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Operator Manual

Model DWM-IV

Summary of Contents for DWM-IV

Page 1: ...Operator Manual Model DWM IV ...

Page 2: ... Panel Data Entry 13 How to Enter and Exit System Setup 17 Configuration Setting Descriptions 18 Set Up Procedure 26 Calibration Procedure 35 Error Codes During Calibration 38 Error Displays 38 Programming Steps Summary 39 Serial Bi Directional Communications 42 Remote Control Inputs 43 Data Output Formats 43 Custom Print Format Programming 48 Print Codes and Descriptions 49 Standard Current Loop ...

Page 3: ... gross weight when tare weight has been entered Print Pushbutton Transmits data out of serial port Numeric ID Single register to enter up to seven 7 digits of numeric identification CN Six 6 digit consecutive number increments each time the PRINT button is pressed Recall Tare Pushbutton Used for recall viewing of tare weights Keyboard Tare Pushbutton 10 Tare look up 0 9 to enter predetermined tare...

Page 4: ...S Enclosure NEMA 4 Stainless Steel watertight wall mount enclosure Custom Systems Flex Weigh offers full engineering support for customized systems Contact your local dealer for further details Specifications Keyboard Sealed keyboard with tactile keys Display 6 digits and sign Seven 7 segment 0 5 high blue vacuum fluorescent type with annunciators for function select center zero tare net pieces F1...

Page 5: ...y 0 01 of full scale or one digit whichever is greater Data Output Serial ASCII 20 mA current loop with selectable baud rates 150 19 2K selectable auto or manual print continuous data out or bi directional communication Operating Temperature 10 degrees C to 40 degrees C 14 F to 104 F Humidity Maximum 95 RH non condensing Power 120 or 240 VAC 50 60 Hz 25 watts Fuse 1 4A 120 VAC 1 8A 240 VAC Dimensi...

Page 6: ... work furnished by them will conform to specifications drawings and to other data cited further stipulating that such material and workmanship shall be free from defect FWC will repair or replace at its discretion free of charge any equipment covered by this warranty which is returned within one year of installation or fifteen months after initial delivery and which upon examination proves to be d...

Page 7: ...Discard the protective materials Do not plug the meter into an AC voltage source until completing the inspection of the instrument With a proper screw driver loosen the screws holding the lid clasps in place Open the lid and visually inspect to make sure there are not signs of shipping damage such as broken wires loose components or fractured printed circuit boards This visual inspection is necess...

Page 8: ...insure electrical continuity 3 Attach the ground wire and secure with 10 32 hex nut as shown 4 Install the lockwasher under one of the screws securing the panel to insure grounding between the panel and the enclosure 5 Attach grounding label included adjacent to the bolt as shown Rev D Hoffman Engineering Company 900 Ehlen Drive Anoka Minnesota 55303 7054 U S A Phone 612 421 2240 Fax 612 421 1556 ...

Page 9: ...illuminated when in the piece count mode to indicate that the display is showing pieces instead of weight 6 F1 Future option not labeled on standard units 7 F2 Future option not labeled on standard units C KEYBOARD 1 Zero Button This button allows re zeroing of the scale over a 2 range of scale capacity or full scale capacity programmable During set up the automatic zero tacking may be disabled if...

Page 10: ... the full capacity Entries greater than full capacity will be cleared to zero The least significant digit LSD is automatically rounded to conform to the pre programmed instrument LSD Press the RECALL TARE button then a numeric button corresponding to the tare register desired if ten 10 tare look up feature is enabled and the ENTER button The previously displayed data will be shown Enter the requir...

Page 11: ...the presets already in memory simply press ENTER without pressing any numeric buttons or CLEAR The weight values will be displayed from zero 0 to three 3 or six 6 then return to normal weight display mode DRIBBLE The value entered as the dribble amount is subtracted from the final setpoint PRESET PREACT and this amount is the fast feed cut off setpoint It represents the amount of material desired ...

Page 12: ... 7 digits of numeric ID The current value of ID is displayed and may be changed by use of the numeric and ENTER buttons CN The consecutive number may be viewed or changed using this button The CN is automatically cleared to zero by totalizing but may be initialized to any value by use of the numeric buttons The CN increments before a print cycle begins as initiated by the PRINT button PC WT This f...

Page 13: ...y be comprised of multiple numeric entries The dotted line symbol indicates that numeric entry at this point in the sequence is not required unless the data are to be changed FUNCTION 0 TEST all display segments FUNCTION 1 PRESET entry of weight values Two speed feed enabled Preset 0 Preset 1 Preset 2 Preset 3 FUNCTION 1 PRESET entry of weight values Single speed feed enabled Preset 0 Preset 1 Pre...

Page 14: ...2 Dribble 3 FUNCTION 3 PREACT entry of weight values Two speed feed enabled Preact 1 Preact 2 Preact 3 FUNCTION 3 PREACT entry of weight values Single speed feed enabled Preact 1 Preact 2 5 Preact 6 FUNCTION 4 T D Time and Date Entry 12 Hour Mode Date Time AM PM ...

Page 15: ...ubtotal viewing or printing of selected register or Reg Prints Subtotal Exits No Printing FUNCTION 6 TOTAL Total viewing or printing of selected register Also selects the current register or Reg Prints Total Exits No Printing FUNCTION 7 ID Numeric ID entry of up to seven digits ID ...

Page 16: ...r Piece Entry and Piece Mode Selection Note Selecting Register 0 will disable the piece counting mode and return the display to the weight mode Pc Wt Reg Pc Wt RECALL TARE Keyboard Tare Entry of Known Tare Value Tare Weight RECALL TARE Keyboard Tare Entry Ten Tare Look up Tare Reg Tare Weight ...

Page 17: ...he F1 button on most units this will be an unlabeled button under RECALL TARE second down from the top on the right hand side The display will go to FCd0 Press PRINT to save changes or press TARE to change option to 1 or 2 Option 1 will discard all changes you have made you can also do this by turning off S1 at any time before the display shows FILEd Option 2 not available on earlier software is u...

Page 18: ...nts mode To disable raw counts and return to normal weighing either repeat the above procedure setting to d or simply remove power When you power the system back up raw counts mode will be disabled F1 1 Digital Averaging Used to increase the stability of the weight readings Higher settings will make the display more stable in a noisy environment wind vibration etc but will slow down the display re...

Page 19: ...Keyboard Enable Turns on off the right hand side of the keyboard Has no effect on the four 4 function buttons under the display F1 8 Output Options Controls the function of the J4 connector on the mother board Should be disabled if not used as it will slow down the system F1 9 High Resolution Mode Allows you to bypass the normal four 4 raw counts per digit requirement that would limit you to about...

Page 20: ...tor arrows to light upon power up The display will be disabled until either the ZERO or TARE buttons are pressed Required by Weights and Measures in some areas to show that a power failure has occurred F2 6 External Gross Net Enable When enabled the front panel GROSS NET button will not operate The system will instead take an input contact closure from TB1 3 of the mother board Unlike the front pa...

Page 21: ...ally First preset one 1 and then preset two 2 then preset three 3 etc The value of each preset must be higher than the one before it for the system to operate properly F3 0 Baud Rate Used to set the baud rate speed of all serial ports Serial data is available at TB2 and J6 on the mother board This must be set the same as the device to which it is connected F3 1 Parity The checksum bit used in seri...

Page 22: ... are allowed All preamble and postamble values are in hexadecimal base 16 0 9 A F If not used they should be set to FF Note that if custom print formatting has been enabled in F4 7 or F4 8 custom print formatting will begin after the postamble has been entered All custom print formatting is done in decimal base 10 0 9 Custom print formatting consists of two 2 pages The first is used for normal pri...

Page 23: ...auto print will not operate until the weight on the scale exceeds 600 lb This would be useful on a truck scale to prevent prints occurring when people walk across the scale F4 4 Bi Directional Communications Any function that can be performed from the keyboard can be performed through the bi directional interface Connection to this interface is provided on TB2 on the mother board in current loop I...

Page 24: ...me total and sub total registers you can total one while accumulating to another F5 0 Piece Weight Enable Enables the front panel PC WT button This function is used for counting You are given nine 9 registers in which you store weight values for single items When a register is selected the weight on the scale is divided by the value in the register and the number of items is displayed To turn this...

Page 25: ...it if necessary If F2 3 is enabled it also allows you to select the current register being used This is the button you use to enter keyboard tares Both the TARE and the RECALL TARE buttons store their values in the same register F6 0 Weight Units Used for Printing Controls the weight unit abbreviation used in printing and has no effect on the display For example if the scale display shows 100 and ...

Page 26: ...eeded parameters Use the following front panel switches to view and or change existing data values ZERO Used to scroll backward through the programming sequence steps TARE Used to scroll forward through the programming sequence steps when in function select mode and to sequence through available choices of individual functions PRINT Used to accept displayed data then to advance one step in the pro...

Page 27: ...dow by use of the TARE key A selection of d will disable the no motion requirement for use by the zero tare and print functions Choices 0 5 1 2 3 4 5 6 d F1 4 Auto zero tracking Enable d AZT disabled E AZT enabled F1 5 Auto zero tracking width Number of digits over which zero will track Choices 0 5 1 2 3 F1 6 Two Percent Zero Range Enable d Zero active at any weight E Zero active to 2 of capacity ...

Page 28: ...bled E Tare enabled F2 1 Tare Interlock d Tare may be changed at any weight indication E Weight must be at zero to clear tare F2 2 Auto Clear Tare d Not Active E Tare will automatically clear when indication returns to less than 10 positive digits of zero and no motion F2 3 Ten Tare Look Up d Provides single tare register E Enables ten register tare look up F2 4 Battery Option Enable d Battery bac...

Page 29: ...d Feed Enable d Single speed outputs six presets E Two speed feed active three presets F2 8 Sequential Feed Enable d Relays act in parallel fashion both fast and slow relays energize below preset E Relays act in sequential fashion fast relay energizes then slow relay energizes F2 9 Invert Relays Enable d RLY1 through RLY6 non inverted output E RLY1 through RLY6 inverted output RLY7 Fill Complete a...

Page 30: ...7 Bits No Parity 1 7 Bits Even Parity 2 7 Bits Odd Parity 8b 8 Bits No Parity 8be 8 Bits Even Parity 8bo 8 Bits Odd Parity F3 2 Checksum Transmit Enable d No checksum E Checksum transmitted prior to CR LF as the 2 s compliment of previously sent characters F3 3 Delay After CR LF The amount of delay after a carriage return or line feed is transmitted in seconds Choices 0 0 1 0 2 0 5 0 75 1 0 1 5 F3...

Page 31: ...at the beginning of a print The characters are entered in hexadecimal A value of FF is not transmitted The front panel keys are re defined during this step as follows ZERO Decrements current digit TARE Increments current digit GROSS Selects next digit to the right PRINT Accepts displayed value and advances to next step xxxxxx Postamble Characters Enables the user to define up to three characters t...

Page 32: ...le and postamble sent F4 2 Weight Change Percentage The following values specify the percentage change of Full Scale Capacity before the auto print latch is re armed Choices 5 10 15 20 25 F4 3 Minimum Print Digits above zero before auto print is latched Choices 0 10 20 30 F4 4 Bidirectional Communications d Bidirectional communications disabled 1 Bidirectional communications to customer computer e...

Page 33: ...me Date CN 1 ID Time Date Weight CN 2 ID Time Date CN Weight 3 ID Time Date CN Weight 4 Time Date ID CN Weight 5 Time Date ID Weight CN 6 ID Time Date CN Weight 7 ID Time Date CN Weight C Custom Weight Print Format Enable F4 8 Total Time Date ID and CN Print Format 0 Total ID Time Date CN 1 ID Time Date Total CN 2 ID Time Date CN Total 3 ID Time Date CN Total 4 Time Date ID Total CN 5 Time Date ID...

Page 34: ...t Enable d Piece Weight entry disabled E Piece Weight entry enabled F5 1 Consecutive Number Enable d Consecutive Number function disabled E Consecutive Number function enabled F5 2 ID Number Enable d ID Number function disabled E ID Number function enabled F5 3 Total Subtotal Enable d Total and Subtotal functions disabled E Total and Subtotal functions enabled F5 4 Time Date Enable d Time Date ent...

Page 35: ...call Tare entry enabled Calibration Procedure FSE F6 F6 0 Weight Units used for Printing d No weight units printed 0 Lb 1 kg 2 g 3 Ton 4 Tonne metric ton 5 oz 6 oz troy F6 1 Increment Size Least significant digit increment size Choices 1 2 5 10 20 50 100 F6 2 Decimal Position Display decimal position from none to four places to the left 0 No decimal ...

Page 36: ...se the numeric keyboard to enter the Full Scale capacity Press the ENTER button to advance to the next step 15 SEC Zero Setting Fifteen Second Delay Counts down from 15 to zero to capture the zero setting If the SELECT button is pressed during the time out period the meter will immediately terminate the delay and ignore the motion criterion to capture the weight Allow at least three 3 seconds afte...

Page 37: ...ep 15 SEC Span Setting Fifteen Second Delay Counts down from 15 to zero to capture the span setting If the SELECT button is pressed during the time out period the meter will immediately terminate the delay and ignore the motion criterion to capture the weight Allow at least three 3 seconds after weight has been applied to the scale before pressing SELECT or the weight captured may be erroneous CAL...

Page 38: ...ment Size Step F6 1 Deadload may be too high initially Add a resister 50k 500k ohm between EXC TB1 pin 7 and SIG TB1 pin 1 on A D circuit board CE4 Motion detected during delay period Ensure that the scale base is not bumped or unstable during calibration CE5 The scale has gone into overcapacity undercapacity or negative during delay period Check load cell connections and polarity of leads Gain ma...

Page 39: ...e Rate F1 3 Motion Limit in Digits F1 4 Auto Zero Tracking Enable F1 5 Auto Zero Tracking Width F1 6 2 Zero Range Enable F1 7 Key Functions Enable F1 8 Output Options F1 9 High Resolution Enable F1 A F1 B F1 C F1 D F2 0 Tare Enable F2 1 Tare Interlock F2 2 Auto Clear Tare F2 3 Ten Tare Look up F2 4 Battery Option Enable F2 5 Stand By Mode Enable F2 6 External Gross Net Enable ...

Page 40: ... D F3 0 Baud Rate Selection F3 1 Parity Selection F3 2 Checksum Transit Enable F3 3 Delay After CR LF F3 4 CN Print Enable F3 5 ID Print Enable F3 6 Negative Print Enable F3 7 24 Hour Clock Enable F3 8 Preamble Postamble Custom formatting use chart F4 0 Print Mode F4 1 Continuous Data Format F4 2 Weight Change Percentage ...

Page 41: ...7 Weight Print Format F4 8 Totals Print Format F4 9 Weight Accumulation Enable F5 0 Piece Weight Enable F5 1 CN Enable F5 2 ID Enable F5 3 Total Subtotal Enable F5 4 Time and Date Enable F5 5 Presets Enable F5 6 Recall Tare Enable F5 7 F5 8 F5 9 F5 A F5 B F5 C F5 D F6 0 Weight Units for Printing F6 1 Increment Size ...

Page 42: ...ne start bit seven or eight data bits one even odd or no parity bit and two stop bits for a total of 11 12 or 13 bits per character The BAUD rate parity and serial communications enable must be configured while in the SET UP procedure using F3 0 F3 1 F4 4 Serial Bi Directional Communications All functions accessible from the front panel may also be accessed using a remote communication link The fo...

Page 43: ... F3 6 F3 8 F4 1 F4 5 F4 6 F4 7 F4 8 F6 0 as described in the manual The information sent can optionally include time date consecutive number and ID number Additionally the output can be configured to send the data in any of eight 8 different formats The weight data may be configured in any of four 4 formats The time date information may be selected from four 4 formats Whenever data is transmitted ...

Page 44: ... Format Data Block where PR is preamble and PO is postamble In the format descriptions below the following abbreviations apply U N represents the programmed units and may be from zero to seven characters long T R represents the tare and may be any of the following depending on the programmed configuration 1 TR If single register tare is used and tare was entered via pushbutton 2 TR K If single reg...

Page 45: ... return 0Dh L F ASCII character line feed 0Ah A Displayed Weight Only Gross wt Only Net wt Only B Single Line GTN Note If tare equals zero or in the gross mode the format is the same as in Displayed Weight Only above C Multiple Line GTN Gross wt Tare wt Net wt ...

Page 46: ...rcap Zero Incr Size Relay 3 2 1 Overcap Incr Size Relay 2 L 1 0 LB Incr Size Relay 1 Notes 1 Conditions noted are true if corresponding bit is a logic 1 2 Increment Size values correspond to the following table Bit 2 1 0 0 0 0 By 1 s 0 0 1 By 2 s 0 1 0 By 5 s 0 1 1 By 10 s 1 0 0 By 20 s 1 0 1 By 50 s 1 1 0 By 100 s 3 Decimal Position values correspond to the following table Bit 5 4 3 0 0 0 No Deci...

Page 47: ...rns that make up each Status Word Example 5 1 in the Status B position would be bit pattern 0101 0001 count by 2 and print button pressed E Time Date Format 12 Hour Time Date H H M M A S M M D D Y Y S P S P 24 Hour Time Date H H M M S M M D D Y Y S P P F Totals Format Where x represents the totals register number currently selected If checksum is enabled it is inserted before a CR LF sequence G ID...

Page 48: ...ed via F4 8 Totals Print Format A total of eighty 80 print codes may be entered as a combination of weight print codes and totals print codes The codes are each one byte 8 bits long Any value less than 128 is treated as a literal ASCII character and will print as such Codes greater than 127 are special print codes and the DWM IV will interpret them according to the chart below to perform the descr...

Page 49: ...d described above for the weight codes Remember to always terminate the codes with value 255 Any number greater than 255 will be ignored and the previous data will be re displayed Print Codes and Descriptions For the following table refer to the Data Output Formats referred to as D O F and SET UP procedure sections of this manual Code Descriptions 128 Inserts ASCII STX and up to three 3 bytes of p...

Page 50: ...described in D O F section of this manual 142 Formats the time data in twelve 12 or twenty four 24 hour mode as pre programmed in Step F3 7 143 Formats the Date data as month day and year 144 Inserts the checksum data described in D O F 145 Delay 146 Store Preamble 147 Format Tare 148 Continuous Format 149 End Buffer NO ETX 150 239 Specifies multiple spaces 150 0 spaces 151 1 space 160 10 spaces e...

Page 51: ...12 32 35 13 58 13 72 H 36 131 59 14 69 E 37 10 60 15 82 R 38 13 61 16 69 E 39 130 62 17 41 40 10 63 18 10 Line Feed 41 13 64 19 13 Carriage Return 42 133 Formats Totals 65 20 132 Formats CN 43 10 66 21 10 44 13 67 22 13 45 255 Ends Total Field 68 23 131 Formats ID 46 69 ...

Page 52: ...solated circuitry Refer to FWC drawing MB 3017 B on page 20 TB2 on the motherboard provides the termination pins required Two modes of operation are possible 1 Peripheral device has active end of current loop 2 Peripheral device has passive end of current loop The diagrams below describe both configurations Connecting a Computer or Termi nal toYour DWM IV ...

Page 53: ...ce Connector Chart Notes 1 Install Jumpers as shown in the first Terminal column 2 Channel 2 and Tx2 are used for the continuous data output option 3 Some devices like PC s require RTS CTS DSR DTR pins be jumpered ...

Page 54: ......

Page 55: ...ntervention Is based solely on weight change percentage and motion detection Baud Rate The speed of the serial port in bits per second CN Abbreviation for consecutive number ing Consecutive Number A number that is automatically increased by one every time a print is performed ...

Page 56: ...cant digit position that never changes Dribble Something you do with a basketball OR A value used in a system with presets to compute the fast feed cutoff point in a two speed system Dual Data Output An option board that provides two data channels as well as two interface types RS232 and Current Loop FCD Abbreviation for File Changed Data FSE Abbreviation for Function Select Enable File Changed Da...

Page 57: ...lly found at a junk yard see Junk Yard Dog or Internal hardware that monitors the power supply and software and causes a reset if errors are detected Zero Function that establishes a new empty weight for the scale U S ASCII Character Set EQUIVALENT FORMS EQUIVALENT FORMS ASCII Char Dec Binary Oct Hex HP IB ASCII Char Dec Binary Oct Hex HP IB NUL 0 00000000 000 00 64 01000000 100 40 TA0 SOH 1 00000...

Page 58: ...1010 032 1A Z 90 01011010 132 5A TA26 ESC 27 00011011 033 1B 91 01011011 133 5B TA27 FS 28 00011100 034 1C 92 01011100 134 5C TA28 GS 29 00011101 035 1D 93 01011101 135 5D TA29 RS 30 00011110 036 1E 94 01011110 136 5E TA30 US 31 00011111 037 1F _ 95 01011111 137 5F UNT space 32 00100000 040 20 LA0 96 01100000 140 60 SC0 33 00100001 041 21 LA1 a 97 01100001 141 61 SC1 34 00100010 042 22 LA2 b 98 01...

Page 59: ...20 5 53 00110101 065 35 LA21 u 117 01110101 165 75 SC21 6 54 00110110 066 36 LA22 v 118 01110111 166 76 SC22 7 55 00110111 067 37 LA23 w 119 01110000 167 77 SC23 8 56 00111000 070 38 LA24 x 120 01111000 170 78 SC24 9 57 00111001 071 39 LA25 y 121 01111001 171 79 SC25 58 00111010 072 3A LA26 z 122 01111010 172 7A SC26 59 00111011 073 3B LA27 123 01111011 173 7B SC27 60 00111100 074 3C LA28 124 0111...

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