Laser LT RD-1550 - 1.5" Remote Display Version 1.
Contents About This Manual ................................................................................................................................... 1 1.0 Introduction.................................................................................................................................. 1 1.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2 Annunciators . . . . . . . . . . . . . .
6.0 Appendix .................................................................................................................................... 30 6.1 6.2 6.3 6.4 6.5 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Updating the Laser LT. . . . . . . . . . . . . . . . . . .
About This Manual This manual is intended for use by service technicians responsible for installing and servicing the Laser LT® LED remote display. Installation procedures are presented in the order likely to be followed by the installer: pre-installation setup, configuration, and on-site installation. This manual can be viewed and downloaded from the Rice Lake Weighing Systems web site at www.ricelake.com. Rice Lake Weighing Systems is an ISO 9001 registered company. 1.
1.1 Safety Safety Symbol Definitions Indicates a potentially hazardous situation that, if not avoided, could result in serious injury or death, and WARNING includes hazards that are exposed when guards are removed. CAUTION Indicates a potentially hazardous situation that, if not avoided may result in minor or moderate injury. Indicates information about procedures that, if not observed, could result in damage to equipment or Important corruption to and loss of data.
1.2 Annunciators The Laser LT remote display uses a set of six designated LED annunciators (shown in Figure 1-3) and a red and green (stop/go feature lights). The annunicators are dependent on the status character. They can also be associated with ASCII characters (tokens) and are shown in Table 4-1 on page 25 and the default status characters are shown in Table 3-2 on page 15. • GR and NT annunciators are lit to show whether the displayed weight is a gross or net weight.
1.2.1 Tokens The Laser LT has tokens that can be used in the general formatting of a serial string. The Laser LT will light the status annunicators (tokens) based on the ASCII characters sent in the serial string. Those tokens are: • Gross Character • Net Character • Primary Character • Secondary Character • Negative Character • Overload Character • Center of Zero Character • Motion Character These tokens and their function are explained in further detail in Table 4-1 on page 25 and 25. 1.2.
2.0 Installation and Setup The Laser LT remote display can be easily set up and configured. This section describes basic installation, AC wiring, RS-232 and 20mA current loop connections. Once installation setup is complete, go to Section 3.0 for information on configuring the Laser LT. Use a wrist strap to ground yourself and protect components from electrostatic discharge (ESD) when CAUTION working inside the enclosure. WARNING The Laser LT has no on/off switch.
2.3 Wiring The Laser LT remote display provides two cord grips located on the underside of the enclosure for cabling; one for inputs, and one for outputs. An AC power cord is supplied with the unit. Only the serial communications cable must be connected. Use the following steps to wire the remote display. The Laser LT remote display has no on/off switch. Before opening the unit, ensure the power cord is WARNING disconnected from the power outlet.
2.3.2 AC Wiring The Laser LT AC power cord comes in through a cord grip to the AC to DC power supply. The DC then goes to J5 on the main CPU board (see Table 2-3 on page 9). Power Supply Figure 2-4. AC Wiring Cable assembly, power supply to CPU UL Approved Supply Power Power Cord Figure 2-5. UL Approved Unit Wiring Refer to the following table for AC wiring connections.
2.3.3 DC Wiring Alternatively a 9-36V DC power converter may be supplied. To connect DC power to the DC to DC converter, wire the positive voltage to pin 1 (red wire - right hand side of connector), ground to pin 3 (black wire-left side) on CN1 DC power supply . PIN 1 Figure 2-6. DC Power Supply Connector Pin Function CN1 1 V+ 2 NC 3 V- (GND) Table 2-2.
2.3.4 Serial Wiring Serial communications are connected to the CPU board using clamp spring connectors on J2, J3 and J4 (see Table 2-3 for wiring positions ). To connect the communications cable to the remote display, do the following: 1. If the enclosure is not open, make sure power is disconnected from the unit and open the latches on the enclosure. 2. Loosen the serial cable cord grip and push enough communications cable into the enclosure to allow attachment to the CPU board. 3. Strip 1/4" (.
Communications Cable Distance Limitations The maximum cable lengths that can be used for various communications types depend on a number of factors. These include: output impendance of the transmitter, electrical noise in the environment; cable capacitance, gauge, termination, and shielding. Given that these and other factors will affect the maximum usable cable length, the following distances can be used as a general guide for the Laser LT communications cabling.
2.3.6 Commport Jumper The com port jumper (shown in Figure 2-7, upper right hand corner) is used when an option card is plugged into J7 on the CPU board (see Figure 2-9 for the J7 location). Available option boards include: • Fiber optic board - accessed Port 3 • RS-232/422 board - accessed Port 3 • Ethernet TCP/IP board - accessed Port 3 • USB board - accessed Port 3 • Ethernet wireless - accessed Port 4 If using one of the listed option boards, the commport jumper setting must be moved to the right.
3.0 Configuration Once the Laser LT remote display is installed, it may need to be configured. This can be done manually through the front panel and is explained in Sections 3.2 through 3.6. Using Auto-Learn (Section 3.1) simplifies installation by automatically detecting the communications format and data rate used by the indicator and may eliminate the need for configuration. Use the Revolution Utility to help configure the Laser LT using your PC.
Use the following quick steps for Auto-Learn. 1. Ensure that Lock in Configuration mode is set to the Off position. SERIAL TEST HOLD WT STDSTL NODATA LOCK SCHAR E CHAR LW POS SUPP 0 Off On Off On No Com Blank Off On STX CR SOH LF CR LF FF ETX 000000 On Off CONFIG KEYPAD DIGIO VERS Figure 3-2. Lock Parameter Location 2. Set up the Host Port. 3. Enter the Auto-Learn feature from Run Mode by pressing and holding the Gross/Net key for three seconds. 4.
The Laser LT remote display can be configured using a series of menus accessed from the front panel of the unit as shown in Figure 3-4. ZERO G/N TARE UNITS B/N PRINT UNITS Figure 3-4. Configuration Setup Buttons Use the UP/DOWN, LEFT/RIGHT buttons to navigate through menu items and the ENTER button for setting a selection. Table 3-1 summarizes the functions of each of the main menus and Figure 3-5 illustrates the main menu selections.
Figure 3-6 shows the Configuration menu.
CONFIG Menu E CHAR CR LF FF ETX The Laser LW POS 000000 Defines the position of the last character in a weight. Range 0-63 with 0 as the default. • With a 0 setting, the Laser LT will search from the end of the data stream for the first group of digits. • With a non-zero setting, the Laser LT will begin searching for digits at the specified location. • If LWPOS is past the weight in the data stream, it will work its way back to the first group of digits it finds.
CONFIG Menu SP IND None Toledo DWM4 1 LB-OZ F2500 Fairbanks Select, decode status, and settings for special indicator types. None Toledo or Fairbanks format SPECIAL NOTES: • If using a Metler Toledo indicator named something other than a numeric model, you may need to set to None • If using a Metler Toledo numbered model indicator, set to Toledo Flexweigh DWM4 1 mode 1 format Condec pound ounce format Fairbanks 2500 and 9401 compatible format Table 3-2.
3.3 Serial Communications The Laser LT remote display has four serial ports available: • Port 1, 2, 3, and 4 - Provides communication with the indicator and other remote or serial devices. There are four sub-parameters associated with Ports 1, 2, 3 and 4 which are shown in Figure 3-7. Each port can be independently configured for baud rate, 7 or 8 bits, 1 or 2 stop bits and whether an EDP command will echo to the host (see Table 3-4).
Serial Menu Parameter Choices Description Level 2 Submenus Port 1, 2, 3, and 4 BAUD DATA BITS STOP BITS ECHO Configure Ports 1, 2, 3, and 4. See Level 3 submenu parameter descriptions. HOST PORT 2 PORT 1 PORT 3 PORT 4 Allows the user to select which port is connected to the weight indicator or host device. KEYDST PORT 2 OFF PORT 1 PORT 3 PORT 4 Allows the user to select which port the key press data will be sent to.
3.4 Testing the Remote Display The Laser LT remote display provides a test menu to check the hardware of the remote display. These tests can be accessed through the main menu (Figure 3-8). CONFIG SERIAL TEST KEYPAD DISPLA DIGIO VERS STRTUP INTENS RESET On 1-7 Off Figure 3-8. Test Menu Choices TEST Menu Parameter Choices DISPLA Description When this feature is enabled, all LEDs remain lit until a key is pressed with the exception of the ENTER or DOWN key.
Label Default Description KEYPAD 1 Zero ENABLE = ON STRING = KZERO<13> Keypad strings are captured using the following format for all 5 keys: KEYPAD 2 G/N ENABLE = ON STRING = KGROSSNET<13> KEYPAD1.STRING = KEYPAD 3 Tare ENABLE = ON STRING = KTARE<13> KEYPAD 4 Units ENABLE = ON STRING = KUNITS<13> KEYPAD 5 Print ENABLE = ON STRING = KPRINT<13> KZERO is a string which can be up to 32 characters <13> is the ASCII for carriage return. Table 3-6. Keypress Parameter Settings 3.
3.8 Demand Print Displaying The indicator and the Laser LT remote display can be set up to do a demand print display for such applications as cattle weighing. This is useful if you want to show and keep the last weight of an animal. Using Auto-Learn, ensure HOLD WT is on and continuously push the print button on the indicator to learn a demand print display. 3.
|GR! Response: Where: | = Pipe character (0x7C) AA = Two byte address, ASCII digits (00-31) GR = Literal GR Data = 1 or 2 CR = Carriage return, (0x 0D) State = The state of the requested relay, possible responses: 1 = On 1 = Off 2 = On 2 = Off ! = Exclamation point character (0 x21) 3.9.4 Laser LT Query Display Command The query display command will return what is currently being displayed and is mainly intended for testing.
3.10 Configuration with Revolution Revolution is a user-friendly tool for configuring the Laser LT using your PC. Revolution can be used to program and configure the Laser LT. Revolution can be downloaded from the Rice Lake Weighing Systems web site at:www.ricelake.com/support/ software/firmware/Revolution Scale Software. Use the following steps to configure the Laser LT using Revolution. 1. Select Revolution from the start up menu. The following start up screen appears. Figure 3-12. Start up Screen 2.
Configuration menu found in Figure 3-15 Keypad menu found in Figure 3-16 Digital I/O menu found in Figure 3-15 3.10.3 Formatting Note Information must be uploaded prior to using the Formatting screen in Revolution. With Revolution running and the new file screen shown (from Figure 3-14), select Communications from the upper toolbar. Select Connect and then select upload configuration. Select the Formatting icon to access the general formatting screen shown in Figure 3-18.
If the cursor is placed before the first character after the start character, it will be LOC1. Each character after that is LOC2 through the end of the frame. If the character is L for the primary and it is at LOC10, then you need to put the cursor before the L and click SELECT for the primary token. Revolution will plug in the character and location. Continue with all known characters and download this new data and the LaserLT should now display a proper weight with the available tokens.
4.0 EDP Commands The Laser LT remote display can be controlled by a personal computer or a remote keyboard connected to the remote display. Control is provided by a set of EDP (Electronic Data Processing) commands that can simulate front panel key press functions, display and change setup parameters and perform reporting functions. EDP commands are able to view or change the parameters either in Run or Configuration mode. If used in the Run mode, the user must send the command SAVE.CFG when finished.
Command Default Value Description NET.LOC 0 This is the character location in the string format. A 0 (zero) indicates that the Laser LT will look for the character anywhere in the incoming data. The range is 0-63 PRI.CHAR 76 (L) PRI.LOC 0 SEC.CHAR 75 (K) SEC.LOC 0 MOTION.CHAR 77 (M) MOTION.LOC 0 OVR.CHAR 79 (O) Allows the user the select primary unit character This is the character location in the string format.
4.2 Parameter Setting Commands The following table describes EDP parameter setting commands with descriptions and ranges. Command Choices Description DAISY OFF PORT 1 PORT 2 PORT 3 PORT 4 This is the port that will echo the weight data to another remote display DIO1 OFF REDLED GRNLED ZERO TARE UNITS PRINT GRSNET Select which LED or front panel key function is controlled by this digital I/O point. Note: DIO1 and DIO2 could both be set to the same front panel key function.
Command Choices Description PORTS 1 THRU 4 BAUD = 9600 BITS = 8 NONE ECHO = ON SBITS = 1 STOP BIT KEYPAD 1 ENABLE = ON STRING = KZERO<13> Keypad strings are captured using the following format for all 5 keys: KEYPAD 2 ENABLE = ON STRING = KGROSSNET<13> KEYPAD1.STRING = KEYPAD 3 ENABLE = ON STRING = KTARE<13> KEYPAD 4 ENABLE = ON STRING = KUNITS<13> KEYPAD 5 ENABLE = ON STRING = KPRINT<13> KZERO is a string which can be up to 32 characters <13> is the ASCII for carriage return.
5.0 Options 5.1 Visor Installation An optional visor can be installed on the Laser LT display. Figure 5-1 shows the remote display with the optional visor installed. Figure 5-1. Laser LT Remote Display w/ Optional Visor Installed Mount the visor (PN 115138) on top of the remote display by opening the front cover, sliding the visor over the latch assembly and reclose the latches on the enclosure.
6.0 6.1 Appendix Error Messages The Laser LT remote display provides error messages. When an error occurs, the message is shown on the display. Message Cause/Remedy No communication with the ports and the device that it’s communicating with NO COM ABORT The Laser LT failed to Auto Learn. See Troubleshooting Section 6.2. Table 6-1. Error Messages 6.2 Troubleshooting Prior to troubleshooting, it is important to default the Laser LT to the default settings. See Section 2.3.
6.3 Updating the Laser LT If software needs to be updated for the Laser LT, the updater utility is available through Revolution. A flash update cable (PN 115968) must be used to connect the CPU board of the Laser LT to a port on your PC. Plug the flash update cable connector into the header TJ3 on the Laser LT CPU board and the other end into the PC. Figure 6-1. Flash Update Cable Plugin Location on Laser LT Follow on screen instructions to update the Laser LT.
6.4 Front Panel Display Characters Figure 6-3 shows the 7-segment LED character set used to display alphanumeric characters on the Laser LT front panel. & 2 ' 3 ( 4 ) 5 * 6 + 7 , 8 ! - 9 " . : # / ; $ 0 < % 1 = Figure 6-3.
6.5 Replacement Parts 6.5.1 UL Approved Replacement Parts 23 7 22 Figure 6-4. UL Approved Power Supply Parts Illustration Item No. Part No. Description 7 153811 Cable Assembly Power Supply to CPU 22 153600 Power Supply 12V 45Watt PLC-45-12 23 153808 AC Input Power Cord Assembly, GFCI Table 6-3.
14 4 9 22 21 13 18 25 See Ground Detail 24 11 17 11 16 12 20 19 23 9 9 15 Ground Detail 10 1 5 6 7 3 2 8 34 Laser LT Installation and Operation Manual
6.6 Replacement Parts Table 6-1 lists selected replacement parts for the Laser LT remote display. Item No. Part No.
6.
6.9 Specifications Display Six digit LED, 7-segment character, 1.
Laser LT Remote Display Limited Warranty Rice Lake Weighing Systems (RLWS) warrants that all RLWS equipment and systems properly installed by a Distributor or Original Equipment Manufacturer (OEM) will operate per written specifications as confirmed by the Distributor/OEM and accepted by RLWS. All systems and components are warranted against defects in materials and workmanship for two years.
230 W. Coleman St. t Rice Lake, WI 54868 t USA U.S. 800-472-6703 t Canada/Mexico 800-321-6703 t International 715-234-9171 t Europe +31 (0) 88 2349171 www.ricelake.com www.ricelake.mx www.ricelake.eu www.ricelake.co.in m.ricelake.
