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MACRO BATCH Quick Reference Guide

REV 1.50

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INDEX GENERAL SYSTEM SPECIFICATIONS ...................... ...........................................................................5

CALIBTRATION SETUP REFERENCE....................... ............................................................................6

HOW TO ENABLE THE MACRO BATCH FUNCTION ............ ...............................................................7

MACRO BATCH MODE – GROSS MODE ...................... ........................................................................8

MACRO BATCH MODE – TARE MODE ....................... ..........................................................................9

MACRO BATCH MODE – JOG MODE........................ ..........................................................................10

MACRO BATCH MODE – DISCRETE INGREDIENT MODE........ .........................................................11

HOW TO USE THE MACRO BATCH FUNCTION ............... .................................................................12

HOW TO SETUP A BATCH RECIPE INGREDIENT ............. .................................................................13

HOW TO USE THE MATERIAL REPORTS FUNCTION.......... .............................................................14

HOW TO PRINT MATERIAL REPORTS..................... ..........................................................................15

HOW TO SETUP A PRINTER FOR REPORTS PRINTING...................................................................16

HOW TO CONNECT THE IO INTERFACE ...........................................................................................17

HOW TO CONNECT THE IO INTERFACE USING SOLID STATE RELAYS ........................................18

LT350 KEYBOARD FUNCTIONS........................... ...............................................................................19

LT350 KEYBOARD FUNCTIONS........................... ...............................................................................20

SCALE DISPLAY INDICATORS ........................... ................................................................................21

LT350 HARDWARE INTERFACE DIAGRAM................... .....................................................................22

LT350 SCALE CONFIGURATION OPTIONS - STANDARD...... ...........................................................23

LT350 SCALE CONFIGURATION OPTIONS - SENSE LINES ... ..........................................................24

HOW TO TRIM A SUMMING BOX .......................... ..............................................................................25

HOW TO CALIBRATE A SCALE ........................... ...............................................................................26

SCALE LOAD CELL DIAGNOSTICS ........................ ............................................................................27

HOW TO PERFORM LOAD CELL ADJUSTMENTS ............... ..............................................................28

HOW TO RESET SYSTEM PARAMETERS................... ......................................................................29

HOW TO BACKUP & RESTORE THE SYSTEM DATABASE ....... .......................................................30

HOW TO SETUP SERIAL RS232 TO TRANSMIT WEIGHT DATA.. ......................................................31

HOW TO SETUP USB TO TRANSMIT WEIGHT DATA.......... ..............................................................32

HOW TO SETUP RS22/485 TO TRANSMIT WEIGHT DATA .... ..........................................................33

HOW TO SETUP TCP/IP TO TRANSMIT WEIGHT DATA - I... .............................................................34

HOW TO SETUP TCP/IP TO TRANSMIT WEIGHT DATA II... .............................................................35

HOW TO SETUP TCP/IP WIFI TO TRANSMIT WEIGHT DATA .. .........................................................36

HOW TO USE THE RS232 ASCII SERIAL PROTOCOL ........ ..............................................................37

HOW TO USE ASCII.NET PROTOCOL.................... ...........................................................................38

HOW TO USE THE 16 POINT DIGITAL IO EXPANDER CARD ... .........................................................39

APPENDIX A: STRING - LT350 TYPE I/II ............ ..............................................................................40

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GENERAL SYSTEM SPECIFICATIONS

Batch Recipe Size 100 Recipes

Batch Ingredients up to 5 ingredients with jog and free fall settings

Batch External Control Two Digital inputs for push button control of START RECIPE and PAUSE/RUN

Batch Modes Tare Mode, Gross Mode, Multiple Jog Mode and Discrete Mode

Batch Remote Control Network ASCII.NET Command Set via RS232,/RS485/USB/TCP

Batch Reports Material report log for up to 12 months plus internal formatted ticket reports

Calibration Method Calibration through software menu system

Resolution Internal 1 000 000 counts, Displayed 100 000 dd

Display Bright White on Blue ( Full Graphics with multiple fonts)

Sampling Rate 1-500Hz, software selectable

Span Stability 2.5ppm/ Celsius

Zero Stability 6nV/Celsius

Filtering Programmable response filtering

Firmware Upgrading In field Firmware upgrading without affecting calibration data serial or Ethernet

Unit Conversion Lbs/kg

Display Full Graphics LCD display (White on Blue)

Load Cells Supports up to 4 load cell channels with individual corrections

Scale Input Ranges 20mV & 5000mV (Supports 0-5V digital load cells)

Load Cell Excitation 5VDC,8x350,16x700 ohm in total

Serial Ports RS232/RS485 software selectable - optional

External IO 16 general Purpose IO controlled via the ASCII.NET protocol from any PC - optional

Ethernet Ethernet 10/100 with PoE (Power Over Ethernet) support – optional

Wi-Fi 802.11b wireless support – optional

Power 12-48VDC 300mA nominal (110~220 AC input for NEMA4)

Temperature Range -10ºC to +40ºC (14ºF to 104ºF)

Enclosure Material Stainless Steel Panel Mount (External Power Supply) or NEMA4 Aluminum Die-Cast

Class Class III/IIIL @10 000div

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CALIBTRATION SETUP REFERENCE

DEFAULT FACTORY PASSWORD: There are many parameters that can be accessed by pressing the [MENU] key and navigating to the parameter of interest using the up/down arrow keys. Protecting important settings from unauthorized tampering is a valuable feature and as such, most calibration and setup parameters are protected by a password. The password only needs to be

entered once and only after the F1 key was pressed to save settings during the last session.

Once the F1 key was pressed in calibration mode to save the new settings, calibration mode will be exited and to enter calibration mode again, the user needs to enter the password again. The factory password is [1234]. It is recommended that the user change this password to a unique 4 number combination in order to protect the integrity of the system scale calibration and settings using COMMAND[98] . For most commands the user only needs to enter calibration mode once by providing the

password where required. LEGAL FOR TRADE APPLICATIONS: Some parameters are protected by a password – which is a government requirement for applications that will use the scale for trading to the public by weight. Such applications require an audit trail history of parameter changes and settings. NON LEGAL FOR TRADE APPLICATIONS: Many industrial applications are strictly used for process control such as batching and monitoring weight. These types of implementations do not require legal for trade certification or inspection by government agencies.

IMPORTANT!!!

It is important to note that no settings are saved in

calibration mode until the user presses the F1 key

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HOW TO ENABLE THE MACRO BATCH FUNCTION

The Macro Batch function is enabled through COMMAND[69] The Macro Batch controller is a stand alone batch controller specifically designed for small concrete batching with cubic meter batch size selector plus free fall and jog control for each ingredient. MAIN FEATURES

• Supports up to 100 recipes with a maximum of 5 ingredients per recipe • Batch up to 5 ingredients into a combined scale weigh hopper -tare batch mode • Each ingredient can be set for weight and optional free fall and jog timer • Batch recovery function on power failure • Integrated weigh scale with full calibration parameter settings • Removable media card for system backups and disaster recovery • External digital Input for Batch Run Command • External digital Input for Batch Pause/Run • Materials data log for up to 12 months plus printable reports

BATCH MODES:

The Macro Batch Controller can be configured to operate in 1 of 4 batch modes. These modes allow

• Gross Mode - Combined individual ingredient weighing, • Tare Mode - Combined ingredient weighing • Discrete Gross Mode - Single individual ingredient weighing • Jog Mode - Single ingredient with multiple Jog gate control

Each mode will automatically process the selected recipe ingredients and will open the scale gate after each batch has completed. Each mode also includes a mode to recover from incomplete batch interruptions.

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MACRO BATCH MODE – GROSS MODE

COMMAND 69 Macro Batch Mode is used to select the active batch mode. Gross Batch mode measures each none-zero ingredient from 1-5 individually and opening the scale discharge gate after each ingredient target set point. The demonstration below assumes a total of 3 ingredients

INGREDIENT 1:

INGREDIENT 2:

INGREDIENT 3:

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MACRO BATCH MODE – TARE MODE

COMMAND 69 Macro Batch Mode is used to select the active batch mode. This build-in batch mode weigh each ingredient in sequence from 1 up to 5 and only discharge the total once the batch is completed. The demonstration below assumes a total of 3 ingredients

INGREDIENT 1:

INGREDIENT 2:

INGREDIENT 3:

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MACRO BATCH MODE – JOG MODE

COMMAND 69 Macro Batch Mode is used to select the active batch mode.

This build-in batch mode is equivalent to a recipe with only one ingredient enabled while all other ingredients are treated as jog set points using the same database through a simple transposition. When the ingredient is instructed to open, all jog gates will automatically open as well.

The demonstration below assumes a total of 3 ingredients

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MACRO BATCH MODE – DISCRETE INGREDIENT MODE

COMMAND 69 Macro Batch Mode is used to select the active batch mode.

This build-in batch mode weigh a single user selected ingredient followed by a scale discharge to completed the sequence.

The demonstration below assumes ingredients 3 as an example

INGREDIENT 3:

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HOW TO USE THE MACRO BATCH FUNCTION

The batch function is activated by pressing START and terminated by pressing STOP repeatedly.

ZERO THE SCALE

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HOW TO SETUP A BATCH RECIPE INGREDIENT

By pressing F2 the user can setup the batch recipe ingredient weights, free fall and jog timers. All recipes with the same bin number shares the same global jog and free fall values. All settings are automatically saved permanently. Do not remove power while editing recipes – as this may corrupt the database.

RECIPE[n]:

RECIPE SIZE Multiplication factor in one 10th for base recipe normally expressed in cubic meters. This value is global to all recipes

ZERO WINDOW Scale empty tolerance weight (default 10). This value is global to all recipes

RECIPE INGREDIENT[n]:

WEIGHT The ingredient weight, subject to the recipe size. All ingredients not used should have their set points set to zero.

IO POINT

The IO point assigned for the ingredient – IO points are fixed. IO point [0] always used for the scale gate control. IO points [1,2,3,4,5] may be used as ingredient gate controls. The batch sequence is always from 1-5.

JOG TIME If zero, jog timer disabled, else the jog timer will start its jog interval based on the jog time as soon as the free fall level is reached (weight – free fall). The jogging will continue until the weight set point is reached. The jog time interval is entered in 1/10th of a second. This value is global to all ingredients with same bin number

FREE FALL Free fall will determine the weight at which the scale will close prior to the target weight being reached. That is the weight set point minus free fall. If jog timer is non-zero the jog timer will activate as soon as the free fall level is reached (weight – free fall ). The jogging will continue until the weight set point is reached. This value is global to all ingredients with same bin number

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HOW TO USE THE MATERIAL REPORTS FUNCTION

The material reports function is very useful to track productivity and material usage for up to 12 months. For best results, the batch controller should be permanently powered up, free from power failures and with the batch controller running to completion. The material reports data log automatically calculates and stores the material totals used for up to 12 months for each ingredient. The batch controller has a monthly log as well as a grand total material totals log. The monthly total for each ingredient is reset to zero at the beginning of each month and increase as batches are run providing the user with a bar graph outlining the material use per month for the past 12 months. The grand total calculates and stores the lifetime use of materials and can be viewed and printed by the user pressing the MENU key to access the report. For the material log to work correctly, the date and time must first be setup correctly. To do this, the batch function must be exited by pressing the STOP key repeatedly until the user is prompted to exit batch mode. Once the date and time is setup correctly the user can restart the batch function by pressing the START key.

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Press the MENU key to access the material log function to display material use for the past 12 months. Use left and right keys to select month. Use the ENTER key to view material totals for selected month or press F4 to print the totals to a serial printer. Press CLEAR to exit the monthly data view function.

The user can independently clear each monthly total or the grand materials total by pressing the MENU key to select the action required from the BATCH MATERIALS REPORT menu. The user will be required to enter the system password - default [1234] In order to print the reports the user should consult the section on how to setup a serial printer in this manual. The user should change the protocol on COM1 to TICKET PRINTING and set the baud rate to match that of the serial printer. Most reports viewed on screen can be printed using the F4 key. As part of the batch audit function, the batch process will automatically print the batch ingredient weights and the total of the batch draft at the end of each batch if the serial port is setup correctly as outlined above.

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HOW TO PRINT MATERIAL REPORTS

The material data log reports can be viewed by pressing the MENU key while the batch system is in the idle state. The global material totals or the monthly materials used can be viewed and printed. The batch controller can also print the batch process in real time showing the real weight for each ingredient as well as the sum total of the batch. The batch and material reports are printed on COM1 that has its protocol set to TICKET PRINTING. The log data can be printed to any RS232 serial printer that supports a minimum column width of 32 characters or more. For each material report displayed, the PRINT or F4 key can be pressed to request a report to be printed while in the BATCH MATERIAL REPORTS menu.

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HOW TO SETUP A PRINTER FOR REPORTS PRINTING

The batch and material reports are printed on COM1 that has its protocol set to TICKET PRINTING. The log data can be printed to any RS232 serial printer that supports a minimum column width of 32 characters or more. For each material report displayed, the PRINT or F4 key can be pressed to request a print report while in the BATCH MATERIAL REPORTS menu. In addition, the batch process will automatically print the batch report at the end of each batch sequence. The LT350 does not support signals other than RX, TX and Ground. Handshake such as CTS/RTS is not supported.

To setup the COM1 port do following:

• COMMAND[34] – check that the serial port is setup for RS232 mode. • COMMAND[35] – Set serial baud rate 600,1200,4800,9600,14400,38400,57600 or 230400 • COMMAND[37] – Set the protocol to TICKET PRINTING (13) • To save the settings, press the F1 key. • Press START to begin batching • Press MENU to view and print reports • Press CLEAR to exit reports

NOTE: Many PCs today only support RS232 via USB which requires a USB to SERIAL cable

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HOW TO CONNECT THE IO INTERFACE

Care should be taken to never connect the logic +5V output to any other supply rail or ground. The Batch controller always batch in the same sequence from ingredient (1) on IO(1) through to ingredient(5) on IO(5). Each Output IO point can drive relay coil currents up to 500mA. COMMAND 70 for the Batch BIN count can be used to specify the maximum number of ingredient bins in the system. This will ensure that the system ignores batch recipe ingredients above the number of batch bin count and avoid a situation were the system seems to get stuck. All recipe ingredients not to be used should have their weight set points set to zero.

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HOW TO CONNECT THE IO INTERFACE USING SOLID STATE RELAYS

Care should be taken to never connect the logic +5V output to any other supply rail or ground. The Batch controller always batch in the same sequence from ingredient (1) on IO(1) through to ingredient(5) on IO(5). Each Output IO point can drive relay coil currents up to 500mA. COMMAND 70 for the Batch BIN count can be used to specify the maximum number of ingredient bins in the system. This will ensure that the system ignores batch recipe ingredients above the number of batch bin count and avoid a situation were the system seems to get stuck. All recipe ingredients not to be used should have their weight set points set to zero.

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LT350 KEYBOARD FUNCTIONS

SF special function key used to switch between alphanumeric key entry. Pressing this key will toggle between lower and upper case text input where applicable. If held down for more than 5s power will be removed.

F1 Macro Batch Select Recipe

F2 Macro Batch Edit Recipe

F3 Macro Batch Size

F4 Macro Batch Run Batch

UNITS switch between lb and kg. With macros running units cannot be changed. Units can also be locked at startup.

ZERO scale can be done with no motion and with the weight within the user programmable zero range

TARE scale can be done with a positive weight and no motion present on the scale

GROSS or NET weight display based on a tare entry

POWER ON feature is initially disabled.

MENU key is the main parameter navigation key. Once selected the user can use the up/down keys to navigate through all the parameters followed by an ENTER key and possibly a password.

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LT350 KEYBOARD FUNCTIONS

ENTER key will execute last command. Use the menu navigation keys to select a parameter followed by the ENTER key

CLEAR key can be used to clear entry field or exit the menu mode.

Menu navigation key (single line scroll) and numeric up dial.

Menu navigation key (single line scroll) and numeric down dial.

Menu navigation key or speed scroll – up.

Menu navigation key or speed scroll – down.

Menu navigation key set - used to select a menu item and numeric dialing.

Numeric entry. The secondary function followed by ENTER will display status information on load cell 1.

Numeric entry. The secondary function followed by ENTER will display status information on load cell 2.

Numeric entry. The secondary function followed by ENTER will display status information on load cell 3.

Numeric entry. The secondary function followed by ENTER will display status information on load cell 4.

Numeric entry. If this key is followed by ENTER, peak weight detection will be enabled and the peak weight value will be recorded and displayed.

Numeric entry.

Numeric entry.

Numeric entry

Numeric entry.

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SCALE DISPLAY INDICATORS

Scale network ID. If Modbus IO control is enabled this will be used to communicate with the unit. See COMMAND[33]

Macro runs state. If the macro system is enabled, the START and STOP keys will control the run state of the macro system.

Indicates remote IO control is enabled

Indicates that the special function key SF was pressed to select either lower or upper case characters for user input where applicable.

User command entries, enter command number or navigate using the MENU system.

Indicate Weight stabilized

Indicate weigh mode NET or GROSS. A tare weight must be set.

Indicate scale at zero weight - center of zero.

Indicate current units selected - either kilograms or pounds

This icon indicates that the user changed calibration parameters and to save those parameters the user should end calibration by pressing the F1 key.

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LT350 HARDWARE INTERFACE DIAGRAM

Power supply input. The indicator accepts a dc voltage between[16-48]Volts. If PoE is used, do not connect power here. Nominal power input should be 24Vdc @ 200mA

The indicator supports three types of network configurations. Ethernet 10/100 base, Wi-Fi 802.11b wireless or USB. The Ethernet 10/100 also supports PoE (power over Ethernet) which requires a PoE compliant power supply.

The sense line mode is a special 6 line load cell configuration. This configuration uses CH-1 as the sense lines and CH-2 as the load cell inputs. This configuration is typically used to improve signal quality over long cable hauls. Command[93] should be used to enable sense line activation.

The indicator is a single scale multiple load cell system that supports between [1-4] load cells using command[10]

The primary serial port can be configured as RS232 or RS422 and supports serial strings, printers and ModbusRTU

The auxiliary serial port can be configured as RS232 or RS422.

Auxiliary IO connector

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LT350 SCALE CONFIGURATION OPTIONS - STANDARD The LT350 is a single scale indicator that supports up to 4 load cells. The number of load cells allocated with COMMAND[10] depends on the type of scale used. A typical floor scale of 2x2 might have 1 load cell, while a floor scale of 4x4 might have 4 load cells. Sometimes a hopper bin will have 3 load cells and in some cases 4 load cells depending on the scale structure. Animal scales might have 2 load cells per scale. Load cells should be placed incrementally clock or anti-clockwise in cases where more than 2 load cells are used as outlined below.

This configuration shows a single load cell scale configuration. Applications might include:

� Check weighing � Small floor scale � Small hopper single load cell scale

This configuration shows a 2 load cell scale configuration. Applications might include:

� Animal scale � Rail scale

This configuration shows a 3 load cell scale configuration. Applications might include:

� Large hopper scales

This configuration shows a 4 load cell scale configuration. Applications might include:

� Large floor scale � Large hopper � Medium truck vehicle scale

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LT350 SCALE CONFIGURATION OPTIONS - SENSE LINES If the sense line mode is used COMMAND[93] , the CH1 becomes the sense line input while CH2 becomes the scale load cell input, while CH3 and CH4 are not used if sense lines are enabled. This configuration is typically used for single cell applications in an electrical noisy environment, or for long cable drops to minimize signal degradation. The user can also place a summing board at the end of the cable to facilitate a multiple load cell configuration.

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HOW TO TRIM A SUMMING BOX

The summing box is an optional way of connecting multiple load cells together. Trimming is a process of equalizing the output from multiple individual load cells, or from pairs of cells if using section trim format. It is preferred to use the sense line configuration as described above when using summing junction boxes. COMMAND[93] must be used to enable the sense line mode. When all errors except cell mismatch and cable extensions or reductions have been corrected, continue with the trimming procedures as follows:

1. Set all potentiometers fully counter-clockwise to give maximum signal output from all cells. 2. Zero the indicator and place calibrated test weights over each load cell in turn (or over each

section) without allowing the weights to overhang the sides. The amount of test weights used depends on the scale configurations; for specific recommendations, refer to Handbook 44 Field Manual. It is recommended to use a weight of at least 25% of the scale capacity.

3. Record the value each time weight is placed on the scale and allow the scale to return to zero to check the friction on other mechanical problems. Select the load cell or the section which has the lowest value as your reference point – this cell or section will not be trimmed.

4. Now replace the same test load over each cell or section and trim each with its potentiometer down to the reference level cell or section. As corner corrections are somewhat interactive, check all cells or sections again for repeatability.

5. Tighten all wiring connections and plugs. Pull excess cable out of the enclosure and tighten cord grip assemblies to make it watertight.

6. Connect thick copper rod on outside of metal enclosure to earth ground of the scale chassis for a lightning bypass.

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HOW TO CALIBRATE A SCALE

This command sequence assumes that all load cells are connected either through individual channels or by using the sense line configuration with the possibility of a summing box. You will have to enter the access password for these parameters. Press MENU to access command menu.

� Connect indicator to a stable power source. Do not share cable trays with electric motors and

switch gear. Have proper cable shielding in place connected to earth ground at the indicator. � Connect all load cells to the indicator. Do not connect anything to load cell channels not used.

Always start with load cell channel 1. Do not skip a channel. � COMMAND[10] – allocate the amount of load cells used in this application. � COMMAND[11] – select analog input range for type of load cell used. Most analog load cells use

the 20mV range. Digital load cells sometimes use the 5V input range. � COMMAND[12] – calibration units can be either lb or kg and should be the same as the test

weights used. After calibration is finished, the boot up units used can be selected. � COMMAND[13] – Graduation size is the minimum increment displayed by the instrument.

Rounded up or down to the nearest multiple of the selected graduation. � COMMAND[14] – Decimal point selects the fractional sensitivity of the weigh units, whether it

will be a 10th, 100th or a 1000th of a unit, where units might be lb or kg. � COMMAND [15] – scale capacity is the projected maximum working range of the scale weight.

This should not exceed the physical limitations of the structure. � COMMAND[16] – this is the weight allowed above scale capacity before a scale over range will

be displayed. If zero, scale over range will be at scale capacity. � COMMAND[17] – dead load scale or zero scale. Before a scale can be dead loaded, all weights

must be removed from the scale. � COMMAND[18] – to span the scale to the calibrated weights currently on the scale. In order to

do this, calibrated weights need to be placed on the scale of at least 25% of the scale capacity. � COMMAND[19] – Optional. If this is a multi load cell scale, this interactive command allows the

user to tweak each load cell to within a tolerable range. Not required for single load cell installations. A correction factor is then applied to each load cell.

� COMMAND[20] – Optional. Zero range. This allows the maximum weight that can be zeroed off when there is no weight on the scale. Default is 2% of scale capacity.

� To save calibration settings, press the F1 key. Additional parameters related to ZERO and TARE settings are optional and should be examined if required.

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SCALE LOAD CELL DIAGNOSTICS

Use the [MENU] key and up/down keys to navigate to the command or simply type it in as follows:

EXAMPLE:

Press these keys to navigate through the load cell status screens

An alternative to select load cell status screens

LOAD CELL STATUS INFORMATION Cell State : Runtime diagnostic state of load cell

PASS - The load cell , if allocated should be in the [PASS] state

UNUSED - If a load cell is not allocated using parameter [10] it should show [UNUSED]

FAIL - If a fault is detected with the load cell it will indicate [FAIL]

Raw Counts:

Raw counts pertains to the currently selected load cell and is the value before converted to a weight quantity. Raw analog to digital counts can be between [0 – 1000 000].

Correction:

Correction is applied in a scale that has more than one load cell. Due to scale structural factors it is sometimes required to apply corrections to certain load cells by using the correction COMMAND [19]. The factory default is [1.000]

Weight:

Display the current weight on the scale

Gravity Cnst:

If this scale is calibrated and used in different geographic zones – the gravitational constant needs to be adjusted for the particular geographical zone. If this scale is static and calibration is performed on site, this parameter can stay at the factory default [9.81000].

Cell/Scale:

The LT350 indicator is a single scale indicator that can support a scale with up to 4 load cells. The scale allocation COMMAND [10] is used to allocate the number of load cells per scale [1-4]

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HOW TO PERFORM LOAD CELL ADJUSTMENTS

This command makes small adjustments to the span factors of each load cell. For example, we have a 4 load cell floor scale that was calibrated to 10000 by placing a weight in the center of the scale. The user then observes that by placing the same weight on each corner of the scale, and notice that the weight reading is off by a small margin. To correct for this small margins we use COMMAND[19].

� The user executes COMMAND[19] . � The user then selects the cell using keys [1, 2, 3 or 4] to select the load cells to be adjusted. � The user then places the test weight on the above selected corner load cell. � The user adjusts the weight using the F3 & F4 function keys until it reads the same as the test

weight on the scale. � The user then moves to the next cell using keys[1,2,3 or 4] � If this is not the last load cell corner repeat by going to step 3. � The final step is to press [MENU] to save or abort the changes made.

This command is only of use in applications with more than one load cell per scale. Place the test weight as close as possible to the corner cell that is currently selected on the display. Precise placement of the test weight is however not important.

EXAMPLE:

To select the corner/ load cell to be adjusted

These keys select the coarseness of the adjustments

These keys are used to adjust the weight value for the scale load cell channel in question

Press the this key to exit without changes

The [MENU] key provides the following options:

� Save and exit � Abort adjustments � Reset current load cell channel � Reset all load cell channels � Return to adjustment menu

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HOW TO RESET SYSTEM PARAMETERS

COMMAND [95]

This command will reset all communications related parameters to the factory default

values. This parameter will clear all existing communications settings except for the

scale calibration parameters that will not be affected.

COMMAND [96]

This command will reset all scale calibration settings to the factory default values. This

parameter will clear all existing weigh calibration settings except for the

communications parameters that will not be affected.

If a condition arise where settings simply does not work as expected the

user can use these commands to reset groups of parameters to know

values. It is advised to first save the settings pressing the [F1] key before

attempting the new settings.

Use the [MENU] key and up/down keys to navigate to the command or simply type it in

as follows:

In an extreme case where a corrupted system database might cause a

blank screen at boot up, the user can force the system to adopt factory

parameter values by removing the power, hold down the 8 KEY and while

holding the key, apply power. The key should be held down for at least 5

seconds.

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HOW TO BACKUP & RESTORE THE SYSTEM DATABASE

COMMAND [90]

Backing up the system data of the indicator is a very powerful feature of the LT350. It

takes a lot of time to calibrate and setup any industrial instrument. If that instrument

malfunctions the whole setup process needs to be repeated. The LT350 allows the user

to backup all system data to a MMC memory card and can store it offsite in a safe

place. If the system fails, a new indicator can be inserted and a complete restore of all

system parameters can be performed saving many hours of setup time.

IMPORTANT!

The System maintenance use the MMC memory card and will overwrite

any other data on the card. This card use a custom file format and is not

FAT file compatible and can only be transferred from unit to unit.

SYSTEM MAINTENACE MENU

Backup All to

Card: This command will backup all configurations of the LT350 indicator. With this backup the

user can duplicate a new system exactly using the [Restore All] command.

Restore All Data: This command will restore a previously valid backup. This will overwrite ALL data on the

indicator – be careful not to restore an empty data card to the systems since this will

erase any valid data on the indicator and will require a system reset.

Restore

Calibration: Only data related to the calibration and setup of the scale will be restored

Restore Batch

Dbase: Only the Batch recipe data will be restored

Reset Batch

Dbase: This command will clear all recipe data to factory defaults. All batch data will be lost.

Erase System

Data: This will destroy your indicator setup and you will be forced to start the system setup

from scratch. This command is preserved for problematic field upgrades only.

Please note not all restore functions are applicable to all versions of the firmware and should be ignored as such where it applies.

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HOW TO SETUP SERIAL RS232 TO TRANSMIT WEIGHT DATA

To transmit a RS232 ASCII string containing weight information on a serial port do following:

• COMMAND[34] – check that the serial port is setup for RS232 mode. • COMMAND[35] – serial baud rate 600,1200,4800,9600,14400,38400,57600 or 230400 • COMMAND[37] – protocols is commonly predefined ASCII strings. The LT350 type I/II format

includes basic weight information plus IO and batch related data. The user can also print tickets by selecting the TICKET PRINTING protocol. The batch controller has internal preformatted tickets. If the TICKET PRINTING protocol is active, the batch process will automatically print the batch report at the end of each batch sequence.

• COMMAND[39] – This command dictates whether the string is transmitted automatically or polled via an ASCII command set - please see the LT350 Series Technical manual for more information on the ASCII command set.

Windows HyperTerminal can be used to capture serial data strings at the same baud rate COM1 can also be used to perform field upgrades of the firmware – the default baud rate for field upgrades using the COM1 is 57600 baud. To initiate field upgrade mode, remove power, hold the SF key down and apply power while holding the SF key down. The LTUPGRADE.EXE program should then be used to download the firmware binaries.

NOTE: Many PCs today only support RS232 via USB which requires a USB to SERIAL cable

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HOW TO SETUP USB TO TRANSMIT WEIGHT DATA

This setup assumes that a USB port is installed on the LT350. The USB cable can also be the power source to power the LT350. The USB drivers are available on the accompanied CD to support Virtual COM ports on Windows platforms under the USB directory. To transmit ASCII strings containing weight information on the USB port of the LT350 do following:

COMMAND[46] – Submenu for USB speed and protocol setup

USB PARAMETERS

Data Rate: Supported baud rates: 4800, 9600, 14400, 28800, 38400, 57600 or 230400

Protocol Mode:

Protocol [1-8] is commonly predefined ASCII strings. The LT350 type I/II format includes basic weight information plus IO and batch related data. The user can also print tickets by selecting the TICKET PRINTING protocol. The batch controller has internal preformatted tickets. If the TICKET PRINTING protocol is active, the batch process will automatically print the batch report at the end of each batch sequence.

String Mode: This command dictates whether the string is transmitted automatically or polled via an ASCII command set - please see the LT350 Series Technical manual for more information on the ASCII command set.

The USB port can also be used to perform field upgrades of the firmware – the default baud rate for field upgrades using the USB port is 230400 baud. To initiate field upgrade mode, remove power, hold the SF key down and apply power while holding the SF key down. The LTUPGRADE.EXE program should then be used to download the firmware binaries.

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HOW TO SETUP RS22/485 TO TRANSMIT WEIGHT DATA

To change between RS232 and RS485 mode, the user must first unplug the COM1 cable. This configuration allows for long distance transmission over 100 meters. Unplug serial port, change to RS485 and then do the correct wire setup as outlined below before re-connecting:

• COMMAND[34] – Disconnect serial port connector and then set COM1 for RS485 mode. Port may get damaged if a cable is left plugged in that is not an RS485 type.

• COMMAND[35] – serial baud rate 600,1200,4800,9600,14400,38400,57600 or 230400 • COMMAND[37] – Protocol [1-8] is commonly predefined ASCII strings. The LT350 type I/II

format includes basic weight information plus IO and batch related data. The user can also print tickets by selecting the TICKET PRINTING protocol. The batch controller has internal preformatted tickets. If the TICKET PRINTING protocol is active, the batch process will automatically print the batch report at the end of each batch sequence.

• COMMAND[39] – This command dictates whether the string is transmitted automatically or polled via a ASCII command set - please see the LT350 Series Technical manual for more information on the ASCII command set.

Windows HyperTerminal can be used to capture serial data strings at the same baud rate

NOTE: A RS232 to RS422 converter is required for the computer

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HOW TO SETUP TCP/IP TO TRANSMIT WEIGHT DATA - I

This setup assumes that a TCP/IP network port is installed on the LT350. The CAT5 network cable can also be the power source to power the LT350 – see PoE:

COMMAND[47] – Submenu for internet setup

INTERNET NETWORK PARAMETERS

IP address: Sets the device IP address when DHCP is off. Factory default is [192.168.1.200] This address needs to be obtained from the network administrator.

Subnet Mask: Sets the device subnet mask address when DHCP is off. Factory default is [255.255.255.000] This address needs to be obtained from the network administrator.

Default Gateway:

Sets the default gateway address. Factory default is [192.168.1.1] This address needs to be obtained from the network administrator.

DHCP Mode:

If a DHCP server is available on you network you can have an IP address allocated by the server – try not to use DHCP where possible. You should try to obtain an extended lease on the IP address from the network administrator – typically a real life person.

Protocol Mode: Protocol [1-8] is commonly predefined ASCII strings. The LT350 type I/II format includes basic weight information plus IO and batch related data.

String Poll Mode:

This command dictates whether the string is transmitted automatically or polled via an ASCII command set - please see the LT350 Series Technical manual for more information on the ASCII command set.

Wireless SSID: You should set this SSID to the same as your wireless router SSID. The factory SSID is:[ Connect ]

Node ID:

The node ID [1-100] will be set to the value displayed on the display screen e.g. SCALE 100. If you use the discovery software tool to search for network enabled connected nodes on the internet, the node ID will be used to identify your device. This is particularly important if you will be using DHCP.

Windows HyperTerminal can be used by selecting WinSock to capture the data strings by specifying the IP address at Port 502 (continued on next page)

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HOW TO SETUP TCP/IP TO TRANSMIT WEIGHT DATA II

It is highly recommended to use a separate intelligent Ethernet Switching Router that learns and only forwards data between the two parties that communicate, instead of broadcasting it all across the entire network, slowing everything down – do not use a simple repeating hub. To setup a LT350 indicator using TCP/IP over CAT5 cable and an Ethernet router, using COMMAND[47] Submenu for internet setup.

• Get a static IP address for your LT350 and enter it by selecting IP address in the sub menu in

the form of [196.168.200]. • Get the Network mask for the network you connecting to – enter it at the sub menu, Network

Mask. Most networks use the default of [255.255.255.000]. This information is readily available on any computer connected to the network – simply copy this information. This information is also available in the network router setup pages.

• Get the Default Gateway information and enter it at the sub menu, Default Gateway. This information should be the same as any computer connected to the network or on the network router.

• DHCP for industrial purposes should be avoided. If the network administrator does not allow static IP addresses for some reason. Try to negotiate a “long lease” for the DHCP assignment.

• Use the Windows LTDISCOVER.EXE program that comes with the LT350 CD to search for active LT350 indicators on the network and their assigned IP addresses.

Alternatively, connect to the indicator through an Ethernet Switch using a standard CAT5 cable (never connect the indicator direct to the PC) web interface to setup the network address information. • The network setup interface requires a login and password. The default login and password is as

follows: LOGIN = [root] and PASSWORD = [dbps] • You will then be directed to the TCP/IP address settings. Fill in the IP address, Network Mask

and Default Gateway. • Save the settings and request the LT350 to reboot with new settings – may take a long time, up

to 20 seconds for reboot. • The green LED (furthest from the display) must flash during boot up and then remain off during

normal operation. • The yellow LED (closest to the display) should stay on as soon as a CAT5 cable is connected. It

should flicker during data transmissions. • Use the Windows LTDISCOVER.EXE program that comes with the LT350 CD to search for

active LT350 indicators on the network and their assigned IP addresses.

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HOW TO SETUP TCP/IP WiFi TO TRANSMIT WEIGHT DATA

To setup a LT350 indicator using wireless WiFi802.11b, using a Ethernet wireless router or access point, using COMMAND[47] Submenu for internet setup:

• Get a static IP address for your LT350 and enter it by selecting IP address in the sub menu in

the form of [196.168.200] • Get the Network mask for the network you are connecting to – enter it at the sub menu, Network

Mask. Most networks use the default of [255.255.255.000]. This information is readily available on any computer connected to the network – simply copy this information. This information is also available in the network router setup pages.

• Get the Default Gateway information and enter it at the sub menu, Default Gateway. This information should be the same for any computer connected to the network or on the network router.

• Setup the SSID to be the same name as the access point or wireless router/switch. • It is best to first get the basics working before enabling advanced WiFi encryption. Once you can

communicate with the LT350 across a network. Use the Web interface described below to setup encryption if you need it.

• Use the Windows LTDISCOVER.EXE program that comes with the LT350 CD to search for active LT350 indicators on the network and their assigned IP addresses.

Alternatively, temporarily change the SSID of the r outer to the factory default SSID of the LT350, which is [Connect]. You should now be able to find the indicator using the LTDISCOVER.EXE program on the CD. Also temporarily disable encryption on the router until you have the basic communications working. Then use the Web interface to setup the network address information. • The network setup interface requires a login and password. The default login and password is as

follows: LOGIN = [root] and PASSWORD = [dbps] • You will then be directed to the TCP/IP address settings. Fill in the IP address, Network Mask,

Default Gateway, SSID and enable encryption if needed. The SSID should be the same as the wireless router/switch. Connect the antenna, with a clear line of sight and positioned away from metal structures wherever possible.

• Save the settings and request the LT350 to reboot with new settings – may take up to 10 seconds for reboot.

• The green LED (furthest from the display) must flash during boot up and then remain off during normal operation.

• The yellow LED (closest to the display) should stay on as soon as a CAT5 cable is connected. It should flicker during data transmissions.

• Use the Windows LTDISCOVER.EXE program that comes with the LT350 CD to search for active LT350 indicators on the network and their assigned IP addresses.

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HOW TO USE THE RS232 ASCII SERIAL PROTOCOL This is a very simple ASCII poll based string control mode. The following commands will cause the indicator to process the command and send a string. This mode supports most of the string protocols – works with all standard serial strings (default is LT350 Type I/II) This protocol is activated using COMMAND[39] and works with RS232, RS485, USB and Ethernet wired or wireless.

ASCII CMD Comment ? Send current displayed weigh string to serial port K Change units to KG and send weigh string L Change units to LB and send weigh string T Tare the current weight on the scale and send string N Display net weigh mode and send string G Display gross weight and send string Z Zero scale (must be with in zero range) C Clear Tare entry

Transmit: [CMD]

Response: [<][P][WWWWWWW][U][C][M][S][D][E][I][I] [I][I][B][B][>][ CS1][CS2]

The LT350 (Type I/II) string is appended with a simple checksum [CS1][CS2] at the end of the string, which is the sum of all the bytes followed by a byte inversion and expressed as a hex number. The checksum can be ignored, however if the data is corrupted the receiving computer might process erroneous information. < 5 0 0 I 0 0 F F > Checksum Example: <500I00FF> ⇒ SUM( 0x3C+0x35+0x30+0x30+0x49+0x30+0x30+0x46+0x46+0x3E) = 0x44 ⇒ INVERT(0x44) = 0xBB ⇒ C1 = 1 (0x42) : C2 = B (0x42) Same procedure applies to both transmitted and received string checksum calculations. The checksum fields can be replaced by two zero characters [0][0 ] in order to ignore checksum validations. To configure the system for the ASCII serial RS232 mode follow these steps:

• COMMAND[34] - RS232 mode. Change COM1 to RS232. Cable must be unplugged before a switch is done. The connect 2 wire RS232 cable must first be configured.

• COMMAND[35] – To set the baud rate - must be the same as the computer. • COMMAND[37] – (08) Protocol must be set to LT350 TYPE I/II. • COMMAND[38] – Flow control must be off. • COMMAND[39] - (03) Poll Mode must be set to ASCII.

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HOW TO USE ASCII.NET PROTOCOL This protocol can be used in RS485, RS232, USB or Ethernet mode This allows remote external IO and batch control of many indicators by including the node ID [1-99] in a simple ASCII command formatted directly from your own program using RS232 or Windows TCP/IP Sockets on port 502. 0 1 2 3 4 5 6 7 8 9 10 11

[<][ID][ID][CH][CMD][PRM1][PRM2][PRM3 ][PRM4][>][C1][C2] - 12 characters .

ID Comment Example 1-99 Target network node address between 1-99 <880?0000>

CH Comment Example 1-4 Scale channel <994?0000>

CMD Comment Example ? Send current displayed weigh string <990?0000> K Change units to KG and send weigh string <990K0000> L Change units to LB and send weigh string <990L0000> T Tare the current weight on the scale <990T0000> N Display net weigh mode and send string <990N0000> G Display gross weight and send string <990G0000> Z Zero scale (must be with in zero range) <990Z0000> C Clear Tare entry <990C0000> I Set external IO port e.g. <990IFFFF> for all ’on’ or <990I0000> for all‘off’ <990I00FF> R Run the Macro Script or Batch process <990R0000> H Halt the Macro Script or Batch process <990H0000> P Print a ticket e.g. print ticket number 10 <990P0010> B Control a batch process e.g. reset batch process and close all gates <990B0000> B Control a batch process e.g. open ingredient gate #1 IO point[1] <990B0001> B Control a batch process e.g. open ingredient gate #2 IO point[2] <990B0002> B Control a batch process e.g. open ingredient gate #3 IO point[3] <990B0003> B Control a batch process e.g. open ingredient gate #4 IO point[4] <990B0004> B Control a batch process e.g. open ingredient gate #5 IO point[5] <990B0005> B Control a batch process e.g. open ingredient gate #6 IO point[6] <990B0006> B Control a batch process e.g. open ingredient gate #7 IO point[7] <990B0007> B Control a batch process e.g. open scale gate IO point[0] <990B0008> E Extended Batch Command Set - see extended ASCII.NET command set

PRM Comment Example

1-4 Parameter entry with PRM4 as the least significant byte. <990B1234>

0 1 2 3 4 5 6 7 8 9 10 11

Transmit : [<][ID][ID][CH][CMD][PR M1][PRM2][PRM3][PRM4][>][C1][C2]

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

Response: [<][P][WWWWWWW][U][CH][M] [S][D][E][I][I][I][I][B][B][>][C1][C2] The LT350 (Type I) string is appended with a simple checksum [C1][C2] at the end of the string, which is the sum of all the bytes followed by a byte inversion and expressed as a hex number. The checksum can be ignored, however if the data is corrupted the receiving computer might process erroneous information. < 5 0 0 I 0 0 F F > Checksum Example: <500I00FF> ⇒ SUM( 0x3C+0x35+0x30+0x30+0x49+0x30+0x30+0x46+0x46+0x3E) = 0x44 ⇒ INVERT(0x44) = 0xBB ⇒ C1 = 1 (0x42) : C2 = B (0x42) Same procedure applies to both transmitted and received string checksum calculations. The checksum fields can be replaced by two zero characters [0][0] in order to ignore checksum validations.

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HOW TO USE THE 16 POINT DIGITAL IO EXPANDER CARD

The IO EXPANDER card is controlled remotely by the user using the ASCII.NET protocol. The external IO is completely separate from the internal IO associated with the batch control functions. The LT350-B1 allow for an external 16 point IO expansion using the IO EXPANDER card that works with Grayhill and Opto22 cards that support the SYSTEM 50 header for both 8 and 16 bit cards. Alternatively the user can control solid state relays via the LT3DN din rail terminal board. The IO expander interface communicates via a custom interface replacing COM2. To configure the IO points the user must access COMMAND [71] IO Port Setup Ext. The user can control the IO using the RUN/STOP switch on the IO EXPANDER card. The IO EXPANDER card also has a timeout function that can be enabled to reset all IO outputs if communications with the LT350 is lost. The LT350 also allow the user to set a timeout on the remote communications via ASCII.NET. If the remote control PC does not update the LT350 in time, the batch system as well as external IO will be placed in their off state until such time that communications is restored. The timeout can be set using COMMAND[74].

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APPENDIX A: STRING - LT350 TYPE I/II 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

[<][P][WWWWWWW][U][C][M][S][D][E][I][I][I][I][B][B] [>][C][C] 0 < 1 byte String start delimiter

1 P 1 byte Weight polarity can be [-] or [SPACE]

2 W 7 bytes Weight value string up to 3 decimal places

9 U 1 byte

K Units are set to [kg] kilograms L Units are set to [lb] pounds

10 C 1 byte Currently selected analog channel 1-4 11 M 1 byte Scale mode [N]et or [G]ROSS weigh mode

12 S 1 byte

[SPACE] Indicates normal operation O Indicates scale over capacity - Indicates scale negative M Indicates motion on scale Z Scale at zero weight [Z] or not at zero [SPACE]

13 D 1 byte Device identification code e.g. LT350 = 5

14 E 1 byte

[SPACE] Indicates no event S Barcode scanning string recorded K Indicates a key pressed

1-99 Batch Recipe Number

15 16 17 18

I 4 bytes

External IO port state in hexadecimal format [0000 to FFFF]. If all IO were set on the LT350 as output ports [00FF] means all ports currently set high. If lower 4 ports set as outputs and upper 4 ports set as inputs then [00FF] means output ports currently set to high and input ports read as high.

1920

B 2 bytes Internal IO batch control state in hexadecimal format [00 to FF]. These locations are fixed and the bit interpretations are supplied in real time. The exception is bits[6&7] when low, batch control is in STOP condition and when bit[6] is high the batch control is in the RUN state.

Bit 0 Scale gate IO[0] - Scale gate control OUT Bit 1 Auger gate [1] IO[1] - gate set point control OUT Bit 2 Auger gate [2] IO[2] - gate set point control OUT Bit 3 Auger gate [3] IO[3] - gate set point control OUT Bit 4 Auger gate [4] IO[4] - gate set point control OUT Bit 5 Auger gate [5] IO[5] - gate set point control OUT Bit 6 Batch Control IO[6] - External RUN/STOP IN Bit 7 Batch Request IO[7] - External Batch request IN

21 > 1 byte String end delimiter

22 C 1 byte Upper checksum hex byte for inverted checksum of bytes 0-21

23 C 1 byte Lower checksum hex byte for inverted checksum of bytes 0-21

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APPENDIX B: LT350-B 16 POINT DIGITAL IO EXPANDER DIN RAIL CARD

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APPENDIX C: LT350-B 16 POINT DIGITAL IO EXPANDER DIN RAIL CARD

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