Group Four Transducers GLDM 64.1 Technical Manual
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Group Four Transducers GLDM 64.1 Technical Manual

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Load Cell Digital Module
Type GLDM
64.1
T
M
F
T
0 (B
)
ECHNICAL
ANUAL
IRMWARE
YPE
ASIC
I
C
P
NCLUDING
OMMUNICATION
ROFILE
CAN
OPEN
Firmware Version 64.181.v.3.00 or higher
Hardware Version 64.105.v.1.xx
Document No. X64 Rev 1.30 EN
GLDM 64.1 Technical Manual rev. 1.30 February
Page 1 of 50
2020

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Summary of Contents for Group Four Transducers GLDM 64.1

  • Page 1 Load Cell Digital Module Type GLDM 64.1 0 (B ECHNICAL ANUAL IRMWARE ASIC NCLUDING OMMUNICATION ROFILE OPEN Firmware Version 64.181.v.3.00 or higher Hardware Version 64.105.v.1.xx Document No. X64 Rev 1.30 EN GLDM 64.1 Technical Manual rev. 1.30 February Page 1 of 50 2020...

  • Page 2: Table Of Contents

    Correction of System Zero ........................18 6.2.12. ZR Zero Range............................... 18 6.2.13. ZI Initial Zero Range ............................18 6.2.14. Tare mode ............................. 18 6.2.15. TN Set / Clear Non-Volatile Tare ........................19 GLDM 64.1 Technical Manual rev. 1.30 February Page 2 of 50 2020...
  • Page 3 GA Get Triggered Average Value........................33 6.12.4. TE Trigger Edge ............................. 33 6.12.5. TR Software Trigger ............................33 6.12.6. TL Trigger Level ............................. 34 6.12.7. SA Send Triggered Average Value automatically ..................34 GLDM 64.1 Technical Manual rev. 1.30 February Page 3 of 50 2020...
  • Page 4 General ..............................39 7.2. The PDOs ..............................40 7.3. The SDOs ..............................41 7.4. Communication Profile ..........................41 7.5. Object Directory ............................41 Use in “Approved” Applications ......................50 GLDM 64.1 Technical Manual rev. 1.30 February Page 4 of 50 2020...

  • Page 5: Safety Instructions

    The information herein is believed to be both accurate and reliable. Group Four Transducers, however, would be obliged to be informed if any errors occur. Group Four Transducers cannot accept any liability for direct or indirect damages resulting from the use of this manual.

  • Page 6: Introduction And Specifications

    The model GLDM 64.1 is a very precise high-speed digital amplifier for weighing and force measurements with strain gauge (SG) sensors. The GLDM 64.1 can be used in legal for trade (requires OIML R-76:2006 Part 1) as well as for industrial applications.

  • Page 7: Hardware And Wiring

    In case of using a load cell/scale with 4 wire cable, you have to short-circuit (bridge) the pins 8 & 9 and 13 & 14. Remark: Please don’t shorten the 4 wire cable of a load cell, as the cable is part of the factory calibration (signal & temperature compensation). GLDM 64.1 Technical Manual rev. 1.30 February Page 7 of 50 2020...

  • Page 8: Terminals Power Supply

    Depending on the grounding concept of the plant/scale, terminal 2 has to be connected to terminal 3. Terminal 11 (shld. load cell) and 3 (Ground chassis) are internal connected. Note: The power supply must be able to supply about 0.75W per GLDM 64.1. 3.5.

  • Page 9: Seal Switch

    3.8. Logic Inputs & Outputs The GLDM 64.1 offers 4 isolated logic inputs and 4 isolated logic outputs, all “floating”. The input 0 can get the function to act as Trigger Button for a measurement, see chapter 8.12.6. The 4 outputs act as switches for setpoints with hysteresis, switch behavior etc. Several bases can be used like gross weight, net weight or average weight value, see chapter 8.9.x.

  • Page 10: Communication And Getting Started

    The command setup is based on a simple ASCII format (2 letters). This enables the user to setup the device, get results or check parameters. Example: Connect the GLDM 64.1 via the RS232 port to a PC / PLC system. You want to get the identity, firmware version or net weight.

  • Page 11: Commands - Overview

    Open communication and send net weight (For compatibility only) 1…255 Open communication (For compatibility only) Download a saved image file to the LDU’s EEPROM None Pre-filter (anti aliasing filter) ON / OFF 0 or 1 GLDM 64.1 Technical Manual rev. 1.30 February Page 11 of 50 2020...
  • Page 12 Save the Setup Data (FL, NR, NT, AD, BR, DX) to the EEPROM None Calibration: Initial Zero Range 0...999999 d Calibration: Set/Clear non-volatile zero 0 or 1 Calibration: Zero Range 0...999999 d 0…255 Zero Tracking: Range GLDM 64.1 Technical Manual rev. 1.30 February Page 12 of 50 2020...

  • Page 13: Commands Description

    [n.a.] mentioned, the command is not available for CANbus. 6.1. System Diagnosis Commands – ID, IV, IS, SR, RS Use these commands you get the GLDM 64.1 type, firmware version or device status. These commands are sent without parameters. 8.1.1.

  • Page 14: Sr Software Reset

    Note: The range, in which a scale can be set to zero (SZ) or automatic zero tracking (ZT) is active, is +/- 2% of CM value. Factory default: CM1 = 999999, CM 2 = 0, CM 3 = 0 GLDM 64.1 Technical Manual rev. 1.30 February Page 14 of 50...

  • Page 15: Ci Set Minimum Output Value

    Slave (GLDM 64.1) responds Meaning DP P+00003 Request: Position of decimal point 3 CE E+00017 (example) Request: TAC counter CE17 CE17 Calibration sequence active DP0 Setup: no decimal point GLDM 64.1 Technical Manual rev. 1.30 February Page 15 of 50 2020...

  • Page 16: Set Calibration Zero Point

    8.2.10. FD Reset to Factory Default Settings [ SDO 2006 sub 02 ] This command puts the GLDM 64.1 back to a known state. The data will be written to the EEPROM and the TAC will be incremented by +1.

  • Page 17: Iz Correction Of System Zero

    Allow tare of negative values Clear preset tare at return to range 1 0 (Default) Note: For OIML R76 compatible applications a tare mode of 1 must be used. GLDM 64.1 Technical Manual rev. 1.30 February Page 17 of 50 2020...

  • Page 18: Tn Set / Clear Non-Volatile Tare

    The CS command saves all of the calibration group values, as set by CZ, CG, CM‘n’, DS, DP and ZT. The command returns ERR and has no updating action unless it is proceded by the cmd CE_XXXXX. GLDM 64.1 Technical Manual rev. 1.30 February Page 18 of 50...

  • Page 19: Ft Firmware Type

    8.2.20. FT Firmware Type [ SDO 2300 sub 0x15 ] The GLDM 64.1 with firmware version 64.181.v.3.00 or higher can be used to run different applications. The respective firmware type can be freely selected with the FT command. The firmware types FT: FT = 0 is the basic version with checkweigher and re-trigger functions, content of this manual.

  • Page 20: Filter Setting Commands - Fm, Fl, Ur

    ** Note: The pre-filter can be switch ON and OFF with the command PF – settings are 0 (OFF) or 1 (ON). This feature can be used with ASCII communication or CANbus [ SDO 2100 sub 16 The use is for specialists only. GLDM 64.1 Technical Manual rev. 1.30 February Page 20 of 50 2020...

  • Page 21: Ur Update Rate And Averaging

    Set zero performed The SZ command will fail (GLDM 64.1 responds with ERR) if the new “current zero” is more than CM) higher or lower than the “true zero” set during calibration. The SZ command will also fail if the weight signal is not stable as defined by No motion range (NR) and No motion time (NT).

  • Page 22: Rz Reset Zero

    This command sets a preset tare value. Master (PC / SPS) sends Slave (GLDM 64.1) responds Meaning SP T+000000 Tare value 0 (factory default SP1000 Setup tare value 1000d GLDM 64.1 Technical Manual rev. 1.30 February Page 22 of 50 2020...

  • Page 23: Output Commands - Gg, Gn, Gt, Gs, Gw, Ga, Gl, Of

    Output Commands – GG, GN, GT, GS, GW, GA, GL, OF 6.6. The following commands “Get’s” the gross, net, tare and ADC sample values from the GLDM 64.1. 8.6.1. GG Get Gross Value [ SDO 2900 sub 01 ] Master (PC / SPS) sends Slave (GLDM 64.1)

  • Page 24: Gl Get Data String "Average, Gross And Status

    Decimal Point in GW/GL response 0 (= factory default) E.g. when the range information is selected, the data strings will change from G+000000 to Gn+000000, where 1 ≤ n ≤ 3. GLDM 64.1 Technical Manual rev. 1.30 February Page 24 of 50 2020...

  • Page 25: Auto-Transmit Commands - Sg, Sn, Sx, Sa, Sl

    GLDM 64.1. The continuous transmission of either the gross or net values will stop when another valid command is received.

  • Page 26: Commands For External I/O Control - In, Io And Om

    Enables output 1 OM_ 0011 Enables outputs 0 and 1 Note: When reading the status of the logic outputs using the IO command, the setpoint status will be GLDM 64.1 Technical Manual rev. 1.30 February Page 26 of 50 2020...
  • Page 27 OM setting. Sending OM_0000 disables the external logic output control. GLDM 64.1 Technical Manual rev. 1.30 February Page 27 of 50 2020...

  • Page 28: Setpoint Output Commands - S'n', H'n', A'n', Ht

    Request: setup hysteresis of setpoint S1 H1_-5000 Setup: neg. hysteresis -5000d for setpointS1 Allowed hysteresis values are within the range from -32768 to 32767 at a step size of 1. GLDM 64.1 Technical Manual rev. 1.30 February Page 28 of 50 2020...

  • Page 29: A'n' Allocation Source For A Setpoint

    Default setting: HT = 0 ms. Master (PC / SPS) sends Slave (GLDM 64.1) responds Meaning HT H+00000 Request: HT = 0 ms HT200 Setup: HT = 200 ms GLDM 64.1 Technical Manual rev. 1.30 February Page 29 of 50 2020...

  • Page 30: Communication Setup Commands - Ad, Cr, Na, Ns, Br, Dx

    10, 20, 50, 125, 250, 500, 800 and Bit rate 1000 kbit/s 0…65535 TPDO1 Divider Notes for the interfaces 1 (CAN) Note 1: Identical to the ID command. Note 2: Identical to the NA command. GLDM 64.1 Technical Manual rev. 1.30 February Page 30 of 50 2020...

  • Page 31: Br Baud Rate - Serial Channel

    DX X:001 Request: DX = 1 (Full duplex, factory default)) DX1 Setup: DX = 1 (Full duplex) Note: The GLDM 64.1 always operates in full duplex mode. GLDM 64.1 Technical Manual rev. 1.30 February Page 31 of 50 2020...

  • Page 32: Save Calibration And Setup Data Commands - Cs, Wp, Ss, Gi, Pi

    Downloads a HEX-INTEL formatted EEPROM image file to the target GLDM64.1 EEPROM. The image file contains all stored information. Attention: The target GLDM64.1must have same firmware type and revision no. as the source GLDM64.1. GLDM 64.1 Technical Manual rev. 1.30 February Page 32 of 50 2020...

  • Page 33: Trigger Commands - Sd, Mt, Ga, Te, Tr, Tl, Sa

    This command starts a measurement cycle. Its execution is similar to hardware trigger via input IN0. Master (PC / SPS) sends Slave (GLDM 64.1) responds Meaning TR Trigger event GLDM 64.1 Technical Manual rev. 1.30 February Page 33 of 50 2020...

  • Page 34: Tl Trigger Level

    Master (PC / SPS) sends Slave (GLDM 64.1) responds Meaning SA Auto-Transmit: triggered average value This command will start to auto-transmit the measurement value of the current trigger cycle. GLDM 64.1 Technical Manual rev. 1.30 February Page 34 of 50 2020...

  • Page 35: Example Of Live Checkweigher Measurement With Dop4

    8.12.8. Example of Live Checkweigher Measurement with DOP4 This is an example of recording a checkweigher measurement while passing the weighing belt. GLDM 64.1 Technical Manual rev. 1.30 February Page 35 of 50 2020...

  • Page 36: Re-Trigger Commands - Rw, Tt, Ts, Dt, Tw And Ti

    Default setting: DT = 50ms Master (PC / SPS) sends Slave (GLDM 64.1) responds Meaning DT T+00050 Request: DT = 50 ms DT25 Setup: DT = 25 ms GLDM 64.1 Technical Manual rev. 1.30 February Page 36 of 50 2020...

  • Page 37: Tw Window For Automatic Taring

    Slave (GLDM 64.1) responds Meaning TI T+00000 Request: TI = 0 ms TI200 Setup: TI = 200 ms Figure: Time plot of a measurement cycle with the re-trigger function GLDM 64.1 Technical Manual rev. 1.30 February Page 37 of 50 2020...

  • Page 38: Example Of Live Multihead Scale Measurement With Dop4

    8.13.7. Example of Live Multihead Scale Measurement with DOP4 This is an example of recording a multihead scale measurement while potatoes fall into the scale. GLDM 64.1 Technical Manual rev. 1.30 February Page 38 of 50 2020...

  • Page 39: Canopen Interface

    29 bit identifiers. It only transmits 11 bit identifiers. The CAN rate is setup as default to 500 kbit/s. The GLDM 64.1 is always quiet on the CAN bus until the NMT Start command is received, except for the very first ‘node guard’ message.

  • Page 40: The Pdos

    The Weight and status is sent using TPDO1. One TPDO1 is sent each time a new measurement is ready. The high measuring rate of the GLDM 64.1 will result in approx. 1200 TPDO1’s per second. If the PLC system can’t handle 1.200 meas./sec., the output rate can be reduced – see the command NS1_6 (index 2007 sub 6), only for CANbus available.

  • Page 41: The Sdos

    ➢ Are only available on request ➢ See tables 6.5 Object Directory ➢ Can be used for complete setup of the GLDM 64.1 via CAN bus master, e.g: - Filter setting: Index 2100, Subindex 4 - Filter Mode setting: Index 2100, Subindex 9 ➢...
  • Page 42 Communication Profile (Tables) Index Sub- Name Type Attri- Default-value Meaning index bute 0x1000 0x00 Device Type UI32 Non standard device profile 0x1001 0x00 Error Register Not used 0x1002 0x00 Status register UI32 Not used 0x1005 0x00 COB-ID Sync message UI32 0x80 COB-ID of the SYNC object 0x1006 0x00...
  • Page 43 Index Sub- Name Type Attri- Default-value Meaning index bute 0x1402 0x00 Number of elements Communication parameters of 3 Receive PDO 0x01 COB-ID UI32 0x80000400 + Determined using the CANopen minimum system ID assignment procedure. NodeID Asynchronous communication. 0x02 Transmission type 0xFF 0x1403 0x00 Number of elements...
  • Page 44 Index Sub- Name Type Attri- Default Value Meaning Index 0x1803 0x00 Number of elements Communication parameters of 4 Transmit PDO 0x01 COB-ID UI32 0x80000480 + Determined using the CANopen minimum system ID assignment procedure. NodeID 0x02 Transmission type 0xFF Asynchronous communication. (Not used, will not be transmitted) 0x1A00 0x00 Number of mapped Mapping parameters of the 1...
  • Page 45 Index Sub- Name Type Attri- Default Value Meaning Index 0x2001 0x00 Number of entries. 0x06 Number of entries. Get gross weight – GG command. 0x01 Gross weight. Get net weight – GN command. 0x02 Net weight. Get tare weight – GT command. 0x03 Tare.
  • Page 46 Index Sub- Name Type Attri- Default Value Meaning Index 0x2100 0x00 Number of entries. 0x17 Number of parameters. 0x01 Dummy UI32 Not used. 0x02 Dummy UI32 Not used. 0x03 Dummy UI32 Not used. Filter setting –FL command. 0x04 Filter setting 0x05 Dummy UI32...
  • Page 47 Index Sub- Name Type Attri- Default Value Meaning Index 0x2200 0x00 Number of entries. 0x17 Number of parameters PreFill Mode – PD1 command. 0x01 Pre-fill mode Inflight Correction – PD2 command. 0x02 In-flight correction factor Zero Check time – PD3 command. 0x03 Zero check time Tare Delay –...
  • Page 48 Index Sub- Name Type Attri- Default Value Meaning Index 0x2300 0x00 Number of entries. 0x15 Number of calibration parameters. Absolute gain calibrate (TAC protected) – AG command. 0x01 Absolute gain 20000 Absolute zero calibrate (TAC protected) – AZ command. 0x02 Absolute zero Calibrate enable (enables TAC when the TAC is written) –...
  • Page 49 Index Sub- Name Type Attri- Default Value Meaning Index 0x2600 0x00 Number of entries. 0x04 Number of Set-points Set-point 1 value – S0 command. 0x01 Set-point 1 value 5000 Set-point 2 value – S1 command. 0x02 Set-point 2 value 10000 Set-point 3 value –...

  • Page 50: Use In "Approved" Applications

    EN’s (Euro Norms) or the relevant OIML (Organisation Internationale de Metrologie Legale) recommendations. The GLDM 64.1 has been certified as a module for use in scales according to OIML recommendation R76, the highest performance level approved being Class III, 10 000 intervals(e) in single range, multi-range and multi- interval applications.

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