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GM8802C-DWeighing Transmitter

6 GM8802C-D110101

2 Installation

2.1 Connection of Power Supply

GM880C-D

weighing transmitter uses

24V

direct-current power and the connection is

follows:

2.2 Connection of Load Cell

GM8802C-D

weighing transmitter need to be connected with bridge type resistance

strain gauge load cells as below figures. When you chose the four-wired load cells, you

must bridge the

SN+

with

EX+

and bridge the

SN-

with

EX-

DC+

Positive pole

DC-

Negative pole

Содержание GM8802C-D

Страница 1: ...GM8802C D User Manual GM8802C D110101 48010224231000 ...

Страница 2: ...onnection of Load Cell 6 2 3 Connection of Serial Interface 100 3 Calibration 11 3 1 Descriptions of Calibration 61 3 2 Flow Chart of Setting Parameters 122 3 3 Millivolt Value Display 17 3 4 Calibration with Weight 18 3 5 Calibration without Weight 19 3 6 Serial Ports Calibration Switch 211 3 7 Log Table for Parameter Calibration 1 231 3 8 Log Table for Parameter Calibration 2 233 ...

Страница 3: ... 1 EASY Protocol 33 5 2 RE Protocol 36 5 3 RS Protocol 39 5 4 SP1 Protocol 58 5 5 Modbus Protocol 77 5 6 tt TOLEDO Protocol 98 5 7 RDP Philips Protocol 99 6 Operation 101 6 1 Zeroing Operation 101 6 2 Inputting Password 101 6 3 Setting Password 103 6 4 Recover Initial Settings 103 7 Display Test 107 8 Errors and Alarm Messages 108 ...

Страница 4: ... It is widely used in concrete bitumen mixing plants blast furnace and converter etc 1 1 Functions and Features Small dimension handsome appearance easy to operate Applicable to all kinds of resistance strain gauge bridge load cell Front panel numerical calibration Multilevel of digital filter Automatic zero tracking Automatic zeroing when power up Bothway serial port RS 232 RS 485 Calibration via...

Страница 5: ...play 6 digits for displaying weight analog output value and the information of parameters Status Indicator Lamp ZERO Zero position Light up when present weight on the platform is within 0 1 4d STAB Light up when changes of weight values are within stability criterion range ...

Страница 6: ...tus key to choose the parameter items key to choose the functions of parameter setting key to enter items when setting parameters or calibration or confirm the current function 1 3 Technical Specifications 1 3 1 General Specifications Power supply DC24V 5 Working temperatures 10 40 Humidity 90 R H without dew Power about 4W Dimension 82 92 45 mm ...

Страница 7: ...when the sensor is 3mV V Input sensitivity 0 1uV d Input range 0 2 10 5mV when the sensor is 2mV V 0 02 15mV when the sensor is 3mV V A D conversion Sigma Delta A D conversion speed 120times second Non linear 0 01 F S Gain drifting 10PPM Precision 1 30000 1 3 3 Digital Part Display 6 high light red LEDs Negative data display Overflow display OFL Position of decimal point 5 options Keypad 4 beep ke...

Страница 8: ...GM8802C D Weighing Transmitter GM8802C D110101 5 1 4 Dimensions Dimension of front panel Length 82mm Width 92mm Hight 45mm ...

Страница 9: ...direct current power and the connection is as follows 2 2 Connection of Load Cell GM8802C D weighing transmitter need to be connected with bridge type resistance strain gauge load cells as below figures When you chose the four wired load cells you must bridge the SN with EX and bridge the SN with EX DC Positive pole DC Negative pole ...

Страница 10: ...itter GM8802C D110101 7 The signal definition of each port of the load cell connector as follows Port EX SN EX SN SIG SIG AGI Connection Excitation Sense Excitation Sense Signal Signal Shield 2 2 1 6 Wired Connection Load cell ...

Страница 11: ...GM8802C DWeighing Transmitter 8 GM8802C D110101 2 2 2 4 Wired Connection Load cell ...

Страница 12: ...nnecting load cells to indicator should use shielded cables and not bind with other cables especially power supply cables 2 For the application of short transporting distance and lower precision 4 wired connection can be used otherwise 6 wired should be used 3 For the application of multi load cell in parallel connection the sensitivity of each load cell mV V must be same ...

Страница 13: ...hosen as RS232 or RS485 The definition is as follows RS232 Connection RS485 Connection C o n t r o l l e r 1 A B GND C o n t r o l l e r n A B GND C o m p u t e r A B GND GND is ground of RS485 it can very much improve communication quality via connecting with GND by low resistance wire when there is a lot of disturbance in working field ...

Страница 14: ...ged Position of decimal point minimum division maximum capacity zero and gain can be set and confirmed through calibration 2 If you want to skip one parameter to next one press directly If you want to set only one parameter please press to save your desired value and then press to return normal working status 3 Please refer to page 21 3 7 Log Table for Parameter Calibration 1 for details 4 During ...

Страница 15: ... twice then display CAL press to enter password inputting interface 2 When displaying PASS press then input the correct password CAL ON displayed for one second then automatically enter Decimal position 3 Press to select a desired decimal position 0 0 0 0 00 0 000 or 0 0000 then press to save and enter next step But if no need to change press directly to enter next Min division setting interface ...

Страница 16: ...in division 1 2 5 10 20 or 50 then press to save and enter next Max capacity setting But if no need to change press directly to enter next step 5 Input Max Capacity Min Division 30000 then press to save and enter next step But if no need to change press directly to enter next step ...

Страница 17: ...lay interface 7 During normal calibration press to enter zero calibration The displaying value is close to the value got from the SIG SIG of sensor by a multimeter pls refer to definite descriptions in 17 3 3 Millivolt value display 8 Clear the platform press to finish zero calibration when STAB indicator lamp lights up and enter gain calibration If no need to zero calibrate press to enter gain ca...

Страница 18: ...Weighing Transmitter GM8802C D110101 15 Follow the below flow chart then you can finish gain calibration and enter password setting If no need to gain calibrate just press to enter next password setting interface ...

Страница 19: ... status If no need to set password just press to return to normal status 11 Weight value display interface 9 Press to enter serial ports calibration switch setting press to choose a desired position then press again to enter next step If no need to set the position of the switch just press to enter next password setting interface ...

Страница 20: ...value is still OFL or OFL the possible reasons are as follows a There is something wrong with weighing mechanism please check and clear b The connection of load cell is incorrect please check and clear c Load cells may be damaged please replace 2 Position error Test for Weighing Mechanism Load a same weight on each corner of weighing mechanism and record displayed millivolt value respectively If d...

Страница 21: ...t please record the zero millivolt value gain millivolt value and the loaded weight value in the blank table below If it is not convenient to load a weight to calibrate these values can be used for calibration without weight Zero millivolt value mV Gain millivolt value mV Weight value Date Remarks 1 2 3 4 5 ...

Страница 22: ...When it is not convenient to load a weight to calibrate calibration can be done without weight using recorded data in the table in section 3 8 However this method is just used for some emergencies it will make calibration result incorrect if load cells or indicator has been replaced ...

Страница 23: ...GM8802C DWeighing Transmitter 20 GM8802C D110101 ...

Страница 24: ... calibration switch must be ON or the command of serial ports calibration will return to errors 3 7 Log Table for Parameter Calibration 1 Symbol Parameter Value of parameter Default Pt Decimal Point 0 0 0 0 00 0 000 0 0000 0 1d Min Division 1 2 5 10 20 50 1 CP Max Capacity Min Division 30000 10000 SE Sensitivity of sensor 2 3 2 t System millivolt o Zero position ...

Страница 25: ...GM8802C DWeighing Transmitter 22 GM8802C D110101 C Gain SIOCAL Serial ports calibration switch PASS Password Setting 000000 ...

Страница 26: ...802C D Weighing Transmitter GM8802C D110101 23 3 8 Log Table for Parameter Calibration 2 Parameter Calibrated Value Data Remarks Decimal Point Min Division Max Capacity Sensor sensitivity Password Setting ...

Страница 27: ...802C D110101 4 Setting Parameter 4 1 Flow Chart of Setting Parameters 1 Press to select a desired item among sibling items 2 Press to enter minor terms Press to return to last item 3 Pls refer to below list for descriptions of parameters ...

Страница 28: ...ions Setting Method F1 Item 1 F1 1 00 99 01 Scale ID 4 2 1 F1 2 OFF ON OFF Automatic zeroing switch when power up Automatically zeroing if it is set ON Error2 Alarms if current value Max Capacity Zeroing range Error3 Alarms if the scale is not stable 4 2 2 F1 3 0 9 0 Zero tracking range 0 9d optional used to 4 2 1 ...

Страница 29: ...abled if this parameter is set 0 F1 4 1 9 1 Stability criterion range 1 9d optional If the change of weight value is within stability criterion rang then it is a stable status 4 2 1 F1 5 0 99 50 Zeroing range 0 99 of Max Capacity If the current weight Max Capacity Zeroing range then Error2 alarms 4 2 1 F1 6 0 9 5 Digital filter 0 no filter 4 2 1 ...

Страница 30: ... F1 7 0 9 0 Steady filter the second filter based on the first filter 0 no filter 9 the strongest filter 4 2 1 F2 Item 2 F2 1 1200 57600 9600 Serial port Baud rate 4 2 2 F2 2 rS rE bUS EASy SP1 t t rdP bUS Serial port protocol 4 2 2 F2 3 rEAd rEAd rEAd command mode or 4 2 2 ...

Страница 31: ...en F2 2 is set as bUS tt rdP F2 4 rtU ASC rtU rtU or ASCII Modbus protocol special communication mode Ineffective when F2 2 is set as rE rS SP1 EASy tt rdP 4 2 2 F2 5 7 E 1 7 O 1 7 n 2 8 E 1 8 E 1 Data frames format 7 E 1 7data bits Even Parity 1stop bit 7 O 1 7 data bits Odd Parity 1stop bit 7 n 2 7data bits No Parity 2 stop bits 4 2 2 ...

Страница 32: ...8data bits No Parity 1stop bit 8 n 2 8 data bits No Parity 2stop bits F2 6 nonE 10 20 30 40 50 nonE Option of serial port speed adjust the interval between two data frames when continuous sending datas nonE The interval between two data frames is the time of next byte during current baud rate 10 50 The interval between two data frames is 10 50ms 4 2 2 ...

Страница 33: ...999999 000000 9 registers available for users use system decimal point to display Read write through keys or serial ports ModBus RS SP1 4 2 1 F4 Item 4 F4 1 OFF ON OFF Switch for parameter password setting 4 2 2 F4 2 000000 Setting parameter password Effective when F4 1 ON 6 3 ...

Страница 34: ...GM8802C D Weighing Transmitter GM8802C D110101 31 4 2 Method of Setting Parameters 4 2 1 Data Input Method ...

Страница 35: ...GM8802C DWeighing Transmitter 32 GM8802C D110101 4 2 2Option Selecting Method ...

Страница 36: ...ocol Modbus protocol bus fast protocol EASy SP1 protocol tt TOLEDO rdP PHILIPS protocol 5 1 EASY Protocol Communication mode can be set as continuous mode Cont and command mode Read Data Frames 8data bits 1 stop bit Even parity 8 E 1 8data bits 1 stop bit Odd Parity 8 O 1 8data bits 1 stop bit No Parity 8 n 1 8data bits 2 stop bits No Parity 8 n 2 Baud Rate 1200 2400 4800 9600 19200 38400 56700 Op...

Страница 37: ... bytes compressed BCD code high order ahead Data Mark byte Status byte BCD1 BCD2 BCD3 Description FFH Status byte Main display the first and second bit Main display the third and fourth bit Main display the fifth and sixth bit The definition of Status byte Status byte binary system D7 D6 D5 D4 D3 D2D1D0 no zero overflow stable Plus minus current decimal position Fixed 0 0 not zero 1 zero 0 normal ...

Страница 38: ...03 refer to The definition of Status byte the corresponding hexadecimal data is 00000011 then we know current status is not zero normal stable plus current decimal point is the third bit 5 1 2 Command Mode Read Under this mode the indicator will transmit collected data to upper computer only when received command Data R CR CF Description 52H 0DH 0AH Response from the indicator The data frame is ju...

Страница 39: ...Frames 8data bits 1 stop bit Even parity 8 E 1 8data bits 1 stop bit Odd Parity 8 O 1 8data bits 1 stop bit No Parity 8 n 1 8data bits 2 stop bits No Parity 8 n 2 7data bits 1 stop bit Even parity 7 E 1 7data bits 1 stop bit Odd parity 7 O 1 7data bits 2 stop bits No parity 7 n 2 Baud Rate 1200 2400 4800 9600 19200 38400 56700 Optional Code ASCII ...

Страница 40: ...ted data to upper computer without command The data frames as follows Status GS Display value Unit CR LF Here Status 2bits 4FH 4CH OL overflow 53H 54H ST stable 55H 53H US unstable Separator GS 2bits 47H 53H 1bit 2BH 2DH Display value 7 bits include decimal point high order is a blank space when no decimal point Unit 2bits kg 4BH 67H CR 0DH ...

Страница 41: ... know the current status of indicator is Stable data is positive number current weight value is11 120kg 5 2 2 Command Mode Read Under this mode the indicator will transmit collected data to upper computer only when received command Data R E A D CR LF Description 52H 45H 41H 44H 0DH 0AH Response from the indicator The data frame is just the same as that of RE protocol s Continuous Mode ...

Страница 42: ...Frames 8data bits 1 stop bit Even parity 8 E 1 8data bits 1 stop bit Odd Parity 8 O 1 8data bits 1 stop bit No Parity 8 n 1 8data bits 2 stop bits No Parity 8 n 2 7data bits 1 stop bit Even parity 7 E 1 7data bits 1 stop bit Odd parity 7 O 1 7data bits 2 stop bits No parity 7 n 2 Baud Rate 1200 2400 4800 9600 19200 38400 56700 Optional Code ASCII ...

Страница 43: ...0 the sum is 1D6 convert it to decimal 470 then convert the last two numbers 7 0 to ASCII 37 30 5 3 1 Continuous Mode Cont Under this mode the indicator will automatically transmit collected data to upper computer without command The data frames as follows STX Status Display value CRC CR LF Here STX 1 bit start 02H Status 1bit 4DH M stable 53H S unstable 4FH O overflow 1bit 2BH 2DH Display value 7...

Страница 44: ...turns to the below data 02 4D 2B 30 31 30 2E 37 36 30 37 30 0D 0A Then we know current status is stable plus and current weight value is 10 760 5 3 2 Command Mode Read Under this mode the indicator will transmit collected data to upper computer only when received command 5 3 2 1 Reading the Current Status of GM8802C D Sending Command format ...

Страница 45: ...O CRC CR LF Here Scale ID 2bits range 00 99 R 1bit 52H S 1bit 53H 000 3bits 30H 30H 30H Status 1bit 4DH M stable 53H S unstable 4FH O overflow Display value 6bits not include decimal point high order is minus when the display value is minus N 1bit 4EH O 1bit 4FH For example Command from upper computer 02 30 31 52 53 36 34 0D 0A Correct response format 02 30 31 52 53 30 30 30 4D 2D 30 32 32 35 35 3...

Страница 46: ...ta sequence is correct STX Scale ID R P DDDDDD CRC CR LF Received data sequence is incorrect STX Scale ID R P N O CRC CR LF Here P 1bit 50H DDDDDD 6bits 000000 000004 corresponding 0 4 decimal point positions For example Command from upper computer 02 30 31 52 50 36 31 0D 0A Correct response format 02 30 31 52 50 30 30 30 30 30 33 35 32 0D 0A decimal point position is 3 that is 0 000 Incorrect res...

Страница 47: ...D R E DDDDDD CRC CR LF Received data sequence is incorrect STX Scale ID R E N O CRC CR LF Here E 1bit 45H DDDDDD 6bits 000000 000001 corresponding 2mV V 3mV V For example Command from upper computer 02 30 31 52 45 35 30 0D 0A Correct response format 02 30 31 52 45 30 30 30 30 30 30 33 38 0D 0A the sensitivity of sensor is 2mV V Incorrect response format 02 30 31 52 45 4E 4F 30 37 0D 0A ...

Страница 48: ... CRC CR LF Received data sequence is incorrect STX Scale ID R M N O CRC CR LF Here M 1bit 4DH Division value 2bits 1 2 5 10 20 50 optional Max Capacity 6bits maximum capacity value For example Command from upper computer 02 30 31 52 4D 35 38 0D 0A Correct response format 02 30 31 52 4D 30 35 30 35 30 30 30 30 35 32 0D 0A Min division value is 5 Max Capacity is 50000 Incorrect response format 02 30...

Страница 49: ... sequence is incorrect STX Scale ID R F N O CRC CR LF Here F 1bit 46H Working parameter 2 bits confirm the working parameter according to current data DDDDDD 6bits current working parameter value For example Command from upper computer 02 30 31 52 46 31 34 30 30 30 0D 0A Correct response format 02 30 31 52 46 31 34 30 30 30 30 30 30 35 39 33 0D 0A Working parameter 1 4 range of motion detecting is...

Страница 50: ... C C O K CRC CR LF Received data sequence is incorrect STX Scale ID C C N O CRC CR LF Here C 1bit 43H K 1bit 4BH For example Command from upper computer 02 30 31 43 43 33 33 0D 0A Correct response format 02 30 31 43 43 4F 4B 38 37 0D 0A Incorrect response format 02 30 31 43 43 4E 4F 39 30 0D 0A 5 3 2 7 Calibration 1 Calibration the Decimal Point Position Sending Command format ...

Страница 51: ...F Here P 1bit 50H Decimal point position 1bit range 0 4 For example Command from upper computer 02 30 31 43 43 33 33 0D 0A Correct response format 02 30 31 43 43 4F 4B 38 37 0D 0A Incorrect response format 02 30 31 43 43 4E 4F 39 30 0D 0A 2 Calibration the Division value and Max Capacity Sending Command format STX Scale ID C M Division value Max Capacity CRC CR LF Received data sequence is correct...

Страница 52: ...d from upper computer 02 30 31 43 4D 30 35 30 31 34 30 30 30 33 37 0D 0A Writing data division value is 5 Max capacity is 14000 Correct response format 02 30 31 43 4D 4F 4B 39 37 0D 0A Incorrect response format 02 30 31 43 4D 4E 4F 30 30 0D 0A 3 Calibration the Sensitivity of Sensor Sending Command format STX Scale ID C E Sensitivity of Sensor CRC CR LF Received data sequence is correct STX Scale ...

Страница 53: ...ting data sensitivity of sensor is 0 that is 2mV V Correct response format 02 30 31 43 45 4F 4B 38 39 0D 0A Incorrect response format 02 30 31 43 45 4E 4F 39 32 0D 0A 4 Zero Calibration 1 Zero Calibration with Standard Weight Sending Command format STX Scale ID C Z CRC CR LF Received data sequence is correct STX Scale ID C Z O K CRC CR LF Received data sequence is incorrect STX Scale ID C Z N O CR...

Страница 54: ... 4B 31 30 0D 0A Incorrect response format 02 30 31 43 5A 4E 4F 31 33 0D 0A 2 Zero Calibration without Standard Weight Sending Command format STX Scale ID C Y Zero millivolt value CRC CR LF Received data sequence is correct STX Scale ID C Y O K CRC CR LF Received data sequence is incorrect STX Scale ID C Y N O CRC CR LF Here Y 1bit 59H Zero millivolt value 6bits For example ...

Страница 55: ...mat 02 30 31 43 59 4E 4F 31 32 0D 0A 5 Gain Calibration 1 Zero Calibration with Standard Weight Add a standard weight approaching 80 of the Max capacity then write in the current value of the standard weight to finish gain calibration Sending Command format STX Scale ID C G Weight value CRC CR LF Received data sequence is correct STX Scale ID C G O K CRC CR LF Received data sequence is incorrect S...

Страница 56: ...31 43 47 4F 4B 39 31 0D 0A Incorrect response format 02 30 31 43 47 4E 4F 39 34 0D 0A 2 Zero Calibration without Standard Weight Input the standard weight value in Appendix and the corresponding gain Millivolt value to finish gain calibration Sending Command format STX Scale ID C L Millivolt value Weight value CRC CR LF Received data sequence is correct STX Scale ID C L O K CRC CR LF Received data...

Страница 57: ...34 0D 0A writing data the weight value is 200 corresponding gain millivolt value is 0 194 Correct response format 02 30 31 43 4C 4F 4B 39 36 0D 0A Incorrect response format 02 30 31 43 4C 4E 4F 39 39 0D 0A 5 3 2 8 Writing Working Parameter Sending Command format STX Scale ID W F Working parameter item 0 Parameter value CRC CR LF Received data sequence is correct STX Scale ID W F O K CRC CR LF Rece...

Страница 58: ...31 57 46 31 34 30 30 30 30 30 30 35 39 38 0D 0A write in range of motion detecting F1 4 is 5 Correct response format 02 30 31 57 46 4F 4B 31 30 0D 0A Incorrect response format 02 30 31 57 46 4E 4F 31 33 0D 0A 5 3 2 9 Reading Register 1 9 Sending Command format STX Scale ID R R Parameter 0 CRC CR LF Received data sequence is correct STX Scale ID R R Parameter 0 DDDDDD CRC CR LF Received data sequen...

Страница 59: ...t 02 30 31 52 52 33 31 30 30 30 30 35 30 30 30 34 0D 0A Incorrect response format 02 30 31 52 52 4E 4F 32 30 0D 0A 5 3 2 10 Writing Register 1 9 Sending Command format STX Scale ID W R Parameter 0 DDDDDD CRC CR LF Received data sequence is correct STX Scale ID W R O K CRC CR LF Received data sequence is incorrect STX Scale ID W R N O CRC CR LF Here Parameter 2bits 33H 31H 33H 39H represents readin...

Страница 60: ...t response format 02 30 31 57 52 4E 4F 32 35 0D 0A 5 3 3 CRC Check sum Count of RS Protocol Count the sum of all the left bytes and convert the sum to a decimal data and then convert the last 2 low order digits of the decimal date to ASCII code For example See below data frame 02 30 31 43 47 4F 4B 39 31 0D 0A Check bit The sum 187 Hex 391 decimal data Then work out the check code of the above data...

Страница 61: ...Frames 8data bits 1 stop bit Even parity 8 E 1 8data bits 1 stop bit Odd Parity 8 O 1 8data bits 1 stop bit No Parity 8 n 1 8data bits 2 stop bits No Parity 8 n 2 7data bits 1 stop bit Even parity 7 E 1 7data bits 1 stop bit Odd parity 7 O 1 7data bits 2 stop bits No parity 7 n 2 Baud Rate 1200 2400 4800 9600 19200 38400 56700 Optional Code ASCII ...

Страница 62: ...libration O zeroing 5 4 1 Explanation form for parameter code Operation code Parameter code Parameter name Characters R WT Reading current status and weight value 8 W DC Writing Max capacity and Min division 8 R W PT Decimal point digits 1 R W SE Sensitivity of sensor 1 R DD Min division 2 R CP Max capacity 6 ...

Страница 63: ...g switch 1 R W TR Range of Zero Tracking 1 R W MR Range of motion detecting 1 R W ZR Range of zeroing 2 R W FL Digital filter parameter 1 R W VC Steady state filter 1 R W R 1 R 9 Register 1 9 6 R AM Absolute Millivolt value 7bits D6D5D4D3D2D1D0 D6 D5 D0 ASCII code of 6bits ...

Страница 64: ...llivolt value Decimal point 4bits R RM Millivolt value of relative zero 7bits D6D5D4D3D2D1D0 D6 D5 D0 ASCII code of 6bits corresponding Millivolt value Decimal point 4bits C ZY Zero calibration with weight C ZN Zero calibration without weight 6 C GY Gain calibration 6 ...

Страница 65: ... Explanation form for wrong code Under communication mode if the transmitter received wrong data frame there will be a wrong code as below 1 CRC check error 2 Operation code error 3 Parameter code error 4 Writing data error 5 Operation can t be performed 6 channel number error Remark the default channel number is 1 31H ...

Страница 66: ...ight value CRC CR LF Here STX 1bit Start 02H Scale ID 2bits range is 00 99 Status 2bits High Byte 40H The definition of Low Byte is as below D6 D5 D4 D3 D2 D1 D0 no definition no definition no definition plus minus zero overflow stable fixed 1 fixed 0 fixed 0 0 plus 1 minus 0 not zero 1 zero 0 normal 1 overflow 0 stable 1 unstable Weight value 6bits return to blank space blank space OFL blank spac...

Страница 67: ...37 38 0D 0A Then we know the current status of indicator is Stable weight value is plus and 2 165 5 4 4 Command Mode Read Under this mode the indicator will transmit collected data to upper computer only when received command 5 4 4 1 Reading the current status of transmitter Sending Command format STX Scale ID Channel NO R WT CRC CR LF Received data sequence is correct ...

Страница 68: ...t 02H R 1bit 52H WT 2bits 57H 54H E 1bit 45H Status 2bits High Byte 40H The definition of Low Byte is as below D6 D5 D4 D3 D2 D1 D0 no definition no definition no definition plus minus zero overflow stable fixed 1 fixed 0 fixed 0 0 plus 1 minus 0 not zero 1 zero 0 normal 1 overflow 0 stable 1 unstable Display value 6bits return to blank space blank space OFL blank space when the weight value is pl...

Страница 69: ...ay is 0 132 Incorrect response format 02 30 31 31 52 57 54 45 31 31 39 0D 0A 5 4 4 2 Reading other Parameter Sending Command format STX Scale ID Channel NO R Parameter code CRC CR LF Received data sequence is correct STX Scale ID Channel NO R Parameter code Parameter value CRC CR LF Received data sequence is incorrect STX Scale ID Channel NO R Parameter code E Wrong code CRC CR LF Parameter value ...

Страница 70: ... 02 30 31 31 52 4D 52 35 34 32 0D 0A range of motion detecting 5 Incorrect response format 02 30 31 31 52 4D 52 45 31 30 37 0D 0A 5 4 4 3 Writing Max Capacity and Min Division Sending Command format STX Scale ID Channel NO W DC Division value Max capacity CRC CR LF Received data sequence is correct STX Scale ID Channel NO W DC O K CRC CR LF Received data sequence is incorrect STX Scale ID Channel ...

Страница 71: ...ax capacity is 10000 Correct response format 02 30 31 31 57 44 43 4F 4B 32 34 0D 0A Incorrect response format 02 30 31 31 57 44 43 45 35 39 32 0D 0A 5 4 4 4 Writing Max Capacity and Min Division Sending Command format STX Scale ID Channel NO W Parameter code Parameter value CRC CR LF Received data sequence is correct STX Scale ID Channel NO W Parameter code O K CRC CR LF Received data sequence is ...

Страница 72: ...36 31 0D 0A Incorrect response format 02 30 31 31 57 5A 52 45 31 32 35 0D 0A 5 4 4 5 Zero Calibration 1 Zero Calibration with Standard Weight Sending Command format STX Scale ID Channel NO C ZY CRC CR LF Received data sequence is correct STX Scale ID Channel NO C ZY O K CRC CR LF Received data sequence is incorrect STX Scale ID Channel NO C ZY E Wrong code CRC CR LF Here Z 1bit 5AH Y 1bit 59H For ...

Страница 73: ...t STX Scale ID Channel NO C ZN Zero millivolt CRC CR LF Received data sequence is correct STX Scale ID Channel NO C ZN O K CRC CR LF Received data sequence is incorrect STX Scale ID Channel NO C ZN E Wrong code CRC CR LF Here ZN 2bits 5AH 4EH Zero millivolt 6bits decimal point fixed 4 For example Command from upper computer 02 30 31 31 43 5A 4E 30 31 32 36 31 30 38 31 0D 0A Correct response format...

Страница 74: ...bration Sending Command format STX Scale ID Channel NO C GY Weight value CRC CR LF Received data sequence is correct STX Scale ID Channel NO C GY O K CRC CR LF Received data sequence is incorrect STX Scale ID Channel NO C GY E Wrong code CRC CR LF Here GY 2bits 47H 59H Weight value 6bits write in the standard weight value For example Command from upper computer 02 30 31 31 43 47 59 30 30 30 32 30 ...

Страница 75: ...orresponding gain Millivolt value to finish gain calibration Sending Command format STX Scale ID Channel NO C GN Gain millivolt Weight value CRC CR LF Received data sequence is correct STX Scale ID Channel NO C GN O K CRC CR LF Received data sequence is incorrect STX Scale ID Channel NO C GN E Wrong code CRC CR LF Here Gain millivolt 6bits corresponding gain millivolt value of standard weight deci...

Страница 76: ... format 02 30 31 31 43 5A 52 45 33 30 37 0D 0A 5 4 4 7 Zeroing Operation Sending Command format STX Scale ID Channel NO O CZ CRC CR LF Received data sequence is correct STX Scale ID Channel NO O CZ O K CRC CR LF Received data sequence is incorrect STX Scale ID Channel NO O CZ E Wrong code CRC CR LF For example Command from upper computer 02 30 31 31 4F 43 5A 38 34 0D 0A Correct response format 02 ...

Страница 77: ...ncorrect STX Scale ID R Parameter code N O CRC CR LF Here Parameter code 2bits R1 R9 refer to parameter address of registers to write in parameter codes for example write in register F3 3 then the parameter code is R3 52H 33H For example Command from upper computer 02 30 31 52 52 31 31 32 0D 0A reading register F3 1 Correct response format 02 30 31 52 52 31 30 30 30 35 30 30 30 35 0D 0A Incorrect ...

Страница 78: ...rrect STX Scale ID W Parameter code N O CRC CR LF Here Parameter code 2bits R1 R9 refer to parameter address of registers to write in parameter codes for example write in register F3 3 then the parameter code is R3 52H 33H For example Command from upper computer 02 30 31 57 52 31 30 30 30 35 30 30 30 31 0D 0A writing register F3 1 500 Correct response format 02 30 31 57 52 31 4F 4B 37 31 0D 0A Inc...

Страница 79: ...ytes and convert the sum to be a decimal data and then convert the last 2 low order digits of the decimal date to ASCII code For example See below data frame 02 30 31 31 4F 43 5A 38 34 0D 0A Check bit The sum 180 Hex 384 decimal data Then w ork out t he check code oft he above dat a fram e i s 38 34 ...

Страница 80: ... of the message are divided into 2pcs of 4 bit hexadecimal characters to transmit at binary code The data frame as below Data Frames 8data bits 1 stop bit Even parity 8 E 1 8data bits 1 stop bit Odd Parity 8 O 1 8data bits 1 stop bit No Parity 8 n 1 8data bits 2 stop bit No Parity 8 n 2 Baud Rate 1200 2400 4800 9600 19200 38400 56700 Optional ...

Страница 81: ...s 2 pcs of ASCII characters The data frame Data Frames 8data bits 1 stop bit Even parity 8 E 1 8data bits 1 stop bit Odd Parity 8 O 1 8data bits 1 stop bit No Parity 8 n 1 8data bits 2 stop bit No Parity 8 n 2 7 data bits 1 stop bit Even parity 7 E 1 7 data bits 1 stop bit Odd parity 7 O 1 7 data bits 2 stop bit No Parity 7 n 2 ...

Страница 82: ...ess PLC address Display address Explanation Below Contents are Read Only Register function code is0x03 40001 0000 Current weight value 4 bytes with sign digits high order ahead 40002 0001 40003 0002 D15 D14 D4 D3 D2 D1 D0 0 0 plus 0 not zero 0 normal 0 stable 1 minus 1 zero 1 overflow 1 unstable 40004 40007 0003 0006 Reserve allow reading out read out 0 ...

Страница 83: ...OFF 1 ON 40009 0008 Range of Zero Tracking 0 9 40010 0009 Range of motion detecting 1 9 40011 0010 Range of zeroing 0 99 40012 0011 Filter Level 0 9 40013 0012 Steady status filter 0 9 40014 40016 0013 0015 Reserve read out 0 only for later update 40017 0016 Position of decimal point 0 4 40018 0017 Min division value 0 5 represents 1 2 5 10 20 50 40019 0018 Sensor sensitivity 0 1 represents 2mV V ...

Страница 84: ...nge of Millivolt value is 0 000 9 000mV sensor sensitivity is 3 m V V Range of Millivolt value is 0 000 13 000mV 40021 0020 Zero calibration without weight input zero Millivolt value Input range is Sensor sensitivity is 2 m V V Range of Millivolt value is 0 001 9 000mV sensor sensitivity is 3 m V V Range of Millivolt value is 0 001 13 000mV 40022 40030 0021 0029 Reserve read out 0 ...

Страница 85: ... 30000 40033 0034 0032 0033 Gain calibration with weight Input standard weight value Max capacity 40035 40036 0034 0035 Gain calibration without weight Input gain Millivolt value sensor sensitivity is 2mV V 0 000 millivolt value 10 000mV zero millivolt value Sensor sensitivity is 3mV V 0 000 millivolt value 15 000mV zero millivolt value 40037 40038 0036 0037 Gain calibration without weight Input g...

Страница 86: ...Below are Read Only Contents function code 0 x 0 1 00041 0040 0 Stable 1 Unstable 00042 0041 0 Normal 1 Overflow 00043 0042 0 Not zero 1 Zero 00044 0043 0 1 00045 00056 0044 0055 Reserve read out 0 Write and Read Contents Reading function code 0x01 Writing function code 0x05 00057 0056 Zeroing input FF00 zeroing return to 0 when reading coil 0 ...

Страница 87: ...e Coil Query Query information assigns the starting coil and the quantity of coil Response 1 Each status of the coil corresponds to each data 1 ON 0 OFF The LSB Least Significant Bit of the first byte is the start address during query the other coils are arranged from low bit to high bit till the eighth coil the next byte is also arranged from low bit to high bit 2 If the return coil is not the mu...

Страница 88: ...ss Function Code Start Address The Number of Coils CRC Check 1 byte 1 byte 2 bytes 2 bytes 2 bytes Received data sequence is correct Transmitter Address Function Code Counting Byte Data District CRC Check 1 byte 1 byte 1 byte 1 byte 2 bytes Query command 01 01 00 28 00 04 BD C1 Received data sequence is correct 01 01 01 02 D0 49 The corresponding status of coil 43 40 0 0 1 0 ...

Страница 89: ...rs 2 characters 4 characters 4 characters 2 characters 2 characters Received data sequence is correct Start Transmitter Address Function Code Counting Byte Data District LRC Check End 1 character 2 characters 2 characters 2 characters 2 characters 2 characters 2 characters Query command 3A 30 31 30 31 30 30 32 38 30 30 30 34 44 32 0D 0A Received data sequence is correct 3A 30 31 30 31 30 31 30 32 ...

Страница 90: ...ters Response Response information assigns the byte number of the reading register each register corresponds to 2 bytes there is also the data value of each reading register in the response information For example Reading register 0007 0008 1 Under RTU Mode Query command Transmitter Address Function Code Start Address Query the number of Registers CRC Check 1 byte 1 byte 2 bytes 2 bytes 2 bytes ...

Страница 91: ...8 Data CRC Check 1byte 1byte 1byte 2bytes 2bytes 2bytes Query command 01 03 00 07 00 02 75 CA Received data sequence is correct 01 03 04 00 00 00 05 3A 30 The data for Register 0007and Register 0008 0 Hex 0000H 5 Hex 0005H 2 Under ASCII Mode Query command Start Address Transmitter Address Function Code Start Address Query the number of Registers LRC Check End ...

Страница 92: ...ister 0008 0 Hex 0000H 5 Hex 0005H 05 Force single coil Query Query information assigns the address of the coil that need to be forced A constant in query data district the ON OFF status for the requested coil FF00 value for ON status 0000H value for OFF status Other value is ineffective to the coils Response The coil being force status returns to normal response Start Transmitter address Function...

Страница 93: ...s Function Code Coil Address Forced Data CRC Check 1 byte 1 byte 2 bytes 2 bytes 2 bytes Received data sequence is correct Transmitter Address Function Code Coil Address Forced Data CRC Check 1 byte 1 byte 2 bytes 2 bytes 2 bytes Force command 01 05 00 38 FF 00 0D F7 Received data sequence is correct 01 05 00 38 FF 00 0D F7 The coil 056 is set to be ON status ...

Страница 94: ...30 31 30 35 30 30 33 38 46 46 30 30 43 33 0D 0A The coil 056 is set to be ON status Start Transmitter address Function code Coil address Forced data LRC check End 1 character 2 characters 2 characters 4 characters 4 characters 2 characters 2 characters Start Transmitter address Function code Coil address Forced data LRC check End 1 character 2 characters 2 characters 4 characters 4 characters 2 ch...

Страница 95: ... The register returns to normal response after presetting For example Please preset register 0009 of transmitter NO 1 to 0005H 1 Under RTU Mode Preset command Transmitter Address Function Code Preset Register Address Preset Value CRC Check 1 byte 1 byte 2 bytes 2 bytes 2 bytes Correct response Transmitter Address Function Code Preset Register Address Preset Value CRC Check ...

Страница 96: ...2 Under ASCII Mode Preset command Correct response Start Transmitter address Function code Preset register address Preset value LRC check End 1 character 2 characters 2 characters 4 characters 4 characters 2 characters 2 characters Start Transmitter address Function code Preset register address Forced data LRC check End 1 character 2 characters 2 characters 4 characters 4 characters 2 characters 2...

Страница 97: ... start address and value of the register need to be preset Response Normal response and return to the transmitter address function code start address and the number of preset registers For example Put preset value into 2 registers of Transmitter NO 1 the start register is 0030 preset values are 0001H and 7318H 1 Under RTU Mode Correct response Transmitter address Function code Start address The nu...

Страница 98: ...de Start address The number of registers CRC check 1byte 1byte 2bytes 2bytes 2bytes Start Transmitter address Function code Start address The number of registers Counting byte Preset value LRC check END 1 characte r 2 Character s 2 Character s 4 charact ers 4 character s 2 character s 8 character s 2 character s 2 character s Start Transmitter address Function code Start address The number of regi...

Страница 99: ... is 1 It means that the function code which is sent by transmitter is 128 more than the function code which is sent by host for example reading register command 03H will be changed to 83H Abnormal code 02 illegal data address the received data address is the unallowed address of transmitter 03 illegal data the value of query data field is the unallowed value of transmitter For example The upper co...

Страница 100: ...F1 2 Under ASCII mode Query command 3A 30 31 30 33 30 30 32 38 30 30 30 31 44 33 0D 0A The response of receiving data incorrectly 3A 30 31 38 33 30 32 37 41 0D 0A Refer to the data frames the current wrong code is 02 The current data address is illegal means Transmitter address Function code Abnormal code CRC check 1byte 1byte 1byte 2bytes Start Transmitter address Function code Abnormal code LRC ...

Страница 101: ...sends data trough tt TOLEDO protocol The continuous mode Cont format of tt protocol as following 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 STX CR A B C Display weight 6bits 6 pcs 30H check sum Here ASCII Start character 02 STX Status Word A is defined as following D 0 0 1 0 1 0 D1 1 1 0 0 1 D2 0 0 1 1 1 Decimal point position x x xx xxx xxxx D3 D5 1 invariant D4 D6 0 invariant D7 Even parity 7 ...

Страница 102: ...ocol Please refer to parameter F2 2 and choose RDP protocol under this status the transmitter will continuously sends data trough RDP protocol Every sending delay is the value of F2 6 ms Data frame Here STX Start 02H MODE Communication mode 31H means gross weight STATU 2Byte status byte Weight Display weight 6 bits may include minus sign or blank space ETX 03H STATUS explanation STX MODE STATU Wei...

Страница 103: ...3 E 1 error or overflow 2 T 0 1 S 1 stable 0 unstable 0 Z 1 zero 0 not zero STATUS 2 nd Bit Status 6 Fixed 0 5 Fixed 1 4 Fixed 1 3 M Fixed 1 2 K 0 1 DD DD 00 11 corresponding decimal point position 0 1 2 3 sending 3 when the decimal point position 3 0 Note The weight value is when the weight is in error or overflows ...

Страница 104: ...during zeroing Error 2 alarms when current weight value zeroing range during zeroing operation Error 3 alarms when current weight display or system is not stable during zeroing operation 6 2 Inputting Password 1 The initial password for calibration and parameter setting is 000000 2 According to relevant standard calibrated parameters are protected by password ...

Страница 105: ...ng Transmitter 102 GM8802C D110101 calibration password must be input before calibration 3 During parameter setting if F4 1 password switch is set as ON password must be input when entering parameter setting interface ...

Страница 106: ...transmitter will return to the third inputting password interface but the display will turn to from 3 If the password your entered for the third time is still incorrect GM8802C D will display Error 4 and enter self locking status then you must power up again to operation 6 3 Setting Password 1 There are setting parameter items both during calibration and working parameters if need to set password ...

Страница 107: ...ansmitter 104 GM8802C D110101 input twice and the two inputting passwords are same If the two inputting passwords are not same the GM8802C D will display Error for one second then return to password setting interface PASS ...

Страница 108: ...working status press one time to display SET UP then meanwhile press and to display PASS on the main display 2 When displaying PASS press to enter password setting status 3 Input the special password 880202 for recovering initial settings Press and to set values then press to save password and enter recovering working parameters interface 4 On this interface press to switchover the content need to...

Страница 109: ...values Press if you want to abandon recovering operation and return to weighing status Note 1 Under F SET interface press to recover working parameter settings start recovering initial settings 2 Under F CAL interface press to recover parameter calibration 3 Under F ALL interface press to recover all parameter settings ...

Страница 110: ...ghing Transmitter GM8802C D110101 107 7 Display Test Under normal status display test is shown in flow chart below If the test result is the same as flow chart it means that display and indicator lamps all work well ...

Страница 111: ...within the zeroing range when zeroing Error 3 The current weight value display system is not stable when zeroing Error 4 Password input is incorrect for 3 times OFL Weighing result is positive overflow OFL Weighing result is negative overflow OVER The output signal of load cell is too large while doing zero calibration UNDER The output signal of load cell is too small while doing zero calibration ...

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Содержание GM8802C-D

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