MSI CellScale 3750CS User Manual Download Page 2

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Page 2 MSI-3750CS RF Weighmeter • User Guide

3750CS

ELL

CALE RF DIGITAL WEIGHT INDICATOR

TABLE OF CONTENTS

NTRODUCTION

........................................................... 3

3750CS Display............................................... 3

3750CS Front Panel......................................... 3

3750CS Block Diagram................................... 4

EATURES

.................................................................. 4

ECTION

1 – U

NIT

NSTALLATION

................................ 5

Power ............................................................... 5

Totalize Switch ................................................ 5

Rear Connectors............................................... 5

Table Mount..................................................... 6

Wall Mount ...................................................... 6

ECTION

2 – RF S

CALE

OMMUNICATIONS

................. 7

FCC Statement................................................. 7

RF Network Description.................................. 7

Antennas .......................................................... 8

RF Network Setup ......................................... 10

Configuring for multiple networks ................ 12

Interpreting the RF Bar Graph....................... 13

Troubleshooting RF Connection Problems.... 13

ECTION

3 – S

CALE

PERATION

................................ 15

Power Key ..................................................... 15

Multiple Scale Channels................................ 15

Zero................................................................ 16

Setup Zero...................................................... 17

Tare ................................................................ 17

Setup Tare Mode............................................ 19

Net/Gross ....................................................... 21

Units............................................................... 22

Setup Units..................................................... 22

Peak Hold....................................................... 22

Print................................................................ 23

Test................................................................. 23

Activate / Deactivate Channels...................... 23

ECTION

4 – F

UNCTION

EYS

................................... 24

Define Function Keys .................................... 25

ECTION

5 – ID C

ODES

............................................ 26

ID Code Organization.................................... 26

Key Functions during ID Entry ..................... 27

Using ID Codes.............................................. 28

Setup ID Codes.............................................. 31

ID Code String 1 & 2..................................... 32

ECTION

6 – T

OTAL

/ S

TATISTICS

............................... 33

Total ............................................................... 33

Auto Total ...................................................... 33

Setup Total Menu .......................................... 34

Turning Auto Total On & Off ........................ 35

View Total...................................................... 36

Clearing Totals............................................... 37

Clear All Totals (All ID Codes at once)......... 37

Statistics......................................................... 37

Printing or Outputting Statistics .................... 37

Grand Totals................................................... 37

ECTION

7 – 3750CS M

ETER

ETUP

........................ 39

Main Setup Menu .......................................... 39

A/D Filter....................................................... 39

LCD Contrast................................................. 40

Lower Display Mode ..................................... 41

Real Time Clock Calendar............................. 41

Set Time & Date ............................................ 41

Setup Power Menu......................................... 42

Bargraph Menu .............................................. 43

Locking Scale Features.................................. 44

ECTION

8 – S

OINTS

.......................................... 47

Set Point Setup Menu .................................... 48

Example Set Point Programming................... 50

Relay Output Option...................................... 55

Relay Applications......................................... 56

ECTION

9 – C

OMMUNICATION

ORTS

........................ 59

Cabling........................................................... 59

Output Control Modes ................................... 59

Comm Port Parameters.................................. 60

Comm Port 2 Parameters............................... 61

Printer Output Formatting.............................. 62

Serial Output “@” Commands ...................... 64

Computer Host Commands............................ 71

ECTION

10 – C

ELL

CALE

ALIBRATION

................... 75

Enable / Reset Calibration ............................. 75

Calibration Flowchart .................................... 76

Reset All......................................................... 77

Calibrate Setup Menu .................................... 78

Legal Standard............................................... 78

Calibration Procedure .................................... 79

Enable/Disable AZM ..................................... 80

Motion Band .................................................. 81

Center of Zero Indicator ................................ 81

Motion Compensation Option ....................... 82

PPENDIX

A – M

ENU

APS

..................................... 84

PPENDIX

B – ASCII C

HART

................................... 90

PPENDIX

C – S

PECIFICATIONS

& F

EATURES

.............. 91

PPENDIX

D – I

NTERNAL

IRING

............................. 93

MSI L

IMITED

ARRANTY

................................. 94

Summary of Contents for CellScale 3750CS

Page 1: ...MSI3750CS RF Digital Weight Indicator a component of the CellScale System Measurement Systems International User Guide ...

Page 2: ...l 33 Auto Total 33 Setup Total Menu 34 Turning Auto Total On Off 35 View Total 36 Clearing Totals 37 Clear All Totals All ID Codes at once 37 Statistics 37 Printing or Outputting Statistics 37 Grand Totals 37 SECTION 7 3750CS METER SETUP 39 Main Setup Menu 39 A D Filter 39 LCD Contrast 40 Lower Display Mode 41 Real Time Clock Calendar 41 Set Time Date 41 Setup Power Menu 42 Bargraph Menu 43 Lockin...

Page 3: ...an read the output of many CellScales and 1 CellScale can also provide data to many 3750CS The large backlit alphanumeric display provides precise unambiguous indication of operating modes such as Net Gross or Total The 3750CS can calibrate a CellScale remotely and provides a simple user interface to the advanced features of the CellScale Digital calibration makes maintaining the system a snap and...

Page 4: ...ded for relative to full scale weight indication Also used for RF level indication Display illumination uses rugged long life LED backlighting coupled with a transflective LCD to provide optimum display contrast under all ambient conditions from full sunlight to total darkness Operation is light sensing automatic or manually set Versatile power input options AC Only 90 260 VAC 45 65 Hz 9 36 VDC In...

Page 5: ... directly to the battery negative terminal or where the negative terminal is attached to the chassis Brown Connect to Battery Positive Again a direct battery connection is usually best to avoid interference with vehicle electrical systems The 3750CS is internally fused If connected to a breaker or fuse panel use 1A at 12V 5A at 24V Fast blow or medium blow fuses are acceptable White Black and Gree...

Page 6: ...Page 6 MSI 3750CS RF Weighmeter User Guide 3750CS CELLSCALE RF DIGITAL WEIGHT INDICATOR 3750CS TABLE MOUNT 3750CS WALL MOUNT ...

Page 7: ...h the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Commensurate with EIRP limits specified in FCC Rules 15 247b this device may not be used with antennas that exceed 36dB of gain in point to poi...

Page 8: ...the 3750CS and associated CellScale master devices The radio signals travel primarily by line of sight LOS and obstructions between stations will degrade the system performance LOS is less important as distances decrease 2 When using the long range antenna mount the antenna on a tower or other elevated structure to ensure that you have a clear LOS transmission path This will raise the antenna to a...

Page 9: ... INTERNATIONAL Software V1 15 to 1 20 A Long Range Antenna If mounted outdoors seal antenna connectors with 3 4 adhesive heat shrink Raychem SCL 3 4 or Sumitomo W3B2 3 4 MSI P N 11563 B Standard Antenna Intended for indoor applications Protect from rain and sprayed water ...

Page 10: ...ce Address number of the primary master CellScale Ranges from 0 to 254 MY ID Each slave unit in a given Network must have a unique ID number Enter up to three digits to designate the 3750CS ID number Ranges from 0 to 254 TIMEOUT Sets the time in seconds 0 1800 that the 3750CS will wait for data from the CellScale The display will blank out if no data is received within this time period Defaults to...

Page 11: ...twork is not on or in range 6 Push the UP key to the C S ID menu 7 Use the numeric keys to change the C S ID number to match the SRC address programmed in the CellScale master Available C S ID numbers range from 0 254 In this example we ll use source 75 Use the appropriate numbers for your CellScale master It is not necessary to enter leading zeros 8 Push the ENTER key to set the C S ID 9 Push the...

Page 12: ... NET 1 The numeric digits indicate the current network CS ID pair 4 Change the Network number by pushing the numeric keys Available network numbers range from 0 31 In this example we ll use network 02 Use the appropriate numbers for your CellScale master You must enter a leading 0 for networks below 10 Push the 0 key followed by the 2 key 5 Use the numeric keys to change the C S ID number to match...

Page 13: ...usually F1 will send a Talk to me message to the master CellScale If this fails to initiate conversation recheck your C S ID numbers and make sure they match Also if there are additional 3750CS units set to the same network they must have different Slave IDs see MY ID Another common cause of perceived problems is the Phantom Network This occurs when there is a conflicting Network within broadcast ...

Page 14: ...ularly bad blocking is caused by metal buildings solid concrete walls and anything else that has fairly high electrical conductance Raising the antennas higher can help Sometimes just moving the antennas sideways will find an RF path that will improve distance The CellScale can sometimes take advantage of reflecting surfaces to get around obstacles Antennas should always be place in vertical polar...

Page 15: ...nnel A D 1 4 1 1 Sub channel mux 1 8 The channel will vary from 1 4 and the sub channel from 1 8 In addition the CellScale provides channel 5 for slave CellScales and channel 6 for math channels which allow the user to add or subtract channels from each other or perform other math manipulations of the data All calibration data for the 32 channels is stored in the CellScale and is independent of th...

Page 16: ...n on Scan Lists and dealing with multiple channels please refer to the CellScale manual TO ACCESS MULTIPLE CHANNELS As mentioned above the 3750CS will access any channels setup in the CellScale It does this with the SC INDEX function The SC INDEX steps from channel to channel as dictated by the Scan list stored in the CellScale If the CellScale has only one scale channel defined this procedure is ...

Page 17: ... normal scale operation TARE Tare is typically used to zero out a known weight such as a packing container or pallet and display the load in NET weight A Tare value is entered in one of three ways 1 AUTO TARE When the TARE key is pushed twice the current weight is zeroed and Net Weight is displayed 2 KEYBOARD TARE Using the numeric keys the operator keys in the desired Tare Weight then pushes the ...

Page 18: ...rt step 2 2 Using the numeric keys input the value desired In this example we ll use 0 5 lb as a Tare Value The 3750CS will automatically place a leading zero if the Tare value starts with the decimal point 3 The Tare Value 0 5 is displayed 4 Push ENTER to place the value in the Tare Register The display reads TARE SET and displays the Tare value for 1 second All subsequent readings have the Tare ...

Page 19: ...omatic TARE Clear function AUTO CLR and the TAREALL function UNIV TAR TAREMODE 1 AUTO Only Auto Tare is in operation Every time the TARE key is pushed the current weight on the scale is tared 2 KBD UPDN In this mode pushing the TARE key will enable the numeric keypad for Keyboard Tare and the UP DOWN scroll keys for TARE UP DOWN Also in this mode pushing the TARE button a second time will enact AU...

Page 20: ...ode to KBD UPDN 5 Push ENTER The Scale returns to the SETUP TARE menu 6 Push EXIT to return to normal operation with the TARE key function altered 1 2 TAREMODE 3 TAREALL 3 AUTO CLR 4 DISABLED 5 ENABLED 6 AUTO CLR 7 1 Push SETUP 2 Push TARE The TAREMODE submenu is shown 3 Push the UP scroll key to change the submenu to AUTO CLR 4 Push ENTER The first selection is the current AUTO CLR mode 5 Push th...

Page 21: ...to return to permanent Gross readings is to clear the Tare see Clear Tare procedure 1 2 TAREMODE 3 TAREALL 4 DISABLED 5 ENABLED 6 TAREALL 7 1 Push SETUP 2 Push the TARE switch The first menu choice TAREMODE appears 3 Push the UP scroll key to change the menu to TAREALL 4 Push ENTER The first selection is the current TAREALL mode 5 Push the UP key to change TAREALL to ENABLED 6 Push ENTER TAREALL i...

Page 22: ...ht Readings 1 Program a FUNCTION key for PEAKHOLD See Section 4 2 Turn on the Peak Hold mode by pushing the selected FUNCTION key The display reads PEAK NET or PK GROSS to indicate peak hold mode is enabled The display will only update when a greater KILOGRAM SHORTTON 1 2 UNITS 3 4 5 KILOGRAM Scroll Through Available units 5 GRAMS 6 Push UNITS Usually F5 The displayed weight will change to the nex...

Page 23: ...r an error message is displayed 1 Push the SETUP key 2 Push the 9 key a All segments turn on for 1 second the off for 1 2 second b All digits 7 segment and 16 segment count once from 0 to 9 All annunciators are tested including lb kg t and the Total LED c Battery condition is displayed next in the form of Battery life with a figure from 1 to 100 on the digits The battery life will vary depending o...

Page 24: ...ls Function Keys are setable to any of the following functions Grand Total Display totaled weight of all ID Codes 1KeyClrTotal Clears current IDs Total 2KeyClrTotal Clears current IDs Total requires confirmation key Clr Last Total Clears only last weighment Grand Total Displays grand total of all IDs ID Number Push to change the ID code SC Index Switch between selected scale channels Modem Configu...

Page 25: ... SETUP Screen 2 Push SETUP again The first setup menu item is KEY FCTN In this example we ll change the function of the UNITS key F5 to SETPOINT 3 Push ENTER You are now in the KEY FUNCTION Menu The LCD reads ASSGN F1 4 Push the DOWN Scroll key to change to ASSGN F5 5 Push ENTER The current Function Key selection is shown 6 Use the UP DOWN keys to scroll through all the functions that F5 key can b...

Page 26: ...ted when a new name is entered by the user The name can be all numbers all letters or a combination of numerals and letters Once the name is entered by the user the CellScale scans its memory to see if the ID Code already exists If it does all new totaled weighments are added to the previously totaled weighments and any preexisting Tare value will be used for NET weight computation If the name did...

Page 27: ...a numeric keys They provide a convenient way to change for example a 1 to a 2 Left and Right Cursor Keys Use to position the cursor under characters to be edited Used to insert characters within a string Position the cursor over the character you wish to insert in front of then push the NET GROSS key The highlight character will appear on the current position Pressing the DOWN Scroll key will dele...

Page 28: ... USING ID CODES To Create a New ID Code Numeric example 1 2 3 S 3 T 4 TD 4 TE 5 TES 6 TES_ 7 TESS 7 TEST 8 TEST_ 1 Push ID The current ID is displayed 2 Push the Aa1 ALPHA key to enable the Alphanu meric keys The right most numeric digit displays a U indicating Upper Case In this example the ID Code will be TEST 1a 3 Enter in the word TEST As the S and T are on the same key this is a good illustra...

Page 29: ... process of accessing an existing ID Code is identical to the process of creating a new ID Code When the 3750CS detects an ID Code entry it always checks to see if the Code already exists 1 2 5_ 3 56_ 3 567_ 4 4 5 1 Push ID The current ID is displayed This example uses F1 can be changed with the Function Key setup procedure 2 Push the first digit of the new ID Code In this example we are searching...

Page 30: ... The 3750CS returns to normal scale operation with the new ID Code AARDVARK for example active Any Tare value and new totals will be stored in the ID Code AARDVARK 1 Push ID The current ID is displayed 2 Push the CLR key The message CLR 1 ID appears 3 Push ENTER to delete the ID Code The previous ID Code is deleted and the next ID Code alphabetically will become active Push EXIT instead of ENTER t...

Page 31: ...h the ID key whatever Fkey ID is assigned to The message display reads ID NUMBR 3 Press ENTER The display reads ID NAME 4 Push ENTER to go to the edit screen 5 The message display will show the far left character blinking Use the LEFT RIGHT Cursor keys to select the character you wish to edit Use the UP DOWN keys or use the standard Alpha Numeric entry procedure to change the letter s When finishe...

Page 32: ... procedure To Access an Existing ID Code page 41 1 2 ID NUMBR 3 ID NAME 4 NUM DISP 4 STRING 1 5 6 to select char 6 to scroll char 6 to input char 7 to finalize edit 1 Push SETUP 2 Push the ID key The message reads ID NUMBR 3 Push ENTER to access the menus 4 Use the UP key to find the desired ID Code String STRING 1 or STRING 2 5 Push ENTER The current string if any will be displayed 6 The message ...

Page 33: ...hrough the use of the PRINT button or with a computer hookup AUTO TOTAL SETUP Option see SETUP TOTAL to enable Auto Total When the weight exceeds the Total Threshold the total function operates automatically There are 5 modes of Auto Total Each mode is used in slightly different ways Mode 1 Autonorm The displayed weight is held in a holding register and added when the weight returns below the Tota...

Page 34: ...the current total See To Clear the Total Value to learn how to erase the Total Rules for Auto Total 1 Cannot be in motion An auto total acceptable reading is indicated by three or more short flashes of the Total LED 2 Weight readings must be greater than the set Total Threshold 3 Each reading added to total must be preceded by a return to zero Net or Gross or below the Total Threshold TOTAL MENU S...

Page 35: ...hould be pushed after the LCD indicates AUTONORM 6 Push the EXIT key to return to normal scale operation Auto Total is now enabled The small AUTO annunciator will appear Turn on Auto Totaling by pushing the TOTAL key The display will read TOTAL ON and the small AUTO annunciator will appear Turn off Auto Totaling by pushing the TOTAL key The display will read TOTALOFF and the small AUTO annunciator...

Page 36: ...ice MOTION 4 Push ENTER The message display shows ENABLED or DISABLED 5 Toggle the motion condition with the UP or DOWN key ENABLED means totals will not function until the weight has settled DISABLED indicates that motion conditions are ignored 6 Set the new Total Motion condition by pushing ENTER 7 Push the EXIT key to return to normal scale operation To Erase the last Totaled Weight If the last...

Page 37: ...e sure all data is recorded as necessary before proceeding To Clear All the Totals of all ID Codes at once ALTERNATE CLEAR TOTAL METHODS The 3750CS offers two alternative methods for clearing the totals These are set up using the Function keys see section 4 1KEYCLR will clear the current IDs Total without further confirmation The 2KEYCLR mode requires confirmation by asking R U SURE Then the user ...

Page 38: ...he average value the mean The 3750CS uses the non biased or n 1 method that is based on sampling a portion of each available weighment Standard Deviation uses the following formula where x is equal to the total and n is equal to the number of samples COEFFICIENT OF VARIANCE is a relative dispersion calculated from the sample standard deviation and the mean with the following formula GRAND TOTAL is...

Page 39: ...der software control contact factory for details LOWER DISPLAY MENU CH NUMBR SC INDEX WT TYPE DISABLED n SAMPLES n GRAND ONE ID ALL ID ID NAME ID CODE CH NAME ASSGN F5 ASSGN F4 ASSGN F3 ASSGN F2 ASSGN F1 TIMEDATE MENU MAIN SETUP MENU ENABLED DISABLED CONTRAST FILTER MENU HIGH LOW NONE CONTRAST KEY FCTN TIMEDATE DATE TIME WEEKDAY INPUT MM DD YY INPUT HOUR MIN INPUT 1 SUN 2 MON 3 TUES 4 WED 5 THUR 6...

Page 40: ... 2 Push the UP scroll key until the menu selection is CONTRAST 3 Push ENTER The current setting for the contrast is shown 4 Adjust the contrast by pushing the UP or DOWN key Observe the display from the angle it is normally used Adjust the contrast just to the point where there is no ghosting of the unlit segments 5 Push ENTER 6 You are back in the SETUP menu Return to normal scale operation by pu...

Page 41: ...WN key Shown is the order using the UP key For demonstration purposes we ll select ONE ID which will display the total weight of the current ID 5 When the desired lower display mod is shown push ENTER 6 You are back in the SETUP menu Return to normal scale operation by pushing EXIT SETUP 1 KEYFCTN 2 TIMEDATE 3 SET 4 TIME 5 HOUR MIN 6 20 30 00 6 7 8 1 Push SETUP twice The message reads KEY FCTN 2 P...

Page 42: ... up command is received Therefore to achieve no worse than a 1 second turn on set the mode to the 12HR SEC or the 24HR SEC selection The mode has no effect on the power switch Operating the Clock from a battery powered MSI 3750CS has very little effect on battery life The LCD and LCD drivers use only minimal power The µP is only awake long enough to update the LCD so its average power consumption ...

Page 43: ...t represents successful packet transmissions When the Bar graph starts to shorten multiple retries of packet transmissions are failing This will happen when the signal is blocked or nearly out of range 2 PER CENT The Bar graph represents a user programmed span of the weight reading The 100 and 0 settings are programmable anywhere within the capacity of the scale 3 DISABLED Turns off the Bar graph ...

Page 44: ...Using the numeric keys enter the value that you want to equal 100 on the bar graph In this example we ll enter 20 kg as 100 13 Push ENTER back to the MENU level 14 Push the EXIT SETUP key to return to normal scale operation The Bar graph is now activated The 0 segment is equal to 10 kg the 100 segment is equal to 20 kg Bargraph Resolution The bargraph has 20 segments plus under range and over rang...

Page 45: ... the menu item LOCK MODE 4 Push ENTER The list of lockable items appears The numeric display indicates if the item is locked Loc or unlocked UnLoc The CLRLATCH item shown is for illustration only The item appearing will depend on previous lock mode operations 5 Use the UP or DOWN keys to scroll through the list Use the LEFT or RIGHT cursor keys to toggle between locked and unlocked In this example...

Page 46: ...ER The message reads ENTRCODE 4 Push ENTER if no security code is needed If a custom lock code is desired enter up to a four digit lock code with the Numeric keys IMPORTANT Make note of the code In this example we ll use 11 as a lock code 5 Push ENTER to lock the 3750 The display briefly indicates LOCKED then returns to the LOCK CODE menu 6 Push EXIT to return to normal scale operation All functio...

Page 47: ...nclude weight parameters time date and any random text the user requires using MSI codes These actions are independent of what the CellScale does and are independent of other 3750CS s that might be on the Network These Set Point actions are stored only in the 3750CS and must be programmed independently in all 3750CS s used in the system Parameters stored in the CellScale All parameters related to ...

Page 48: ...20kg Deadzone Set Point trips on at 1000kg Turns off at 980kg Although the CellScale allows it it never makes sense to program a Preact and a Postact for the same Set Point since they would cancel each other out However it is sometimes desirable to combine Preact or Postact with Deadzone This would provide hysteresis to the relay or hopper valve and prevent chatter To illustrate this building on o...

Page 49: ...grammed in the CellScale Single scale CellScale systems will usually use only input source 1 The only way to know which scale channel is programmed to what channel list location is to have a printout of the CellScale Channel List See the CellScale manual for more information on the Channel List OUTPUT DESTINATION OUT DEST The output destination defines the Set Point output at the CellScale end It ...

Page 50: ...edded in the SP String they will not be interpreted and will display as written 2 Normal The LCD is not affected by the Set Point 3 Blank LCD the weight display is blanked while the Set Point is true 4 Blink the weight display blinks while the Set Point is true SET POINT OUTPUT SP OUTPT This menu directs where the SP String message goes Choices are Comport1 On or Off and Display On or Off TEST SET...

Page 51: ...Set Point is enabled 12 Push the UP key until the OPER 1 menu appears 13 Push ENTER The current Operator function appears 14 Use the UP or DOWN key to select the desired operator In this example we ll use GT or EQ which means Greater than or Equals 15 Push ENTER The operator is now stored 16 Use the UP key to scroll to TRIGTYP1 17 Push ENTER The message shows the current trigger type 18 Use the UP...

Page 52: ...ENTER The message reads NEW VAL1 11 Use the numeric keys to enter a value for Value 1 In this example we ll program 300 lb 12 When all digits are complete push ENTER 13 Use the UP or DOWN key to scroll to OP RELAT This is the menu which defines how the two thresholds relate to each other 14 Push ENTER The message reads the current opera tor relationship which defaults to NONE 1 ALL SP 2 DISABLED 3...

Page 53: ...e requires knowledge of the CellScale Channel List In single channel systems the input source is always 1 which is the default In that case this procedure can be skipped If however a Set Point is assigned to a second or higher input or math channel this procedure is necessary For this example we ll assume a two entry Channel List and we ll assign this Set Point to channel list entry 2 1 INP SRC 1 ...

Page 54: ... and ASCII value in decimal notation 3 Use the UP key to scroll through the Screen mode choices Blink Blank Message and Normal In this example we ll choose BLINK 4 Push ENTER to store the screen mode The LCD Mode has been set To add functionality to the Set Point continue on to any or all of the following procedures or push the EXIT SETUP key to return to normal scale operation To Control the LCD ...

Page 55: ...ts use round cable that has an outside diameter of 187 to 312 5mm to 8mm for proper sealing with the watertight fittings The terminal blocks are suitable for wires from 16 to 24 gauge There are up to four watertight fittings dedicated to the Set Point Outputs depends on options installed Multiple conductor cable will be necessary to access all of the relays Cable Installation Procedure 1 Unplug th...

Page 56: ...gure 1 Set Points are often used in conjunction with automatic conveyer belts By using the set point relays conveyor belts can be controlled by weight Using two Set Points allows speed control for dribbling or speeding up etc Figure 2 shows a simple arrangement where the motor is turned off when a set point is reached Pay attention to the current and voltage ratings of the relay when using them fo...

Page 57: ...take data directly from RS 232 and integrate the data into the control process See the RS 232 option section for details Figure 6 Logic Output Set Point 8 Set Point 8 is unique from Set Points 1 7 The output consists of a logic output capable of driving standard TTL loads As the output is in reality 4000B series CMOS devices it may be necessary to provide an external pull up resistor in certain ca...

Page 58: ...ected to provide a reference level Output level is nominally 5V but can vary from 4 8 to 5 2V Figure 7 Besides providing a direct logic output to PLCs or other controllers the logic output can be used to drive external relays Figure 8 shows an example of the logic output driving an external N channel MOSFET which can turn on a high power relay Figure 8 ...

Page 59: ...l input output conform to the EIA Standard EIA 232 D downward compatible with RS 232C Comm Port 1 is configured as DCE Cable connections include RXD input TXD output Ground CTS input RTS output and Shield Ground also known as Frame Ground CTS RTS handshaking is optional and the lines do not need to be connected COMM PORT CABLING 3750CS units have a water proof connector on the rear panel This conn...

Page 60: ... Load Change When the load weight exceeds the Total Threshold and motion ceases one transmission of data will occur Once transmitted the scale must return below the Total Threshold to re enable the transmission Interval has no effect in this mode 9 Print Continuous or on Intervals The Data String can be transmitted continuously for driving scoreboards The MOTN DET menu determines if printing is al...

Page 61: ...de this can generate a time based data logging system An interval of 0 seconds means that the scale will output data at the highest rate possible limited to 4 readings per second Interval used with other control modes can be useful for control and monitoring purposes SETTINGS The Settings menu is used to set standard Comm Port parameters See To Set The Baud Rate for an example of how to use these ...

Page 62: ...R key 4 Terminate the character string by pushing ENTER twice Character Set A B C D E F G H I J K L M N O P Q R S T U V W X Y Z _ abcdefghijklmnopqrstuvwxyz spc 0123456789 Control characters and any other character can be printed with the following procedure Alternate Characters and Control Characters 1 Push the TARE key This enables the ASCII numeric entry mode A place holder character indicates ...

Page 63: ...s must be saved with the double ENTER key push or by pushing the POWER key To disable the Entire Print String Position the cursor blinking character over the first character in the Print String Push INSERT to insert a º ASCII 255 character at the beginning of the String Push ENTER twice to store the disabled string This procedure is more efficient than using the CLEAR key to delete the entire Stri...

Page 64: ...e used to position data on a label without having to enter multiple spaces Input Data Form Bxx where xx is any number from 01 to 99 which equals the number of spaces desired Note Exactly two digits must follow the B command Output Data Form x spaces are output limited to 99 For more spaces use two B commands in series Note For spaces fewer than 5 it is more memory efficient to enter spaces instead...

Page 65: ...Y Length 10 Justification left position 10 always a space D5 2 5 J U L 2 0 0 0 Length 8 Justification left leading day zero suppressed D6 4 2 5 2 0 0 0 Length 8 Justification full leading month zero suppressed D7 2 5 0 7 2 0 0 1 E PRINT END OF LINE Use the E command to output the end of line string The EOL string is entered in the printer Format section Input Data Form E Output Data Form Sends out...

Page 66: ...t to change with the ID Code Input Data Form L1 Print ID Code String 1 L2 Print ID Code String 2 Output Data Form Depends on user entered Strings Up to 20 bytes unless codes are embedded which could increase the length of data generated by this command Caution Do not embed an L command inside the ID String as this will cause an endless loop M PRINT WEIGHING MODE Use the M command to print either t...

Page 67: ...nd to print the current ID Code Name Input Data Form N Output Data Form N I D N A M E Length 8 Justification left Up to 8 Characters S PRINT START OF LINE STRING Use the S command to output the Start of Line string The SOL string is preprogrammed in the COMM PORT Setup Menus Input Data Form S Print SOL String Output Data Form Sends out the SOL string a maximum of 8 bytes T PRINT TIME Use the T com...

Page 68: ...s weighments counter V7 Total n Totals Combined V5 and V6 V8 Lower Display Note prints the lower display as setup by the user V9 Last Totaled Weight Note will print dashes if no weight has been totaled Output Data Form V1 V2 V3 V4 V9 2 0 5 0 2 Length 8 Justification full leading hours zero suppressed V5 1 2 3 4 5 6 7 8 9 Length 10 Justification right leading zeros suppressed V6 1 2 3 4 Length 5 Ju...

Page 69: ...ode left W5 1 2 2 0 0 1 5 L B T O T A L Length 22 Justification Weight right Units left Mode left characters 11 16 and 22 always a space W6 1 2 3 4 T C N T Length 12 Justification Counts right Mode left characters 1 6 and 12 always a space W7 4 3 2 5 3 4 8 5 K G T O T A L 1 2 3 4 T C N T Length 34 Justification Weight right Units left Mode left Weighments right T CNT left W8 m m m m m m m m Length...

Page 70: ...MSI 3750CS CELLSCALE RF DIGITAL WEIGHT INDICATOR THIS PAGE INTENTIONALLY LEFT BLANK PAGE 70 MSI 3705CS RF Weighmeter User Guide ...

Page 71: ...The computer can query the scale at any time to get status weight or accumulated totals General Protocol The MSI 3750CS responds to ASCII commands that consist of a two letter mnemonic Depending on the command a 1 or 2 digit item selection sub code may be required Certain commands require user supplied data Commands sent from a host computer can be chained together in any order Commands are termin...

Page 72: ...icolon Bar Graph 0 value GZ Enter value to 0 in current weight units Terminate value with any command or a semicolon Bar Graph Mode GM 1 Disabled 2 Per Cent 3 RF Modem ID ID Enter value to 0 in current weight units Terminate value with any command or a semicolon ID Code Dis play mode IL 1 Disabled 2 Normal 3 Per Cent ID Name IN Input up to an 8 character name End with a if name is less than 8 char...

Page 73: ...ble S 1 32 for Set Points 1 through 32 S sets which set point receives data with the other set point commands Set Point Dead Zone Value SD Enter value in current units Terminate weight value with a semicolon or another command All set points mode enable SE 1 Disabled 2 Enabled Set Point Latch SL 0 Off 1 On Set Point Mode SM 1 Disabled 2 Total 3 Net Gross 4 Gross Set Pt Message to Comm1 SO1 0 Off 1...

Page 74: ... TA Input tare value in current units Units Print Mode UP 1 Upper Case 2 lower case Set Units UN 1 lb 2 kg 3 tons short 4 metric tons 5 oz 6 g 7 daN Example ST1 150 sets the first set point value to 150 Example ST2 200 sets the second set point to 200 With both examples as shown a set point window has been made from 150 to 200 Example TA20 0 sets the tare to 20 0 If your printer prints lower case ...

Page 75: ...e unit is legal for trade set the appropriate standard with the LEGAL STANDARD procedure If the unit is to be used with metric units only set the standard to METRIC else use INDUSTRY 4 Follow the CALIBRATION procedure to set capacity d and then calibrate 5 Reseal the Cal port when finished For recalibration of a previously calibrated CellScale 1 Select the scale input for calibration using the SC ...

Page 76: ...ON COMPLETELY RESETS CALIBRATION INITIAL CALIBRATION STANDARD CALIBRATION CAL ZERO CAL Zero Cal OK WAIT up to 10s INPUT VAL TEST WEIGHT LOAD SCALE Next Test Wgt SPAN CALIBRATION Zero Cal ERROR SPAN Cal ERROR Too much dead load or offset in the load cell Exit key or 5th Span Wgt SETUP INPUT POWER Next Span Weight Too little or too much weight on the scale ZERO 0 0 9 0 9 CAL STD CAL SELECT CAL UNITS...

Page 77: ... while the registers are cleared If you change your mind pushing EXIT will cancel the Reset All operation 2 3 RESETALL R U SURE 2 CALSETUP 3 RESETCAL 1 Expose the Calibration Seal Port by removing the seal screw on the left side of the 3750 Meter Casting with a Phillips Head Screwdriver The display reads CALSETUP 2 Insert a small non metallic screwdriver or the wooden stem of a Q Tip and press and...

Page 78: ... Calibration See Enable Calibration Contact MSI for details on the differences between the various configurations To Select the Legal Standard 1 1 STANDARD 2 INDUSTRY 3 NIST 3 OIML 3 METRIC 4 STANDARD 5 or 1 Use the UP or DOWN scroll key to scroll to the STANDARD message 2 Press ENTER The current Standard is displayed 3 Use the UP or DOWN key to scroll through the Standards options For this exampl...

Page 79: ... when the proper choice is displayed In this example the 3750CS is an AC unit 5 Next set the default units the scale is calibrated in Use the UP or DOWN key to scroll to the desired Calibration Unit In this example we ll pick KILOGRAM The capacity initially programmed in the calibration units determines the overload value 6 Press ENTER to set the Calibration Units 7 Next set the capacity of the sy...

Page 80: ...ion port 0 SCALE 11 CAL ING WEIGHT 1 12 Load scale with calibration weight 13 5_ 13 50_ 13 500_ 13 500 _ 13 500 2_ When the weight it stable 14 CAL ING 15 WEIGHT x 16 or 5th Cal Point 17 CAL OK STORING 17 or TO ENABLE DISABLE AZM AUTO ZERO MAINTENANCE AZM is used to adjust out variations at zero caused by debris or water on the scale temperature drift and any other minor variation that affects the...

Page 81: ... 6d and cannot be altered In systems used for industrial applications the motion band can be adjusted larger Adjusting the motion band larger can help in medium accuracy applications where there is a lot of vibration or noise and it is difficult to hold the weight steady enough to tare zero or total For example setting the motion band to 5 d would allow a tare or zero or total to be as much as 5d ...

Page 82: ...cific knowledge of the internal workings of the CellScale A D parameters that are only accessible through the terminal interface Contact MSI for additional information 3 MSI WT The user must know the active weight MSI WT of the scale itself This number is not easy to determine and is usually provided by MSI for MSI designed load trains For load cell systems not supplied by MSI please contact MSI f...

Page 83: ... unit as shown on the display 13 Push ENTER to store the MSI WT 14 Use the UP key to locate the submenu USER WT 15 Push ENTER The current user weight it displayed 16 Using the numeric keys input the USER WT For this example we ll input 240 kg The USER WT is equivalent to the dead load of the scale In MCS and OMS systems the USER WT is the weight of the magnet and chains beneath the scale 17 Push E...

Page 84: ... TIMEDATE MENU MAIN SETUP MENU ENABLED DISABLED CONTRAST FILTER MENU HIGH LOW NONE CONTRAST KEY FCTN TIMEDATE DATE TIME WEEKDAY INPUT MM DD YY INPUT HOUR MIN INPUT 1 SUN 2 MON 3 TUES 4 WED 5 THUR 6 FRI 7 SAT SETUP SETUP VIEW UNITS TOTAL TEST STRING 2 STRING 1 STATS SETPOINT PEAKHOLD RF NTWK MODEM SC INDEX ID NUMBR GRNDTOTL CLRLAST 2KEYCLR 1KEYCLR CLRLATCH DISABLED KEY FUNCTION MENU 24HR SEC 24HR M...

Page 85: ...MSI 9000 CellScale System 3750CS User Guide Page 85 MEASUREMENT SYSTEMS INTERNATIONAL Software V1 15 to 1 20 UNIV TAR ...

Page 86: ...Page 86 MSI 3750CS RF Weighmeter User Guide 3750CS CELLSCALE RF DIGITAL WEIGHT INDICATOR Enter up to 8 Characters Enter up to 255 Characters Enter 1 Character Enter 1 1 254 ...

Page 87: ...IONAL Software V1 15 to 1 20 DANEWTON GRAMS OUNCES METRIC T TONS KILOGRAM POUNDS POWER SRC MENU PWR BATT PWR VEHI PWR AC BACKLIGHT MENU ON AUTO OFF 24 HOURS 8 HOURS 4 HOURS 2 HOURS 1 HOUR 30 MIN 10 MIN DISABLED AUTO OFF MENU POWER SETUP MENU LIGHTING AUTO OFF EXIT SETUP POWER POWER ...

Page 88: ...Page 88 MSI 3750CS RF Weighmeter User Guide 3750CS CELLSCALE RF DIGITAL WEIGHT INDICATOR ...

Page 89: ...MSI 9000 CellScale System 3750CS User Guide Page 89 MEASUREMENT SYSTEMS INTERNATIONAL Software V1 15 to 1 20 ...

Page 90: ...Page 90 MSI 3750CS RF Weighmeter User Guide 3750CS CELLSCALE RF DIGITAL WEIGHT INDICATOR APPENDIX B ASCII CHART ...

Page 91: ...eared latched Set Points Peak Hold Captures maximum readings String1 and String 2 Displays user configured print strings asso ciated with each ID Test Performs LCD display test Units 1 button access to switching weight units Disabled no function assigned Programmable Features Automatic or Manual Tare entry 32 Set points with messaging capability Peak Hold for capturing maximum readings 32 programm...

Page 92: ... be used for accept or an out of limits indicator for blind check weighing Can also be configured as a totalize alert External Totalize Switch included with Audible Totalize Indicator A transient protected switch input with connector for remote totalize switch Normally open momentary switch is supplied by the end user Supplied with 13 4m cable Long Range Antenna A 9dBi gain antenna with a 10 3m lo...

Page 93: ...MSI 9000 CellScale System 3750CS User Guide Page 93 MEASUREMENT SYSTEMS INTERNATIONAL Software V1 15 to 1 20 APPENDIX D INTERNAL WIRING ...

Page 94: ...terials or otherwise The Company shall not be liable for any personal injury or property damage resulting from the handling possession or use of the equipment by the customer The warranty set forth herein is exclusive and is expressly in lieu of all other warranties express or implied including without limitation any implied warranties of merchantability or fitness or of any other obligations or l...

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