INDUSTRIAL DATA COMMUNICATIONS USER GUIDE SRM6200E-SLC Frequency Hopping Spread Spectrum Ethernet Radio Modem It is essential that all instructions contained in the User Guide are followed precisely to ensure proper operation of equipment.
Product User Guide FCC Notification This device complies with part 15 of the FCC rules. Operation is subject to the following conditions: 1) 2) This device may not cause harmful interference and This device must accept any interference received, including interference that may cause undesired operation. The device must be operated as supplied by Data-Linc Group.
SRM6200E-SLC User’s Guide Table of Contents Page Introduction Quick Start ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ Modem Configuration Main Menu Option (0): Set Operation Mode Main Menu Option (1): Set Baud Rate Main Menu Option (2): Edit Call Book Main Menu Option (3): Edit Radio Transmission Characteristics Main Menu Option (4): Show Radio Statistics M
SRM6200E-SLC User’s Guide 2 DATA-LINC GROUP PN 161-09990-002C rev 3/29/04
SRM6200E-SLC User’s Guide Introduction Data-Linc Group’s SRM6200E-SLC has been designed to mount in an Allen-Bradley SLC 500 Slot Rack. The SRM6200ESLC transceiver modem is a high performance, wireless radio modem designed for heavy-duty industrial data communications in the 902-928 MHz license-free band. It employs advanced spread spectrum frequency hopping and error detection technology to achieve very reliable, noise and interference immune operation.
SRM6200E-SLC User’s Guide Quick Start The SRM6200E-SLC comes pre-configured for your application (unless otherwise requested). In most cases, configuration settings are not required. Although each modem is tested before shipment, it is recommended that a bench test be done before the modem is installed in its application. In all applications, there is a master modem and one or more remotes. Some applications may also have one or more repeaters.
SRM6200E-SLC User’s Guide To change the crossover switch remove the SRM6200E-SLC from the Allen-Bradley SLC500 Slot Rack. Under the edge of the enclosure is a black and silver slide switch (S3- Diagram 3, page 24). If connecting to an Ethernet hub, the crossover switch should be set in the straight through (left) position. If connecting to a PC, PLC or most other Ethernet interface equipped devices, the crossover switch should be set in the crossover (right) position.
SRM6200E-SLC User’s Guide Configuration In most cases, the SRM6200E-SLC comes pre-configured from the factory. However, it may sometimes be necessary to change the configuration. Most parameters are changed in the radio section of the modem although there are a few settings that are set using switches. If you are not sure if you need to change the configuration of the SRM6200E-SLC, you probably don’t. Please contact Data-Linc Group for further information if you are unsure about your configuration.
SRM6200E-SLC User’s Guide Radio Parameter Configuration The SRM6200E-SLC allows you to set several parameters to suit your particular application. All adjustments are done through the SRM6200E-SLC setup program, a user interface that eliminates the need for setup diskettes or custom software. To access the configuration menu, connect the radio modem’s configuration port to any terminal program with port settings of 19.2Kbaud, 8 data bits, no parity and one stop bit.
SRM6200E-SLC User’s Guide Main Menu Option (0): Set Operation Mode When item (0) is selected, the Operation Mode Menu appears as shown in figure 2. The Operation Mode option is used to designate the method in which the particular SRM6200E-SLC will be used. The SRM6200E-SLC operates in a master to remote configuration; therefore, any radio modems that are intended to operate together must be set up as such.
SRM6200E-SLC User’s Guide (4) Point-to-Point Remote/Repeater Option 4 allows you to designate the radio modem to act as either a remote or a repeater, depending upon the instructions received from the master for the specific communications session. When a radio modem is placed in an ideal location, this setting offers the flexibility of using that radio modem as an end point in the communications link (remote) or to extend the link to a further point (repeater).
SRM6200E-SLC User’s Guide Main Menu Option (1): Set Baud Rate The baud rate setting affects the interface between the radio and Ethernet sections of the modem. All of the settings are factory set and should not be changed. Main Menu Option (2): Edit Call Book The Call Book is an innovative feature in the SRM6200E-SLC that offers both security and flexibility in use.
SRM6200E-SLC User’s Guide Entering or Modifying Numbers in the Call Book Entering or modifying call book numbers in the Call Book is a straightforward process. When in the Call Book menu select the entry number (0 – 9) you wish to edit. You will be prompted for the new number (formatting is automatic, you do not need to enter the dash). Once the number is entered (unless it is 000-0000) you will be asked for the call number of the first repeater to be used.
SRM6200E-SLC User’s Guide Main Menu Option (3): Edit Radio Transmission Characteristics When option (3) is selected in the main menu, the screen in figure 4 appears, which allows the user to modify the radio transmission characteristics of the radio modems. As stated in the warning, these parameters are for the experienced user who has a good understanding of the principles of radio data transmission. They should be changed only after consulting this manual.
SRM6200E-SLC User’s Guide Table 2: Minimum Packet Size Settings (bytes) Setting Min Packet Siz e RF Data Rate = 2 Setting Min Packet Siz e RF Data Rate = 3 0 16 0 8 1 21 1 12 2 26 2 16 3 32 3 20 4 37 4 24 5 42 5 28 6 48 6 32 7 53 7 36 8 58 8 40 9 64 9 44 Table 3: Maximum Packet Size Settings where RF Data Rate=3 Minimum Setting 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 1
SRM6200E-SLC User’s Guide Table 4: Maximum Packet Size Settings where RF Data Rate=2 Minimum Setting Maximum Setting 0 1 2 3 4 5 6 7 8 9 0 15 36 58 79 100 121 143 164 185 206 1 20 42 63 84 105 127 148 169 190 212 2 26 47 68 90 111 132 153 175 196 217 3 31 52 74 95 116 137 159 180 201 222 4 36 58 79 100 121 143 164 185 206 228 5 42 63 84 105 127 148 169 190 212 233 6 47 68 90 111 132 153 175 196 217 238 7 52 74 95 1
SRM6200E-SLC User’s Guide (5) RF Xmit Power The SRM6200E-SLC offers users the ability to modify the Transmission Power of the radio modem. There are 10 power settings available (1-10) which are roughly linear. Therefore a setting of 10 is full power or (1 Watt) and 1 is 10% power (or 100 mw).
SRM6200E-SLC User’s Guide Main Menu Option (4): Show Radio Statistics Option (4) in the main menu allows the user to view data transmission statistics which have been gathered by the Transceiver during the most recent session. Statistics are gathered during each data link and are reset when the next link begins. Ideally, noise levels should be below 30, and the difference between the average signal level and average noise level should be 30 or more.
SRM6200E-SLC User’s Guide Number of Disconnects If, during the course of performing a link test, the link between the master and the slave is broken, and the radios lose carrier detect, the occurrence is recorded in the Number of Disconnects value. The value indicates the total number of disconnects that have occurred from the time the link test started until the radio was put into config mode. Under normal operating conditions, the number of disconnects should be 0.
SRM6200E-SLC User’s Guide Main Menu Option (5): Edit Multi-Point Parameters Figure 5: Multi-Point Parameters Shown below are example settings. Please refer to supplied configuration sheets for your modem’s configuration. In a multi-point network, it is critical to know how many radio modems are being used as repeaters. Any radio modem that is used as a repeater essentially becomes a master to the Remotes and other repeaters to which it is communicating.
SRM6200E-SLC User’s Guide The Retry Odds parameter determines the probability that the Remote will attempt to retransmit the packet to the Master; a low setting will assign low odds to the Remote attempting to transmit and conversely a high setting will assign high odds. An example of how this parameter might be used would be when considering two different remotes in a multi-point network, one close in with a strong RF link and the other far from the Master with a weak link.
SRM6200E-SLC User’s Guide SubNet ID The SRM6200E-SLC series modems offer a SubNet ID system for use in multi-point networks using Network ID. This feature allows the users to dictate what path a given repeater or remote will use to achieve a link to the network Master. For example, if a remote modem in a given network has line of sight to the network Master and one or more repeaters, but only one repeater is close to that Remote, SubNet ID can be used to link that Master with the proper Repeater only.
SRM6200E-SLC User’s Guide Main Menu Option (8): Password Caution: If the password feature is enabled and you cannot remember the password, the radio modem will have to be returned to Data-Linc Group to have the password disabled. Use with caution. Option (8) in the Main Menu allows the user to set a password which will prevent unauthorized users to change the configuration of the modem. Setting a Password To enable the Password feature choose (8) from the Main Menu.
SRM6200E-SLC User’s Guide SRM6200E-SLC Location Selection Placement of your SRM6200E-SLC is likely to have a significant impact on its performance. In general, the rule of thumb with the SRM6200E-SLC is that the higher the placement of the antenna the better the communication. In practice you should also place the radio modem itself away from computers, telephones, answering machines, and other similar equipment.
SRM6200E-SLC User’s Guide SRM6200E-SLC Front Panel LEDs The LEDs on the SRM6200E-SLC’s front panel provide important information on the operation of the radio modem. The below tables describe the LED’s indication.
SRM6200E-SLC User’s Guide Diagram 3 The locations of the jumpers and switches of the SRM6200E-SLC.
SRM6200E-SLC User’s Guide Sample Data Communication Links The SRM6200E-SLC’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 SRM6200E-SLC and get around obstacles. Diagram 4 shows the most common and straightforward link, a master communicating to a remote in a dedicated link.
SRM6200E-SLC User’s Guide Diagram 6 depicts an example of a point-to-multi-point system. In this example any data sent from the Master is broadcast to all four remotes. One remote is receiving data directly from the Master, two others are connected through a repeater while the last one is getting its data from a repeater configured as a repeater/remote.
SRM6200E-SLC User’s Guide Technical Specifications Pow er Requirements 10 to 28 VDC In Operating Pow er 8 watts Max, 2 watts minimum Operating Frequency 902-928 MHz ISM band (no FCC site license required) Operating Temperature R an g e - 400 to 1670 F (-400 to 750 C) RF Data Rate 1 4 4 o r 1 8 8 kb p s R F R an g e Rated: 25 miles (40 km) with line-of-sight @ signal>noise+20; 35 miles (56 km) with line-of-sight under optimal conditions RF output pow er 0.1 to 1.0 Watt (selectable on 0.
SRM6200E-SLC User’s Guide Troubleshooting “I have two radio modems, one configured as a master and the other as a remote. When they are plugged in, the LEDs indicate they are receiving power, and yet they will not connect. Why not?” There are several reasons why this may occur: 1. No antenna attached to the Modem. 2. The radio modems are not in each other’s Call Books. 3. The number of the Remote is in the Master’s Call Book, but the Master’s menu is not set to call that number. 4.
SRM6200E-SLC User’s Guide Technical Support Data-Linc Group maintains a fully trained staff of service personnel who are capable of providing complete product assistance. They can provide you with technical, application and troubleshooting, spare parts and warranty assistance. Our technical staff is based in Bellevue, Washington USA and may be reached at (425) 882-2206 or e-mail support@data-linc.
