Escort Memory Systems warrants that all products of its own manufacture conform to Es
cort Memory Systems specifications and arefreefromdefects in material and workmanship
when used under normal operating conditions and within the service conditions for which
they were furnished. The obligation of Escort Memory Systems hereunder shall expire one
(1) yearafter delivery, unlessotherwisespecified,andis limited to repairing, or at its option,
replacing without charge, any such product which in Escort Memory System's sole opinion
proves to be defective within the scope of this Warranty. In the event Escort Memory Sys
tems is not able to repair or replace defective products or components within a reasonable
time after receipt thereof, Buyers shall be credited for their value at the original purchase
price. Escort Memory Systems must be notified in writing of the defect or nonconformity
within the warranty period and the affected product returned to Escort Memory Systems
factory or to an authorized service center within thirty (30) days after discovery of such de
fect or nonconformity. Shipment shall not be made without prior authorization by Escort
Memory Systems.
This is Escort Memory Systems' sole warranty with respect to the products delivered here
under. No statement, representation, agreement orunderstandingoral or written, made by
an agent, distributor, representative, or employee of Escort Memory Systems which is not
contained in this warranty, will be binding upon Escort Memory Systems, unless made in
writing andexecutedby an authorized Escort Memory Systems employee. Escort Memory
Systems makes no other warranty of any kindwhatsoever,expressedorimplied, and all im
plied warranties of merchantability and fitness for a particular use which exceed the
aforestated obligation are hereby disclaimed by Escort Memory Systems and excluded
from this agreement. Under no circumstances shall Escort Memory Systems be liable to
Buyer, in contract or in tort, for any special, indirect, incidental, or consequential damages,
expenses, losses or delay however caused.
Equipment or parts which have been subject to abuse, misuse, accident, alteration, neglect, unauthorized repair or installation are not covered by warranty. Escort Memory Systems shall make the final determination as to the existence andcauseofanyalleged defect.
No liability is assumed for expendable items such as lamps andfuses. No warranty is made
with respecttocustom equipment or products produced to Buyer's specifications except as
specifically stated in writing by Escort Memory Systems in the contract for such custom
equipment.
This warranty is the only warranty made by Escort Memory Systems with respect to the
goods delivered hereunder, and may be modified or amended only by a written instrument
signed by a duly authorizedofficerofEscort Memory Systems andacceptedbythe Buyer.
Extended warranties of up to four years are available for purchase for most EMS products.
Contact EMS or your distributor for more information.
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This document contains proprietary informationwhich is protected by copyright. All rights are re
served. The information in this manual has been carefully checked and is believed to be accu
rate; however, no responsibility is assumed for possible inaccuracies or omissions.
Specifications are subject to change without notice.
EMS®, Escort Memory Systems® and the EMS® logo are registered trademarks of Escort
Memory Systems, aDatalogic Group Company. Other brand and product names mentionedare
trademarks or registered trademarks of their respective holders.
Escort Memory Systems
A Datalogic Group Company
170 Technology Circle
Scotts Valley, CA 95066
Telephone (831) 438-7000
FAX (831) 438-5768
www.ems-rfid.com
email: info@ems-rfid.com
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference in
a residential installation. This equipment generates, uses and can radiate ra
dio frequency energy and, if not installed and used in accordance with the in
structions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try and correct the interference by one or
more of the following measures:
Reorient or relocate the receiving antenna.
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Increase the separation between the equipment and the re
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ceiver.
Connect the equipment into an outlet on a circuit different
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from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for
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help.
CAUTION
Changes or modifications not expressly approved by Escort Memory Systems could void the user’s authority to operate the equipment.
Escort Memory Systems' passive read/write system is a complete family of
field-proven read/write Radio-Frequency Identification products. The sys
tem consists of RFID tags, reader/writers, antennas, controllers, bus inter
faces, and ancillary equipment. Tags can be attached to a product or its
carrier and act as an electronic identifier, job sheet, portable database, or
manifest. Tags are read and updated via an Escort Memory Systems
Reader/Writer, through any nonconductive material, while moving or stand
ing still.
Escort Memory Systems' LRP-Series long-range passive RFID system is the
latest in our line of high performance, industrial RFID equipment. The passive design of the LRP read/write system uses the RF field from the antenna
to power the tag, eliminating the need for tag batteries. The LRP passive
read/write system is designed to provide cost effective RFID data collection
and control solutions to automation and material handling applications.
The LRP system uses the internationally recognized ISM frequency of 13.56
MHZ to both power the tag, and to establish a radio link to transfer the information.
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The LRP830 is specifically designed to work with LRP-Series passive tags,
which provide 48 bytes of reprogrammable memory.
The LRP830 supports the industrial bus protocol DeviceNet. The LRP830
is encased in a NEMA4 enclosure and features two serial ports, 4 optoisolated inputs, 4 opto-isolated outputs. The LRP830-04 is equipped with
an antenna designed for conveyor mounting and the LRP830-08 features a
rectangular plate antenna.
The COM1 serial port is used to receive commands from the host and to
send the data back. The LRP830 COM1 can be configured either as a
DeviceNet, RS232, or RS422 interface.
COM2 is an RS232 serial port used to download new software releases and
to setup the configuration parameters.
Unpack the LRP830 and documentation and retain the original shipping
carton and packing material in case any items need to be returned. Inspect
each item carefully for evidence of damage. If any item appears to be dam
aged, notify your distributor immediately. The LRP830 is delivered with the
following components:
LRP830 (-04, -08) Reader/Writer
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LRP830 to Antenna Cable
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LRP830 Operator's Manual
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The following components are required for configuring a complete system:
Figure 4 shows the correct tag orientation as it passes the antenna. Figures
5-7 show the RF fields of the LRP830-04 and LRP830-08 antennas. Tables
1- 3 give the typical and guaranteed ranges of the LRP series tags.
Table 1 — Antenna to Tag Ranges, LRP-04 Antenna with Metal*
TagTypical Range (Z)
inches/mm
LRP125(HT)2.50/642.00/51
LRP250(HT)6.75/1716.00/152
LRP250HT-FLX6.75/1716.00/152
LRP-L55556.75/1716.00/152
LRP-L26665.75/1465.00/127
LRP-L49828.00/2037.00/178
LRP-L901409.00/2298.00/203
LRP-P1252.50/642.00/51
LRP-P38586.00/1525.00/127
LRP-P50507.00/1786.00/152
*These ranges are determined with metal near the -04 antenna as it would be in most conveyor
mountings. The actual tuning and testing of the -04 antenna is done with the antenna mounted be
tween two metal rollers on metal rails. The metal rollers are mounted 1/4” from the antenna.
NOTE: Proximity to metal, CRT devices, and other sources of electromagnetic radiation may affect
the range of the antenna.
Guaranteed Range
inches/mm
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Figure 5 — Side View of RF Field, LRP-04 Antenna, Metal
Table 2 — Antenna to Tag Ranges, LRP-40 Antenna, No Metal*
TagTypical Range (Z)
inches/mm
LRP125(HT)3.00/762.25/57
LRP250(HT)8.50/2167.50/191
LRP250HT-FLX8.50/2167.50/191
LRP-L55558.50/2167.50/191
LRP-L26667.00/1786.00/152
LRP-L498210.00/2549.00/229
LRP-L9014012.00/30511.00/279
LRP-P1253.00/762.25/57
LRP-P338587.50/1906.50/165
LRP-P50508.50/2167.50/191
*These ranges calculated with no metal near the antenna.
NOTE: Proximity to metal, CRT devices, and other sources of electromagnetic radiation may affect
the range of the antenna.
Guaranteed Range
inches/mm
Figure 7 — End View of RF Field, LRP-08 Antenna, No Metal
Figure 8 — Side View of RF Field, LRP-08 Antenna, No Metal
Table 3 — Antenna to Tag Ranges, LRP-08 Antenna, No Metal
TagTypical Range (Z)
inches/mm
LRP125(HT)8.00/2037.00/178
LRP250(HT)17.00/43215.00/381
LRP250HT-FLX17.00/43215.00/381
LRP-L555517.00/43215.00/381
LRP-L266616.00/40613.00/330
LRP-L498220.00/50818.00/457
LRP-L9014025.00/63522.00/559
LRP-P1258.00/2037.00/178
LRP-P385816.00/40614.00/355
LRP-505017.00/43215.00/381
*These ranges calculated with no metal near the antenna.
NOTE: Proximity to metal, CRT devices, and other sources of electromagnetic radiation may affect
Electromagnetic radiation and metal affect the range of the LRP830. Mount
the LRP830 and antenna to minimize the impact of these factors. The RF
field of the antenna can also cause errors when antennas are spaced too
closely together. Do not position adjacent antennas closer than 2 meters from
each other.
The remote antennas for the LRP830 have a cable length 2 meters. Sur
rounding the antenna with metal will greatly reduce the reading range of the
antenna. As rule of thumb, keep any metal structure away from the antenna
at least more than the reading range along the axis, and a third of such dis
tance on the side. The mounting holes are accessed through the inside of the
LRP830 Reader/Writer. Refer to Figure 9 for locations and dimensions.
Special mounting instructions must be followed to get optimal read/write
performance from the LRP830-08 antenna. Mount the antenna with a mini
mum 5.90" (150mm) spacing from any metal to the back or sides of the an
tenna, as shown in Figure 10.
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Figure 10 — LRP830-08 Antenna Mounting
Guidelines
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Isolate the LRP830 and antenna from electromagnetic
radiation.
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Avoid surrounding LRP830 and remote antenna with metal.
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Maintain at least 2 meters minimum spacing between adjacent
LRP830s or antennas.
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Stay within the guaranteed range for the tag to be used.
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Conform with EIA RS232, RS422 and RS485 standards.
Figure 11 shows the LRP connectors, LEDs and connector panel. Unused
connectors can be sealed with optional connector caps. Please see Appendix
B for ordering information.
Escort Memory Systems recommends that you use Belden cables 3082A
(trunkline) or 3084A (dropline) for RS485/RS422 communications. Use
Belden cable 9941 for RS232 communications. More information on Belden
cables can be found on their web site at www.belden.com.
3.4DeviceNet Connector
Figure 14 shows the connections for the DeviceNet connector.
Both the Digital Inputs and Digital Outputs are optically isolated circuits
with no common path between any channel terminal and another channel, or
between any channel and the LRP830 power. Because they are independent
and floating, the external wiring controls their use. The inputs can be config
ured for sensors with a PNP or NPN output. The outputs can be configured
in a Sourcing or Sinking configuration. The examples in Figures 17 through
24 show different connections for common input and output devices.
Inputs
The +IN terminal must be at a higher positive potential than the -IN terminal
for current to be sensed correctly. The voltage range is 4.5 to 30V between
the +IN and the -IN inputs and the maximum current is 25 mA.
Outputs
The output is limited to 30Vdc when off and 500 mA. These are maximum
ratings. A device that operates at 200 mA may destroy the output due to inrush current if that current exceeds 500 mA (e.g. an incandescent light). The
inductive "kick" (back EMF from a collapsing magnetic field) when a relay
is released can impose a voltage higher than 30V and destroy the output
transistor (use a backwards diode to clamp the back EMF).
Figure 17 shows the switch on the high side with the low side grounded. As
this is a "Dry" contact (the current is limited to 15 mA) a high quality sealed
switch should be used.
Figure 18 — Input from Sinking Contact
Figure 18 shows a switch connected on the low side with the high side con
nected to the positive supply. This also requires a high quality sealed contact.
Figure 21 shows a relay connected as a current sourcing "Contact." The re
lay is grounded and the +OUT terminal goes to the positive supply. The di
ode across the relay coil is essential to protect the output circuit and reduce
noise along the wiring. It should be connected at the relay to minimize the
length of wiring that could radiate noise. A 1N4001 or similar diode may be
used.
Figure 22 — Sinking Output "Contact"
Figure 22 shows a "Contact" sinking current from a relay, the -OUT terminal
is grounded and the relay goes to the positive supply. This configuration
must also have a diode across the relay coil to protect the circuit and reduce
noise.
In Figure 23, the LED and current limiting resistor are in series between the
positive supply and the +OUT terminal. The -OUT terminal is grounded.
The resistor in series with the LED sets the forward current. 1.2K will provide 20 mA LED current when run from 24 Vdc.
Figure 24 — Output to TTL or CMOS
In Figure 24 the output acts as an Open Collector. This will provide a TTL
or CMOS compatible signal when a 1K to 10K pull-up to +5 Vdc (the logic
supply) is used.