus termination errorThere is no terminating plate or there is
Timeout error on the output No data has been received for the out-
Diagnostic log, with PSSu in system environment B.
The module can detect the following errors:
not match the actual hardware registry.
Install a terminating plate with inte-
a bad contact with the module bus.
put from the module bus for longer
than 50 ms.
grated end bracket or insert the base
modules together correctly.
Display elements for module diagnostics7-][BA_Anzeige LED Err
The module has an LED for displaying module errors (“Err” LED).
LEDKey
NameColourStatus
Err- - -No error
7.2.2Display elements for output status
Display elements for output status7-][BA_Anzeige LED 2AO
Each output is assigned an LED for displaying the output status (LEDs
“O0” and “O1”). The green LED lights up as soon as the module receives
data from the module bus that is to be output.
Application rangeStandard
Module's device code0510h
Number of ST output bits32
Support in system environment A
from ST firmware version for other head modules7
from ST firmware version PSSu H S PN1
from ST firmware version PSSu WR S IDN4
Support in system environment B
from head module ST firmware version1.0.0
Electrical data
Internal supply voltage (module supply)
Supply voltage range of module supply4.8 - 5.4 V
Module's current consumption43 mA
Module's power consumption0.22 W
Periphery's supply voltage (periphery supply)
Voltage range16.8 - 30.0 V
Module's current consumption with no load54 mA
Module's power consumption with no load1.29 W
Max. power dissipation of the module0.50 W
Outputs
Number of analogue outputs2
Type of analogue outputsCurrent
Output range0 .. 20mA, 4 .. 20mA
Resolution (without sign bit)12 Bit
Permitted loadsinductive, resistive
Max. permitted resistive load500 Ohm
Max. open circuit voltage14 V
Deviations from the measuring range limit value
Linearity error0.15 %
Output variable error at 25° C0.3 %
Temperature coefficient0.02 %/K
Potential isolation between output and voltage for the in-
ternal module bus
Potential isolation between output and periphery supplyyes
Times
Typ. processing time1.0 ms
Environmental data
Climatic suitabilityEN 60068-2-14, EN 60068-2-1, EN 60068-2-2,
Ambient temperature in accordance with EN 60068-2-140 - 60 °C
Storage temperature in accordance with EN 60068-2-1/-2 -25 - 70 °C
Climatic suitability in accordance with EN 60068-2-30,
EN 60068-2-78
Condensationno
Max. operating height above sea level 5000 m coated version (-T)
EMCEN 61000-4-2, EN 61000-4-3, EN 61000-4-4,
yes
EN 60068-2-30, EN 60068-2-78
-40 - 70 °C coated version (-T)
-40 - 70 °C coated version (-T)
93 % r. h. at 40 °C
yes coated version (-T)
EN 61000-4-5, EN 61000-4-6, EN 61000-6-2,
EN 61000-6-4
Vibration to EN 60068-2-6
Frequency10 - 150 Hz
Max. acceleration1g
Shock stress
EN 60068-2-2715g
11 ms
EN 60068-2-2910g
16 ms
Protection type in accordance with EN 60529
Mounting (e.g. cabinet)IP54
HousingIP20
TerminalsIP20
Airgap creepage in accordance with EN 60664-1
Overvoltage categoryII
Pollution degree2
Mechanical data
Housing material
FrontPC
BottomPC
CodingPA
Dimensions
Height76.0 mm
Width12.6 mm
Depth60.2 mm
Weight38 g
Mechanical coding
TypeE
Colourdark grey
In many countries we are
represented by our subsidiaries
and sales partners.
Please refer to our homepage
for further details or contact our
headquarters.
InduraNET p
®
, Pilz
®
, PIT
®
, PMCprotego
®
, PMI
®
, PNOZ
®
, Primo
®
, PSEN
®
, PSS
®
, PVIS
®
, SafetyBUS p
®
, SafetyEYE
®
, SafetyNET p
®
, the spirit of safety
®
are registered and protected trademarks
of Pilz GmbH & Co. KG in some countries. We would point out that product features may vary from the details stated in this document, depending on the status at the time of publication and the scope
of the equipment. We accept no responsibility for the validity, accuracy and entirety of the text and graphics presented in this information. Please contact our Technical Support if you have any questions.
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