Baumer Ident OIS-LSRSER Identification System User Manual Manual

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Document Description	Manual
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Date Submitted	2003-05-27 00:00:00
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Creation Date	2002-08-22 17:27:56
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Document Lastmod	2002-08-22 17:28:00
Document Title	Manual

OIS-L
OIS-L RF/ID System
Read/Write – Short Range
System Manual
Contents
Reg. Nr. LM.0401.EN
Issue 1 / April 2002
- Friday, 26. April 2002 Baumer Ident GmbH, Hertzstrasse 10, D-69469 Weinheim,
Deutschland, Tel +49 6201 9957-0, Fax +49 6201 9957-99
www.baumerident.com
Subject to alteration without prior notice.
© Copyright Baumer Ident GmbH 2002
Printed in Germany
Baumer Ident GmbH
Read/Write Short R ange System Manual
Page 2 of 59
Contents
Table of Contents
1 Safety precautions .............................................................................................. 7
2 Foreword.............................................................................................................. 11
2.1 General Information........................................................................................ 11
2.2 FCC rules for the USA .....................................................................................11
2.3 Central units covered by this manual............................................................. 11
2.4 Documents av ailable ......................................................................................12
2.5 Available Central Units ...................................................................................13
3 System description ...........................................................................................15
3.1 Introduction....................................................................................................15
3.2 System Principles ..........................................................................................15
3.3 Typical System Configuration ........................................................................16
3.4 Part Number Identification (Type) ...................................................................17
3.5 Basic Functionality Ov erview .........................................................................18
4 System Components ........................................................................................19
4.1 Central units...................................................................................................19
4.1.1 Common Technical Details of Central Units..............................................19
4.1.1.1. Electronic Design ....................................................................... 19
Electronic Design – Multiplexer Extension ................................................ 20
4.1.1.2.1. Common parts of every central unit ...................................20
4.1.1.2.2. Communication modules...................................................21
4.1.2 77LA04/2-SER, -MD, -ET, -DP ................................................................22
4.1.2.1. Connector pin assignment........................................................... 22
4.1.2.1.1. Power supply, Terminal and Digital I/Os..............................22
4.1.2.1.2. Host interface...................................................................23
4.1.2.2. System Diagnostics.................................................................... 25
4.1.2.3. Technical Data ........................................................................... 26
Central Unit 77LA04/4 –SER, -DP ...................................................................27
4.1.3.1. Connector pin assignment........................................................... 27
4.1.3.1.1. Power supply, Terminal and Digital I/Os..............................27
4.1.3.1.2. Host interface...................................................................28
4.1.3.2. System Diagnostics.................................................................... 30
4.1.3.3. Technical Data ........................................................................... 31
4.1.4 Central Unit 77LA04/2-IBS .....................................................................32
4.1.4.1. Connector pin assignment........................................................... 32
4.1.4.1.1. Power supply, Terminal and Digital I/Os..............................32
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Contents
4.1.4.1.2. Host interface .................................................................. 33
4.1.4.2. Status display of Interbus-S......................................................... 34
4.1.4.2.1. Monitor (77LA04-IBS only!)............................................... 35
4.1.4.3. System Diagnostics.................................................................... 35
4.1.4.4. Technical Data ........................................................................... 36
4.2 The Antennae................................................................................................. 37
4.2.1 Standard Frame Antennae ..................................................................... 38
4.2.1.1. Common data for all frame antennae........................................... 39
4.2.2 Special Antennae .................................................................................. 39
4.2.2.1. Common data for all special antennae......................................... 39
4.2.2.2. 77LS05 ..................................................................................... 39
4.2.2.3. 77LS06 ..................................................................................... 39
4.2.2.4. 77LS07 ..................................................................................... 40
4.2.2.5. 77LS13 ..................................................................................... 40
4.2.2.6. 77LS14 ..................................................................................... 40
4.3 Data Tags ....................................................................................................... 41
4.3.1 Accessing Data Tags.............................................................................. 41
4.3.1.1. Basic Definitions......................................................................... 41
4.3.1.2. Read Only Tags.......................................................................... 41
4.3.1.3. 256 Bit Read/Write Tag Type....................................................... 42
4.3.1.4. 2kBit Read/Write Tag Type.......................................................... 42
5 Hints on Installation and System Design.................................................... 45
5.1 Basic considerations ..................................................................................... 45
5.2 The antenna lobe ........................................................................................... 45
5.3 Useful antenna field....................................................................................... 45
5.3.1 Width ∅ D and W and reading range at distance Ha ................................. 47
5.3.2 Operational Read/Write range Ha ........................................................... 47
5.3.3 Peak Read/Write range Hmax................................................................ 48
5.3.4 Static applications.................................................................................. 49
5.3.5 Dynamic applications............................................................................. 49
5.4 Calculating the Passing Speed ...................................................................... 49
5.4.1 Communication: Reader – Antenna – Data Tag ....................................... 50
5.4.1.1. Read Only Tag – 76LDxxx ......................................................... 50
5.4.1.2. General formulas for Read / Write Tag Types ............................... 50
5.4.2 Communication: Reader – Host (PC or PLC)........................................... 51
5.4.2.1. Serial communication time .......................................................... 51
5.4.3 Correlation of Passing Speed vs. Amount of Read/Write Data .................. 51
5.4.3.1. Component selection.................................................................. 51
5.5 Installation Guidelines ................................................................................... 53
5.5.1 Metal-free environment .......................................................................... 54
5.5.2 Mounting examples................................................................................ 55
5.5.3 Distance between antennae or tags........................................................ 56
Baumer Ident GmbH
Read/Write Short R ange System Manual
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Contents
5.6 EMC Guidelines..............................................................................................57
5.6.1 General.................................................................................................57
5.6.2 Shielding concept ..................................................................................57
6 FAQ’s.....................................................................................................................59
6.1 Digital Input / Trigger ......................................................................................59
6.2 Miscellaneous ................................................................................................59
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Contents
Baumer Ident GmbH
Read/Write Short R ange System Manual
Page 6 of 59
Safety prec autions
1 Safety precautions
This product contains components that are sensitive to electrostatic discharges. Please
observe the special instructions for their protection. Incorrect handling can damage the
unit and cause the invalidation of the warranty.
Minimum safety precautions against electrostatic discharge:
•
Establish earth contact before you touch the unit. For example, touch the earthing screw on the unit.
even better: Use an antistatic ribbon and earth yourself permanently for the time you handle the unit.
•
Avoid unnecessary contact with the unit connectors and assemblies inside the unit.
•
Only open the unit if the operational settings (as described in the manual) expressly require this.
•
Use antistatic tools for the setting of the unit. (Warning: Do not touch life-threatening voltages with
these tools).
•
Do not store unit and components without protective packaging.
•
Only remove unit and components from the packaging immediately prior to installation.
These notes are not sufficient to guarantee complete protection from electrostatic discharges! We
recommend the use of suitable protective equipment.
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Safety prec autions
Connections / Power Supply
Safety Instructions
The system described in this manual is for
exclusive operation by trained employees.
Only qualified personnel that know the potential dangers involved should perform the
installation, settings, maintenance and repair
of the units used.
Safety Documents
This OIS-L system was designed, tested and
supplied in perfect condition according to document IEC348 Safety Requirements for Electronic
Units of Class 1.
Operational Safety
The correct and safe use of these systems assumes that operating and service personnel follow the safety measures described in the manual alongside the generally acceptable safety
procedures.
If there is a possibility that safe operation cannot
be guaranteed the system must be switched off
and secured against accidental use. Then the
service unit responsible must be informed.
The supply circuits must comply with the conditions set out for the SELV circuits (see
EN60950).
The signal circuits must comply with the conditions set out for the SELV circuits (see
EN60950).
Use screened cables for the power supply. This
is the only way to achieve the prescribed EMC.
During maintenance damage could occur if
printed circuit boards or cables are connected or
disconnected whilst the power supply is still on.
Therefore only work on the connection and the
components when they are not live.
SELV – Safety Extra Low Voltage – Protective measure against dangerous body currents, formerly: protective first voltage range
EMC – Electromagnetic Compatibility,
Fuses
Only experts who are aware of the dangers involved may replace the fuses. It must be ensured that only fuses of the required current rating and the correct type are used for replacement. The use of repaired fuses and/or shortcircuiting the fuse holders is prohibited.
Condensing Water / Change of Temperature
Moving the systems from a cold to a warm environment could lead to dangerous situations due
to condensation. Therefore it must be ensured
that the system can adjust itself to the warmer
temperature.
Opening the Cov ers or the Housing
Do not open the housing. There is no need to
open the housing in order to set the series 77
reader devices. The unit does not have any internal setting elements or displays. All settings
are performed via the test terminal port.
The internal parts of the unit, especially the
printed circuit boards must be protected against
oil, moisture and air contamination. When removing the protective covers make sure that no
mechanical damage of the sensitive electronics
occur or metal objects (nuts, washers, etc) fall
into the unit. Therefore do not open the unit.
Earthing
Before establishing any connections the housing
of the system must be earthed.
Baumer Ident GmbH
Spare Parts
We recommend that only personnel, original
products, spare and replacement parts authorised by Baumer Ident be used for installation,
service and repair. Otherwise Baumer Ident
does not accept any responsibility for materials
used, work carried out or possible consequences.
Electrostatic Discharges
Semi-conductors of the type MOS or CMOS as
well as two-pin types and precision resistance
are extremely sensitive to ESD. All components,
printed circuit boards and auxiliary systems
should therefore always be classed as sensitive
to electrostatic discharges.
Before opening the cover the unit should be
placed onto an ESD-protected surface. As with
all work on modern electronic modules the use
of ESD clamps and ESD mats during work on
the unit is recommended.
•
Sufficiently protect all printed circuit boards
that were removed from the unit from damage.
Read/Write Short R ange System Manual
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Safety prec autions
•
Observe all normal precautions for the use
of tools.
blies (electronic units and sensors) should be
disconnected.
•
Use ESD-protected packaging material.
Earth the test units.
Never use measuring units with low impedance
for measuring or testing systems with semiconductor components. Never use high voltage
testing units or dielectric test units to test systems with semi-conductor components.
Baumer Ident does not accept returns of products where the regulations concerning the ESD
precautions and protective packaging materials
were not followed.
ESD – Electrostatic Discharge
When it becomes necessary to check the isolating properties of the field wiring, the assem-
Page 9 of 59
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Safety prec autions
Baumer Ident GmbH
Read/Write Short R ange System Manual
Page 10 of 59
Foreword
2 Foreword
2.1 General Information
2.2 FCC rules for the USA
This manual is intended to provide the user with
assistance in product selection and project planning for the OIS-L Short Range inductive identification system. All relevant product data as well
as guidelines for the correct product combinations and installation are included.
Any changes or modifications of the OIS-L system
not expressly approved by Baumer Ident could
void the user's authority to operate the equipment.
This description is valid for all different
Read/Write devices of the OIS-L Series 77. A
special controller like the PC-Card Read/Write
device only supports the subset command set,
presented in this document.
News on products and applications for our identification systems are updated on a regular basis
and are available under the following Internet
address:
http://www.baumerident.com
The OIS-L system consisting of central unit
77LA04/2-SER and antennae 77LS03 complies
with the rules of FCC. Only this system configuraton ist allowed to operate in USA.
It ´s FCC ID is: PNTOIS-LSRSER
The device complies with part 15 of the FCC rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference,
and (2) this device must accept any interference received, including interference that may cause undesired operation.
The connections to the antennae, to the power
supply and to the host computer must be done with
shielded cables.
The antenna connector contains speciel parts to set
the resonance of the antenna at 125 KHz.This can
only be done by Baumer Ident in Weinheim.
2.3 Central units covered by this manual
Central units for 2 antennae
Designation
Type
Description
Order code
77LA04/2-SER
ZE.77.SR.02.11
serial interface RS232/422/485 configurable
by user
9633-001-SER
77LA04/2-SER-ET ZE.77.SR.02.13
serial interface RS232/422/485 configurable
by user, version for use at extended temperatures: -20 °C … 50 °C
DD100039
77LA04/2-MD
ZE.77.SR.02.12
serial interface pre-configured for RS485 mul- DD100116
tidrop use
77LA04/2-IBS
ZE.77.SR.02.21
Interbus-S interface
DD100110
77LA04/2-DP
ZE.77.SR.02.31
Profibus DP interface
9633-001-DP
Page 11 of 59
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Foreword
Central units for 4 antennae
Designation
Type
Interface
Order code
77LA04/4-SER
ZE.77.SR.04.11
serial interface RS232/422/485 configurable
by user
DD100129
77LA04/4-DP
ZE.77.SR.04.31
Profibus-DP interface
DD100173
77LA04/4-MD
ZE.77.SR.04.12
serial interface pre-configured for RS485 mul- DD100201
tidrop use
The central unit 77LA04/4 is an extension of the
77LA04/2 controller. This central unit can control
up to four antennae in a multiplexing arrangement.
Data Sheets
2.4 Documents
available
Manuals
Central Units Short Range
LM.0401.EN
This document
Central Units Short Range
LD.0301.EN
Central Units Long Range
LD.0302.EN
Interbus-S Interface
LD.0303.EN
Profibus-DP Interface
LD.0304.EN
Standard Antennae (Short Range)
LD.0305.EN
Standard Data Tags
LD.0306.EN
Standard Antennae (Long Range)
LD.0307.EN
Special Frame Antennae
LD.0330.EN
Central Units Long Range
LM.0402.EN
Antenna 77LS05
LD.0331.EN
Interbus-S Interface
LM.0403.EN
Antenna 77LS06
LD.0332.EN
Profibus-DP Interface
LM.0404.EN
Antenna 77LS07
LD.0333.EN
Manual Handheld Reader 77HH03
LM.0405.EN
Antenna 77LS14
LD.0334.EN
Configuration Software Short
LM.0406.EN
Antenna 77LS13
LD.0335.EN
Mounting of special Ring Data Tags LM.0407.EN
Mounting of ring data tag into floor
LM.0408.EN
General papers
Serial Interface
LM.0409.EN
Our company profile
AB.0001.ED
Quick Start Guide [ Long Range ]
LM.0440.EN
Technical Product Overview
AB.0003.EN
Baumer Ident GmbH
Read/Write Short R ange System Manual
Page 12 of 59
Foreword
2.5 Available Central Units
Product
designation
Type
Description
77LA04/2-SER
ZE.77.SR.02.11
Central Unit, Read/Write, Short Range, for two Antennas,
Serial interface RS232/422/485 configurable by user
77LA04/2-MD
ZE.77.SR.02.12
Central Unit, Read/Write, Short Range, for two Antennas,
Interface pre-configured for RS485 Multidrop use
77LA04/2-SER-ET
ZE.77.SR.02.13
Central Unit, Read/Write, Short Range, for two Antennas,
Serial interface RS232/422/485 configurable by user, Version for use at extended temperatures: -20°C ... 50°C
77LA04/4-SER
ZE.77.SR.04.11
Central Unit, Read/Write, Short Range, for four Antennas,
Serial interface RS232/422/485 configurable by user
77LA04/2-IBS
ZE.77.SR.02.21
Central Unit, Read/Write, Short Range, for two Antennas,
Glass Fibre Interbus Interface
77LA04/2-DP
ZE.77.SR.02.31
Central Unit, Read/Write, Short Range, for two Antennas,
Profibus DP Interface
77LA02-SER
ZE.77.LR.01.11
Central Unit, Read/Write, Long Range, for one Antenna, Serial Interface RS232/422/485 configurable by user
77LA02-DP
ZE.77.LR.01.31
Central Unit, Read/Write, Long Range, for one Antenna,
Profibus DP Interface
76LA02-SER
ZE.76.LR.01.11
Central Unit, Read-only, Long Range, for one Antenna, Serial Interface, RS232/422/485
76LA02-DP
ZE.76.LR.01.31
Central Unit, Read-only, Long Range, for one Antenna, Profibus DP Interface
77HH03
ZE.77.HH.03
Handheld Unit, Read/Write, based on PSION workabout® or
alternativelly with Barcode Scanner
77PC01
ZE.77.PC.01.91
PC Card Type II Unit, Read/Write, for one Antenna
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Foreword
Baumer Ident GmbH
Read/Write Short R ange System Manual
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Sys tem description
3 System description
3.1 Introduction
3.2 System Principles
The OIS-L Series 77 is an inductive identification system, generally referred to as RF-ID. It
is intended for applications in logistics systems. The OIS-L standard system consists of
three units:
The OIS-L-system is a passive RF-system in the
lower 125 kHz frequency band (ca. 125 kHz).
•
Transponder with a Read/Write memory
•
Antenna for energy and data transmission
•
Central unit with analogue and digital data
processing
The OIS-L Series 77 Standard Range RF-ID
system is a family of products that have been
developed to meet the market demands for industrial identification products with a high degree of modularity to solve a variety of tasks in
logistics and other applications.
The programmable data tag consists of a CMOSChip with an EEPROM memory and a coil. The
reader, is made up of all of the components required for the transmission of energy and the reception of the demodulated signals from the tag.
The energy is transmitted to the tag via an alternating magnetic field, analogous with the principle
of a transformer.
If a transponder comes within the useful area of
the magnetic field it receives the required energy
it is then ready to receive commands, to either
store a code in memory or to send the contents of
all or a part of the memory.
System overview
The signals are detected (demodulated) by an
analogue circuit and passed on to the digital
circuitry. Here the microprocessor and related
software checks the data transmission, converts the code and in the event that the transmission was read the code is made available
to the host computer for further data processing.
and is particularly suited for industrial applications.
The chip requires a field voltage of about 3,5V
to become active. This tension is induced by
the alternating magnetic field. The data transmission is done by means of an amplitude
modulation, using the Manchester code.
The detection of 32 full oscillations, indicates
that one bit has been transmitted. This kind of
data transmission is very insensitive to external
disturbances from other electrical equipment
Page 15 of 59
The reading distance is dependant on the power
of the magnetic field and the exact frequency
tuning (compare radio reception). Normally an up-
Read/Write Short R ange System Manual
Baumer Ident GmbH
Sys tem description
per limit for this technology is set at 1 meter
(40") however for small tag/reader combinations these values are in the range 1 to 30
centimetres (0.5" - 12").
3.3 Typical System
Configuration
the size and shape of a credit card.
Although the majority of data tags would function
in combination with any of the antennae, we have
grouped them into logical groups highlighting the
desired combinations, that enable the user to
achieve tled information relating to the reading
distances for the various antennae/tag combinations are shown later in this document.
The OIS-L Series 77 Standard Range
Read/Write system consists of the central unit
77LA04-X and one or two short range antennae (selected from the 77 Series Antenna
range). The data tags can be either the fixed
code type (series 76) or the Read/Write type
(series 77): The Read/Write data tags come in
two different memory sizes, 256 bit or 2 kbit.
The following diagram shows an overview of
the standard products in the Read/Write system. The data tags come in differing shapes,
sizes, and housing materials. Some are coinshaped; others are packaged in PVC and are
76LA02-x
Frame Antennae
77LS04, 77LS09 are also available for long range, read
onl y, applications on request,
call for special offers
76LS61
Or equivalent series
76 type
Baumer Ident GmbH
Or equivalent series
76 type
Read/Write Short R ange System Manual
76LS62
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Sys tem description
3.4 Part Number Identification (Type)
General form: $$.NN.$$.$$.$$, where $ is a letter, and N is a number.
Explanation
In order to have a structured part numbering system the following definitions apply.
An existing part numbering system is already in circulation e.g. 77 LA04. These names are easy for the
existing user to identify, however they are not always unique to a particular product. An example would be
the part number 77LS03 this identifies an antenna but the version or tuning of this antenna is not included
in this part number.
Field No. Description
$$
Class of component
Possible Values
ZE: Central unit
AN: Antenna
KA: Cable
etc.
System group
76: Read only System
77: Read/Write System
$$
Subclass
LR: Long Range
SR: Short Range
HH: Hand-held reader or related component
PC: PC-Card Reader or related component
$$
Product denomination
00 … 99
For antennae: Indicator for antenna size/geometry
For central units (Field 1=ZE):
Number of antennae connectors
$$
Product modifi- 00 … 99
cations
For antennae: Indicates modifications like special tuning, or special
material etc., consecutively numbered
For central units (Field 1 = ZE) First digit:
1: serial Interface
2: Interbus-S
3: Profibus-DP
Second digit: indicates modification like different mounting holes, surface colour, special connectors, etc. Consecutively numbered
$$
Always = DT, for data tag
Indicates internal chip type
00: EM4102, read only
01: Hitag1, 2kBit
02: Hitag2, 256 bit
000 … 999
Related to coil size, tags with identical values in this field will have
identical communication range within air
Housing
00 … 99
For different materials or geometries, consecutively numbered
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Sys tem description
3.5 Basic Functionality Overview
Basic functionality ov erview
Central Unit
Antenna
Data Tags
77LA04/x-yy
ZE.77.SR.xx.yy
77LS01 … 77LS14
AN.77.SR.xx.yy
76LDxxx-yy, 77LDxxx-yyy
DT.0x.yyy.zz
Short Range R/W
Product designation:
Type:
Baumer Ident GmbH
Read/Write Short R ange System Manual
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Sys tem Components
4 System Components
system always operates reliably. Direct mounting
on vehicles in particular lift trucks is possible.
4.1 Central units
The Baumer Ident short range inductive identification system OIS-L has been developed with respect to the regulation EN 300330 class 2. Thus,
passive antennae connected to a central unit is
the basic system concept. Antennae can be easily
designed for customers request. No additional
approbation or certification of the complete system is necessary. By the technique of multiplexing, some central units can handle more than one
antenna.
The high protection class of all central units make
them ready to use within an industrial environment. Whether outdoor-use, rain or dust, the
Various bus interfaces including high layer software facilitate the connection to host systems for
engineers. The intelligent configuration software
provides easy installation and system start-up by
the customers qualified personnel. A special
Baumer Ident feature is the possibility of automatic on-site antenna adjustment by software.
This enables the optimisation of already installed
systems whereby the environment is automatically considered by the adjustment process.
The system works with EM4102, HiTag 1 and HiTag 2 chip transponders.
4.1.1 Common Technical Details of Central Units
4.1.1.1. Electronic Design
Block diagram of the central unit 77LA04/2
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Sys tem Components
4.1.1.2. Electronic Design – Multiplexer Extension
77LA04/4
77CU04
ANT1 (SC L DIN DOUT)
ANT2 (SC L DIN DOUT)
Se le ct
Led1
Led2
77LP04 (1)
77MP01
A nt 1
A nt 1
A nt 3
A nt 2
A nt 2
A nt 4
IC1
Reader Asic
IC2
Reader Asic
Ant
1+2
Select
A nt Led 1
A nt Led 3
Led 1
A nt Led
A nt Led
Led
Led
Led
Led 2
Led3
Led4
Led5
IC1
Reader Asic
Ant
3+4
IC2
Reader Asic
Ohne
Q2
77LP04 (2)
Electronic
Multiplexer
2:4
Controller
CPU and
HOST-Port
Analogue RF boards
125kHz
4MHz quartz based
Block diagram of the central unit 77LA04-04
4.1.1.2.1. Common
central unit
parts
of
every
Power supply
The processor board contains the power supply
in the form of a galvanically separated DC-DC
converter, operating between 18 and 36 V DC.
The converter provides the different internal tensions for the analogue board, the COM-module
and ancillary electronics. This converter is protected against polarisation errors.
The digital inputs and outputs (I/Os) are optocoupled.
The processor of the central unit handles the commands from a host computer (PC or PLC) as well
as the data transfer to and from the antenna. This
electronic circuitry consists of the following components:
•
Micro controller C515A-L24M or
•
Micro controller 80C515
•
System memory 32 kByte RAM
Analogue module
The analogue module handles the energy
transmission to the tag over the antenna and the
demodulation of the data signals received from
the data tag. The analogue board receives control signals, required for the communication with
the data tag, from the processor board. The
board contains two separate, identical circuits to
handle two separate antennae.
Programme memory
Processor board
A non-galvanically separated RS232 interface is
provided for the configuration of the central unit.
Digital I/Os
The two galvanically separated digital inputs have a
permissible input voltage of:
Baumer Ident GmbH
•
64 kByte EPROM
This memory contains the programme for the system self-test and the operating system
•
Serial EEPROM 32 kByte
This memory serves the purpose of storing the
configuration data. The data may be altered via the
terminal
Read/Write Short R ange System Manual
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Sys tem Components
`1'-signal 16 ... 36 V (max. 10 mA)
`0'-signal -2 ... +2 V
The above is valid when using an input resistor
of about 3kΩ .
TxD (3)
TA (6)
A (6)
GND (5)
TB (7)
B (7)
RxD (2)
RA (8)
RB (9)
The two galvanically separated digital outputs
have an allowed switching voltage of:
RS 232
10 ... 36 V / 0,05 A (50 mA)
RS 422
RS 485
See also the following section for further details.
Only one of these options may be connected at any
given time.
Terminal
The terminal interface is used for system configuration and diagnostics purposes. It is intended to be connected to a personal computer
running a terminal emulation software. The terminal is a RS232 interface. It is not galvanically
separated (not opto-isolated).
You must not connect any unused w ires!
77 COM-DP
4.1.1.2.2. Communication modules
The communication modules make up the system interface between the reader and a host
computer (PC or PLC).
The system has automatic interface detection so
that no setting is necessary.
The communication module 77COM-DP integrates
a Profibus-DP interface with maximally 12 Mbaud in
the memory area of the processor.
77COM-SER
77COM-IBS
The serial communication module 77COM-SER
integrates a UART of the type 16C550 as a serial interface in the respective memory area of
the processor. The driver-ICs are fed from a
DC/DC converter via galvanically separated
opto-couplers. They provide the following host
interfaces:
Page 21 of 59
upper connector IBS-OUT, lower connector IBS-IN
Interbus module and integrated SUPI3 controller
with 10 IBS words IN and 10 IBS words OUT. Connection with the OIS-L controller is via a serial interface.
Read/Write Short R ange System Manual
Baumer Ident GmbH
Sys tem Components
4.1.2 77LA04/2-SER, -MD, -ET, -DP
Di mensional drawing – 77LA04/2-SER, -SER-ET, -MD, -DP
4.1.2.1. Connector pin assignment
The supply circuits must comply w ith the requirements of the SELV circuits (see
EN60950).
A screened cable must be used for the power
supply. Only in that way the required EMC is
achieved.
SELV – Safety Extra Low Voltage – Protective measure
against dangerous body currents. Protective first voltage, circuit not floating.
Pin
Signal description
1, 9
Power supply,
24 VDC,
V+
2, 10
Power supply,
0 VDC,
V-
14
Digital input 1,
anode,
Digital input 1,
cathode, -
13
Digital input 2,
anode,
Digital input 2,
cathode, -
12
Digital output 1, collector,
Digital output 1, emitter,
Digital output 2, collector,
Digital output 2, emitter,
Terminal interface GND
Terminal interface RxD
15
Terminal interface TxD
EMC – Electromagnetic Compatibility
11
The signal circuits must comply w ith the requirements of the SELV circuits (see
EN60950).
SELV – Safety Extra Low Voltage – Protective measure
against dangerous body currents. Protective first voltage, circuit not floating
4.1.2.1.1. Power supply, Terminal and
Digital I/Os
Terminal Interface
On the 15-pin D-sub connector there is a terminal
Interface RS232 available for service and diagnostic purposes.
When the central unit is equipped with the Profibus-DP communication module 77COM-DP, the
terminal interface is also used to set the correct
Profibus slave address.
Warning! The terminal Interface is not galvanically Separated!
Baumer Ident GmbH
Read/Write Short R ange System Manual
Page 22 of 59
Sys tem Components
Digital I/Os
The two galvanically separated digital inputs have
a permissible input voltage of:
‘1’-signal 16 … 36 V
(max. 10 mA)
Profibus DP host interface (in central
unit 77LA04-DP only)
The host interface corresponds to the Profibus-DP
specifications.
‘0’-signal -2 … +2 V
The above is valid when using an input resistor of
about 3kΩ .
The two galvanically separated digital outputs
have an allowed switching voltage of:
10 … 36 V / 0,05 A (50 mA)
Pin Name
Signal description
Shield
Shield / Protective ground
M24
Earth for 24 V voltage out
RxD/TxD-P
Receive / Transmit signals –
positive
CNTR-P
Control signal for repeater
– positive
DGND
Data ground
(ground to VP)
VP
Voltage supply for the termination resistors (+5V)
Signal description
P24
voltage out 24V
RS 232 RxD
RxD/TxD-N
RS 232 TxD
Receive / Transmit
– negative
RS 232 GND
CNTR-N
RS 422 TA and RS 485 A
Control signal for repeater
– negative
RS 422 TB and TS 485 B
RS 422 RA
TS 422 RB
Cable parameters
VTERM for RS 422 and RS 485
(max 20 mA)
The bus cable is specified as cable type A within
the standard EN50170 and can be applied according to the following table:
4.1.2.1.2. Host interface
Serial host interface (in central unit
77LA04-SER only)
Pin
Figures in bold typeface are mandatory and must be
provided by the user.
You must not connect any unused w ires!
Page 23 of 59
Parameter
Cable A
Wave resistance
135 .. 165 Ω
Line Capacity
< 30 pF/m
Loop resistance
110 Ω /m
Core diameter of the signal cable
Ø 0,64 mm
Core cross section
> 0,34 mm²
Read/Write Short R ange System Manual
Baumer Ident GmbH
Sys tem Components
In adhering to the above parameters, the following
distances for a bus segment (branch) can be
achieved:
Baudrate (Kbit/sec)
Bus termination
If cable A according to EN50170 is used, a resistor combination should be used as bus termination to warrant a defined potential on the line.
Max. cable length
9.6
1,200
19.2
1,200
93.75
1,200
187.5
1,200
500
400
1500
200
12,000
100
Schematic of bus termination
•
Short branch cables (< 6,6 m) may be used
up to 1.500 kbit/sec.
•
above this speed no branch cables should
be used.
The cable shield must be connected to the protective ground to prevent EMC disturbances from
reaching into the central unit. The power supply to
the termination resistors on pin 6 is only intended
for that purpose and thus restricted to 10 mA.
It is important that the connectors at both ends of
the Profibus-DP cable are equipped with termination resistors. If this is not the case there may be
problems with the transmission.
Baumer Ident GmbH
Read/Write Short R ange System Manual
Page 24 of 59
Sys tem Components
4.1.2.2. System Diagnostics
LED Description
On the rear side of the controller there are 5
LED’s situated as shown in the diagram below:
LED Layout on backpanel
No.
Signal name
Function
A1 – Antenna 1 active
When lit, the antenna is active, executing a Read/Write
command with a tag or the controller is waiting for a tag at
this antenna (automatic Read/Write mode)
A2 – Antenna 2 active
ditto with antenna 2
R – RUN mode – flashing 1/2s
A flashing LED indicates that the controller is running. When
entering the Monitor – the LED stops flashing – the last LED
state remains active until the normal program operation continues.
Note: the Monitor program stops automatically on missing
terminal inputs after about 30 seconds and the normal operation continues.
Tx – Transmitting data
The controller sends data via the host port (Serial or Profibus) – the LED is switched ON just before the data is put
into the output FIFO buffer and switched OFF when the last
character of data is placed in the communication device.
Rx – Receiving data
When the controller fetches a complete command from the
communication device the LED switches ON. The LED
switches OFF when the message receive has completed.
With Profibus DP the LED switches ON at any change of the
controller inputs state (CTL-octet) and switches OFF when
the decoded command transfer to the command execution
module (command parser) has completed.
Hint:
A flickering Rx-LED on Profibus without any flickering of the
Tx-LED (for responses) indicates that the host does not
handle the command handshake bits correctly – in this case
refer to the section in this manual describing the CTL Bit
Handshake Protocol.
Page 25 of 59
Read/Write Short R ange System Manual
Baumer Ident GmbH
Sys tem Components
4.1.2.3. Technical Data
Environmental Conditions
The protection class IP65 is only v alid w hen
protectiv e caps are fitted to the unused connectors and cables w ith sealed connectors
are used.
measured according to EN 60068-2-30
Operating Data
Operating frequency
125 kHz
Antenna type
separate, series 77LSxx
No. of antennae
Data transfer speed
9600 baud (-SER)
Interfaces
Serial
RS 232/422/485
9-pin D-Sub male
Profibus-DP
9-pin D-Sub female
Device addressing
software command or
dip-switch (optional)
Temperature range
77LA04/2-ET
0 … +50 °C (Operating)
-10 … +60 °C (Storage)
-10 … +50 °C (Operating)
Protection class
IP 63 *
Climate, Upper
temperature
+55 °C, 93 % rel. humidity
Climate, Lower
temperature
+25 °C, 97 % rel. humidity
Duration of climate
test
2 cycles, 24 h each
* IP65 when protective caps are fitted to the unused
connectors and cables with sealed connectors are
used.
Vibration test IEC 68 Part 2-6
Wave type
Sine form
Frequency band
2 – 500 Hz
Amplitude
2 – 8 Hz 7,53 mm
peak./peak.
Electrical Data
Supply voltage
24 VDC ±10%
8 – 200 Hz, 2 g
Power consumption
max. 200 mA
200 – 500 Hz, 4 g
Supply connector
D-Sub 15-pin, combined
with IO and testterminal
Sweep speed
1 oct / min
Duration of test
2 h per axis
Immunity
EN50082-2, Class 3
Shock test (long-term) IEC 68 Part 2-29
Emission
EN55022, Class A
Shock form
half sine form
Amplitude
15 g
Duration of shock
6 ms
Number of shocks
4.000 *
Antenna connection
Mechanical data
Housing
Housing material
aluminium
Shock test IEC 68 Part 2-27
Outer dimensions
77LA04/2-SER,
-ET, -MD, -DP
145 × 130 × 54 mm
Weight
77LA04/2-SER,
-ET, -MD, -DP
Baumer Ident GmbH
700 g
Shock form
half sine form
Amplitude
30 g
Duration of shock
15 ms
Number of shocks
3*
* Measured in both directions of the 3 main axis of the
test object, oriented orthogonal to each other.
Read/Write Short R ange System Manual
Page 26 of 59
Sys tem Components
4.1.3 Central Unit 77LA04/4 –SER, -DP
!" !#
&' ( ' & !$ !%
78 mm
Di mensions 77LA04/4-SER, -DP
4.1.3.1. Connector pin assignment
The supply circuits must comply w ith the requirements of the SELV circuits (see
EN60950).
A screened cable must be used for the power
supply. Only in that way the required EMC is
achieved.
SELV – Safety Extra Low Voltage – Protective measure
against dangerous body currents. Protective first voltage, circuit not floating.
Pin
Signal description
1, 9
Power supply,
24 VDC,
V+
2, 10
Power supply,
0 VDC,
V-
14
Digital input 1,
anode,
Digital input 1,
cathode, -
13
Digital input 2,
anode,
Digital input 2,
cathode, -
12
Digital output 1, collector,
Digital output 1, emitter,
Digital output 2, collector,
Digital output 2, emitter,
Terminal interface GND
Terminal interface RxD
15
Terminal interface TxD
EMC – Electromagnetic Compatibility
11
The signal circuits must comply w ith the requirements of the SELV circuits (see
EN60950).
SELV – Safety Extra Low Voltage – Protective measure
against dangerous body currents. Protective first voltage, circuit not floating
4.1.3.1.1. Power supply, Terminal and
Digital I/Os
Terminal Interface
On the 15-pin D-sub connector there is a terminal
Interface RS232 available for service and diagnostic purposes.
When the central unit is equipped with the Profibus-DP communication module 77COM-DP, the
terminal interface is also used to set the correct
Profibus slave address.
Warning! The terminal Interface is not galvanically Separated!
Page 27 of 59
Read/Write Short R ange System Manual
Baumer Ident GmbH
Sys tem Components
Digital I/Os
The two galvanically separated digital inputs have
a permissible input voltage of:
‘1’-signal 16 … 36 V
(max. 10 mA)
Profibus DP host interface (in central
unit 77LA04-DP)
The host interface corresponds to the Profibus-DP
specifications.
‘0’-signal -2 … +2 V
The above is valid when using an input resistor of
about 3kΩ .
The two galvanically separated digital outputs
have an allowed switching voltage range of:
10 … 36 V / 0,05 A (50 mA)
Pin Name
Signal description
Shield
Shield / Protective ground
M24
Earth for 24 V voltage out
RxD/TxD-P
Receive / Transmit signals –
positive
CNTR-P
Control signal for repeater
– positive
DGND
Data ground
(ground to VP)
VP
Voltage supply for the termination resistors (+5V)
Signal description
P24
voltage out 24V
RS 232 RxD
RxD/TxD-N
RS 232 TxD
Receive / Transmit
– negative
RS 232 GND
CNTR-N
RS 422 TA and RS 485 A
Control signal for repeater
– negative
RS 422 TB and TS 485 B
RS 422 RA
TS 422 RB
VTERM for RS 422 and RS 485
(max 20 mA)
4.1.3.1.2. Host interface
Serial host interface (in central unit
77LA04-SER)
Pin
Figures in bold typeface are mandatory and must be
provided by the user.
You must not connect any unused w ires!
The cable has to be shielded!
Baumer Ident GmbH
Read/Write Short R ange System Manual
Page 28 of 59
Sys tem Components
Cable parameters
Bus termination
The bus cable is specified as cable type A within
the standard EN50170 and can be applied according to the following table:
If cable A according to EN50170 is used, a resistor combination should be used as bus termination to warrant a defined potential on the line.
Parameter
Cable A
Wave resistance
135 .. 165 Ω
Line Capacity
< 30 pF/m
Loop resistance
110 Ω /m
Core diameter of the signal cable
Ø 0,64 mm
Core cross section
> 0,34 mm²
Schematic of bus termination
In adhering to the above parameters, the following
distances for a bus segment (branch) can be
achieved:
Baudrate (Kbit/sec)
Max. cable length
9.6
1,200
19.2
1,200
93.75
1,200
187.5
1,200
500
400
1500
200
12,000
100
•
Short branch cables (< 6,6 m) may be used
up to 1.500 kbit/sec.
•
above this speed no branch cables should
be used.
Page 29 of 59
The cable shield must be connected to the protective ground to prevent EMC disturbances from
reaching into the central unit. The power supply to
the termination resistors on pin 6 is only intended
for that purpose and thus restricted to 10 mA.
It is important that the connectors at both ends of
the Profibus-DP cable are equipped with termination resistors. If this is not the case there may be
problems with the transmission.
Read/Write Short R ange System Manual
Baumer Ident GmbH
Sys tem Components
4.1.3.2. System Diagnostics
LED Description
On the rear side of the controller there are 7
LED’s situated as shown in the diagram below:
LED Layout on backpanel
No.
Signal name
Function
A1 – Antenna 1 active
When lit, the antenna is active, executing a Read/Write
command with a tag or the controller is waiting for a tag at
this antenna (automatic Read/Write mode)
A2 – Antenna 2 active
ditto with antenna 2
1 up A3 – Antenna 3 active
ditto with antenna 3
2 up A4 – Antenna 4 active
ditto with antenna 4
A flashing LED indicates that the controller is running. When
entering the Monitor – the LED stops flashing – the last LED
state remains active until the normal program operation continues.
R – RUN mode – flashing 1/2s
Note: the Monitor program stops automatically on missing
terminal inputs after about 30 seconds and the normal operation continues.
Tx – Transmitting data
The controller sends data via the host port (Serial or Profibus) – the LED is switched ON just before the data is put
into the output FIFO buffer and switched OFF when the last
character of data is placed in the communication device.
Rx – Receiving data
When the controller fetches a complete command from the
communication device the LED switches ON. The LED
switches OFF when the message receive has completed.
With Profibus DP the LED switches ON at any change of the
controller inputs state (CTL-octet) and switches OFF when
the decoded command transfer to the command execution
module (command parser) has completed.
Hint:
A flickering Rx-LED on Profibus without any flickering of the
Tx-LED (for responses) indicates that the host does not
handle the command handshake bits correctly – in this case
refer to the section in this manual describing the CTL Bit
Handshake Protocol.
Baumer Ident GmbH
Read/Write Short R ange System Manual
Page 30 of 59
Sys tem Components
4.1.3.3. Technical Data
Environmental Conditions
The protection class IP65 is only v alid w hen
protectiv e caps are fitted to the unused connectors and cables w ith sealed connectors are
used.
measured according to EN 60068-2-30
Operating Data
Operating frequency
125 kHz
Antenna type
separate, series 77LSxx
No. of antennae
Data transfer speed
9600 baud (-SER)
Interfaces
Serial
RS 232/422/485
9-pin D-Sub male
Profibus-DP
9-pin D-Sub female
Device addressing
dip-switch or software
command
Temperature range
0 … +50 °C (Operating)
-10 … +60 °C (Storage)
Protection class
IP 63 *
Climate, Upper
temperature
+55 °C, 93 % rel. humidity
Climate, Lower
temperature
+25 °C, 97 % rel. humidity
Duration of climate
test
2 cycles, 24 h each
* IP65 when protective caps are fitted to the unused
connectors and cables with sealed connectors are
used.
Vibration test IEC 68 Part 2-6
Wave type
Sine form
Frequency band
2 – 500 Hz
Amplitude
2 – 8 Hz 7,53 mm
peak./peak.
Electrical Data
8 – 200 Hz, 2 g
Supply voltage
24 VDC ±10%
Power consumption
max. 200 mA
Sweep speed
1 oct / min
Supply connector
D-Sub 15-pin, combined
with IO and testterminal
Duration of test
2 h per axis
Antenna connection
200 – 500 Hz, 4 g
Shock test (long-term) IEC 68 Part 2-29
Immunity
EN-50082-2, Class 3
Emission
EN-55022, Class A
Mechanical data
Shock form
half sine form
Amplitude
15 g
Duration of shock
6 ms
Number of shocks
4.000 *
Housing
Housing material
aluminium
Outer dimensions
77LA04/4-SER,
-DP
195 × 145 × 78 mm
Weight
77LA04/4-SER,
-DP
Page 31 of 59
1.1 kg
Shock test IEC 68 Part 2-27
Shock form
half sine form
Amplitude
30 g
Duration of shock
15 ms
Number of shocks
3*
* Measured in both directions of the 3 main axis of the
test object, oriented orthogonal to each other.
Read/Write Short R ange System Manual
Baumer Ident GmbH
Sys tem Components
4.1.4 Central Unit 77LA04/2-IBS
78 mm
Picture 1
Di mensions 77LA04/2-IBS
4.1.4.1. Connector pin assignment
The supply circuits must comply w ith the requirements of the SELV circuits (see
EN60950).
A screened cable must be used for the power
supply. Only in that way the required EMC is
achieved.
SELV – Safety Extra Low Voltage – Protective measure
against dangerous body currents. Protective first voltage, circuit not floating.
Pin
Signal description
1, 9
Power supply,
24 VDC,
V+
2, 10
Power supply,
0 VDC,
V-
14
Digital input 1,
anode,
Digital input 1,
cathode, -
13
Digital input 2,
anode,
Digital input 2,
cathode, -
12
Digital output 1, collector,
Digital output 1, emitter,
Digital output 2, collector,
Digital output 2, emitter,
Terminal interface GND
Terminal interface RxD
15
Terminal interface TxD
EMC – Electromagnetic Compatibility
11
The signal circuits must comply w ith the requirements of the SELV circuits (see
EN60950).
SELV – Safety Extra Low Voltage – Protective measure
against dangerous body currents. Protective first voltage, circuit not floating
4.1.4.1.1. Power supply, Terminal and
Digital I/Os
Terminal Interface
On the 15-pin D-sub connector there is a terminal
Interface RS232 available for service and diagnostic purposes.
Warning! The terminal Interface is not galvanically Separated!
Baumer Ident GmbH
Read/Write Short R ange System Manual
Page 32 of 59
Sys tem Components
Pin
Name
The two galvanically separated digital inputs have
a permissible input voltage of:
DO
Data Out
DI
Data In
‘1’-signal 16 … 36 V
COM
Data Gound
‘0’-signal -2 … +2 V
GND
The above is valid when using an input resistor of
about 3kΩ .
Power supply for opto converter
BC
Bus Control (+5V)
/DO
Data Out inverted
/DI^
Data In inverted
+5V
Power supply for opto converter
Digital I/Os
(max. 10 mA)
The two galvanically separated digital outputs
have an allowed switching voltage of:
10 … 36 V / 0,05 A (50 mA)
4.1.4.1.2. Host interface
Interbus S host interface (in central
unit 77LA04/2-IBS only)
Description
Recommended w iring
IBS-Out
IBS-In
Interbus S IN – Remote Bus (female)
Pin
Name
Description
DO
Data Out
DI
Data In
COM
Data Ground
GND
Power supply for opto converter
/DO
Data Out inverted
/DI
Data In inverted
+5V
Power supply for opto converter
* This bridge is made if another module follows down
the line and is only on the Out-Port.
Conv ersion to fibre optic transmission
Available converters
•
Remote-OUT to glass fibre
OPTOSUB-PLUS-G/OUT – 27 99 63 6
Interbus S OUT – Device Side (male)
•
Remote-OUT to polymer fiber
OPTOSUB-PLUS-K/OUT – 27 99 61 0
•
Remote-IN to glass fiber
OPTOSUB-PLUS-G/IN 27 99 62 3
•
Remote-IN to polymer fibre
OPTOSUB-PLUS-K/IN 27 99 58 4
Page 33 of 59
Read/Write Short R ange System Manual
Baumer Ident GmbH
Sys tem Components
Please contact the manufacturer for detailed information. PDF files are available on the internet
at:
http://www.phoenixcontact.com
Cables required for Interbus S w iring
Characteristic quantity @ 20 °C
Value
Test method
Number of conductors
3 × 2, twisted pair with common
shield
Conductor cross section
Min. 0.2 mm²
DC conductor resistance per 100m
Max. 9.6 Ω
Characteristic impedance
120 Ω ± 20 % @ f = 0.064 MHz IEC 1156-1 clause
3.3.6
100 Ω ± 15 Ω @ f > 1 MHz
IEC 189-1 clause 5.1
Dielectric strength
- Conductor / conductor
1000 V rms, 1 min
IEC 189-1 clause 5.2
- Conductor / shield
1000 V rms, 1 min
IEC 189-1 clause 5.2
Insulation resistance (after dielectric
strength test)
Min. 150 MΩ for a cable of 1
km
IEC 189-1 clause 5.3
Maximum transfer impedance @ 30 MHz
250 mΩ /m
IEC 96-1
Working capacitance @ 800 Hz
Max. 60 nF for a cable of 1 km
IEC189-1 clause 5.4
4.1.4.2. Status display of Interbus-S
Colour
Name
Description
gn
RC
Remote bus Check. Show s
existing connection to foregoing Remote bus. It is active, if the in coming remote
Bus is okay and the master
is switched on.
rd
RD
Disabled remote Bus. Shows
the status of the remote Interface.
ON means the remote interface is switched off.
Baumer Ident GmbH
yl
VCC
Positive supply voltage on an
IC plus 5V
gn
BA
Bus active. This LED shows
the data on the Interbus cycles ON while sending a message to the PLC/PC via the
HOST-Port
Read/Write Short R ange System Manual
Page 34 of 59
4.1.4.2.1. Monitor (77LA04-IBS only!)
This connection is intended to listen to the internal
data transfer between CPU and interface board.
You must not feed signals into any one of the
pins!
Pin
1)
Signal description
Monitor connector
Sys tem Components
Monitor cable circuit
PC / Terminal
TxD
RxD
3 RxD
DSUB 9
10kΩ
SGnd
5 SGnd
4.1.4.3. System Diagnostics
RS 232 RxD – Monitor output 1)
RS 232 TxD – Monitor output 1)
- do not use -
LED Description
RS 232 GND 1)
On the rear side of the controller there are 5
LED’s situated as shown in the diagram below:
- do not use -
- do not use -
- do not use -
- do not use LED Layout on backpanel
- do not use connector requires special cable!
No.
Signal name
Function
A1 – Antenna 1 active
When lit, the antenna is active, executing a Read/Write command with a tag or the controller is waiting for a tag at this antenna (automatic Read/Write mode)
A2 – Antenna 2 active
When lit, the antenna is active executing a Read/Write command with a tag or the controller is waiting for a tag at this antenna (automatic Read/Write mode)
R – RUN mode – flashing 1/2s
A flashing LED indicates that the controller is running. When
entering the Monitor – the LED stops flashing – the last LED
state remains active until the normal program operation continues.
Note: the Monitor program stops automatically on missing terminal inputs after about 30 seconds and the normal operation
continues.
Tx – Transmitting data
The controller sends data via the host port (Serial or Profibus) –
the LED is switched ON just before the data is put into the output FIFO buffer and switched OFF when the last character of
data is placed in the communication device.
Rx – Receiving data
When the controller fetches a complete command from the
communication device the LED is switched ON. The led is
switched OFF when the complete message is received.
Page 35 of 59
Read/Write Short R ange System Manual
Baumer Ident GmbH
Sys tem Components
4.1.4.4. Technical Data
Environmental Conditions
The protection class IP65 is only v alid w hen
protectiv e caps are fitted to the unused connectors and cables w ith sealed connectors are
used.
measured according to EN60068-2-30
Operating Data
Operating frequency
125 kHz
Antenna type
separate, series 77LSxx
No. of antennae
Data transfer speed
9600 baud (-SER)
Interfaces
Interbus-S
Device addressing
IBS-IN 9-pin D type male
IBS-OUT, 9-pin D type
female
dip-switch or software
command
Electrical Data
Supply voltage
24 VDC ±10%
Power consumption
max. 200 mA
Supply connector
D-Sub 15-pin, combined
with IO and testterminal
Antenna connection
Immunity
EN50082-2, Class 3
Emission
EN55022, Class A
Mechanical data
Housing
Housing material
-10 … +50 °C (Operating)
Protection class
IP 63 *
Climate, Upper
temperature
+55 °C, 93 % rel. humidity
Climate, Lower
temperature
+25 °C, 97 % rel. humidity
Duration of climate
test
2 cycles, 24 h each
* IP65 when protective caps are fitted to the unused
connectors and cables with sealed connectors are
used.
Vibration test IEC 68 Part 2-6
Wave type
Sine form
Frequency band
2 – 500 Hz
Amplitude
2 – 8 Hz 7,53 mm
peak./peak.
8 – 200 Hz, 2 g
200 – 500 Hz, 4 g
Sweep speed
1 oct / min
Duration of test
2 h per axis
Shock test (long-term) IEC 68 Part 2-29
Shock form
half sine form
Amplitude
15 g
Duration of shock
6 ms
Number of shocks
4.000 *
Shock test IEC 68 Part 2-27
195 × 145 × 78 mm
Weight
77LA02/-IBS
77LA04/2-ET
0 … +50 °C (Operating)
-10 … +60 °C (Storage)
aluminium
Outer dimensions
77LA02/-IBS
Temperature range
1.1 kg
Shock form
half sine form
Amplitude
30 g
Duration of shock
15 ms
Number of shocks
3*
* Measured in both directions of the 3 main axis of the
test object, oriented orthogonal to each other.
Baumer Ident GmbH
Read/Write Short R ange System Manual
Page 36 of 59
Sys tem Components
4.2 The Antennae
The system OISL has been developed with respect to the European regulation EN300330/Class
2. This class is intended for systems with customised antennae.
The different antennae have been designed with
respect to a wide variety of applications. In general antennae have to be used in an air environment.
The regulation requires an approval for the central
unit only whereas antennae of class 2 systems
are not subject to any approval or permission requirements.
For mounting in close proximity to metal please
read the appropriate chapter in this system manual. Specifications about reading distances and
recommended transponder types are also given in
this system manual or in the OIS-L transponder
data sheet LD.0306.EN.
These antennae are passive; in particular any
OIS-L antenna is only the inductive part of the
systems resonance circuit.
There are two different types:
•
AN.76.SR.xx.yy: These antennae are only
for compatibility with an older Baumer Ident
inductive identification system, 76LA01/xx
•
AN.77.SR.xx.yy: These antennae are standard use for the Baumer Ident OISL short
range
system
with
central
units
ZE.77.Sr.xx.yy.
Page 37 of 59
Special antennae for mounting directly onto metal
are available.
The antenna transmits energy and data signals to
and from the data tag. The coil and necessary
electronics are enclosed in a sturdy frame housing made of polystyrene. The frame is fully sealed
and is protected to an IP67 rating.
On a standard frame antenna the housing accommodates four mounting holes size M6 for
screws. A mounting kit (optional) containing
brackets and vibration dampeners is available to
facilitate the simple and correct mounting of the
antenna.
Read/Write Short R ange System Manual
Baumer Ident GmbH
Sys tem Components
4.2.1 Standard Frame Antennae
Name
Type
Order No.
Remarks
77LS01
AN.77.SR.01.01
DD100014
Standard Tuning
77LS01
AN.77.SR.01.02
DD100008
Tuned for 20 distance mm to steel
77LS02
AN.77.SR.02.01
DD100015
Standard Tuning
77LS03
AN.77.SR.03.01
DD100016
Standard Tuning
77LS04
AN.77.SR.04.01
DD100017
Standard Tuning
77LS09
AN.77.SR.09.01
DD100019
Standard Tuning
77LS09
AN.77.SR.09.02
DD100113
Tuned for 20 distance mm to steel
77LS09
AN.77.SR.09.03
DD100040
Tuned for 20 distance mm to steel, ET Version *
* Extended Temperature
Name
Type
H-c/c
W-c/c
Weight, kg
Mounting
77LS01
AN.77.SR.01.xx
100
100
85
85
0,5
2 x M4
77LS02
AN.77.SR.02.xx
150
150
81
81
0,8
4 x M6
77LS03
AN.77.SR.03.xx
225
225
156
156
1,2
4 x M6
77LS04
AN.77.SR.04.xx
275
275
206
206
1,5
4 x M6
77LS09
AN.77.SR.09.xx
400
400
331
331
1,8
4 x M6
Fra me antennae – mechanical data – All dimensions in mm
Baumer Ident GmbH
Read/Write Short R ange System Manual
Page 38 of 59
Sys tem Components
4.2.1.1. Common data for all frame
antennae
4.2.2.2. 77LS05
Technical Data
Type
AN.77.SR.05.01
Temperature
0 … +50 °C (Operating)
range
-10 … +60 °C (Storage)
Order code
DD100018
Housing
PVC
Housing
Polystrol (PS), dark grey
Tuning
Free air
Protection
class
IP65
Dimensions
Ø M30 × 1,5 × 80 (see
drawing below)
Tuning
Free air
Weight
60 g (320 g incl. cable)
Data sheet
LD.0331.EN
Cable
5 m included
The –ET version has an extended temperature
range of
Temperature -10 … +50 °C (Operating)
range
-10 … +80 °C (Storage)
4.2.2 Special Antennae
The different antennae have been designed with
respect to a wide variety of applications. In general antennae have to be used in an air environment.
In difference to 77LS05 the antenna 77LS06 has
an internal ferrite rod while the housing is identical. Thus, the antenna field has a special shape
which influences reading distance an maximum
passing speed of a transponder.
The antenna 77LS07 is designed for direct
mounting onto metal.
∅
4.2.2.1. Common data for all special antennae
Cable
fixed cable, 5 m length (other
lengths on request), min. bending
radius: 50 mm, static use
Temperature
range
0 … +50 °C (Operating)
-10 … +60 °C (Storage)
Protection
class
IP67
Page 39 of 59
Di mensional drawing of 77LS05 & 77LS06
4.2.2.3. 77LS06
Technical Data
Type
AN.77.SR.06.01
Order code
DD10139
Housing
PVC
Tuning
Free air
Dimensions/
mounting
Ø M30 × 1,5 × 80 (see
drawing before)
Weight
80 g (340 g incl. cable)
Data sheet
LD.0332.EN
Read/Write Short R ange System Manual
Baumer Ident GmbH
Sys tem Components
4.2.2.4. 77LS07
Technical Data
Type
AN.77.SR.07.01
Order code
DD100182
Housing
PVC
Tuning
Free air or direct on metal
Dimensions/
mounting
46 × 30 × 10 mm, 2 × M 3
Weight
230 g (incl. cable)
Data sheet
LD.0333.EN
Photo of 77LS13
4.2.2.6. 77LS14
Technical Data
Type
AN.77.SR.14.01
Order code
DD100098
Housing
Brass/PBTP
Tuning
Free air
Dimensions/
mounting
32 × 20 × 10 mm, 2 × M 3
Weight
230 g (incl. fixed cable)
Data sheet
LD.0334.EN
Di mensional drawing of 77LS07
4.2.2.5. 77LS13
Technical Data
Type
AN.77.SR.13.01
Order code
DD100128
Housing
Brass/PBTP
Tuning
Free air
Dimensions/
mounting
M 18 × 1 × 20 mm
Weight
260 g (incl. fixed cable)
Data sheet
LD.0335.EN
Baumer Ident GmbH
Di mensional drawing of 77LS14
Read/Write Short R ange System Manual
Page 40 of 59
Sys tem Components
4.3 Data Tags
4.3.1 Accessing Data Tags
By offering the opportunity to handle various tag
types it is necessary to provide information on
how to access read only and read write tags. This
overview gives a short overview about different
tag types and their special access parameters.
4.3.1.1. Basic Definitions
Series 76 tags
Read-only tags – EM series 4001, 4003, and
4103 compatible.
40 Bit Code ID, read only
Type 76LDxxx-yy
•
xxx = housing diameter or size specification
•
yy = material, housing, ... code
Example
76LD050-01:
•
•
•
The memories of the various read write tag types
(77LDxxx) are physically organized in pages. One
page contains 4 Bytes or 32 Bits of data. Only a
page can be accessed as a smallest unit. The
Read/Write data tag’s memory size allows to access 4 to 48 pages (16 to 192 Bytes, 128 to
1536Bit) of user pages depending on the specific
tag type. Byte access is supported only on the
base ‘page read, modify byte, page write back’.
Read-only tags (76LDxxx) are not organized in
pages. The memory contains a total net size of 5
Bytes (40 bits) of fixed sized programmed data.
The memory size including extra synchronization
bits and parity bits is 64 bits.
4.3.1.2. Read Only Tags
The 76LDxxx read only tag family offers a memory size of 64 bits. These bits are transmitted sequentially while the tag is in the active antenna
field. 24 bits are used as the message frame with
the SYNC-Header, parity bits and stop bit. 40 bits
are used as the UNIQUE ID. Only these 40 bits
are delivered to the user.
read only tag (series 76)
50mm diameter
Epoxy housing
Series 77 tags
Read/Write tags – 128 Bit, 1536 Bit user memory
space
Type 77LDxxx-syy
•
xxx = housing diameter or size specification
•
s = capacity specification 1 = 2 kBit Tag 2 =
256Bit Tag
•
yy = material, housing, ... code
Example
77LD100-101
•
•
•
•
•
ID Byte [MSB]
ID Byte
ID Byte
ID Byte
ID Byte [LSB]
40Bit unique. (Read
only)
[64 Bits with sync bits
and parity bits]
Tag data logical me mory map
2kBit Read write tag
100mm diameter
PVC housing
The TAG-ID has a length of 40 bits packed into 5
bytes. Each byte is transmitted as 2 hexadecimal
ASCII characters ‘0’...’9’, ‘A’...’F’. The higher order
nibble is sent first following the lower order nibble.
77LD030-201:
•
The logical memory map on the data tag looks
like the follow ing:
With read-only tags there is no need to set any
page numbers since the tag has a fixed code
length and is not divided into pages.
256 Bit Read/Write tag
30mm diameter
EPOXY housing
In the following chapters the ‘xxx’ and ‘yy’, etc.
abbreviations are replacements for the specific
tag type specifications (housing, type, material,
diameter, size, etc.).
Page 41 of 59
Read/Write Short R ange System Manual
Baumer Ident GmbH
Sys tem Components
Optional read only configuration
4.3.1.3. 256 Bit Read/Write Tag
Type
A specialty of this tag type is that it can mimic a
read only tag. Using this feature PREDEFINED or
multiple READ ONLY TAGS with the same ID may
be produced that are completely compatible to the
Series 76 tags. Series 77LDxxx-2yy data tags
may be used in a mixed environment with
76LDxxx tags.
When using the Read/Write data tag 77LDxxx-2yy
it is important to state which page you want to
read from. The 256 Bit type contains 8 pages,
each having 32 Bit. The first page contains the
unique serial number of the tag, the next three
pages are reserved and the remaining 4 pages
are available for user data.
This tag function must be set-up in factory or requires special controllers and controller software
at the customer site.
The data on the tag has the follow ing layout
Page #
Contents
Access
32 Bit unique. (Read only)
Public
No access available to this 3 pages
Not public
Serial number
Reserved
Reserved
Reserved
User data 1
Read and write
User data 2
-“-
Option: 64 Bit Read only memory Public
layout for RO operation
Public
User data 3
-“-
Public
User data 4
-“-
Public
Tag data logical me mory map
The Read Only Memory Option – Bit Map
D03
D13
D23
D33
D43
D53
D63
D73
D83
D93
CP3
Line Parity 1
Line Parity 2
Line Parity 3
Line Parity 4
Line Parity 5
Line Parity 6
Line Parity 7
Line Parity 8
Line Parity 9
Line Parity 10
Column Parity
D02
D12
D22
D32
D42
D52
D62
D72
D82
D92
CP2
D01
D11
D21
D31
D41
D51
D61
D71
D81
D91
CP1
D00
D10
D20
D30
D40
D50
D60
D70
D80
D90
CP0
LP0
LP1
LP2
LP3
LP4
LP5
LP6
LP7
LP8
LP9
Digit 1
Digit 2
Digit 3
Digit 4
Digit 5
Digit 6
Digit 7
Digit 8
Digit 9
Digit 10
4 Bit
Sync-Headerbits
Page 4
Page 4
Page 4
Page 4
Page 4 / Page5
Page5
Page5
Page5
Page5
Page5
Page5
Page4
8 bit version
custumer ID
32 bit unique
identifier
allowing
~4 billion of
combinations
Line
Parity
Stop bit
Page5
The parity is calculated as even parity.
4.3.1.4. 2kBit Read/Write Tag
Type
The 2kBit data tag is operating functionally
similar to the 256 Bit tag introduced above. The
Baumer Ident GmbH
main differences are the larger amount of pages
that can be read by an atomic command (up to
16 pages max.) and different page start addresse s of user data area and its greater size.
Read/Write Short R ange System Manual
Page 42 of 59
Sys tem Components
The memory of the 2kBit data tag 77LDxxx-1yy
contains 64 pages, each having 32 Bit. The first
page contains the unique serial number of the
tag, the next seven pages are reserved and not
accessable. Pages 8 to 15 are reserved and are
accessable with Long Range Reader Devices
only The remaining 48 pages are available for
user data without any restriction.
The data on the tag has the follow ing layout
Page #
Contents
Serial number
Reserved
…
-“-
-“-
-“-
…
-“-
15
Reserved
16
User data 1 page
Read and write
…
-“-
-“-
64
User data 48 page
-“-
32 Bit unique. (Read only)
No access available to 7 pages
No access available to 8 pages for short range reader
Standard: no access with long range reader.
Access with long range reader requires special firmware.
Tag data logical me mory map
Page 43 of 59
Read/Write Short R ange System Manual
Baumer Ident GmbH
Sys tem Components
Baumer Ident GmbH
Read/Write Short R ange System Manual
Page 44 of 59
Hints on Installation and System Design
5 Hints on Installation and System
Design
5.1 Basic considerations
5.2 The antenna lobe
We would all like to ensure that all of the efforts
that have gone into planning and designing a new
system will enable it to be installed problem free
in an efficient and reliable manner. Enabling the
new system to meet all of the planned project criteria. When selecting the correct OIS-L components for an application, there are a few more
items to be considered:
The antenna field runs concentric with the coil
windings. Hence the field is stronger towards the
centre of the antenna, where the fields from all
four sides coincide. A certain field also occurs on
the outside of the antenna frame. Thisis the reason why the field close to the antenna surface is
larger than the actual coil winding itself. The following graph shows a typical antenna field form
and spread when both the antenna and data tag
are free from metal influences.
The env ironment
•
Is it free from metal around antenna and
data tag
•
Electrical noise close to the antenna -or data
tag
•
Humidity
•
Temperature
•
Aggressive media
•
Vibrations, shock
Required distance betw een antenna and data
tag
Writing data to the tag
•
Number of write cycles per time unit
•
Static
•
Dynamic
5.3 Useful antenna field
It is important to distinguish between static and
dynamic applications. The tag needs to be within
the active field for approximately 80-150 ms (depending on tag type for one page or read only
Code-ID) to guarantee a correct code reading or
data programming. The higher up on the lobar
antenna field form the tag passe s the antenna,
the shorter the useful field gets resulting in a reduction of the max. passing speed possible.
The reading range achievable depends on different factors, e.g. antenna type, data tag position,
and interferences in the environment. Typical values achievable are listed in the following tables
under conditions as stated in the respective table.
Passing speed required
Amount of data to be transmitted
Max. out of centre deviation (± mm)
Page 45 of 59
Read/Write Short R ange System Manual
Baumer Ident GmbH
Hints on Installation and System Design
Antenna field – Communication – range definition for static and dynamic application
The various reference numbers in the previous
graph have the following meanings:
Hmax
This is the maximum distance possible between the antenna and the
data tag where the field strength is
high enough to power up the data
tag. Since the diameter at this point
is close to zero, it can only be used
for static applications.
Ha
This is the main field and should be
used for dynamic applications. The
max diameter Ø D indicates the upper limit for dynamic applications.
For maximum allowable passing
speeds please refer to the appropriate manual section.
Hm
Defines the distance between a
metal surface and the antenna. For
optimal system performance it is
essential to keep a minimum distance to any metal surface.
The W stands for the maximum allowable ± offset from the centreline,
having just a minor influence on the
passing speed in dynamic applications.
ØD
The maximum diameter Ø D indicates the upper limit for dynamic
applications.
Baumer Ident GmbH
Note
The tags of the same size e.g. 77LD03-xx have
the same communication distance; hence not all
variants are displayed in the table.
Set-up to establish Read/Write distances
Read/Write Short R ange System Manual
Page 46 of 59
Hints on Installation and System Design
5.3.1 Width ∅D and W and reading range at distance Ha
∅ D, W [mm]
Data tag
Antenna
76LD020
76LD030
76LD050
76LD060
77LS01
100, 50
100, 90
100, 95
100, 100
77LS02
150, 100
150, 130
150, 125
150, 140
77LS03
225, 170
225, 170
225, 190
77LS04
275, 160
275, 190
275, 220
77LS05
50, 30
50, 30
50, 50
77LS09
400, 335
400, 375
76LD500
Reader
100, 95
77LA04/x
150, 145
150, 125
77LA04/x
225, 200
225, 220
225, 190
77LA04/x
275, 230
275, 265
275, 220
77LA04/x
1)
1)
50, 50
77LA04/x
400, 375
77LA04/x
50, 60
76LD100
100, 140
50, 80
400, 380
1)
400, 395
Di mensions of communication field, mm at distance Ha for read-only tags of series 76
∅ D, W [mm]
Data tag
Antenna
77LD020
77LD030
77LD050
77LS01
100, 50
100, 90
100, 90
77LS02
150, 100
150, 120
150, 125
77LS03
225, 170
225, 170
77LS04
275, 160
77LS05
77LS09
77LD100
77LD500
Reader
100, 90
77LA04/x
150, 145
150, 125
77LA04/x
225, 190
225, 220
225, 190
77LA04/x
275, 180
275, 220
275, 265
275, 220
77LA04/x
50, 30
50, 30
50, 50
50, 50
77LA04/x
400, 330
400, 355
400, 355
77LA04/x
100, 140
50, 80
1)
1)
400, 395
Di mensions of communication field, mm at distance Ha for Read/Write tags of series 77
1)
if the tag is larger than the antenna – W is determined by the tag size!
5.3.2 Operational Read/Write range Ha
Ha[mm]
Data tag
Antenna
76LD020
76LD030
76LD050
76LD060
76LD100
76LD500
Reader
77LS01
50
70
100
110
130
100
77LA04/x
77LS02
60
80
120
130
170
130
77LA04/x
77LS03
70
110
150
170
210
160
77LA04/x
77LS04
60
120
170
180
220
180
77LA04/x
77LS05
30
40
60
60
70
60
77LA04/x
77LS09
120
180
210
290
190
77LA04/x
Typical communication distance for read-only tags of series 76
* Combination of data tag and antenna not recommended!
Page 47 of 59
Read/Write Short R ange System Manual
Baumer Ident GmbH
Hints on Installation and System Design
Ha[mm]
Data tag
Antenna
77LD020
77LD030
77LD050
77LD100
77LD500
Reader
77LS01
35
60
90
130
100
77LA04/x
77LS02
50
70
100
150
150
77LA04/x
77LS03
45
90
150
200
170
77LA04/x
77LS04
35
100
170
250
190
77LA04/x
77LS05
30
50
70
100
70
77LA04/x
77LS09
100
170
290
200
77LA04/x
Typical communication distance for Read/Write tags of series 77
5.3.3 Peak Read/Write range Hmax
Hmax[mm]
Data tag
Antenna
76LD020
76LD030
76LD050
76LD060
76LD100
76LD500
Reader
77LS01
70
100
140
150
190
150
77LA04/x
77LS02
90
130
170
190
250
180
77LA04/x
77LS03
100
160
220
240
300
230
77LA04/x
77LS04
90
170
240
260
320
250
77LA04/x
77LS05
40
60
80
90
100
80
77LA04/x
77LS09
170
260
300
410
270
77LA04/x
Maximu m co mmunication distance for read-only tags of series 76
Hmax[mm]
Data tag
Antenna
77LD020
77LD030
77LD050
77LD100
77LD500
Reader
77LS01
50
90
130
190
160
77LA04/x
77LS02
75
100
150
220
220
77LA04/x
77LS03
75
130
220
260
250
77LA04/x
77LS04
50
150
240
310
280
77LA04/x
77LS05
40
60
80
120
80
77LA04/x
77LS09
160
260
380
310
77LA04/x
Maximu m co mmunication distance for Read/Write tags of series 77
* Combination of data tag and antenna not recommended!
Baumer Ident GmbH
Read/Write Short R ange System Manual
Page 48 of 59
Hints on Installation and System Design
5.3.4 Static applications
From the above statement it is evident that the
upper part of the field may only be used in static
applications. Local environmental influences may
have an adverse effect on the achievable
Read/Write distances. It is therefore vitally important to measure the distances on site with the
equipment to be used, to avoid problems in the
field.
A particular problem to look out for when considering an installation, can be caused by the close
proximity to strong fields generated from ACservos.
Note! Watch out for possible disturbances in
the area surrounding the antenna.
5.3.5 Dynamic applications
5.4 Calculating the
Passing Speed
The achievable passing speed depends on the
size of the antenna, data tag and the number of
Bytes to be transferred. The contact time for
reading the fixed-code serial number i.e. the time
the data tag is required to be within the useful
area of the antenna field is about 140 ms. This
gives a simple rule-of-thumb to calculate the
maximum passing speed for a particular antenna/data tag combination.
Desired passing speed in mm/ ms × 100 =
Length of useful antenna field required in
mm.
Example
passing speed = 30m/min (100 ft/min)
For dynamic applications For dynamic applications only the lower section of the lobar field
should be used. This is demonstrated in the
graph given on the previous page.
A second important factor to consider in dynamic
applications is the off-centre deviation. The corridor W in the graph indicates the maximum deviation +/- from the antenna centre line. The field
varies slightly with the data tag size. For practical
purposes a value between 0,4 and 0,5 × Ø D can
be used as a start value. If the data tag extends
beyond these values, the contact length with the
active field gets shorter, reducing the achievable
passing speed.
Do not forget to consider the deviation from
the antenna’s centre line!
This equals 0.5 mm/ ms × 100 = 50 mm
useful antenna field length.
100 ft/min = 0.02"/msec. × 100 = 2" useful
antenna field length
The tables before show typical values for different
antennae and different tags used. The values
have been established from measurements from
several tags and the average value has been
taken.
Temperature variations and production tolerances
may produce values that differ from the above by
±20%. Hence we recommend to perform tests
with the equipment on the site in question, to establish the Read/Write distances and passing
speeds achievable in the actual application.
Note! Local conditions may affect the
Read/Write distances achievable. Production
tolerances and temperature changes may also
cause a deviation from the values in the table!
Page 49 of 59
Read/Write Short R ange System Manual
Baumer Ident GmbH
Hints on Installation and System Design
5.4.1 Communication:
Reader – Antenna – Data
Tag
5.4.1.1. Read Only Tag – 76LDxxx
The read only tag has a fixed timeing therefore
three constant describe the typical tag-reporting
rates to be expected
Read:
80 ms :
ously.
2kBit Tag:
Type family 77LDxxx-1yy
Pages:
0, 16,..,63
Number of Pages:
1..15 or 0 for 16 pages
Note: 16 possible when using 0 as number of
pages in the standard host commands using Serial, Profibus-DP or Interbus-S protocols.
Read:
Number of Pages < 16
T read [ms] = 81+ 44 * ‘Number of Pages’
reading of tag in antenna field, continu-
117 ms : Tag enters antenna field newly, 1 time
then 80ms continuously
150 ms : worst case under influence of disturbance
Number of Pages = 16
T read [ms] = 81+ 44 * 16 = 785ms
Example:
11 pages to read
T read [ms] = 81+ 44 * 11 = 565ms
Write:
5.4.1.2. General formulas for Read
/ Write Tag Types
Number of Pages < 16
T write [ms] = 86 + 48 * ‘Number of Pages’
Number of Pages = 16
256Bit Tag:
Type fam ily 77LDxxx-2yy
Pages:
0, 4...7,
Number of Pages:
1..4
T write [ms] = 86 + 48 * 16
Example:
9 pages to write
T write [ms] = 86 + 48 * 9 = 518ms
Read:
T read [ms] = 60+ 36 * ‘Number of Pages’
Example:
2 pages to read
T read [ms] = 60+ 36 * 2 = 132ms
Write:
T write [ms] = 65 + 39 * ‘Number of Pages’
Example:
3 pages to write
T write [ms] = 65 + 39 * 3 = 182ms
Baumer Ident GmbH
Read/Write Short R ange System Manual
Page 50 of 59
Hints on Installation and System Design
5.4.2 Communication:
Reader – Host (PC or PLC)
The communication time required between the
central unit and the host depends mainly on three
factors:
(T whost)
(T woisl )
(10 + 4 * 2 * ) * 1,1 +
9 * 1,1
Example: write 15 pages
T write_comm [ms] = [(10 + 8 * 15) + 9] * 1,1
= 152,9 ms
• Type of communication
• Cycle time of the host
• Software used
The communication can be split into three main
steps as follows:
1) A command is prepared and executed in the
host and transmitted to the central unit.
2) The central unit performs the instructions i.e.
writes data to and/or reads data from the tag. The
data exchange between central unit and tag starts
as soon as the tag has entered the active antenna
field. The data received from the tag is evaluated
and verified and subsequently stored in the memory of the central unit
3) The host polls the central unit and the code
stored is transmitted to the host.
5.4.2.1. Serial communication time
The communication between the host, the central
unit and tag is asynchronous at a standard transfer rate of 9.600 Bps. This is the base for calculating the amount of data that may be transferred
during the time the tag is within the active field of
the antenna. For the serial and Interbus-S controller versions the transfertime via the serial link
must be added to any read / write execution
times. The Profibus-DP versions provide a faster
internal transfer rate and must be handled differently.
Read command:
It isn’t possible to give a general formula for the
correlation of speed vs amount of data to handle
due to the fact that too many different parameters
are influencing this calculation. It is only possible
to show the graphical representation of the correlation for typical combinations of tags, antennae to
help the user to estimate the key limits of this
scheme. The following information only applies to
data tags within the field with the boundary Wshort
and Wlong of the main field Ha
5.4.3.1. Component selection
Selecting the best antenna, tag combination for a
given application is executed as an iterative process. Various different parameters must be varied
to get a proper component match to the specific
application and environmental conditions.
The following steps must be taken to determine
the required parameters.
1. Select the antenna for the required read/write
distance antenna – tag from tables:
‚Operational Read/Write range Ha’
T read_comm [ms] = T rhost + T roisl =
(T rhost)
(T roisl )
5.4.3 Correlation of
Passing Speed vs. Amount
of Read/Write Data
10 * 1,1 +
(9 + 4 * 2 * ) * 1,1
Example: read 16 pages
T read_comm [ms] = [10 + (9 + 8 * 16)] * 1,1
= 161,7[ms]
2. Check the antenna selected for matching
against the table:
‚Width W of reading range at distance
Ha’
3. As result the Tag-Type and the Antenna are
selected.
Write command:
T write_comm [ms] = T whost + Twoisl =
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Read/Write Short R ange System Manual
Baumer Ident GmbH
Hints on Installation and System Design
4. The given antenna size ∅ D and the Tag diameter give the available physical reading
length as result.
The parameter ∅ D can be determined from table:
Controller 77LA04/2-SER with one antenna.
Required read range ~50mm (distance tag / antenna), minimum distance 30mm, max. distance
70mm.
Data tag type read only – 76LDxxx
‚Width W of reading range at distance
Ha’
Now all parameters referring the available length
of the read/write area S proc_len are determined.
Step 1 (Antenna/Tag) Select Antenna/Tag pairs
with Ha > 70mm
5. With the next step the available time for
communication with the data tags is calculated
from the application specifications.
Antennae
77LS02..77LS04 are matching
Data tag
76LD030 or 76LD050 are matching
The user must determine the number of pages
to transfer between antenna and tag.
With the parameters tag type and number of
pages to transfer over all, the user can calculate
the amount of time Tproc_len required to proceed.
6 The best case passing speed v opt_proceed is
calculated (using the general formula v = s/t):
v opt_proceed = S proc_len / Tproc_len
Example:
The following conditions are given by the application specifications:
Start w ith 77LS02 and 76LD030
Step 2 (Antenna / Tag verification)
From the table W = 120mm is taken.
Step 3 W should be OK this selection seems acceptable
Step 4 Check read width W
The antenna 77LS02 has an effective coil diameter of 120mm (150mm – 2*15mm), using a
data tag with an effective coil diameter of 30mm.
The estimated resulting field size is:
W = S proc_len = 150mm – 30mm = 120mm.
See the following drawing for details.
Dta g
Dta g
Dta g
Estim ated coil d iameter
Estimate antenna reading area using given antenna diameter and tag diameter.
Step 5 Estimate the time required for Read / Write
operations:
Baumer Ident GmbH
Read/Write Short R ange System Manual
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Hints on Installation and System Design
Read only tag Tag 76LD030 read time is 117ms
when the tag enters the field. The worst case is
typically 150ms. To be on the save side 150ms is
taken for the following calculation.
Tread = Tproc_len = 150ms.
Step 6: Determine the maximum tag passing
speed.
v opt_proceed = S proc_len / Tproc_len = W / Tread =
= 120mm/150ms = 120/150 m/s
= 0,8m/s = 48m/min
If this doesn’t meet the application requirement
(speed is too low) then the calculation with the
next larger antenna / data tag pair, i.e. 77LS03
antenna and 76LD050 data tag must be repeated
with step 1.
5.5 Installation
Guidelines
In an ideal situation, the system is free from environmental influences, proximity to metal and
electrical noise. An industrial environment is normally far from being the ideal situation.
For that reason the installation can only be
done by a technician, w ho has enough know
ledge about the OIS-L system. Baumer Ident
offers support and training in Germany.
The nearness of the antenna and/or data tag to a
metal surface has more than one adverse effect
on system performance.
The distance between two adjacent antennae and
/ or two tags plays an important role for optimal
system function. Guidelines for min. distances are
given in a following section.
For optimum performance please ensure that the
antenna is mounted as follows:
•
No metal closer than 100 mm to the antenna
in any direction (Hx and Hm)
•
Data tag should be arranged as parallel as
possible to the antenna surface
The writing/reading range achievable depends on
various factors, e.g. data tag type and position,
environmental interference. For accurate values,
tests should be carried out on-site. Typical values
for certain antenna/tag combinations are listed in
the subsequent section
All values are valid for a metal free environment at
an ambient temperature of 20 °C. Due to component and production tolerances as well as temperature influences, a variance of ±20 % is allowed.
A set of mounting brackets is available and can be
ordered separately.
When the tags are flush-mounted in iron or aluminium, the reading distance is substantially reduced due to the loss of energy through eddy currents and other losses.
By applying certain application techniques, it is
possible to obtain reading distances of 50% as
compared to the readings in air.
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Hints on Installation and System Design
increase the frequency even more; in the worst
case it will cause the system to fail.
5.5.1 Metal-free
environment
The closeness of the antenna and/or data tag to a
metal surface has more than one adverse effect
on the system performance.
A second negative influence is the loss of energy.
The metal in the form of Eddy currents will absorb
a certain amount of the energy transmitted from
the antenna. Hence, it is important to strictly adhere to the mounting recommendations provided
in the user manual.
If mounting is required on or close to metal parts,
special antennae and data tags are needed.
Baumer Ident has extensive experience in this
field and is therefore able to offer a solution.
Installation Diagram
A major effect on the system is caused when a
metal surface close to the coil detunes the frequency from its nominal value of 125 kHz. An iron
surface will normally increase the frequency by
approximately 6 kHz. An aluminium surface will
The following graph shows the typical drop in
system performance for any combination antenna
/ data tag when the antenna is mounted in close
proximity to metal (Fig. 5-5). The reduction in
performance is given as the distance to metal in
relation to the size of the antenna loop, expressed
as percentage.
Influence on system performance by nearness to metal – distance antenna - Metal in % of antenna loop Ø
Example
The antenna 77LS09 has an antenna loop (Ø D)
of 340 mm. If the antenna is mounted at a distance of 170 mm to a metal surface (=50% of
loop) the system performance will be reduced to
45% of the performance it has in a metal free environment.
Baumer Ident GmbH
In order to reduce this great performance loss,
antennae especially tuned to metall are available.
This special antennae guarantee a performance
of better than 90% of a standard antenna without
influence of metal.
Read/Write Short R ange System Manual
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Hints on Installation and System Design
In the previous sections the various negative influences on system performance have been discussed. To recap, the main points are as follows:
•
Mounting of the antenna and tag close to
metal is not recommended. If certain critical
values are not adhered to, the system performance will not only drop considerably - it
can fail completely.
•
Flush mounting of the antenna and/or tag in
a metal environment requires special attention. There must be a metal free area in all
directions (distance values for antennae, pls.
refer to Fig. 5-5). For the tags it is normally
sufficient to have a distance of 50 mm to
metal in any direction.
•
No metal brackets (or any other metal object) should be within the active field, since
this will distort the field lines and reduce
system performance.
Performance with tag and antenna close to metal
5.5.2 Mounting examples
The diagrams below show a typical mounting
used in industrial applications. Indicated is the
recommended minimum distances between two
antennae, as well as between two adjacent tags.
Should it become necessary to mount the antennae closer to each other than Shown in Fig. 5-6
an electronic interlock has to be arranged to prevent one antenna from "damping " the other.
Performance with metal on three sides of antenna
System performance with tag close to metal
Antenna mounted close to metal
Important Note!
The more metal free area there is around the antenna and tag, the betterthe system performance.
Should the antenna be mounted at a distance of
less than 20% of the loop diameter Ø D, there is a
risk that the system will fail.
Page 55 of 59
Generally it is less detrimental to system performance if the tag is closer to the metal than recommended.
Read/Write Short R ange System Manual
Baumer Ident GmbH
Hints on Installation and System Design
5.5.3 Distance between
antennae or tags
electronic interlock has to be arranged to prevent
one antenna from “killing” the other.
Should it become necessary to mount the antennae closer to each other than shown in Fig. 5-6 an
OIS-L
77LS04
1234-56
BI I 98 34/0001
3xB
OIS-L
77LS04
1234-56
BI I 98 34/0001
Minimu m distance between two antennae driven by different central units.
> 2xB
Antenna
77LS04
OIS-L
77LS04
BI1234-56
I 98 34/0001
Transport box with tag 77LD07
Minimu m distance between two data tags – Communication with the tags through metal transport reels
Baumer Ident GmbH
Read/Write Short R ange System Manual
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Hints on Installation and System Design
5.6 EMC Guidelines
EMC can be separated into three general types:
EMC stands for E lectroM agnetic Compatibility.
The EMC guidelines are constantly being updated
and more stringent demands are applied to electronic components and equipment.
Self-immunity
The immunity against internal (own) electrical
disturbances
A considerable increase in the use of electronic
equipment and appliances has taken place in recent years. The required performance of the
equipment increases and the physical size of the
equipment decreases. The component power
consumption is reduced and the communication
and processing speeds increase.
General immunity
The immunity against foreign electromagnetic
disturbances
The more units that are in operation, the higher
the risk that they will influence each other. Hence,
the reason for the stricter rules that constantly
challenge the electronic companies.
Note! It is the responsibility of the general
contractor of the total system to adhere to the
EMC guidelines for the total installation.
Measurements taken at the planning and installation stage will prevent expensive system
changes at a later stage
Specific regional or country regulations and
legal requirements must not be neglected
5.6.1 General
With EMC we understand the ability of electric or
electronic equipment to function without any
problems in an electromagnetic environment. At
the same time, the equipment is not allowed to
influence or interfere with other equipment in the
vicinity, beyond certain limits.
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Emission
The degree of radiation and interference onto
other equipment. EMC tests are performed according to all three types. All Baumer Ident
equipment undergoes these rigorous tests.
Since the Baumer Ident equipment is only part of
a total system, it is vital for the system performance that all system components adhere to these
EMC guidelines.
5.6.2 Shielding concept
In the OIS-L system the data exchange between
the central unit and the host is performed at a rate
of at least 9600 Baud via an RS 422 interface.
When Profibus DP is used, the rate is considerably higher. The maximum cable length at 9600
Baud is 1000 meters. This necessitates good
shielding of the data cables.
Read/Write Short R ange System Manual
Baumer Ident GmbH
Hints on Installation and System Design
shielding
Baumer Ident GmbH
Read/Write Short R ange System Manual
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FAQ’s
6 FAQ’s
mains voltage or DC Voltage above the limit of
36VDC into it. So don’t even try it!
6.1 Digital Input /
Trigger
To force a continuous operation with a trigger
function, a 15pole adapter must be used. This
sets the dedicated trigger input to an active state.
For Input 1 active
Connect Pin1-Pin14 or Pin9-Pin14 and Pin6-Pin2
with a little isolated wire
For Input 2 active
Connect Pin1-Pin13 or Pin9-Pin13 and Pin5-Pin2
with a little isolated wire
What happens if there are spikes or
drops on the power supply?
Normally nothing. The galvanically isolated DCDC-Converters inside can stand an input voltage
between 18 and 36 VDC. Spikes from usual electrostatic discharges should also do no harm onto
this connector.
The digital outputs are also protected against
misuse.
But be careful with overvoltages into the host interfaces.
6.2 Miscellaneous
What happens if there is a polarisation
error to the power supply?
Nothing. The unit is protected against such errors.
The only chance to kill the central unit is to feed
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