General Measure GMT-X4 User Manual

Weighing transmitter
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GMT-X4
User's Manual
110611040002
V01.00.08

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Summary of Contents for General Measure GMT-X4

  • Page 1 GMT-X4 User’s Manual 110611040002 V01.00.08...
  • Page 2 Copyright © Shenzhen General Measure Technology Co., Ltd. All RightsReserved. Without the permission of Shenzhen General Measure Technology Co., Ltd. no unit or individual shall copy, transmit, transcribe or translate into other languages in any form or by any means.
  • Page 3: Table Of Contents

    让称重触手可及 Making Weighing More Accessible Content 1. General Description......................- 1 - 1.1 Functions and Characteristics ................- 1 - 1.2 Technical Specifications ..................- 1 - 2. Panels and buttons ......................- 2 - 2.1 Front Panel Description ..................- 2 - 2.2 Key specification ....................
  • Page 4 让称重触手可及 Making Weighing More Accessible 10.2.1 Receive test ................... - 26 - 10.2.2 Send Test ....................- 26 - 11. Communication protocol and address ................ - 27 - 11.1 Modbus protocol ....................- 27 - 11.1.1 Function code and and exception code description ....... - 27 - 11.1.2 Communication Mode ................
  • Page 5: General Description

    1. General Description 1.1 Functions and Characteristics Rail mounted(National standard 35mm card rail), stainless steel Shell type housing Display 160*128 1.96” white light OLED Language Support Chinese, English Preset point 8 - way comparator 5 comparison methods are optional function Support combination mode and independent mode.
  • Page 6: Panels And Buttons

    LAN:Communication indicator. This indicator blinks during network port communication or bus communication. ➢ CAN: Communication indicator blinks when CAN communicate. 2.2 Key specification GMT-X4 has 6 button functions, short press and long press have differences, button diagram is shown as below: Interface Short press Long press...
  • Page 7 Gross/Net mode shift:gross/net Main Tare /Clear tare mode Menu interface Next Sub Parameter Data input Data or letter-1 Menu interface Next Sub Parameter Main Check the tare value Quick set tare,set tare value Menu interface Previous main parameter / Input position move to Data input left Option select...
  • Page 8: Installation And Wiring

    GMT-X4 weighing transmitter connects with DC24V power supply as follows: NOTE:The transmitter uses DC24V power supply, use AC220V power will cause permanent damage to the transmitter. 3.2 Connection of Load Cell GMT-X4 weighing transmitter connects with bridge type resistance strain gauge load cells:(Note:n=1,2,3,4) PORTS EXn+ SNn+...
  • Page 9: Connection Of I/O Terminal

    3.3 Connection of I/O Terminal GMT-X4 weighing transmitter I/O module is an optional interface function,need to declare before order, 4 IN 8 OUT,Standard IO input, output connector factory default low level is valid. Adopt transistor output mode, each drive current 200mA.
  • Page 10: Serial Port Connection

    3.4 Serial port connection GMT-X4 are configured with two serial ports: one RS485 port and one RS232 port. RS232 connection mode: RS485 connection mode: ※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.
  • Page 11: Netcom Connection

    ○ Check whether the communication protocols is consistent with the host computer and PLC. ○ Verify that GMT-X4 can be pinged from the network, if not, check the hareware interface section. ○ Check whether IP address conflicts exist ○...
  • Page 12: Menu Review

    4 Menu Review Independent Mode Menu Combo Mode Menu Parameters selection and setting Parameters selection: (Taking the parameter item of tare operation switch for four channel instrument selection in independent mode as an example) - 8 -...
  • Page 13 Parameter value Setting:(Set PWR-On Zero reset range from 49% to 30%) ※ After setting completed, press ENT key,finish the parameter setting. ※ When setting,press ESC key,exits current parameter item entry. ※ Refer to the 2nd chapter to the specific meaning of the key【Key specification】...
  • Page 14: Basic Parameter

    5. Basic Parameter 5.1 Content Parameter Item Default Decription Set CH1~4 or combo channels Zero Mode 1. Zero Operation Parameter Range:0~101(✕full range %); 1.1 PWR-On 0:turn off PWR-On Zero; 1-100:according Indep/Combo Zero full range 1-100% zeroing;101:reset to last zero before turn off. After set ON, the zeroing operation can be carried out through the communication 1.2 Remote Zero...
  • Page 15: Tare Function

    turned off.When the parameter is non-0, if the weight change is within the range, then the steady-state filter is started Range: 50; 60; 100; 120; 200; 240; 400; 4.3 Sample Rate Indep/Combo 480;800;960(SPS) 5. Sensor Signal Set CH1~4 signal range Range:0-5mV;0-10mV;0-15mV;-5- 5mV;-10-10mV;-15-15mV, Transmitter 5.1-5.4 CH1-4...
  • Page 16: Calibration

    6. Calibration When GMX-T4 weight transmitter or any part of the weighing system is changed for the first time and the current equipment calibration parameters can’t meet the user’s requirements, the display shall be calibrated. Calibration can determine the system zero and gain of the weighing system.
  • Page 17 Reset CH 1-4/ The calibration parameters of each channel are or combo restored to factory Settings, and the reset is successful channels by pressing the [ENT] confirm key. In combo mode, set channel combinations. Press the switch button  to select the corresponding Senseor channel combination.
  • Page 18 Auto Proof 0.2388mV CH-1 WT: CH-2 0.1288mV 00.1022mV 0.4838mV CH-3 00.1623mV 0.1288mV CH-4 00.2103mV 00.1175mV L-Press ENT Zero CAL Key In mV: User need key in voltage value of ZERO point to calibrate ZERO. In combo mode, manually calibrate the zero point through the 【One Key In mV】parameter. If a certain sensor channel is inaccurate, the corresponding channel zero can be calibrated through 【Key In mV】.
  • Page 19: Cal Instructions

    Weight CP 1 Weight CP 1 Weight Cal OK 000100 Multi-point calibration attention: 1) User can choose the number of marking points, such as single point calibration, which can be withdrawn after the first weight point is calibrated 2) Cross-point calibration is not allowed. For example, when using 3-point calibration, it is necessary to calibrate the Weight CP1, 2 and 3, but it is not possible to calibrate the Weight CP3 and 4 by crossing the Weight CP2 after the completion of the Weight 3)...
  • Page 20: Weight Cal Steps

    weights (i.e. theory CAL). 6.5.1 Weight CAL Steps CAL Zero: First, perform zero calibration. There are two methods for zero calibration, which CAL Zero can be referred to in section Through the [ Auto Capture ] method: In indep mode, it is necessary to separately zero calibration of each channel press button in the [Auto Capture] mode;...
  • Page 21: Application Setting

    7.Application setting 7.1 Input Config Input port configuration in the application parameter item. The transmitter is equipped with 4 input interfaces and 8 output interfaces, which can meet the function of 4 in and 8 out I/O. The application function of input port 1~4 and the shaking time can be separately set. The initial default function is not available, and the customer can define it by himself.
  • Page 22: Output Config

    In the comparator configuration, can set the comparison channel 1~8, comparison mode, comparison condition, ON COND. and OFF COND. GMT-X4 provides 8 comparators,the parameters are 3.1 to 3.8. The parameters of each comparator are set in the following table. Comparator 1 is used as an example.
  • Page 23: Application Example

    This parameter is visible in independent mode.Which channel is COMP CH compared: CH1,CH2,CH3,CH4.default:CH1 Weight judgment: Optional:OFF;OFF;W<=CV1;W=CV1;W!=CV1;W>=CV1;CV1<= COMP Mode W<=CV2; W <[CV1,CV2]>W ※If current weight is NET, the weight is NET, if current weight is gross weight, the weight is gross weight. Higher priority comparison value.
  • Page 24 3) COMP Value-1 Set to: 200. 4) COMP Value-2 is set to: 500 (this setting value should be greater than comparison value 1). 5) ON COND. set to: delay output. 6) TRUE JudgeT: 5ms. 7) OFF COND. set to: delay output. 8) FALSE HoldT: 5ms.
  • Page 25: Analog Parameter

    8.Analog Parameter In the independent mode of GMT-X4, up to 4 analog output functions can be optional (for four channel instruments), with each channel corresponding to one analog output. For details about analog port connections, see Chapter 3.7. The analog parameters corresponding to CH 1 to 4 are as follows: 8.1 Analog parameter description...
  • Page 26 - 22 -...
  • Page 27: Communication

    9. Communication GMT-X4 has various communication function interfaces : COM-1 (RS485 ) ,COM- 2(RS232),Commom NetCOM(support TCP/IP protocol) ,CAN communication port and the bus port(support Profinet, Ethernet-IP,EtherCAT and CC-Link IE Field Basic bus protocol). 9.1 Communication Parameters Parameters Initial value Specification...
  • Page 28 parameter”, when transmitter power on main site“module parameter” setting parameter auto write OFF:PN/EIP/CCLink IEF Basic communicate, transmitter parameter not control by main site”module parameter” PLC display type choose switch. Range: Int weight, Data type Float weight Float weight, Float Voltage,AD Code EtherCAT Option: OFF, ON.
  • Page 29: Maintenance

    10. Maintenance Parameters Specification Default:Indep mode;Optional: Indep mode ,Combo mode. The indep mode can view the weight and related parameters of the four channels used, while the combo mode requires selecting at least two channels for 1.Mode combination. After combination use, the weight value is the sum of the selected channel weight values/the number of combined channels, and the sensor voltage value is the sum of the selected channel sensor voltage values/the number of combined channels.
  • Page 30: Serial Port Test

    Output test: ※Under the test state of the output port, press ENT to switch the external output state. ※External state can be converted with ENT key switch, port is indicating that the output normally connected. ※After the test is complete, press ESC key to exit the output test state. 10.2 Serial Port Test Serial port test function, in a fixed baud rate (9600), data format (8-N-1) to send and receive data, to detect the serial port connection status.
  • Page 31: Communication Protocol And Address

    11. Communication protocol and address 11.1 Modbus protocol 11.1.1 Function code and and exception code description Function code Function Item Specification code Read register A maximum of 125 registers can be read at a time Write a single register This transmitter command only supports writing to the Write multiple double register.
  • Page 32 40005-40006 0004-0005 CH3 current display weight value (4-byte signed integer) 40007-40008 0006-0007 CH4 current display weight value (4-byte signed integer) Specification Reserved Load cell power short circuit(EXn+EXn- short circuit) Load cell upplugged ※ Indicates Reserved the weight status. When it Weight is calculated using theoretical is the current...
  • Page 33 40063-40064 0062-0063 CH4 gross weight value( 4-byte signed floating point type) 40065-40066 0064-0065 CH4 net weight value( 4-byte signed floating point type) 40067-40068 0066-0067 CH4 tare value( 4-byte signed floating point type) bipolar-direct data; polar-no direct 40069-40070 0068-0069 CH1 after fliter AD internal code data 40071-40072 0070-0071...
  • Page 34 weight status of the Calculate the weight using theoretical values meter When it is the ADC failure current status, the Currently showing net weight status bit displays "1" Millivolts stable If the current weight Sensor negative overflow is zero and stable, the Sensor positive overflow address D0D1 status Weight negative overflow...
  • Page 35 Reserve Remote tare operation is not ON. Remote tare operation is allowed to be ON/OFF Fobid Tare Tare Err OFL When Tare -OFL When Tare Non Stable When Tare NET state not allow ZERO Remote ZERO ON/OFF is not ON for remote ZERO Loadcell Over when ZERO.
  • Page 36 40223-40224 0222-0223 Digit-Filter Range:0-9, Initial value:4 40225-40226 0224-0225 Adv. Filter Range:0-99d,Initial value:0 Range:0-9( 0-50;1-60;2-100;3- 120;4-200;5-240;6-400;7-480;8- 40227-40228 0226-0227 AD Sample Rate 800;9-960) Initial value:4-200 Range:0-5( 0:0-5mV;1:0-10mV; 40229-40230 0228-0229 Signal Range 2:0-15mV; 3:-5-5mV;4:-10-10mV;5:- 15-15mV) )Initial value:1(0-10mV) 40231~40300 0230~0299 Reserve 40301-40330 0300-0329 Refer CH1 Parameter area 40331~40400 0330~0399 Reserve 40401-40430...
  • Page 37 data write data with 5 decimal point. Range: 0.00001-9.99999,default:1.00000. 40631-40632 0630-0631 Angle Correct Coef 1 Default: 100000, readable and writable 40633-40634 0632-0633 Angle Correct Coef 2 Default: 100000, readable and writable 40635-40636 0634-0635 Angle Correct Coef 3 Default: 100000, readable and writable 40637-40638 0636-0637 Angle Correct Coef 4...
  • Page 38 20-CH4 GROSS/NET, 21- COMP-ON Optional in combo mode: 0-NONE, 1-ZERO, 5-CAL-ZERO,9- TARE, 13-CLEAR TARE, 17- GROSS/NET, 21- COMP-ON 41003-41004 1002-1003 Input 1 delay Range:0-200ms, Initial value:5ms, 41005-41006 1004-1005 Input 2 function Refer input1 function Specification 41007-41008 1006-1007 Input 2 delay Refer input1 delay Specification 41009-41010 1008-1009 Input 3 function...
  • Page 39 2, :0- Immediately,1-Stable,2-Debounce; Minimum decision time of failure, Initial 41075-41076 1074-1075 COMP1-FALSE HoldT value:1000ms,Range0-50000ms; 41077-41092 1076-1091 COMP 2 parameter 41093-41108 1092-1107 COMP 3 parameter 41109-41124 1108-1123 COMP 4 parameter 41125-41140 1124-1139 COMP 5 parameter Refer COMP1 parameters Specification 41141-41156 1140-1155 COMP 6 parameter 41157-41172 1156-1171...
  • Page 40 42015-42016 2014-2015 CH4 Current display weight value (4 bytes signed integer number) 42017-42018 2016-2017 CH1 Current display pressure value (4 bytes signed integer number) 42019-42020 2018-2019 CH2 Current display pressure value (4 bytes signed integer) 42021-42022 2020-2021 CH3 Current display pressure value (4 bytes signed integer) 42023-42024 2022-2023 CH4 Current display pressure value (4-byte signed integer)
  • Page 41 calibration, range: 0-999999, default: 10000, unsigned integer 42057-42058 2056-2057 Angle Correct Coef 1 Default: 100000; read-write 42059-42060 2058-2059 Angle Correct Coef 2 Default value: 100000 read-write 42061-42062 2060-2061 Angle Correct Coef 3 Default: 100000; read-write 42063-42064 2062-2063 Angle Correct Coef 4 Default: 100000;...
  • Page 42 48023 8022 Protocol 48024 8023 Data Format 48025 8024 Dword Format 48026 8025 Send Gap 48027~48100 8026~8039 Reserve CAN OPEN Parameter 48041 8040 COM ID Initial value:1;range:1-127 48042 8041 Baudrate Range:0-50K, 1-100K, 2-125K, 3-250K, 4-500K Initial value:1;range:0-standard frame(11bit), 48043 8042 Report frame format 1-extension frame (29bit)(only used for actively report frame)...
  • Page 43 48303 8302 input2 test any value is invalid,Only in IO test mode is valid 48304 8303 input3 test 48305 8304 input4 test 48306~48350 8305~8349 Reserve 48351 8350 output1 test 48352 8351 output2 test 48353 8352 output3 test Range:0-1, write in:0:OFF output, 1:ON 48354 8353 output4 test...
  • Page 44 48529~48600 8528~8599 Reserved CH3(Effective in indep mode) D Default:2;Range: 0:0-5V,1:0-10V,2:4- 48601 8600 Analog output mode 20mA,3:0-20mA,4:0-24mA,5:-5-5V, 6:-10-10V. 48602~48505 8601~8604 Reserved 48606-48628 8605-8627 Refer CH1 analog CAL parameter 48629~48700 8628~8699 Reserved CH4(Effective in indep mode) Default:2;Range: 0:0-5V,1:0-10V,2:4- 48701 8700 Analog output mode 20mA,3:0-20mA,4:0-24mA,5:-5-5V,...
  • Page 45 code, Range:0-9,A-Z,a-z, blank space, '-';default:WELCOME blank space Default:0;Range:0:Indep Mode,1:Combo Mode,2: 49310 09309 Mode Viewing Four Channel Weight Values in Combination Mode Default: 0x00FF; Range: 0x00FF- 0xFFFF (0x000F: Channel one, 0x00F0: Channel two, 0x0F00: 49311 09310 Channel combination Channel three, 0xF000: Channel four, for example, 0x0FFF indicates the combination of channel one + channel two + channel three)
  • Page 46: Gm-Cont(Continuous Sending Protocol)

    0x0506 0505 Maintenance Remote Edit 0x0507 0506 PWD Protect 11.2 GM-Cont(Continuous Sending Protocol) GMT-X4 when COM Protocol is“GM-Cont”,send data according below format. Scale weight Each occupies 8 bits, with state1 state2 value reference to channel 1 data format, valid in independent mode.
  • Page 47: Can Open Protocol

    0.0000 Weight Unit Decimal state2——1 bit,format as below: bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 Reserve Reserve Reserve Overflow GROSS/NET ZERO STAB 0-None 0-normal 0-UnStable 0-GROSS Fix 0 Fix 1 Fix 0 ZERO 1- overflow 1- STAB 1-NET 1-ZERO 2,...
  • Page 48: Standard Frame Read Data Format

    bit6 bit5 bit4 bit3 Frame 10:active report weight;11 active report function voltage bit2 bit1 reserved(fix 0) bit0 Data format Byte7 32 bit integer signed number ,data Hi- Word 3 Byte6 weight data Lo,OFL,-OFL display weight data is Byte5 9999999, -9999999 Word 2 Byte4 Below status valid is 1...
  • Page 49: Standard Frame Write In Data Format

    bit4 bit3 Frame Fix 01:read parameter bit2 function frame machine bit1 Fix 0:from host to slave direction bit0 data type 0:word (2byte);1:Dword(4byte) Back to data format Byte7 Word 3 read Dword Lo word CD part or read word Byte6 Byte5 Word 2 Read Dword Hi word AB part Byte4...
  • Page 50: The Extended Frame Actively Reports The Data Format

    Byte6 Byte5 Word 2 write in Dword AB Byte4 Byte3 Operative result: Word 1 0 sucess,1 address error ,2 data unresonable Byte2 Byte1 Word 0 Write in address Byte0 11.3.4 The extended frame actively reports the data format bit28 bit27 bit26 bit25 address...
  • Page 51: Profinet

    Transmitter IP address please check at 【 Communication】-- 【Profinet】 ; MAC address please check at【Maintenance】--【System Info】. IO status in combo mode( 11.4.1 Cycle parameter GMT-X4 provides 36 byte IO, the master station can read and control the status of the weighing display. PN Offsets Parameter Data type...
  • Page 52 D12:NETstate does not allow TARE D11: When tare, the weight is negative D10: TARE, loadcell OFL D09: TARE, loadcell -OFL D08:, TARE,no STAB D07:NET state not allow ZERO D06:The remote reset switch is not turned on during remote reset D05:ZERO, load cell OFL D04:ZERO, load cell-OFL D03:ZERO,no STAB D02:ZERO over Range...
  • Page 53: Io Status In Indep Mode(Cycle Parameter)

    Display Current Currently displayed weight integer/weight float DWord Weight/ type /voltage value, default display weight float Voltage type. Refer CH1 state byte (Note: differ with CH1, Status flag bit Word D14-D15 are reserved) Display Currently displayed weight integer/weight float Current type /voltage value(depending on the PN DWord Weight/...
  • Page 54 value default display float weight. D15:communication heartbeat(After the connection is established, the value of the PN's communication heartbeat is converted between 0 and 1 at a frequency of 1 Hz) D14:write state(write data return state 0:no error 1: register address illegal 2: parameter error) D12-D13: reserved D11:Use theory value calculate weight,(Use theory value calculate weight prompt user)
  • Page 55: Acyclic Parameter List

    Error code 3 Refer CH1 error code 1 Word Currently displayed weight integer/weight float type Display Current /voltage value(depending on the PN parameter data type), DWord Weight/ Voltage default display float weight. Refer CH1 state byte (Note: differ with CH1, D14-D15 State flag bit Word are reserved)
  • Page 56: Device Description File Gsd

    (www.gmweighing.com). 11.5 EtherCAT communication The GMT-X4 display has two bus connection ports: LAN1 and LAN2, with LAN2 serving as the entry when EtherCAT is connected. Any computer with a network interface card and any embedded device with Ethernet control can serve as a master station for EtherCAT, such as devices such as Huichuan PLC.
  • Page 57: Device Description File Esi

    Info】. 11.6.1 IO module address in combo mode(cyclic Parameters) GMT-X4 provides 36 bytes INPUT and 16 bytes OUTPUT. The master station can read and control the status of the weighing display through these I/ O. The specific IO module address can refer to the IO address in combo mode 11.4.1 IO status in combo...
  • Page 58: Io Module Address In Indep Mode (Cyclic Parameters)

    11.6.2 IO module address in indep mode (cyclic Parameters) Offsets Parameters Data type Parameter Description Read register of PLC (I address) Currently displayed weight integer/weight floating-point Current Display (depending on the PN parameter data type). Default: DINT weight/ Volt Display floating-point weight(Need to use REAL type to (4Byte) read on the computer).
  • Page 59 Display floating-point weight(Need to use REAL type to read on the computer) D12-D15: reserved D11:Use theory value calculate weight,(Use theory value calculate weight prompt user) D10:ADC fault,(ADC initialization failure or sampling interruption longer than expected) D9:Net weight of the current display (distinguish which weight is currently displayed) D8 :...
  • Page 60: Acyclic Parameter List

    11.4.3 Acyclic parameter list. 11.6.3 Device description file EDS GMT-X4 device description file and connection methord can download at Shenzhen General Measure Technology Company, Ltd.’s website (www.gmweighing.com) 11.7 CCLink IE Field Basic communication When selecting CCLink IE Field Basic for extended communication, it can communicate with the PLC.
  • Page 61: Cycle Parameter Address

    11.7.1 Cycle parameter address Offsets Parameter Data type Specification Weight and state parameters(read register,I address) Currently displayed weight integer/weight float type Display Current /voltage value/AD Code (depending on the CCLINK IE RWr0- Weight/ Voltage DWord Field Basic parameter data type), default display float RWr1 value/AD Code weight.
  • Page 62: Acyclic Parameter List

    MODBUS address ranges. 11.7.2 Acyclic parameter list Refer to Profinet communication section 11.4.3 Acyclic parameter list. 11.7.3 Device description file CSPP GMT-X4 device description file and connection methord can download at Shenzhen General Measure Technology Company, Ltd.’s website (www.gmweighing.com) - 58 -...
  • Page 63: Dimension

    12. DIMENSION - 59 -...

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