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Summary of Contents for FreeWave LRS-455-EU
- Page 1 LRS-455-EU Data Transceiver Manual FreeWave Technologies LRS-455-EU Data Transceiver Version 1.0, Revision A FreeWave Technologies, Inc. 1880 South Flatiron Court Boulder, CO 80301 (303) 381-9200 (303) 786-9948 Fax www.FreeWave.com LUM0032AA Rev A Version 1.0...
- Page 2 (RMA) for evaluation of Warranty Coverage. In no event will FreeWave Technologies Inc., its suppliers, and its licensors be liable for any damages arising from the use of or inability to use this Product. This includes business interruption, loss of business information, or other loss which may arise from the use of this Product.
- Page 3 This device must be operated as supplied by FreeWave Technologies, Inc. Any changes or modifications made to the device without the express written approval of FreeWave Technologies may void the user's authority to operate the device.
- Page 4 LRS-455-EU Data Transceiver Users Manual ETSI N OTIFICATIONS LRS-455-EU series radios have been certified to the following ETSI standards: ETSI EN 300 113-1:2009 ETSI EN 300 113-2:2009 ETSI EN 301 489-1:2008 EN 61000-4-2: 1995 With A1:1998 and A2:2001 EN 61000-4-3: 2006...
- Page 5 LRS-455-EU Data Transceiver Users Manual LUM0032AA Rev A Version 1.0...
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Page 6: Table Of Contents
LRS-455-EU Data Transceiver Users Manual Table of Contents ABOUT FREEWAVE TRANSCEIVERS ......................... 1 CHOOSING A LOCATION FOR THE TRANSCEIVERS ..................1 ................ 1 HOOSING OINT OINT OR OINT ULTI OINT PERATION ................ 2 HOOSING OINT OINT OR OINT ULTI OINT PERATION QUICK START ON A POINT-TO-MULTIPOINT NETWORK ................ - Page 7 LRS-455-EU Data Transceiver Users Manual FACTORY DEFAULT SETTINGS ......................... 23 RS-422 RS-485 I ....................24 PERATIONAL NFORMATION RS-422 and RS-485 Full Duplex Pin-Outs ......................25 RS-485 Half Duplex Pin-Outs ..........................25 RS232 P ............................25 SSIGNMENTS RF B ..............................26...
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Page 8: About Freewave Transceivers
Placement of the FreeWave transceiver is likely to have a significant impact on its performance. The key to the overall robustness of the radio link is the height of the antenna. In general, FreeWave units with a higher antenna placement will have a better communication link. In practice, the transceiver should be placed away from computers, telephones, answering machines and other similar equipment. -
Page 9: Choosing Point-To-Point Or Point-To-Multipoint Operation
LRS-455-EU Data Transceiver Users Manual Choosing Point-to-Point or Point-to-MultiPoint Operation A Point-to-Point network is limited to one Master and one Slave transceiver. In a Point-to-MultiPoint network (also referred to as MultiPoint network) the transceiver, designated as a Master, is able to simultaneously communicate with numerous Slaves. In its simplest form, a MultiPoint network functions with the Master broadcasting its messages to all Slaves and the Slaves responding to the Master when given data by the device connected to the data port. -
Page 10: Quick Start On A Point-To-Multipoint Network
At the Main Menu, press 3. • Set FreqKey, Max Packet Size, Min Packet Size, RF Data rate identical on all radios in the network. Changing these values may help to eliminate interference from other FreeWave networks. Note: • Press Esc to get back to Main menu. -
Page 11: Quick Start On A Point-To-Point Network
FreeWave Wireless Data Transceivers just received from the factory: Connect antennas to the transceivers. Freewave Technologies recommends that the antenna port be loaded at all times to prevent damage to the LRS-455-EU radios. Noise potential may be reduced on the bench by lowering the Xmit power. -
Page 12: Setting Up A Transceiver
Operation Mode The Operation Mode option designates the method FreeWave transceivers use to communicate with each other. FreeWave transceivers operate in a Master to Slave configuration. Before the transceivers can operate together, they must be set up to properly communicate. - Page 13 Point-to-Point Mode 6 allows the transceiver to be controlled entirely through software Slave/Master commands. A number of key parameters in FreeWave's user interface may be Switchable (6) changed either directly with a program such as Windows Terminal or through the use of script files.
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Page 14: Baud Rate
LRS-455-EU Data Transceiver Users Manual Baud Rate This setting is the communication rate between the transceiver and the instrument to which it is connected. It is important to note that this is independent of the baud rate for the other transceiver(s) in the network. - Page 15 There are six data word length and parity configurations available to be used with Data, Parity FreeWave transceivers. The default setting is 0 (8, N, 1) and is the most commonly used serial communications protocol. Select the appropriate option to communicate with the end device.
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Page 16: Modbus Rtu Timing
LRS-455-EU Data Transceiver Users Manual Baud Rate Description pressing/toggling the Set-up button/switch, if available. OEM boards may also enter Setup when Pin 2 is grounded. The Main Data Port is the RS232 port. The OEM modules use a 2-row, 2 mm female connector. - Page 17 LRS-455-EU Data Transceiver Users Manual the radio will wait for 6 slots, gathering data up the whole time. At the end of the 6 slots, the radio will send all received data in one “burst”. This is the appropriate setting for most Modbus RTU devices.
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Page 18: Call Book
The Master must be programmed to call the Slave. The Call Book allows users to incorporate up to 10 FreeWave transceivers, and designate which Slave the Master will call. To set the Entry to Call option, select the appropriate option in the drop down. -
Page 19: Radio Transmission Characteristics
The 400MHz Data Transceiver has the option to operate in a Frequency Division Duplex mode by transmitting on one frequency and receiving on another. The LRS-455-EU transceivers must be programmed to operate on the appropriate frequency. To program the transceiver for single channel operation, enter the frequency, in Megahertz, into the TX and RX Frequency slots. -
Page 20: Xmit Rate
Max Packet Size (3) X FreeWave transceivers utilize a Master Transmit Beacon to provide low current consumption in the slave radios. The slave radios will turn their receiver off when no data is being passed. The Xmit Rate setting allows the duty cycle of the Master Transmit Beacon to be changed. A setting of 0 is the highest duty cycle and a setting of 9 is the lowest duty cycle. -
Page 21: Rf Xmit Power
Slave may need to accept calls from more than 10 different Masters. When Slave Security is set to 1, the transceiver will accept calls from any other FreeWave transceiver. Additional network security measures may be taken to prevent unauthorized access, such as changing default settings for FreqKey, Hop Table or Frequency Zones. -
Page 22: Retry Time Out
The Retry Time Out parameter is useful when a MultiPoint network has a roving Master or Slave(s). As the link gets weaker, a lower setting will allow a poor link to break in search of a stronger one. Setting Retry Time Out to 20 is recommended in areas where several FreeWave networks exist. Note: This setting will allow Slaves to drop the connection if the link becomes too weak, while at the same time prevent errant disconnects due to interference from neighboring networks. -
Page 23: (A) High Noise
When a noise problem is shown to be helped by way of the High Noise option, chances are that the noise may be further squelched by use of a band pass filter available for sale from FreeWave Technologies. (C) R EMOTE This setting enables the user to connect Remote LEDs through the diagnostics port. -
Page 24: Multipoint Parameters
EPEATERS The Repeaters selection must be set to On if a repeater is to be used in the network. However, if the network will not utilize a repeater, FreeWave recommends setting Repeaters to Off to provide higher throughput. (1) M... -
Page 25: Max Slave Retry
LRS-455-EU Data Transceiver Users Manual (2) M LAVE ETRY The Max Slave Retry setting defines how many times (0 to 9) the Slave will attempt to retransmit a packet to the Master before beginning to use a back-off algorithm (defined by the Retry Odds setting). Slave retries will stop when an acknowledgement is received from the Master. -
Page 26: (A) Slave/Repeater
A diagnostics cable. (Available from FreeWave Technologies.) Diagnostics software. (Available on the User Manual and System Tools CD.) NOTE: When collecting diagnostics from an LRS-455-EU network, FreeWave recommends setting the diagnostics polling rate to 400 ms or higher. For more information on Diagnostics, please contact FreeWave Technical Support at (303) 381-9200. -
Page 27: (D) Radio Id
LRS-455-EU Data Transceiver Users Manual The default (disable) setting for both Rcv and Xmit is F. Notes: A Master will always transmit and receive on 0. The Master may be set to use alternate Subnet ID values. Changing these settings on the Master is not recommended, under normal circumstances. -
Page 28: Radio Information
LRS-455-EU Data Transceiver Users Manual Radio Information Radio Statistics in the Main Menu allows the user to view data transmission statistics gathered by the transceiver during the most recent session. This is valuable when the user needs to know the signal strength and noise levels of the link. -
Page 29: Average Signal Level
ADIO EMPERATURE The Radio Temperature value is the current operating temperature of the transceiver in degrees Celsius. For proper operation, a FreeWave transceiver must be in the temperature range of -30° to +60° C. LUM0032AA Rev A Version 1.0... -
Page 30: Factory Default Settings
LRS-455-EU Data Transceiver Users Manual Factory Default Settings FreeWave 455MHz transceivers are shipped from the factory with the following Default Settings: Operation Mode Default MultiPoint Parameters Default Point to Point Slave (1) MASTER PACKET REPEAT 0 (2) MAX SLAVE RETRY... -
Page 31: Operational Rs-422 And Rs-485 Information
The most common operation of RS-485 is a two-wire comprised of a 120 ohm impedance single twisted pair. In this system the loading of the FreeWave transceiver is as described above which allows up to 256 1/8 unit load units on the bus. Maximum line length is also 4,000 feet with a third wire required for data common. -
Page 32: Rs-422 And Rs-485 Full Duplex Pin-Outs
LRS-455-EU Data Transceiver Users Manual RS-422 RS-485 F UPLEX Function Bare Board Pin Number DE-9 Pin Number Signal Ground 4 or 6 RS-485 H UPLEX Function Bare Board Pin Number DE-9 Pin Number Wire to both pins for Bus +... -
Page 33: Rf Board Pinout
For up-to-date troubleshooting information check the Support page at www.FreeWave.com. FreeWave provides Technical Support, Monday through Friday, 8:00 AM to 5:00 PM, Mountain Time (GMT -7) Call us toll-free at 1-800-548-5616 or factory direct after hours at 303-381-39200 or email us moreinfo@FreeWave.com... - Page 34 LRS-455-EU Data Transceiver Users Manual Frequency List The LRS-455 transceivers tune from 435MHz to 470MHz with a tuning resolution of 6.25KHz. This gives a total of 5600 available channels. Using the license allowed frequency, the channel number can be determined using the following formula.
- Page 35 LRS-455-EU Data Transceiver Users Manual Channel# Frequency Channel# Frequency Channel# Frequency 437.625 2480 450.500 4540 463.375 437.750 2500 450.625 4560 463.500 437.875 2520 450.750 4580 463.625 438.000 2540 450.875 4600 463.750 438.125 2560 451.000 4620 463.875 438.250 2580 451.125 4640 464.000...
- Page 36 LRS-455-EU Data Transceiver Users Manual Channel# Frequency Channel# Frequency Channel# Frequency 441.125 3040 454.000 5100 466.875 1000 441.250 3060 454.125 5120 467.000 1020 441.375 3080 454.250 5140 467.125 1040 441.500 3100 454.375 5160 467.250 1060 441.625 3120 454.500 5180 467.375 1080 441.750...
- Page 37 LRS-455-EU Data Transceiver Users Manual Channel# Frequency Channel# Frequency 1540 444.625 3600 457.500 1560 444.750 3620 457.625 1580 444.875 3640 457.750 1600 445.000 3660 457.875 1620 445.125 3680 458.000 1640 445.250 3700 458.125 1660 445.375 3720 458.250 1680 445.500 3740 458.375...
- Page 38 LRS-455-EU Data Transceiver Users Manual Errata 1.70 IRMWARE ERSION • Point-to-Point Repeaters are NOT supported 1.67 IRMWARE VERSIONS O AND LOWER • Setting Master Packet Repeat to 0 and Modbus RTU to 1 results in a large data transmission delay. Master Packet Repeat should be set to 1 or higher if the Modbus RTU setting is enabled.
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