Data-Linc Group PlantLinc PLR5000 User Manual Download Page 1

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SER

UIDE

NDUSTRIAL

ATA

OMMUNICA

TIONS

It is essential that all instructions contained in the User Guide are followed precisely to ensure proper operation of equipment.

Industrial Frequency Hopping
Spread Spectrum Radio Modem

PlantLinc

™

5000

PLR5000

Summary of Contents for PlantLinc PLR5000

Page 1: ...TA C OMMUNICATIONS It is essential that all instructions contained in the User Guide are followed precisely to ensure proper operation of equipment Industrial Frequency Hopping Spread Spectrum Radio Modem PlantLinc 5000 PLR5000 ...

Page 2: ...nterference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is...

Page 3: ...u Option 2 Edit Call Book 9 Main Menu Option 3 Edit Radio Transmission Characteristics 12 Main Menu Option 4 Show Radio Statistics 16 Main Menu Option 5 Edit Multipoint Parameters 18 Using an External Antenna 21 Modem Front Panel LEDs 22 Sample Data Communication Links 23 Technical Specifications 25 Troubleshooting 26 Technical Support 28 Return Material Authorization 28 Contact Information 28 App...

Page 4: ...PlantLinc PLR5000 User s Guide P N 161 09888 001 DATA LINC Group 2 ...

Page 5: ...connect with a straight through RS232 cable to a device configured for Data Terminal Equipment DTE operation The user guide covers the operating modes and configurations that are available to users of the PLR5000 It also provides the user with bench testing instructions technical information and specifications for the PLR5000 In most applications the PLR5000 radios come from Data Linc Group pre co...

Page 6: ...pidly on the Master radio modem and the Remote with the jumper attached Remove the jumper from the REMOTE radio modem The letter display scrolling across the screen should stop and the O LED will stop flashing at the MASTER The I LED will flash each time the key is pressed indicating that the radio modem is receiving a data input signal on the RS232 port The O LED on the REMOTE will flash each tim...

Page 7: ...ehind the pinhole next to the DB 9 connector on the front of the modem While any terminal program that can be set to 19200 baud will work examples for this user guide were generated using the Microsoft Windows 2000 application HyperTerminal Note When using HyperTerminal set Handshaking to none Table 1 Terminal Settings Parameter Setting Baud Rate 19200 Data Bits 8 Parity None Stop Bits 1 Flow Cont...

Page 8: ...e configuration When designated as a Master in point to point mode the radio modem will call any or all Remotes it is instructed to call in the call book The Master determines the settings used for all Radio Transmission Characteristics regardless of the settings in the Remotes and or Repeaters 1 Point to Point Remote When set up as a point to point Remote a PLR5000 will communicate with any Maste...

Page 9: ... remote link generally on the order of 50 This impact is generally noticed only when using the radio modems at 38 4 Kbaud The throughput does not decrease further if two Repeaters are used 6 Point to Point Remote Master Switchable Mode 6 is a versatile option that allows the radio modem to be controlled entirely through software commands When in mode 6 a number of key parameters in the radio modem...

Page 10: ...itional features are support for ModBus RTU and support various data word lengths and parity These features are available under selection options A and B There are six data word length and parity configurations available In the Set Baud Rate menu select A and type in the number corresponding to the configuration below The default setting is 0 8 N 1 and is the most commonly used serial communicatio...

Page 11: ...r s Call Book 3 The Master must be programmed to call the Remote As shown in Figure 3 the Call Book allows users to set up a list of up to 10 PLR5000s with which to communicate Designate up to 2 Repeaters to be used in communicating with a given radio modem and tell the Master which Remote to call To direct the Master to call a Remote the Remote must be in the Call Book Menu A specific remote may ...

Page 12: ... be back in the Call Book menu screen If you enter a Repeater number you will then be prompted for the call number of the second Repeater to use If a second Repeater is being used enter the call number at this time if not enter the escape key Once again the radio modem will retain your entries as shown in the updated Call Book menu screen Note It is important that the Call Book slots 0 9 are fille...

Page 13: ...mple shows the Call Books of a multipoint system comprised of a Master Repeater and remote in which the Remote can communicate either through the Repeater or directly to the Master Multipoint Master Call Book Unit Call Book number 555 0001 Entry Number Repeater 1 Repeater 2 0 000 0000 1 000 0000 No call book number entries are necessary in the Master s Call Book The Master s Call Book may be progr...

Page 14: ...the user to modify the hopping patterns of the radio modems to minimize the interference with other PLR5000 radio modems in operation in the area For instance if there were 10 pairs of PLR5000s in operation within a factory or refinery changing the Frequency Key would ensure that they would not jump onto the same frequencies at the same time for the same length of time There are 15 choices availab...

Page 15: ... 40 9 64 9 44 Table 4 Maximum Packet Size Settings where RF Data Rate 3 Maximum Setting 0 1 2 3 4 5 6 7 8 9 0 8 24 40 56 72 88 104 120 136 152 1 12 28 44 60 76 92 108 124 140 156 2 16 32 48 64 80 96 112 128 144 160 3 20 36 52 68 84 100 116 132 148 164 4 24 40 56 72 88 104 120 136 152 168 5 28 44 60 76 92 108 124 140 156 172 6 32 48 64 80 96 112 128 144 160 176 7 36 52 68 84 100 116 132 148 164 180...

Page 16: ...Transmit Rate 0 the radio modems will transmit data back and forth continuously and the strength of the signal may be gauged by viewing the Show Radio Statistics option Because the radio modems transmit continuously when Transmit Rate is set to 0 whether or not they have data to send they use radio frequency spectrum unnecessarily Therefore Transmit Rate 0 should be used only as a diagnostic tool ...

Page 17: ...io Parameters provides the option of allowing the RTS line pin 7 on the Master radio modem to control the CTS line pin 8 of the Remote This pass through control can be enabled in point to point mode as well as point to multi point In the latter the Master RTS line will control all Remotes CTS lines When this mode is enabled the CTS line ceases to function as flow control To enable this mode enter ...

Page 18: ... displayed Average noise levels will typically fall in the range of 15 to 30 Average noise levels significantly higher than this are an indication of a high level of interference that may degrade the performance of the link High noise levels can often be improved with bandpass filters antenna placement or antenna polarization Please contact Data Linc Group for more information Average Signal Level...

Page 19: ...aneously be in communication with numerous Remotes In its simplest form a multipoint network functions with the Master broadcasting its messages to all Remotes and the Remotes responding to the Master as appropriate Traditionally a multipoint network is used in applications where data is collected from many instruments and reported back to one central site As such the architecture of such a system...

Page 20: ...from the Master in a large multipoint system then all system capacity would be spent having the Master listen for acknowledgments from the Remotes Because the transmission is not acknowledged by the Remotes 100 confidence does not exist that every remote has received every message from the Master To address this issue the user may modify option 1 Master Packet Repeat assigning a value between 0 th...

Page 21: ... setting 0 the radio modem will transmit when RS232 data is received The Repeater s hopping pattern must also be set in a multipoint network this is accomplished with parameter 5 Repeater Frequency Setting this parameter is in contrast with point to point mode where the Repeater automatically uses the Master s hopping pattern The Repeater may be programmed to either use the Master s hopping patter...

Page 22: ...t ID The Xmit SubNet ID is used only by Repeaters and is the ID that a Repeater sends out when sending data to other Repeaters or Remotes The Rcv SubNet ID is the ID that Repeaters or Remotes look for to receive data Note The Master is not affected by these settings Only Repeaters and Remotes use these settings Remotes only use Rcv SubNet ID Modem configurations are as follows see Diagram 1 below ...

Page 23: ...cable These antennas allow versatility in the PLR5000 s deployment extending its range and allowing it to get around obstructions The use of an external antenna may radically improve the results obtained with PLR5000 radio modems It is imperative to obtain line of sight with the antennas and changes in placement height of as few as a couple of feet may make the difference between no link and one t...

Page 24: ... SR O O O RF link established SR SA O O SR SA O O SR O O O Data flow Master to Remote SR SA FY O SR SA O FG SR SA O O Data Remote to Master SR SA O FG SR SA FY O SR SA O O Configuration mode SR SA O MG SR SA O MG SR SA O MG Data out LED lights momentarily when the configuration button is depressed Table 7 LED Status in Point to Multipoint P power C carrier detect I data in O data out Configuration...

Page 25: ...7 8 9 1 2 3 4 DB 9 Female Sample Data Communication Links The PLR5000 s versatility allows data communication links to be established using a variety of different configurations This in turn makes it possible to extend the range of the PLR5000 and communicate around obstacles Diagram 2 shows the most common and straightforward link a Master communicating to a Remote in a dedicated link Diagram 2 P...

Page 26: ... Yagi antennas could be used on either or both of the Master and remote Diagram 3 Point to Point with Repeater When a Repeater is used the RF speed is cut in half making 38 4 Kbaud uncompressed throughput unachievable The baud rate however may still be set at 38 4 Diagram 4 depicts an example of a point to multipoint system In this example any data sent from the Master is broadcast to all three Re...

Page 27: ...um 23 dBm Error Detection 32 Bit CRC with packet retransmit Antenna Bench test whip provided Standard SMA connector allows use of external directional or omni directional antennas Power Requirements 10 5 18 VDC Power Consumption 550 mA Transmit 200 mA Receive Connector RS232 9 pin female 9 pin male to 9 pin female straight Unit Address Unique factory set Operating Modes Point to Point Point to Poi...

Page 28: ...s glass contains a metal film that is very effective in blocking all radio waves If your situation is as described above the preferable solution is to install an antenna outdoors I have several radio modems set up to communicate with each other in a point to multipoint mode yet they are not establishing contact In a multipoint system there are two critical parameters which must be set correctly to...

Page 29: ...e or both ends of the system Ensure that each radio modem port setting and the device that it is connected to are set up the same It is also possible that the devices are not properly configured to communicate with each other The quickest acid test in a situation like this is to try to get the application up and running using an RS232 null modem cable before deploying the PLR5000 in the field The ...

Page 30: ...terial and workmanship for one year from date of shipment to original user Data Linc Group will replace or repair at our option any part found to be defective Buyer must return any part claimed defective to Data Linc Group transportation prepaid Return Material Authorization If a part needs to be sent to the factory for repair contact Data Linc Group s corporate office to request a Return Material...

Page 31: ...PlantLinc PLR5000 User s Guide P N 161 09888 001 DATA LINC Group 29 Appendix A PlantLinc PLR5000 Enclosure Dimensions ...

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