H&B DAD 141.1 Technical Manual

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Page 1

Load Cell Digitizing Unit

Type DAD 141.1

Communication via RS 422/485 & Ethernet Port

TECHNICAL MANUAL

Firmware Version 141.181.v.1.10 or higher

Hardware Version 141.10x.v.1.01

Document No. E 223 Rev. 2.5 EN

Hauch & Bach ApS Femstykket 6 DK-3540 Lynge Denmark

www.haubac.com

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DAD 141.1 Technical Manual, Rev. 2.5 – April 2015

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0. Table of Contents:

0. Table of Contents: ..................................................................................................................................... 2

1. Safety Instructions .................................................................................................................................... 5

2. Declaration of Conformity......................................................................................................................... 6

3. Introduction and Specifications ............................................................................................................... 7

4. Communications and Getting started ..................................................................................................... 8

4.1. Serial Interface ..................................................................................................................................... 8

4.2. Command Language ............................................................................................................................ 8

4.3. Baud Rate ............................................................................................................................................. 8

4.4. Getting Started Via RS422/485 ............................................................................................................ 8

4.5. Getting Started Via Ethernet Interface ................................................................................................. 9

4.6. Modbus TCP or Modbus RTU .............................................................................................................. 9

5. Hardware and Wiring ............................................................................................................................... 10

5.1. Housing & Terminals .......................................................................................................................... 10

5.2. Terminals Load Cell Connection ........................................................................................................ 10

5.3. Load Cell Connection ......................................................................................................................... 10

5.4. Terminals Power Supply ..................................................................................................................... 11

5.5. Terminals Serial Port RS 422/485 ...................................................................................................... 11

5.6. Ethernet Port ...................................................................................................................................... 11

5.7. Seal Switch ......................................................................................................................................... 11

5.8. Logic Inputs & Outputs ....................................................................................................................... 12

5.9. Analog Outputs .................................................................................................................................. 12

6. Menu Structure Setup Keybord .............................................................................................................. 13

7. Setup Via Front Panel Keyboard ............................................................................................................ 14

7.1. Keyboard Buttons ............................................................................................................................... 14

7.2. Use of Keyboard Buttons.................................................................................................................... 14

7.3. Menu 1 – System Zero ....................................................................................................................... 15

7.4. Menu 2 – System Span ...................................................................................................................... 16

7.5. Menu 3 – Display ................................................................................................................................ 16

7.6. Menu 4 – Filter & Motion Detection .................................................................................................... 17

7.7. Menu 5 – Analog Output ..................................................................................................................... 18

7.8. Menu 6 – Logic Inputs ........................................................................................................................ 19

7.9. Menu 7 – Logic Outputs ..................................................................................................................... 20

7.10. Menu 8 – Data Communication .......................................................................................................... 21

7.11. Factory Default via Front Panel .......................................................................................................... 22

7.12. Error Codes ........................................................................................................................................ 23

8. Examples .................................................................................................................................................. 24

8.1. Example 1 – Calibration procedure using weights ............................................................................. 24

8.2. Example 2 – Calibration procedure using load cell’s mV/V sensitivity ............................................... 26

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9. Commands – Overview ........................................................................................................................... 28

10. Commands Description .......................................................................................................................... 30

10.1. System Diagnosis Commands – ID, IH, IV, IS, SR, RS ..................................................................... 30

10.1.1. ID Get Device Identity [ Index 0x202C ] .................................................................................................... 30

10.1.2. IH Get Hardware Version .............................................................................................................................. 30

10.1.3. IV Get Firmware Version [ Index 0x202E ] ................................................................................................ 30

10.1.4. IS Get Device Status [ Index 0x2030 ] ...................................................................................................... 30

10.1.5. SR Reset DAD 141.1 Firmware ..................................................................................................................... 31

10.1.6. RS Read Serial Number [ Index 0x2034 ] ................................................................................................... 31

10.2. Calibration Commands – CE, CM, CI, DS, DP, CZ, CG, ZT, FD, ZR, ZI, AZ, AG, CS, SU, RU ........ 31

10.2.1. CE Read TAC* Counter / Open Calibration Sequence [ Index 0x2204 ] ..................................................... 31

10.2.2. CM Set Maximum Output Value [ Index 0x220C ] ...................................................................................... 31

10.2.3. CI Set Minimum Output Value [ Index 0x220E ] ........................................................................................ 31

10.2.4. DS Set Display Step Size [ Index 0x2216 ] ............................................................................................... 32

10.2.5. DP Set Decimal Point Position [ Index 0x2214 ] ......................................................................................... 32

10.2.6. CZ Set Calibration Zero Point [ Index 0x2212 ] ................................................................ .......................... 32

10.2.7. CG Set Calibration Gain (Span) [ Index 0x2206 ] ....................................................................................... 32

10.2.8. ZT Zero Tracking [ Index 0x2122 ] ........................................................................................................... 33

10.2.9. FD Reset to Factory Default Settings [ Index 0x2066 ] ................................................................................ 33

10.2.10. ZR Zero Range [ Index 0x2220 ] ....................................................................................................... 33

10.2.11. ZI Initial Zero ON / OFF [ Index 0x221E ] ............................................................................................ 33

10.2.12. AZ Absolute zero point calibration (eCal) [ Index 0x2202 ] ..................................................................... 34

10.2.13. AG Absolute gain calibration (eCal) [ Index 0x2200 ] ........................................................................... 34

10.2.14. CS Save the Calibration Data [ Index 0x2066 ] ................................................................................... 34

10.2.15. SU Save User Setup in EEPROM ........................................................................................................... 34

10.2.16. RU Restore User Setup to DAD 141.1 ..................................................................................................... 34

10.3. Motion Detection Commands – NR, NT ............................................................................................. 35

10.3.1. NR Set ‘No-motion’ Range [ Index 0x2112 ] ............................................................................................. 35

10.3.2. NT Set ‘No-motion’ Time Period [ Index 0x2114 ] ...................................................................................... 35

10.4. Filter Setting Commands – FM, FL, UR ............................................................................................. 36

10.4.1. FM Filter Mode [ Index 0x2110 ] ........................................................................................................... 36

10.4.2. FL Filter Settings [ Index 0x2106 ] ......................................................................................................... 36

10.4.3. UR Update Rate and Averaging [ Index 0x2120 ] ...................................................................................... 37

10.5. Taring and Zeroing Commands – SZ, RZ, ZN, ST, RT, TN, RW, TI .................................................. 38

10.5.1. SZ Set System Zero [ Index 0x2061 ] ..................................................................................................... 38

10.5.2. RZ Reset Zero [ Index 0x2061 ] ............................................................................................................ 38

10.5.3. ZN Store Zero Value [ Index 0x2226 ] .................................................................................................. 38

10.5.4. ST Set Tare [ Index 0x2061 ]................................................................................................................. 38

10.5.5. RT Reset Tare [ Index 0x2061 ] ............................................................................................................ 38

10.5.6. TN Store Tare Value [ Index 0x2224 ] ................................................................................................... 39

10.5.7. TW Window for Automatic Taring [ Index 0x240A ] ................................................................................ 39

10.5.8. TI Averaging Time for Automatic Taring [ Index 0x240C ] ........................................................................ 39

10.6. Output Commands – GG, GN, ON, GT, GS, GW, GA, GH, GM, RM, GO, GV ................................. 40

10.6.1. GG Get Gross Value [ Index 0x2000 or 0x2020 ] .................................................................................... 40

10.6.2. GN Get Net Value [ Index 0x2002 or 0x2022 ] ........................................................................................ 40

10.6.3. ON Get Net Value of device ’n’ ...................................................................................................................... 40

10.6.4. GT Get Tare Value [ Index 0x2118 ]......................................................................................................... 40

10.6.5. GS Get ADC Sample Value [ Index 0x202A ] ........................................................................................... 40

10.6.6. GW Get Data String “Net, Gross and Status“ [ Index 0x3300 or 0x3500 ] ............................................... 40

10.6.7. GA Get Triggered Average Value [ Index 0x2008 or 0x2028 ] ................................................................ 41

10.6.8. GH Get Hold Value [ Index 0x2084 or 0x2086 ] ...................................................................................... 41

10.6.9. TH Trigger Hold Value [ Index 0x2061 ] ................................................................................................... 41

10.6.10. GM Get Peak Value [ Index 0x2080 or 0x2082 ] ............................................................................... 41

10.6.11. RM Reset Peak Value [ Index 0x2061 ] .............................................................................................. 41

10.6.12. GO Get Peak To Peak Value [ Index 0x208C or 0x208E ] .................................................................. 41

10.6.13. GV Get Valley Value [ Index 0x2088 or 0x208A ] .............................................................................. 41

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10.7. Auto-Transmit Commands – SG, SN, SW, SA, SH, SM, SO, SV ...................................................... 42

10.7.1. SG Send Gross Value continuously ............................................................................................................... 42

10.7.2. SN Send Net Value continuously ................................................................................................................... 42

10.7.3. SW Send Data String “Net, Gross and Status“ continuously .......................................................................... 42

10.7.4. SA Send Triggered Average Value automatically .......................................................................................... 42

10.7.5. SH Send Hold Value continuously.................................................................................................................. 42

10.7.6. SM Send Peak Value continuously ................................................................................................................ 42

10.7.7. SO Send Peak To Peak Value continuously .................................................................................................. 42

10.7.8. SV Send Valley Value continuously ............................................................................................................... 42

10.8. Logic Input Functions & Status – AI’n’, IN ......................................................................................... 43

10.8.1. AI Assign input ‘n’ [ Index 0x2074 and 0x2076 ] ......................................................................................... 43

10.8.2. IN Read status of the logic inputs [ Index 0x210C ] .................................................................................... 43

10.9. Logic Output Commands - IO, OM, S’n’, H’n’, P’n’, A’n’, HT ............................................................ 44

10.9.1. IO Read / Modify the Status of the logic Outputs [ Index 0x210A ] ............................................................. 44

10.9.2. OM Control of the logic outputs by the host application [ Index 0x2116 ] ..................................................... 44

10.9.3. A’n’ Assign action for setpoint ‘n’ [ Index 0x2068 ] ...................................................................................... 45

10.9.4. S‘n’ Setpoint Value [ Index 0x206C ] .......................................................................................................... 45

10.9.5. H’n’ Setpoint Hysteresis and Switching Action [ Index 0x206A ] .................................................................. 45

10.9.6. P’n’ Polarity of Setpoint [ Index 0x2070 ] ..................................................................................................... 46

10.9.7. HT Hold time for all Setpoints [ Index 0x2408 ] .............................................................................................. 46

10.10. Communication Setup Commands – AD, NA, BR, DX, OP, CL, TD .................................................. 47

10.10.1. AD Device Address ................................................................................................................................. 47

10.10.2. NA Network Address [ Index 0x300C ] ................................................................................................. 47

10.10.3. BR Baud Rate ......................................................................................................................................... 47

10.10.4. DX Operation Mode Half-/Full-Duplex ..................................................................................................... 47

10.10.5. OP Open Device ..................................................................................................................................... 47

10.10.6. CL Close Devices ................................................................................................................................... 47

10.10.7. TD Transmission Delay .......................................................................................................................... 47

10.11. Analog Output – AA, AH, AL, AM ....................................................................................................... 48

10.11.1. AA Analog Output Base [ Index 0x2100 ] .............................................................................................. 48

10.11.2. AH Set Analog High Level [ Index 0x2102 ] .......................................................................................... 48

10.11.3. AL Set Analog Low Level [ Index 0x2104 ] ........................................................................................... 48

10.11.4. AM Set Analog Output Mode [ Index 0x2128 ] ....................................................................................... 48

10.12. Save Calibration and Setup – CS, WP, SS, AS, GI, PI ...................................................................... 49

10.12.1. CS Save the Calibration Data [ Index 0x2066 ] ................................................................................... 49

10.12.2. WP Save the Setup Parameters [ Index 0x2066 ] ................................................................................. 49

10.12.3. SS Save Setpoint Parameters [ Index 0x2066 ] ................................................................................... 49

10.12.4. AS Save Analogue Output Parameters [ Index 0x2066 ] ....................................................................... 49

10.12.5. GI Get an Image File from the EEPROM ................................................................................................ 49

10.12.6. PI Download an Image File to the EEPROM ........................................................................................... 49

10.13. Trigger Commands – SD, MT, GA, TE, TR, TL, SA ........................................................................... 50

10.13.1. SD Start Delay Time [ Index 0x211A or 0x2412] ............................................................................... 50

10.13.2. MT Measuring Time [ Index 0x210E or 0x2410 ] .............................................................................. 50

10.13.3. GA Get Triggered Average Value [ Index 0x2008 or 0x2028 ] ............................................................. 50

10.13.4. TE Trigger Edge [ Index 0x2402 or 0x211C ] ................................................................................... 50

10.13.5. TR Software Trigger [ Index 0x2062 ] ............................................................................................... 50

10.13.6. TL Trigger Level [ Index 0x211E or 0x2400 ].................................................................................... 51

10.13.7. SA Send Triggered Average Value automatically ................................................................................... 51

11. Use in “Approved” Applications ............................................................................................................ 52

12. Calibration and Calibration Sequence ................................................................................................... 53

13. Updates – Firmware Download .............................................................................................................. 54

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DAD 141.1 Technical Manual, Rev. 2.5 – April 2015

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RIGHTS AND LIABILITIES

No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, mechanical, photocopying, recording, or otherwise, without the prior written permission of Hauch & Bach ApS.

No patent liability is assumed with respect to the use of the information contained herein. While every precaution has been taken in the preparation of this book, Hauch & Bach assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained herein.

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

Hauch & Bach reserves the right to revise this manual and alter its content without notification at any time. Neither Hauch & Bach nor its affiliates shall be liable to the purchaser of this product or third parties for

damages, losses, costs, or expenses incurred by purchaser or third parties as a result of: accident, misuse, or abuse of this product or unauthorized modifications, repairs, or alterations to this product, or failure to strictly comply with Hauch & Bach operating and maintenance instructions.

Hauch & Bach shall not be liable against any damages or problems arising from the use of any options or any consumable products other than those designated as Original Hauch & Bach Products.

NOTICE: The contents of this manual are subject to change without notice.

1. Safety Instructions

CAUTION READ this manual BEFORE operating or servicing this equipment. FOLLOW these

instructions carefully. SAVE this manual for future reference. DO NOT allow untrained personnel to operate, clean, inspect, maintain, service, or tamper with this equipment. ALWAYS DISCONNECT this equipment from the power source before cleaning or performing maintenance. CALL Hauch & Bach ApS for parts, information, and service.

WARNING ONLY PERMIT QUALIFIED PERSONNEL TO SERVICE THIS EQUIPMENT. EXERCISE CARE WHEN MAKING CHECKS, TESTS AND ADJUSTMENTS THAT MUST BE MADE WITH POWER ON. FAILING TO OBSERVE THESE PRECAUTIONS CAN RESULT IN BODILY HARM.

WARNING FOR CONTINUED PROTECTION AGAINST SHOCK HAZARD CONNECT TO PROPERLY GROUNDED OUTLET ONLY. DO NOT REMOVE THE GROUND PRONG.

WARNING DISCONNECT ALL POWER TO THIS UNIT BEFORE REMOVING THE FUSE OR SERVICING.

WARNING BEFORE CONNECTING/DISCONNECTING ANY INTERNAL ELECTRONIC COMPONENTS OR INTERCONNECTING WIRING BETWEEN ELECTRONIC EQUIPMENT ALWAYS REMOVE POWER AND WAIT AT LEAST THIRTY (30) SECONDS BEFORE ANY CONNECTIONS OR DISCONNECTIONS ARE MADE. FAILURE TO OBSERVE THESE PRECAUTIONS COULD RESULT IN DAMAGE TO OR DESTRUCTION OF THE EQUIPMENT OR BODILY HARM.

CAUTION OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC SENSITIVE DEVICES.

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2. Declaration of Conformity

EG-Konformitätserklärung

EC-Declaration of Conformity

Monat/Jahr: month/year:

06/2013

Hersteller: Manufacturer:

Hauch & Bach ApS

Anschrift: Address:

Femstykket 6 DK-3540 Lynge Dänemark / Denmark Produktbezeichnung: Product name:

DAD 141.1

Das bezeichnete Produkt stimmt mit folgenden Vorschriften der Europäischen Richtlinien überein: This product confirms with the following regulations of the Directives of the European Community

Richtlinie 2004/108/EG des Europäischen Parlaments und des Rates vom 15. Dezember 2004 zur Angleichung der Rechtsvorschriften der Mitgliedstaaten über die elektromagnetische Verträglichkeit und zur Aufhebung der Richtlinie 89/336/EWG

Directive 2004/108/EC of the European Parliament and of the Council of 15th December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC

Diese Erklärung bescheinigt die Übereinstimmung mit den genannten Richtlinien, beinhaltet jedoch keine Zusicherung von Eigenschaften.

This declaration certifies the conformity with the listed directives, but it is no promise of characteristics.

Richtlinie 2006/95/EG Niederspannungs-Richtlinie

Directive 2006/95/EC Low Voltage Directive

Folgende Normen werden zum Nachweis der Übereinstimmung mit den Richtlinien eingehalten:

As a proof of conformity with the directives following standards are fulfilled:

OIML R-76-1

Nicht-Selbsttätig Waagen – Metrologische und technische Anforderungen (OIML R-76:2002 Teil 1)

Non-automatic weighing systems – Metrological and technical requirements (OIML R-76:2002 Part 1)

DIN EN 45501

Metrologische Aspekte nichtselbsttätiger Waagen; Deutsche Fassung EN 45501:1992

Anhang B.3: Funktionsprüfungen unter Störeinflüssen Anhang C: Verfahren für die Prüfung der Störfestigkeit gegen hochfrequente elektromagnetische Felder.

Michael Bach Managing Director

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3. Introduction and Specifications

The all-in-one Digital Amplifier DAD 141.1 is a universal device for any weighing, filling or loss-in-weight operation and for force measurements with strain gage sensors. The DAD141 is for DIN (TS35) rail mount.

To grant the quality and allow legal weighing the DAD141.1 is OIML R-76 approved (pending) and meet the MID E2 requirements to EMC.

The standard device includes all the communication facilities needed for industrial weighing, control and registration, i.e. analog current or voltage output (0/4…20 mA, 0…5V, 0…10V, -5V…+5V and -10V…+10V), Ethernet, RS 422/485 and logic I/O’s for direct control of valves or bars etc.

The device can be controlled either by the front keys, via RS 422/485 port or Ethernet port. 2 logic inputs and 3 logic outputs make complex control functions easy. The 3 logic outputs can be controlled external, too.

The device features fullfills multi-drop communications capability and can be programmed via a straightforward ASCII command set. It is theoreticaly possible to connect 256 nodes on a network using the type of RS485

transceivers the DAD 141.1 use. The addressing allow 255 units (1 to 255).

DAD 141.1 Specifications

Accuracy class

III

Test certificate according OIML R76

EU Type approved for 10000 intervals

AD converter

Delta-Sigma, ± 24 bit

Analog input range

±15 mV bipolar (± 3 mV/V @ 5 VDC excitation)

Minimum input sensitivity

0.2 μV/e (legal for trade); 0.05 μV/d (non legal for trade)

Linearity

< 0.001 % FS

Temperature effect on zero

< ±4 ppm/°K (typical < ±2 ppm/°K)

Temperature effect on span

< ±8 ppm/°K (typical < ±4 ppm/°K)

Excitation

5 V DC, load cell(s) resistance 50 - 2000 ohms; 6 wire technic

Conversion rate

Max. 600 values/second, selectable in 8 steps

Resolution external

± 600 000 counts @ ± 3 mV/V input signal

CALIBRATION & WEIGHING FUNCTIONS

Calibration

Electronical calibration in mV/V (eCal) or with test weight(s)

Digital low pass filter

FIR Filter 2.5 to 19.7 Hz or IIR Filter 0.25 to 18 Hz - adjustable in 8 steps

Weighing functions

Zero, gros, tare, net, filter, etc.

Application modes

None automatic weighing instrument (NAWI) or triggered measurement

Communication & Setup

Communication ports

RS 422/485 and Ethernet

Setup & Calibration

Panel buttons or Windows software ‘DOP 4’ or smartphone App ‘AnDOP’

Display

6 digit 7 segments, green LED’s, 5.08mm, 8 status LED green, spectral filter 565 nm for improved contrast

Keyboard

4 pcs, Ø 3mm robust, for setup / calibration, zero, tare

Power supply

12 ... 24 V DC ±10 %, < 4 W

Environmental Conditions

Operating temperature

-15 °C to +55 °C at maximal 85% rh, non condensing

Storage temperature

-30 °C to +70 °C

Enclosure & protection

Plastic housing, for DIN rail mount (TS35) , protection IP40

Dimensions and weight

120 x 105 x 22.5 mm (H x L x W), weight approx. 170 g

EMC performance

EN61326 according to MID E2 for industrial applications (in full accordance with 2004/22/EC)

Vibration resistance

2.5g @ operation, 5g @ storage

Serial Interface

RS 422/485, 9600 ... 115200 Baud – half/full duplex

Protocol & Address range

ASCII; address range 1 … 31

Modbus RTU

Binary data

Ethernet interface

RJ45, 10/100 Mbit/s, isolated

Ethernet TCP/IP – protocol & port

protocol ASCII, TCP port 23

Modbus TCP – protocol & port

Embedded in TCP/IP packages, protocol binary data, TCP port 502

IP address

Setup via serial port or panel buttons – Factory default: 192.168.0.100

Analog current output

0 – 20mA or 4 – 20mA, 500ohm, isolated or

Analog voltage output

0 – 10V, 0 – 5V, ±5V, ±10V, 10kohm, isolated

Digital logic inputs

2 inputs (10 – 30V, 1 – 3mA), commond ground, isolated

Digital logic outputs

3 outputs (semiconductor relais) 30 V DC/AC, 0.5 A, common ground, isolated

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4. Communications and Getting started

4.1. Serial Interface

Communicating with the digital amplifier DAD 141.1 is carried out via serial RS 422/485 port. The data format is the familiar 8/N/1 structure (8 data bits, no parity, 1 stop bit). Available baud rates of RS 422/485 port are as follows: 9600, 19200, 38400, 57600 or 115200 baud.

Factory default: 115200 baud

4.2. Command Language

The command set of the DAD 141.1 is based on a simple ASCII format (2 letters). This enables the user to setup the device, get results or check parameters.

Example: DAD 141.1 is connected via the RS 485 port to a PC / PLC system. You want to get the identity, firmware version or net weight.

Remark: In this manual means: “_“ Space in the setup command and “ “ Enter (CR); sending of a linefeed (LF) is not required and will be ignored by the device if neccessary.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

ID

D:1410

identity of the active device

IV

V:0101

Firmware version of the active device

GN

N+123.45

Net weight with algebraic sign; decimal

point is fixed as setup with command DP

4.3. Baud Rate

For baud rate setup use command BR, see chapter 10.10.3.

Factory default: 115200 baud

4.4. Getting Started Via RS422/485

You will require:

 PC or PLC with a RS 422/485 communication port  A load cell / scale with test weights or a load cell simulator  A 12-24 VDC power supply capable of delivering approximately 200mA for each DAD 141.1

and load cell(s)

 One or more DAD 141.1  A suitable ASCII communication software **

Refer to the wiring diagrams in chapter 5.

You can easily communicate between a PC and a DAD 141.1 using programs such as Procomm, Telemate, Kermit, HyperTerminal or HTerm etc.

Additional the powerful software DOP 4 with graphical user interface and oscilloscope function for the operating systems Windows XP/Vista/7/8 is available.

Hint: A download of a new firmware version can be done with the software H&B programmer 3.0 (or later). The download can be done via RS485 at a baud rate of 115200 or via Ethernet interface.

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4.5. Getting Started Via Ethernet Interface

You will require:

 PC or PLC with an Ethernet port  A load cell / scale with test weights or a load cell simulator  A 12-24 VDC power supply capable of delivering approximately 200mA for each DAD 141.1

and load cell(s)

 One or more DAD 141.1 in the Ethernet LAN  Ethernet TCP/IP, protocol ASCII, TCP port 23  Modbus TCP, embedded in TCP/IP packages, protocol binary data, TCP port 502

The factory default TCP/IP address of DAD 141.1 is 192.168.0.100. You can change the address in the menu 8.6 (chapter 7.10) via front panel or via the command NA (network address).

In case you have your DAD 141.1 connected in a LAN (local area network), which offers additional WLAN (wireless local area network) access, we offer you the Smartphone App ‘AnDOP’ for OS Android. This ‘State Of The Art’ software offers you an easy access to the DAD 141.1 like:

- Display of gros, net and average value

- Proceed a calibration

- Change of setup

- Data recording of static & dynamic measurements

- Recorded data showing as graph.

4.6. Modbus TCP or Modbus RTU

The DAD 141.1 supports both, Modbus RTU (via RS422/485 port) and Modbus TCP (via Ethernet port).

 Modbus TCP, embedded in TCP/IP packages, protocol binary data, TCP port 502  Modbus RTU (binary data).

For Modbus communication please use the separate manual. In this manual you find only for each command the corresponding Modbus Index. In case of no index, the command is not available for Modbus use.

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5. Hardware and Wiring

5.1. Housing & Terminals

5.2. Terminals Load Cell Connection

Colour code of standard Flintec load cells

5.3. Load Cell Connection

The load cell wiring should be made carefully before energizing to avoid damages to the amplifier and the load cells. The input resistance of the load cells that you want to connect should be ≥ 50 Ω (ohms).

In case of using a load cell / scale with 4 wire cable, you have to short-circuit (bridge) the pins 1 & 2 and 6 & 7. 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).

DAD 141.1

Load cell

input

Function

Pin no.

+ Exc

+ Excitation for load cell

+ Sen

+ Sense for load cell

+ Inp

+ Signal of load cell

Shld.

Shield load cell

– Inp

– Signal of load cell

– Sen

– Sense for load cell

– Exc

– Excitation for load cell

Scale informations for ‘legal for trade‘ Green ‘M‘: Type approval OIML R76

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5.4. Terminals Power Supply

Depending on the grounding concept of the plant/scale, terminal 20 or 21 has to be connected to terminal 22. The power supply must be able to support about 200mA per DAD 141.1.

5.5. Terminals Serial Port RS 422/485

The RS 422/485 port can be used for communication with a PC or PLC system.

5.6. Ethernet Port

5.7. Seal Switch

DAD 141.1

422/485

Function

Pin no.

+ Rx

+ Receive Data

- Rx

- Receive Data

- Tx

- Transmit Data

+ Tx

+ Transmit Data

GND

Signal ground RS422/485

The Ethernet port (29, RJ45) can be used for communication in a local area network (LAN) with 10/100 Mbit/s

The Ethernet port supports:

- Ethernet TCP/IP, protocol ASCII, TCP port 23

- Modbus TCP, embedded in TCP/IP packages, protocol binary data, TCP port 502.

The default IP address is 192.168.0.100, which can be changed by the user.

DAD 1411

Power in

Function

Pin no.

Power supply +12..24 V DC

Common ground / 0 V DC

Shld.

Chassis ground

Setup or changes of calibration can only be performed with an open seal switch (28). Changes lead to get a new TAC value of + 1.

Running a legal for trade application needs the jumper connected to the switch pins and a seal. A broken seal shows up changes of calibration, which are not allowed.

Protected commands see next page.

The serial port supports two protocols:

- ASCII (characters) and

- Modbus RTU (binary data).

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Traceable Access Code (TAC) protected calibration commands

In case the seal switch is closed, the following commands or menus can’t be proceeded:

- Calibration Zero

- Calibration Gain

- Calibration Absolute Zero

- Calibration Absolute Gain

- Calibration Minimum

- Calibration Maximum

- Zero Tracking

- Zero Range

- Display Step Size

- Decimal Point

- Calibration Save

- Factory Default

- Non Volatile Tare

- Non Volatile Zero

- Initial Zero @ power ON

5.8. Logic Inputs & Outputs

The DAD 141.1 offers 2 isolated logic inputs and 3 isolated logic outputs. The 2 inputs can e.g. get the function act as the ZERO or TARE button, see chapter 10.8.1. The 3 outputs act as switches for setpoints with hysteresis, switch behavior etc. Several bases can be used like

net weight, peak weight value or average value, see chapter 10.9.x.

5.9. Analog Outputs

The DAD 141.1 offers 2 isolated analog outputs for current and voltage. For your application you can choose one of the six modes like:

 4 to 20mA / 0 to 20mA  0 to +5V / 0 to +10V  -5 to +5V / -10 to +10V.

DAD 141.1

Logic In- /

Output

Function

Pin no.

8 0 ‘High’ Logic input 0

9 1 High’ Logic input 1

Common ‘low’ logic input 0/1

11 0 ‘High’ Logic output 0

12 1 ‘High’ Logic output 1

13 2 High’ Logic output 2

Common ’low’ logic output 0/1/2

DAD 141.1

Analog

Outputs

Function

Pin no.

0 Com

Signal ground analog output

+/- Vout

Voltage output

Iout

Current output

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6. Menu Structure Setup Keybord

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7. Setup Via Front Panel Keyboard

7.1. Keyboard Buttons

This is the ZERO button. This button can be used for zeroing in the scale status NO Motion within the setup limits and to clear TARE.

This is the TARE button. This button can be used for taring the scale in status NO Motion.

The two UP/DOWN buttons will be used for setup via the menu.

7.2. Use of Keyboard Buttons

Press the UP or DOWN button for more than 3 seconds to enter the setup menu of front panel. In setup menu use these buttons to select one of the menus 1 to 8 and make your selection in the sub-menus or to setup single characters of the display.

Remark: To enable calibration – menu 1, 2 and 3 – you have to remove the jumper

of seal switch (28). The TAC counter will increase by one after changes. Enter in menu X to the different sub-menus of X. After choosing the setting with the UP or

DOWN button, use this key again for storing. This is the ENTER button.

To leave menu X or sub-menu of X. Leave with: press 1x TARE button for back to menu X.1 – 1st level or press 2x TARE button for back to menu X

Menu 7.0.1.1 – Setup

Value 001000

Menu X

Select with UP / DOWN buttons

Enter with ZERO button

Leave with TARE button

X.1 Menu X - 1st level

Enter with ZERO button

Select with UP / DOWN buttons

Back with ZERO button

Leave with TARE button

X.1.1

Menu X - 2nd level

Enter with ZERO button

Select with UP / DOWN buttons

Enter with ZERO button

Leave with TARE button

X.1.1.1

Menu X - 3rd level

Enter with ZERO button

Select with UP / DOWN buttons

Enter with ZERO button

Use UP / DOWN buttons for single characters

0 0 1 0 0 0

Use TARE button for next number

x x x x x x

Back with ZERO button

Leave with: 1x TARE button back to menu X.1 2x TARE button back to menu X

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7.3. Menu 1 – System Zero

Remark: Activate a new calibration with 1x Power OFF & ON !

ZERO setup (Menu 1.1 to 1.4) TAC protected – see chapter 4.12

1.1 Automatic Zero Tracking - Enable / Disable (command ZT)

Setting range: 0 … 255 d Disabled @ 00000, no ZERO Tracking

Enabled @ 00001 or higher (max 00255)

Setting 00001 sets a zero tracking range of ±0.5d

Setting 00002 up to 00255 sets a zero track range of ±1d up to ±127.5d, independent of decimal point setting

1.2 Calibrate system ZERO - gravimetric by weight / load (command CZ)

Display shows the actual input signal in mV/V. Press ENTER button to store ZERO.

Remark: Scale should/must be unloaded.

1.3 Calibrate system ZERO - electronic by mV/V value (command AZ)

Use the UP/DOWN & MOVE RIGHT keys to setup the mV/V value at which the device should read ZERO

1.4 System ZERO & TARE function

1.4.1

Store TARE value non volatile: ON / OFF (command TN)

- ON: store non-volatile @ power OFF

- OFF: delete @ power OFF

1.4.2

Store ZERO value non volatile: ON / OFF (command ZN)

- ON: store non-volatile @ power OFF

- OFF: delete @ power OFF

1.4.3

Initial ZERO @ power ON: ON / OFF (command ZI)

- ON: proceed initial Zero @ power ON

- Range is ±10% of Max

1.4.4

ZERO range (increments) (command ZR)

Set the zero setting range in divisions. The setting is independent of decimal point setting. Disabled @ 00000, no ZEROing possible Enabled @ 00001 or higher (max 999999)

In a legal for trade application, the standard value is ±2 % of Max. The setup for a scale with 3 000e is i.e.:

- Max (CM) = 1 500 kg

- Step Size (SZ) = 0.5 kg

- Zero Range (ZR) of ±2 % = ± 30 kg, which is ± 60 d.

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7.4. Menu 2 – System Span

Remark: Activate a new calibration with 1x Power OFF & ON !

SPAN setup (Menu 2.1 to 2.4) TAC protected – see chapter 4.12

2.1 Set SPAN Calibration value (command CG)

Set display value equivalent to calibration weight or to mV/V value derived from load cell(s) test data.

2.2 Calibrate system SPAN - gravimetric by weight / load

- Display shows the actual input signal in mV/V.

- Apply test weight equivalent to calibration value (2.1).

- Press ENTER button to store new SPAN signal.

2.3 Calibrate system SPAN - electronic by mV/V input (command AG)

Use the UP/DOWN & MOVE RIGHT keys to setup the mV/V value at which the device should read SPAN.

- Press ENTER button to store new SPAN signal.

2.4 Display the input signal in mV/V

- This function displays the actual input signal of the load cell(s).

2.5 Display the firmware version, e.g. 1.10 (command IV)

- Read and display the firmware version.

2.6 Display the actual TAC value, e.g. 34 (command CE)

- Read and display the TAC value of the actual calibration.

7.5. Menu 3 – Display

Remark: Activate a new calibration with 1x Power OFF & ON !

Display setup (Menu 3.1 to 3.3) TAC protected – see chapter 4.12

3.1 Display limits - Overrange / Underrange (commands CM/CI)

3.1.o

Display overrange limit (maximum value +999999)

Use the UP/DOWN & MOVE RIGHT keys to setup the maximum display value, above which the display shows over range (all dashes in the top of the display).

3.1.U

Display underrange limit (minimum value -999999)

Use the UP/DOWN & MOVE RIGHT keys to setup the minimum display value, above which the display shows under range (all dashes in the bottom of the display).

3.2 Display step size - in digits [d] (command DS)

- choose one out of 1, 2, 5, 10, 20, 50, 100, 200, 500

3.3 Decimal point position on the display (command DP)

- choose one out of 0, 0.0, 0.00, 0.000, 0.0000, 0.00000

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7.6. Menu 4 – Filter & Motion Detection

Remark: Activate a new setup with 1x Power OFF & ON !

Digital filter & No Motion setup (Menu 4.1 to 4.4)

4.1 Low pass filter cut off frequency (command FL)

- Settings: 0 - 8 with UP/DOWN buttons

4.1.x

Cut off frequency:

IIR mode

FIR mode

4.1.0

No digital filter

4.1.1

18 Hz

19.7 Hz

4.1.2

8 Hz

9.8 Hz

4.1.3

4 Hz

6.5 Hz

4.1.4

3 Hz

4.9 Hz

4.1.5

2 Hz

3.9 Hz

4.1.6

1 Hz

3.2 Hz

4.1.7

0.5 Hz

2.8 Hz

4.1.8

0.25 Hz

2.5 Hz

4.2 Digital filter Mode - IIR or FIR (command FM)

- Choose IIR or FIR

4.3 Update rate and averaging (command UR)

4.3.x

Averaging (from 1 to 128 readings)

4.3.0

0 - each reading

4.3.1

1 - average of 2 readings

4.3.2

2 - average of 4 readings

4.3.3

3 - average of 8 readings

4.3.4

4 - average of 16 readings

4.3.5

5 - average of 32 readings

4.3.6

6 - average of 64 readings

4.3.7

7 - average of 128 readings

4.4 Motion detection

4.4.1

No motion range (value range from 1 to 65 535 d) (command NR)

Weight value changes within this range will be considered as 'stable'

4.4.2

No motion time (value range from 1 to 65 535 ms) (command NT)

Time span for the no motion detection where the signal has to be 'stable'

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7.7. Menu 5 – Analog Output

Remark: Activate a new setup with 1x Power OFF & ON !

Analog output setup (Menu 5.1 to 5.5)

5.1 Weight value for minimum analog output (command AL)

- Set the weight value which corresponds to minimum output

Examples for scale 0 … 3 000kg

Minimum 0kg or with 600kg preload

- output mode 4 … 20mA:

0kg = 4mA - setting 00000

600kg = 4mA - setting 00600

- output mode 0 … 20mA:

0kg = 0mA - setting 00000

600kg = 0mA - setting 00600

5.2 Weight value for maximum analog output (command AH)

- Set the weight value which corresponds to maximum output

Examples for scale 0 … 3 000kg

Maximum 3 000kg

- output mode 4 … 20mA:

3 000kg = 20mA - setting 03000

- output mode 0 … 20mA:

3 000kg = 20mA - setting 03000

5.3 Analog output base (command AA)

gros - analogue output follows Gross value

net - analogue output follows Net value

PEA - analogue output follows Peak value (Maximum)

AUEr - analogue output follows Average value

HoLd - analogue output follows Hold value

PP - analogue output follows Peak - Peak value

UALL - analogue output follows Valley value (Minimum)

dISP - analogue output follows Display value

oFF - analogue output is switched OFF

5.4 Analog output mode (command AM)

4_20

4 to 20mA

0_20

0 to 20mA

0 _ 5

0 to +5V

0 _ 10

0 to +10V

- 5 _ 5

-5 to +5V

- 10 _ 10

-10 to +10V

5.5 Setup of test signal current or voltage analog output

The test signal, independent of the measuring signal, is based on the choosen mode in menu 5.4. The setup uses 6 digits, e.g. 004.000 for 4mA (decimal point position is fixed). For each mode you can use the output range plus -/+ 0.1 ! Setup of a negative value via left figure/“-“ sign (left status LED).

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7.8. Menu 6 – Logic Inputs

Remark: Activate a new setup with 1x Power OFF & ON !

Logic input setup (Menu 6.0 to 6.1)

6.0 Logic Input "0" (command AI’n‘ – n=0)

6.0.1

Functions (choose one from 00 to 15 with 'up'/'down' buttons)

00 - Input "0" has no function

01 - Input "0" acts as Zero button

02 - Input "0" acts as Tare button

03 - Input "0" acts as Up arrow button

04 - Input "0" acts as Down arrow button

05 - Input "0" starts the Trigger function

06 - Input "0" displays the Average value

07 - Input "0" displays the Peak value (maximum)

08 - Input "0" deletes the Peak value (maximum)

09 - Input "0" displays the Hold value

10 - Input "0" displays the Peak to Peak value

11 - Input "0" displays the Valley value (minimum)

12 - Input "0" disables the buttons

13 - Input "0" stores the actual weight (Hold value)

14 - Input "0" tares the displays and deletes all other values

15 - Input "0" turn off display

6.1 Logic Input "1" (command AI’n‘ – n=1)

6.1.1

Functions (choose one from 00 to 15 with 'up'/'down' buttons)

00 - Input "1" has no function

01 - Input "1" acts as Zero button

02 - Input "1" acts as Tare button

03 - Input "1" acts as Up arrow button

04 - Input "1" acts as Down arrow button

05 - Input "1" starts the Trigger function

06 - Input "1" displays the Average value

07 - Input "1" displays the Peak value (maximum)

08 - Input "1" deletes the Peak value (maximum)

09 - Input "1" displays the Hold value

10 - Input "1" displays the Peak to Peak value

11 - Input "1" displays the Valley value (minimum)

12 - Input "1" disables the buttons

13 - Input "1" stores the actual weight (Hold value)

14 - Input "1" tares the displays and deletes all other values

15 - Input "1" turn off display

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7.9. Menu 7 – Logic Outputs

Remark: Activate a new setup with 1x Power OFF & ON !

Logic output setup (Menu 7.0 to 7.2)

7.0 Logic Output "0"

7.0.1

Setpoint "0"

7.0.1.1

Setup of the Setpoint value (command S’n‘ – n=0)

Permitted values +/- 999 999

7.0.1.2

Setup the Polarity (switch logic) ON or OFF (command P’n‘ – n=0)

Use the UP/DOWN buttons for "on" / "oFF"

7.0.2

Hysterisis value "0" (± 'n') (command H’n‘ – n=0)

Permitted values +/- 9 999

7.0.3

Base for Setpoint "0" (command A’n‘ – n=0)

gros - Gross value

net - Net value

PEA - Peak value (Maximum)

AUEr - Average value

HoLd - Hold value

PP - Peak to Peak value

UALL - Valley value (Minimum)

Error - Error 4 or 5

oFF - set output "1" OFF

7.0.4

Test logic output "0" (Use the UP/DOWN buttons)

Open/Close contacts using the keyboard

7.0.4.0

Output is OFF

7.0.4.1

Output is ON

7.1 Logic Output "1" (commands S’n‘, P’n‘, H’n‘, A’n‘ – n=1)

As per section 7.0 - but for logic output "1"

7.2 Logic Output "2" (commands S’n‘, P’n‘, H’n‘, A’n‘ – n=2)

As per section 7.0 - but for logic output "1"

7.3 Hold Time for all the Logic Outputs 0, 1 and 2 (command HT)

Permitted value range is from 0 to 65 535 ms

The signal has to exceed the setpoint limit continuously at least for this time period before a switch event will be initiated.

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7.10. Menu 8 – Data Communication

Remark: Activate a new setup with 1x Power OFF & ON !

Data Communication setup (Menu 8.1 to 8.9)

8.1 Baud Rate for COM Port RS 422/485 (use the UP/DOWN buttons) (command BR)

9600 Baud

19200 Baud

38400 Baud

57600 Baud

115200 Baud

8.2 Select RS 422 or RS 485 (use the UP/DOWN buttons)

422 = RS 422 Interface for single DAD 141.1 application

485 = RS 485 Interface for multiple DAD 141.1 application in a bus

8.3 Set Device Address COM Port (RS 422/485) (command AD)

- Set device address for multi-drop to 001 … 255

- Set device address for single point to point applications to 000

- Factory Default: 000

8.4 Select Auto-transmit mode (use the UP/DOWN buttons)

gros - Gross value (command SG)

net - Net value (command SN)

AUEr - Average value (command SA)

SAP - ADC value

ALL - Data string with Gross, Net and Status (command SW)

PEA - Peak value (Maximum) (command SM)

HoLd - Hold value (command SH)

UALL - Valley value (Minimum) (command SV)

PP - Peak to Peak value (command SO)

oFF - set output "1" OFF

8.5 Transmission delay Tx @ COM Port (required for some PLCs) (command TD)

- Transmission delay from 000 … 255 milliseconds

8.6 IP-Address of Ethernet Interface (command NA)

- in decimal notation per 3 characters

- Factory default: 192.168.0.100

8.6.x

Example for factory default - AAA.BBB.CCC.DDD

8.6.1

AAA

000192

8.6.2

BBB

000168

8.6.3

CCC

000000

8.6.4

DDD

000100

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Menu 8 – Data Communication / Continuation

Remark: Activate a new setup with 1x Power OFF & ON !

Data Communication setup (Menu 8.1 to 8.9)

8.7 Parity Check Modbus RTU only (use the UP/DOWN buttons)

No – no parity

o – odd parity

e – even parity

8.8 Protocol Selection Serial Port (use the UP/DOWN buttons)

SER – ASCII protocol

RTU – binary data protocol

Remark: After changing the protocol, you have to re-start the DAD 141

8.9 Save or Restore user setup (use the UP/DOWN buttons) (commands SU / RU)

STORE – Store setup in EEPROM

RECALL – Restore setup from EEPROM

Remark: After RECALL, for activation you have to re-start the DAD 141.

7.11. Factory Default via Front Panel

While Power ON the DAD 141, press the both buttons UP & DOWN simultaneously for 2 or 3 seconds for setting the device to factory default.

Note: All settings will be deleted proceeding a factory default !

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7.12. Error Codes

Zero key is not enabled (chapter 7.3, menu 1.1)

Out of zero range. (You are trying to setazero which is greater than ± 2% of the upper display limit)

N/A

Input exceeded ± 3.3mV/V

Load cell connection fail

Requested value out of range

Display overload – see menu 3.1o

Display underload – see menu 3.1u

The Zero or Tare motion limit has been exceeded. Set Zero or Tare function disallowed. Review Zero and Tare motion limits set in menu 4.4.

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8. Examples

8.1. Example 1 – Calibration procedure using weights

3 Leg tank or silo fitted with 3 load cells of 1000kg; load cell signal @ 1000kg = 2 mV/V.

Dead load of tank / silo is 600kg. Live range is 1 500kg, step size is 0.5kg.

It is assumed that the load cell system is connected to the DAD 141.1 and the power is on. The maximum and minimum display values, display increment size and decimal point position should be defined prior to carrying out the calibration (See chapter 7.5 menu 3).

For this example the display maximum is defined as

1600.0kg, the display minimum is -200.0kg, the Display step size is 0.5kg.

Remember that all parameters of the menues 1.1 - 1.3, 2.1 - 2.3 and 3.1 - 3.3 can only be accessed or changed after remove the jumper on the seal switch pins (28).

a A scale calibration by using weight(s) can only be performed in the scale status ‘no motion‘. This requires in any case to check the settings of menu 4.

Recommendations for setup as follows:

- Menu 4.1: set cut off frequency to 4.1.7 = 0.5Hz

- Menu 4.2: choose IIR filter

- Menu 4.4.1: set no motion range e.g. to 2, which means for this example 0.2kg

- Menu 4.4.2: set no motion time to 1000, which means 1000ms or 1s

In case of outdoor application or indoor with a lot of mechanical noise from the floor/ground, may be you have to change the ‘no motion‘ settings.

b Go to Menu 3.2 (display step size) by using the UP/DOWN and ZERO keys. The display shows the actual step size, e.g. 1. Now you can change step size by using the UP/DOWN keys and set to 5. Press the ZERO key to store & leave menu point. This procedure defines the step size to 5, which leads with the setup of decimal point to 0.5kg steps.

c Go to Menu 3.3 (decimal point position) by using the UP/DOWN and ZERO keys. The display shows the actual decimal point, e.g. 0.0. Now you could change decimal point position by using the UP/DOWN keys, but in this example we keep the setup. Press the ZERO key to store & leave menu point. This procedure defines the decimal point position to 0.0, which leads to weight readings of e.g. 498.5kg.

d Go to Menu 1.2 by using the UP/DOWN and ZERO keys. The display shows the actual mV/V value, e.g. 0.4107. Make sure that the tank/silo is empty or at the point where you want the display to read zero. Press the ZERO key to set the display to read 0000.0kg. This procedure defines the actual zero calibration point. Leave this menu point with ZERO key.

e Go to Menu 2.1 by using the UP/DOWN and ZERO keys. Set the display to read the span value of the calibration weight(s) applied. For this example, if the calibration applied load is 750kg, set the display to read 750.0. By using the UP/DOWN and TARE keys you have to setup each number of the 6 digit display to 00750.0. Press now ZERO key for storage. This procedure defines the span calibration value. Leave this menu point with ZERO key.

f Go to Menu 2.2. by using the UP/DOWN and ZERO keys. Apply the calibration weight(s) to the weighing system. The display will show the actual input signal in mV/V, e.g. 0.9087. Press the ZERO key to set the display to read 750.0kg. The gravimetric calibration is done. Leave this menu point with ZERO key.

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g The last point for this example are the settings of over/under range. Go to Menu 3.1 (over/under range) by using the UP/DOWN and ZERO keys. Press ZERO key again for setup over range (3.1.o) or additional with UP key under range (3.1.U). The display shows in both cases 099999.9. By using the UP/DOWN and TARE keys you have to setup each number of the 6 digit display to 01600.0 for over range and 00200.0 for under range. As default, the under range value is always negative, shown trough the ‘-‘ LED in the display (left lower corner). Leave each menu point with the ZERO key. This procedure defines the over range to 1600.0, which leads @ weight readings of >1600.0kg to all upper LEDs of the 6 display numbers. This procedure defines the under range to -200.0, which leads @ weight readings of <-200.0kg to all lower LEDs of the 6 display numbers.

Press the TARE key two or three times and the DAD 141.1 will be back in weighing mode. Calibration is now completed and stored. Please switch 1x OFF/ON for new TAC value.

Remark

After calibration procedure you can adjust the filter settings back to your application. As rule of thumb you can calculate the weight/force true value of nearly100% as 1/cut off frequency. Examples:

- fcut = 0.5Hz means it takes about 2 seconds for the true value – the value will increase while these 2 seconds to the true value.

- fcut = 8Hz means it takes about 0.125 seconds for the true value – the value increase take only 125 milliseconds.

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8.2. Example 2 – Calibration procedure using load cell’s mV/V sensitivity

3 Leg tank or silo fitted with 3 load cells of 1000kg; load cell signal @ 1000kg = 2 mV/V.

Dead load of tank / silo is 600kg. Live range is 1500 kg, step size is 0.5kg.

For this example the display maximum is defined as

1600.0kg, the display minimum is -200.0kg, the

Display step size is 0.5kg.

Remember that all parameters of the menues 1.1 - 1.3, 2.1 - 2.3 and 3.1 - 3.3 can only be accessed or changed after remove the jumper on the seal switch pins (28).

a A scale calibration by using weight(s) can only be performed in the scale status ‘no motion‘. This requires in any case to check the settings of menu 4.

Recommendations for setup as follows:

- Menu 4.1: set cut off frequency to 4.1.7 = 0.5Hz

- Menu 4.2: choose IIR filter

- Menu 4.4.1: set no motion range e.g. to 2, which means for this example 0.2kg

- Menu 4.4.2: set no motion time to 1000, which means 1000ms or 1s

In case of outdoor application or indoor with a lot of mechanical noise from the floor/ground, may be you have to change the ‘no motion‘ settings.

d Go to Menu 1.3 (cal. zero in mV/V) by using the UP/DOWN and ZERO keys. The display shows the actual mV/V value, e.g. 0.4107. Make sure that the tank/silo is empty or at the point where you want the display to read zero. Press the ZERO key to set the display reading to 0000.0kg. This procedure defines the actual zero calibration point. Leave this menu point with ZERO key.

In case you want to setup absolute zero to 00.0000mV/V, you can do this via ZERO key and using UP/DOWN and TARE keys etc.

e Go to Menu 2.1 by using the UP/DOWN and ZERO keys. Set the display to read the span value @ summary of load cell capacity. For this example, we use 3 load cells with 1000kg capacity each, set the display to read 3000.0. By using the UP/DOWN and TARE keys you have to setup each number of the 6 digit display to 03000.0. Press now ZERO key for storage. This procedure defines the span calibration value. Leave this menu point with ZERO key.

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f Go to Menu 2.3. by using the UP/DOWN and ZERO keys. The display shows 00.000mV/V. The load cells signal @ 3000kg is e.g. 2.0123mV/V ((signal #1 + signal #2 + signal #3) / 3). By using the UP/DOWN and TARE keys you have to setup each number of the 6 digit display to 02.0123. Press the ZERO key to set the display to read 3000.0kg. The electronic span calibration is done. Leave this menu point with ZERO key.

The mV/V setting conform to our example with 1500kg live range means, we would have to setup only

01.0062 – which is 50% of mV/V @ 3000kg.

g The last point for this example are the settings of over/under range. Go to chapter 7.4 menu 3.1 (over/under range) by using the UP/DOWN and ZERO keys. Press ZERO key again for setup over range (3.1.o) or additional with UP key under range (3.1.U). The display shows in both cases 099999.9. By using the UP/DOWN and TARE keys you have to setup each number of the 6 digit display to 01600.0 for over range and 00200.0 for under range. As default, the under range value is always negative, shown trough the ‘-‘ LED in the display (left lower corner). Leave each menu point with the ZERO key. This procedure defines the over range to 1600.0, which leads @ weight readings of >1600.0kg to all upper LEDs of the 6 display numbers. This procedure defines the under range to -200.0, which leads @ weight readings of <-200.0kg to all lower LEDs of the 6 display numbers.

Press the TARE key two or three times and the DAD 141.1 will be back in weighing mode. Calibration is now completed and stored. Please switch 1x OFF/ON for new TAC value.

Remark

After calibration procedure you can adjust the filter settings back to your application. As rule of thumb you can calculate the weight/force true value of nearly100% as 1/cut off frequency. Examples:

- fcut = 0.5Hz means it takes about 2 seconds for the true value – the value will increase while these 2 seconds to the true value.

- fcut = 8Hz means it takes about 0.125 seconds for the true value – the value increase take only 125 milliseconds.

Practicle Hint

A mix between gravimetric & electronic calibration is possible, too. For silos or tanks can a complete gravimetric calibration lead to a problem when you have to apply e.g. 50 tons. In such a case we recommend to calibrate zero gravimetrically (dead load of silo / tank) and span electronically (average mV/V values of load cells).

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9. Commands – Overview

Command

Short description

Parameter value

Page

Get/set analog output action (base)

0 through 8

Communication: Device Address

0...255

Absolute gain calibration

± 32000

Get/set analog high

-999999 to 999999

AI’n’

Assign Input ‘n’ to 1 out of 15 different functions/base

0 to 15

Get/set analog low

-999999 to 999999

Analog Output Mode Current / Voltage

0 to 5

A’n’

Action for Setpoint ‘n’: choose 0 of 8 different base for setpoint ‘n’

0 to 8

Save analog output parameters

none

Absolute zero point calibration

± 32000

Communication: Baud Rate

9600…115200 baud

Calibration: Open Calibration Sequence; Read TAC Counter

0...65535

Calibration: Set Calibration Gain (Span) at Load > Zero

1...999999

Calibration: Minimum Output Value

–999999...0

Communication: Close Device

None

Calibration: Set Maximum Output Value

1...999999

Save the Calibration Data (CM, CI, DS, DP, etc.) to the EEPROM

None

34, 49

Calibration: Set Calibration Zero Point – Scale Without Load

None

Calibration: Set Decimal Point Position

0...5

Calibration: Set Display Step Size

1, 2, 5, 10, …, 500

Communication: Set full-duplex (1) or half duplex (0)

0 or 1

Factory default settings: Write Data to the EEPROM (TAC protected)

None

Read / modify filter mode: IIR (0) or FIR (1)

0 or 1

Digital low pass filter: Filter Cut-off Frequency

0...8

Output: Get Triggered Average Value

None

41, 50

Output: Get Gross Value

None

Get Hold Value

None

Retrieves an image file from the DAD141.1’s EEPROM

None

Output: Get Net Value

None

Get Peak (Maximum) Value

None

Get Peak tp Peak Value

None

Output: Get ADC Sample Value

None

Output: Get Tare Value

None

Get Valley Value

None

Output: Get Data String “Net/Gros/Status“

None

H’n‘

Hysteresis for Setpoint H0 (S0) or H1 (S1) or H2 (S2)

-9999...+9999

Trigger function: Hold time for Violation of Setpoint Limit

0...65535 ms

Device information: Identify Device

None

Hardware version

None

Logic input: for each Input Status 0 or 1

0000…0011

Logic output: for each Output Status 0 or 1

0000…0111

Device information: Identify Device Status

None

Device information: Identify Firmware Version

None

Trigger function: Measuring Time for Averaging

0...3000 ms

Network Address <aaa.bbb.ccc.ddd>

e.g. 192.168.0.100

Motion detection: No-motion Range

0...65535 d

Motion detection: No-motion Time Period

0...65535 ms

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Command

Short description

Parameter value

Page

Output Mask – to control hy host

0000…0111

Open Net weight of device ‘n’

0…255

Open Device

0…255

Download a saved image file to the DAD 141.1’s EEPROM

Image data string

P’n’

Polarity of Setpoint ‘n’, n= 0, 1 or 2: On / Off

0 or 1

Reset Peak (Maximum) Value

None

Device information: Read serial number

None

Scale function: Reset Tare and Switch to Gross Indication

None

Scale function: Reset Zero Point

None

Auto-transmit: Send Triggered Average Value automatically

None

42, 51

Trigger function: Start Delay

0... 500 ms

Auto-transmit: Send Gross Value continuously

None

Auto-transmit: Send Hold Value

None

Auto-transmit: Send Peak (Maximum) Value

None

Auto-transmit: Send Net Value continuously

None

S’n‘

Setup of Setpoints S0, S1 and S2

-999999...+999999

Auto-transmit: Send Peak to Peak Value

None

Reset Firmware (Warm Start)

None

Save the Setpoint Data (S’n’, H’n’, P’n’, A’n’) to the EEPROM

None

Scale function: Set Tare and Switch to Net Indication

None

Auto-transmit: Send Valley Value

None

Auto-transmit: Send Data String „Net/Gross/Status“ continuously

None

Scale function: System Zero Point

None

Communication: Transmission delay

0…255 ms

Trigger function: Trigger on Rising Edge (1) or Falling Edge (0)

0 or 1

Trigger Hold (save the actual weight/reading)

Trigger function: Averaging Time for Automatic Taring

0...65535 ms

Trigger function: Trigger Level

0...999999

Non Volatile Tare value ON/OFF @ power OFF

0 or 1

Trigger function: Software Trigger

None

Trigger function: Window for Automatic Taring

0...65535

Update Rate (average of 2 exp. ‘n’ values – 2 exp 7 = 128)

0...7

Save the Setup Data (FL, NR, NT, AD, BR, DX) to the EEPROM

None

Initial Zero Setting ON/OFF

0 or 1

Non Volatile Zero Value ON/OFF @ power OFF

0 or 1

Calibration: Zero Range

0...999999

Zero Tracking – disable (0), enable (1 – legal for trade) or 2 …255

0…255

33 New Commands

Store User Setup incl. calibration non-volatile in EEPROM

None

Restore User Setup to DAD 141.1

None

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10. Commands Description

For better clarity, all commands are divided into groups as described on the following pages. Each command has to be completed with a CR (Enter), which is shown in the following tables as “ “.

For each command, the Modbus Index is displayed in brakets [ Index 0xNNNN ] and explained in the separate manual ‘Modbus Communication’. If case of no index mentioned, the command is not available for Modbus RTU or TCP.

10.1. System Diagnosis Commands – ID, IH, IV, IS, SR, RS

Use these commands you get the DAD 141.1 type, firmware version or device status. These commands are sent without parameters.

10.1.1. ID Get Device Identity [ Index 0x202C ]

Master (PC / SPS) sends

Slave (DAD 141.1) responds

ID

D:1410

The response to this request gives the actual identity of the active device. This is particularly useful when trying to identify different device types on a bus.

10.1.2. IH Get Hardware Version

Master (PC / SPS) sends

Slave (DAD 141.1) responds

IH

H:14100101FFFFFFFFFFFFFF…

10.1.3. IV Get Firmware Version [ Index 0x202E ]

Master (PC / SPS) sends

Slave (DAD 141.1) responds

IV

V:0104

The response to this request gives the firmware version of the active device.

10.1.4. IS Get Device Status [ Index 0x2030 ]

Master (PC / SPS) sends

Slave (DAD 141.1) responds

IS

S:067000 (example)

The response to this request comprises of two 3-digit decimal values (001 and 000), which can be decoded according to the table below:

Leftmost 3-digit value

Rightmost 3-digit value

1 Signal stable (no motion)

1 (not used)

2 Zeroing action performed

2 (not used)

3 Tare active

3 (not used)

4 (not used)

8 (not used)

16 (not used)

32 (Setpoint-) output 0 active

32 (not used)

64 (Setpoint-) output 1 active

64 (not used)

128 (Setpoint-) output 2 active

128 (not used)

The example decodes the result S: 067000 (binary 01000011) as follows:

 Signal stable (no motion) [20 = 1, LSB]  Zeroing action performed [21 = 2]  Tare not active [= 0]

 Output 0 active [ = 0]  Output 1 active [26 = 64]  Output 2 not active [= 0]

Note: The bits that are not used are set to zero.

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10.1.5. SR Reset DAD 141.1 Firmware

Master (PC / SPS) sends

Slave (DAD 141.1) responds

SR

This command will respond with ‘OK’ and after maximum 400 ms perform a complete reset of the DAD 141.1. It has the same functionality as power OFF and ON again.

10.1.6. RS Read Serial Number [ Index 0x2034 ]

Issuing the RS command will return the current serial number in the format S+12345678.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

RS

S+00147301

Serial Number: 0147301

10.2. Calibration Commands – CE, CM, CI, DS, DP, CZ, CG, ZT, FD, ZR, ZI, AZ, AG, CS, SU, RU

10.2.1. CE Read TAC* Counter / Open Calibration Sequence [ Index 0x2204 ]

With this command you can read the TAC counter (*TAC = Traceable Access Code) or you can open a calibration sequence.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Calibration sequence active

This command must be issued PRIOR to any attempt to set the calibration parameters AG, AZ, CM, CI, DS, DP, CZ, CG, ZT, ZR, FD or CS. In legal for trade applications the TAC counter can be used to check if critical parameters have been changed without re-verification. After each calibration the TAC counter increases by 1.

10.2.2. CM Set Maximum Output Value [ Index 0x220C ]

This command is used to set up the maximum output value. Permitted values are from 1 to 999 999.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

CM

M+050000

Request: CM = 50000 d

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Calibration sequence active

CM 30000

Setup: CM = 30000 d

This value will determine the point at which the output will change to “ooooooo”, signifying over-range. Note: The range, in which a scale can be set to zero (SZ) or automatic zero tracking (ZT) is active, is as

standard +/- 2% of CM value. But with the settings of ZT (see 10.2.8) and/or ZR (see 10.2.10) you can change the behaviour.

Factory default: CM = 010009

10.2.3. CI Set Minimum Output Value [ Index 0x220E ]

This command is used to set up the minimum output value. Permitted values are from – 999 999 to 0.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

CI

I–010009

Request: CI = –10009 d

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Calibration sequence active

CI –100

Setup: CI = –100 d

This value will determine the point at which the output will change to “uuuuuuu”, signifying under-range.

Note: In bipolar applications (e.g. force- or torque measurements) this parameter defines the max. output value for input signals with negative sign.

Factory default: CI = –010009

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10.2.4. DS Set Display Step Size [ Index 0x2216 ]

This command allows the output to step up or down by a unit other than 1. Permitted values are 1, 2, 5, 10, 20, 50, 100, 200 and 500.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

DS

S+00002

Request: Step size 2

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Calibration sequence active

DS 50

Setup: Step size 50

Legal for trade applications allow for up to 10000 intervals. The allowed step size has to be considered.

Factory default: DS = 00001

10.2.5. DP Set Decimal Point Position [ Index 0x2214 ]

This command allows the decimal point to be positioned anywhere between leftmost and rightmost digits of the 5-digit output result. Permitted values are 0, 1, 2, 3, 4, 5. Position 0 means no decimal point.

Factory default: DP = 00000

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

DP

P+00003

Request: Position of decimal point 3

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Calibration sequence active

DP 0

Setup: no decimal point

10.2.6. CZ Set Calibration Zero Point [ Index 0x2212 ]

This is the reference point for all weight calculations, and is subject to TAC control.

Factory default: approx. 0 mV/V input signal

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Calibration sequence active

CZ 0

Zero point saved

10.2.7. CG Set Calibration Gain (Span) [ Index 0x2206 ]

This is the reference point for calibration with load, and is subject to TAC control.

Permitted values are from 1 to 999 999.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

CG

G+010000

Request: Calibration weight = 10000 d

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Calibration sequence active

CG 15000

Setup: Calibration weight = 15000 d

For calibrating an input signal near the display maximum (CM) will give the best system performance. The minimum calibration load of at least 20% is recommended. Is the calibration weight smaller than 1% of display maximum (CM), the DAD 141.1 will respond with an error message (“ERR”).

Factory default: 10000 = 2.000 mV/V input signal

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10.2.8. ZT Zero Tracking [ Index 0x2122 ]

This command enables / disables the zero tracking function. ZT = 0 disables the zero tracking, ZT = 1 or higher enables the zero tracking, independent of decimal point setting. Issuing the command without any parameter returns the current ZT value. Permitted values are 0 to 255.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

ZT

Z:001

Request: ZT status

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Calibration sequence active

ZT 0

Setup: ZT = Disabled

ZT = enabled - performed only on results less than ±ZT range at a rate of 0.4d/sec. ZT = 1 means ± 0.5 d

ZT = 100 means ± 50 d

Factory default: ZT = 1 [Enabled]

10.2.9. FD Reset to Factory Default Settings [ Index 0x2066 ]

This command puts the DAD 141.1 back to a known state. The factory default settings data will be written to the EEPROM and the TAC will be incremented by +1.

Note: All calibration and setup settings will be lost by issuing this command! The user setup - stored via command SU – will be not overwritten and remains untouched.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Calibration sequence active

FD

Factory default setting

10.2.10. ZR Zero Range [ Index 0x2220 ]

Sets the zero range manually – this is the range in divisions within which the weighing scale can be zeroed. Issuing the ZR command without any parameter will return the current value. Permitted values are 0 to 999 999. A value of zero 0 disables the zeroing of the scale.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

ZR

R+002000

Request: ZR = 2000 d

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Calibration sequence active

ZR 100

Setup: Zero range = 100 d

Factory default: ZR = 0

10.2.11. ZI Initial Zero ON / OFF [ Index 0x221E ]

Can proceed an initial zero @ power ON. Permitted values are 0 (OFF) or 1 (ON).

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

ZI

Z:001

Request: ZI = 1 (ON)

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Calibration sequence active

ZI 0

Setup: Initial Zero is OFF

Factory default: ZI = 0

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10.2.12. AZ Absolute zero point calibration (eCal) [ Index 0x2202 ]

The command AZ is used as reference point for all weight calculations and will setup in mV/V. Permitted values are ± 32 000 (= ± 3.2000 mV/V).

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

AZ

Z+0.2796

Request: Zero point @ 0.2796 mV/V

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Calibration sequence active

AZ_00500

New: Zero point @ 0.0500 mV/V

Factory default: 00000d @ 0.0000mV/V input signal.

10.2.13. AG Absolute gain calibration (eCal) [ Index 0x2200 ]

The command AG is used as absolute gain (or measuring range) for all weight calculations and will setup in mV/V. Permitted values are ± 32 000 (= ± 3.2000 mV/V).

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

AG

G+0.1868

Request: gain 10 000d @ 0.1868 mV/V

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Calibration sequence active

AG_+011200_+005000

New: gain 5 000d @ 1.12 mV/V

Factory default: 20 000d @ 2.0000mV/V input signal.

10.2.14. CS Save the Calibration Data [ Index 0x2066 ]

This command results in the calibration data being saved to the EEPROM and causes the TAC to be incremented by 1.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Calibration sequence active

CS

Calibration values saved

The CS command saves all of the calibration group values, as set by AG, AZ, CZ, CG, CM, DS, DP and ZT. The command returns ERR and has no updating action unless it is preceded by the CE_XXXXX.

10.2.15. SU Save User Setup in EEPROM

This command saves all the setup data including calibration non-volatile in EEPROM. In delivery status the user setup contains the factory default settings (as FD command).

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Store sequence active

SU

User setup stored in EEPROM

10.2.16. RU Restore User Setup to DAD 141.1

This command restores the user setup including the calibration from the EEPROM, the TAC counter is increased by +1.To activate, the SR command (warm start) must be performed or just re-start the DAD 141.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Restore sequence active

RU

Restore from EEPROM

SR

Activate restored user setup

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10.3. Motion Detection Commands – NR, NT

The motion detection facility provides a means of disabling certain functions whenever a condition of instability, or “motion”, is detected. The “no-motion”, or “stable” condition is achieved whenever the signal is steady for the period of time set by NT, during which it cannot fluctuate by more than NR increments. The stable condition

activates the relevant bit of responses to “Info Status” (IS). Following functions are disabled if motion is detected: “Calibrate Zero” (CZ) “Calibrate Gain” (CG) “Set Zero” (SZ) and “Set Tare” (ST). After such a command the system returns an error (“ERR“), if the signal is not stable.

10.3.1. NR Set ‘No-motion’ Range [ Index 0x2112 ]

This is the range within which the weighing signal is allowed to fluctuate and still be considered as “stable”. Permitted values are from 1 to 65535.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

NR

R+00010

Request: NR = 10 d

NR 2

Setup: NR = 2 d

WP

Setup saved

Example: For NR = 2 the fluctuations within a maximum of ± 2 d, in the period NT, will be considered “stable”.

Factory default: NR = 1 [= ±1d]

10.3.2. NT Set ‘No-motion’ Time Period [ Index 0x2114 ]

This is the time period (in milliseconds) over which the weight signal is checked to see if it is “stable” or has “nomotion“. The weight signal has to vary by less than NR divisions over the time period NT to be considered ‘stable’.

Permitted values are from 1 to 65535.

Master (PC / SPS) sends

Slave (WCN-H 122.1) responds

Meaning

NT

T+01000

Request: NT = 1000 ms

NT 500

Setup: NT = 500 ms

WP

Setup saved

If the value of NT = 500 milliseconds, the output must not fluctuate more than NR increments within 500 milliseconds in order to be considered “stable”.

Factory default: NT = 1000 [ms]

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10.4. Filter Setting Commands – FM, FL, UR

A digital filter can be set which will eliminate most of the unwanted disturbances. The commands FM and FL are used to define the digital filter settings, the command UR is used to define an averaging of up to 128 measurement values. Please note that these filters are positioned immediately after the A/D Converter and therefore affect all aspects of the weighing operation.

10.4.1. FM Filter Mode [ Index 0x2110 ]

This command defines the filter mode. Choose the filter mode for your application. Permitted values are “0” for IIR filter and “1” for FIR filter.

Master (PC / SPS) sends

Slave (WCN-H 122.1) responds

Meaning

FM

M+00000

Request: FM = 0 (IIR filter)

FM 0

Setup: FM = 0 (IIR filter)

WP

Setup saved

The digital IIR filter operates as 2nd order low pass filter and Gaussian characteristics. The attenuation is 40dB/decade (12 dB/octave).

The digital FIR filter works as a low-pass filter with quick response; damping see table mode 1.

Factory default: FM = 0 (IIR filter)

10.4.2. FL Filter Settings [ Index 0x2106 ]

This command defines the 3dB filter cut-off frequency.

Master (PC / SPS) sends

Slave (WCN-H 122.1) responds

Meaning

FL

F+00003

Request: FL = 3 (4 Hz)

FL 7

Setup: FL = 7 (0.5 Hz)

WP

Setup saved

The permitted settings are from 0 and 8 (see below table).

Factory default: FL = 3.

Mode 0 (IIR filter) Settings / Characteristic

Settling time to 0.1%

(ms)

3dB Cut-off frequency

(Hz)

Damping

@300Hz

(dB)

Output-rate*

(samples/s)

no filtering

600

600 2 122 8 78

600 3 242 4 96

600 4 322

104

600

482

114

600

963

132

600 7 1923

0.5

149

600

3847

0.25

164

600

* Output-rate = 600/2UR samples/s ** Antialiasing filter 17 Hz @ 60 dB/dec

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Mode 1 (FIR filter) Settings / Characteristic

Settling time

to 0.1%

(ms)

3 dB

Cut-off

frequency

(Hz)

20 dB

damping at

frequency

(Hz)

40 dB

damping at

frequency

(Hz)

Damping in

the

stopband

(dB)

Stopband

(Hz)

Output rate

max.

(samples/s)

no filtering

600 1 47

19.7

>90

>80

600 2 93

9.8

>90

>40

300 3 140

6.5

>90

>26

200 4 187

4.9

>90

>20

150 5 233

3.9

>90

>16

120 6 280

3.2 8 11

>90

>13

100 7 327

2.8 7 9

>90

>11

85.7

373

2.5 6 8

>90

>10

** Antialiasing filter 17 Hz @ 60 dB/decade

Attention: In mode 1 the output rate is dependant on the selected filter level (FL) and will be automatically adjusted by the DAD 141.1.

10.4.3. UR Update Rate and Averaging [ Index 0x2120 ]

Depending on the selected filter mode this command defines an averaging for the output value. The permitted settings are from 0 to 7 (see table below). The average value will always be calculated from 2UR measurement values.

DAD 141.1 allows for the following settings:

0 1 2 3 4 5 6

Average of 2

values

1 2 4 8 16

128

Check / Setup of the averaging:

Master (PC / SPS) sends

Slave (WCN-H 122.1) responds

Meaning

UR

U+00003

Request: Averaging of 8 values

UR 7

Setup: Averaging of 128 values

WP

Setup saved

Factory default: 0 (no averaging, means 600 samples/sec)

Remark to Mode 1

Dependency Output Rate - averaging UR - Filter FL

Output Rate samples/s

FL0

FL1

19.7 Hz

FL2

9.8 Hz

FL3

6.5 Hz

FL4

4.9 Hz

FL5

3.9 Hz

FL6

3.2 Hz

FL7

2.8 Hz

FL8

2.5 Hz

600

300

200

150

120

100

85.7

300

150

100

42.85

37.5

150

37,5

21.42

18.75

37.5

18.75

12.5

10.71

9.38

37.5

18.75

12.5

9.38

7.5

6.25

5.36

4.69

18.75

9.38

6.25

4.69

3.75

3.13

2.68

2.34

9.38

4.69

3.13

2.34

1.88

1.56

1.34

1.17

4.69

2.34

1.56

1.17

0.94

0.78

0.67

0.59

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10.5. Taring and Zeroing Commands – SZ, RZ, ZN, ST, RT, TN, RW, TI

The following commands allow you to set and reset the zero and tare values. The zero set up during calibration

remains the ‘true zero’ but the new ‘current zero’ can be set up by using the SZ command. If the SZ command is issued and accepted then all weight values will then be based on the new ‘current zero’. Please remember

that the zero value will be subject to the Zero tracking function if enabled. If the weight signal is not stable (as defined by the ‘No motion’ range NR and the ‘No motion’ time NT) then both, the set zero SZ and set tare ST commands, will be disabled. See chapter 11 - Use in “Approved” applications.

10.5.1. SZ Set System Zero [ Index 0x2061 ]

This command sets a new “current zero” which is then the basis of all weight values until further updated by the zero tracking function, another SZ command or the “reset zero” command RZ.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

SZ

Set zero performed

The SZ command will fail (DAD 141.1 responds with ERR) if the new “current zero” is outside the active

+/- zero range set with the ZR command.

The SZ command will also fail if the weight signal is not stable as

defined by the No motion range (NR) and the No motion time (NT). If the weight signal is “stable”, the response to the IS command (Device Status) will show the “signal stable” bit active and the SZ command will be accepted (OK). If the “signal stable” bit is not active, the SZ command will be rejected and the DAD 141.1 will

respond with ERR (error).

10.5.2. RZ Reset Zero [ Index 0x2061 ]

This command cancels the SZ command and the zero reading reverts to that set by the CZ command during calibration.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

RZ

Zero point CZ active

The DAD 141.1 responds to the RZ command with either OK or ERR. If OK is returned then the “zero action performed” bit in the Device Status (IS) response will be set to “0”.

10.5.3. ZN Store Zero Value [ Index 0x2226 ]

This command allows to store the zero value non volatile @ power off of the DAD 141.1. Permitted values are 0 (off) and 1 (on).

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

ZN

Z:000

Zero @ power off: OFF

ZN_1

Setup: Zero @ power off: ON

10.5.4. ST Set Tare [ Index 0x2061 ]

This command will activate the net weighing function by storing the current weight value as a tare value.

The weight signal must be “stable” within the limits set by NR (No Motion Range) and NT (No Motion Time) commands for the “signal stable” bit to be active and set tare command to be accepted.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

ST

Tare performed / Net operation

If the weight signal is “stable”, the response to the IS command (Device Status) will show the “signal stable” bit active and the ST command will be accepted (OK). If the “signal stable” bit is not active, the ST command will

be rejected and the DAD 141.1 will respond with ERR (error).

10.5.5. RT Reset Tare [ Index 0x2061 ]

This command resets the tare and the weighing signal returns to gross mode.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

RT

Tare de-activated / Gross operation

The DAD 141.1 responds to the RT command with either OK or ERR. If OK is returned then the “tare active” bit in the Device Status (IS) response will be set to “0”.

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10.5.6. TN Store Tare Value [ Index 0x2224 ]

This command allows to store the tare value non volatile @ power off of the DAD 141.1. Permitted values are 0 (off) and 1 (on).

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

TN

T:000

Tare @ power off: OFF

TN_1

Setup: Tare @ power off: ON

10.5.7. TW Window for Automatic Taring [ Index 0x240A ]

This command defines an amplitude window for the automatic taring. The setting TW = 100 means, that the system calculates a new tare value, if the averaged net value of the empty scale falls within 100 digits of the net zero point. The new tare value will be averaged over the time period TI (see below). If the averaged tare value falls outside this window, then the tare value will not be updated.

Permitted values are from 0 to 65535. Default setting: TW = 0 [= automatic taring disabled]

Master (PC / SPS) sends

Slave (WCN-H 122.1) responds

Meaning

TW

W+00000

Request: TW = 0 d

TW 100

Setup: TW = 100 d

10.5.8. TI Averaging Time for Automatic Taring [ Index 0x240C ]

This command defines the averaging time for the automatic taring. Within this time period the system calculates an averaged tare value.

Permitted values are from 0 to 65535. Default setting: TI = 0 ms [= automatic taring disabled]

Master (PC / SPS) sends

Slave (WCN-H 122.1) responds

Meaning

TI

T+00000

Request: TI = 0 ms

TI 200

Setup: TI = 200 ms

Remark to TW / TI:

The dynamic automatic taring (virtually) will be proceeded only in case both commands are setup with permitted values. In the case, one of both is set to “0”, the automatic taring is switched off.

Weight

Time

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10.6. Output Commands – GG, GN, ON, GT, GS, GW, GA, GH, GM, RM,

GO, GV

The following commands “Get’s” the gross, net, tare, ADC sample values etc. from the DAD 141.1.

10.6.1. GG Get Gross Value [ Index 0x2000 or 0x2020 ]

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

GG

G+001.100

Gross value: 1.100 d

10.6.2. GN Get Net Value [ Index 0x2002 or 0x2022 ]

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

GN

N+001.000

Net value: 1.000 d

10.6.3. ON Get Net Value of device ’n’

This command can be used for having quick access to all net values of some DAD 141.1 in a RS 485 network without using any other commands like Open (OP) or Close (CL)

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

ON3

N+001.000

Net value of # 3: 1.000 d

10.6.4. GT Get Tare Value [ Index 0x2118 ]

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

GT

T+000.100

Tare value: 100 d

10.6.5. GS Get ADC Sample Value [ Index 0x202A ]

This command gets the actual Analogue to Digital Converter (ADC) value. This can be useful during development or when calibrating to see how much of the ADC range is being used.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

GS

S+125785

ADC sample value = 125785 d

For service purposes it may be helpful to note the GS values for the “no-load” or “zero” output and when the “calibration load” is applied.

10.6.6. GW Get Data String “Net, Gross and Status“ [ Index 0x3300 or 0x3500 ]

Issuing the GW command, which has no parameters, will return the net weight, the gross weight, the status and the checksum values, all combined into one single string in the format W+000100+001100010F. The first two sections of the return string comprise the net weight and gross weight results, followed by two hexadecimal characters, which represent two bitmapped status indicators. The last two hexadecimal characters represent the checksum, which is the inverse of the sum of all the ASCII values of the string, not including the checksum characters.

+000100

+001100

0 1 0F

Leading

character

signifies the GW

Net weight

excluding

decimal point

Gross weight

excluding decimal

point

First

bitmapped

binary value

Second

bitmapped

binary value

Checksum

The bitmapped characters are:

First bitmapped value description

Second bitmapped value description

1 Not used 2 Output 0 active 4 Output 1 active 8 Output 2 active

1 No motion 2 Zero action performed 4 Tare active 8 Not used

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The checksum is derived as follows:

a. Add the ASCII values (in hex) of all the 15 characters in the string b. Invert the hexadecimal value c. Add one to the value d. Use only the last two digits e. Convert the hexadecimal value to characters

10.6.7. GA Get Triggered Average Value [ Index 0x2008 or 0x2028 ]

This command reads the measurement result of a measurement cycle. The measurement value has been averaged according the defined measuring time. The trigger commands can be found in chapter 10.13.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

GA

A+001.100

Request: GA = 1100 g

Note: For preventing errors during the read out of the data the register GA has stored the value 99999 at the beginning of the measurement cycle. The measurement result can only be read after the defined measuring time MT has been elapsed and before a new measurement cycle has been started.

10.6.8. GH Get Hold Value [ Index 0x2084 or 0x2086 ]

Get the actual weight value, activated by the logic inputs.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

GH

H+001.800

Hold value: 1800 d

10.6.9. TH Trigger Hold Value [ Index 0x2061 ]

Saves the weight value of the last GH reading.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

TH

Save actual weight value

10.6.10. GM Get Peak Value [ Index 0x2080 or 0x2082 ]

The peak value is the maximum input value while your measurement.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

GM

M+051.100

Peak value: 51100 d

10.6.11. RM Reset Peak Value [ Index 0x2061 ]

Resets the peak value.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

RM

Reset Peak value

10.6.12. GO Get Peak To Peak Value [ Index 0x208C or 0x208E ]

The peak to peak value is the difference value between the maximum and minimum input values while your measurement.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

GO

O+091.100

Peak to Peak value: 91100 d

10.6.13. GV Get Valley Value [ Index 0x2088 or 0x208A ]

The valley value is the minimum input value while your measurement.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

GV

V+000.100

Valley value: 100 d

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10.7. Auto-Transmit Commands – SG, SN, SW, SA, SH, SM, SO, SV

The following commands allow the gross weight or net weight values to be continuously sent. Continuous transmission starts as soon as the relevant command has been issued and finishes when any other valid command is accepted by the DAD 141.1. The data output rate will depend on the baud rate being used e.g. with a baud rate of 115200 approximately 1000 values per second can be transmitted. The output rate of DAD 141.1 is max. 600 measurement values per second.

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

10.7.1. SG Send Gross Value continuously

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

SG

G+001.100

Gross value: 1,100 d

10.7.2. SN Send Net Value continuously

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

SN

N+001.000

Net value: 1,000 d

10.7.3. SW Send Data String “Net, Gross and Status“ continuously

Issuing the SW command, which has no parameters, will return continously the net weight, the gross weight, the status and the checksum values, all combined into one single string in the format W+000100+001100010F.

For more detailed information of the data string see command GW (chapter 10.6.6).

10.7.4. SA Send Triggered Average Value automatically

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

SA

Auto-Transmit: triggered average value

This command will start to auto-transmit the measurement value of the current trigger cycle. The trigger setup commands are described in chapter 10.13.

10.7.5. SH Send Hold Value continuously

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

SH

H+001.100

Hold value: 1,100 d

10.7.6. SM Send Peak Value continuously

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

SM

M+001.100

Peak value: 1,100 d

10.7.7. SO Send Peak To Peak Value continuously

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

SO

O+001.100

Peak to Peak value: 1,100 d

10.7.8. SV Send Valley Value continuously

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

SV

V+000.100

Valley value: 100 d

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10.8. Logic Input Functions & Status – AI’n’, IN

10.8.1. AI Assign input ‘n’ [ Index 0x2074 and 0x2076 ]

This command reads / setup the function of the logical inputs. The values for ‘n’ are 0 or 1.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

AI_1

I1:+00000

Reading Input 1: no function

AI_1_10

Setup accepted

AI_1

I1:+00010

Input 1: display set to ‘Peak to Peak’ value

The 2 logic inputs ‘n’ can be used for the different functions:

00 - Input "n" has no function

01 - Input "n" acts as Zero button

02 - Input "n" acts as Tare button

03 - Input "n" acts as Up arrow button

04 - Input "n" acts as Down arrow button

05 - Input "n" starts the Trigger function

06 - Input "n" displays the Average value

07 - Input "n" displays the Peak value (maximum)

08 - Input "n" deletes the Peak value (maximum)

09 - Input "n" displays the Hold value

10 - Input "n" displays the Peak to Peak value

11 - Input "n" displays the Valley value (minimum)

12 - Input "n" disables the buttons

13 - Input "n" stores the actual weight (Hold value)

14 - Input "n" tares the displays and deletes all other values

15 - Input "n" turn off display

10.8.2. IN Read status of the logic inputs [ Index 0x210C ]

This command reads the status of the digital inputs.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

IN

I:0000

Reading: Input 0 or 1 inactive

IN

I:0001

Reading: Input 0 active

IN

I:0010

Reading: Input 1 active

IN

I:0011

Reading: Input 0 and 1 active

The status response is in the form of a four digit code where 0 = false and 1 = true (inputs are active ‘high’). The least significant bit corresponding to Input 0.

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10.9. Logic Output Commands - IO, OM, S’n’, H’n’, P’n’, A’n’, HT

The definitions for this section may be changed due to the fact that the definitions of the logic outputs for the DAD 141.1, where the status depends on the weight value (setpoint) are to be defined. Each logic output can be assigned an independent setpoint value (S’n’) with a corresponding hysteresis/polarity action (H’n’, P’n’) and allocation (A’n’ – switch on the gross, net, peak, average etc. weight).

10.9.1. IO Read / Modify the Status of the logic Outputs [ Index 0x210A ]

This command reads and can modify the status of the logic outputs (if enabled by the OM command). The status response is in the form of a four digit code where 0 = false and 1 = true (outputs are normally open, open drain MOSFETs), the least significant bit corresponding to Output 0 etc.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

IO

IO:0001

Output 0 is high

IO

IO:0101

Outputs 0 and 2 are high

IO

IO:0111

Outputs 0, 1 and 2 are high

The status of the outputs can be changed by issuing the IO command with the appropriate 4 digit code e.g. IO 0001 where in this example output 0 will be activated (FET conducting). Please note that the status of the logic outputs is normally determined by the internal setpoints (see section 10.9.2) and therefore setting the logic output status using the IO commands is not allowed.

Setting

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

IO_010

Setup output 1 is high

IO_011

Setup outputs 0 and 1 are high

IO_111

Setup outputs 0, 1 and 2 are high

However, the OM command can be used to allow the status of the logic outputs to be set via the IO command or set their status directly by the host application.

Factory default: IO=0000

10.9.2. OM Control of the logic outputs by the host application [ Index 0x2116 ]

The logic outputs can be controlled by the host application (as opposed to the normal internal setpoints) if they are enabled by the OM command and the appropriate 4 digit code.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

OM

OM:0001

Enable Output 0

OM

OM:0101

Enable Outputs 0 and 2

OM

OM:0111

Enable Outputs 0, 1 and 2

A “1” bit in the code enables the corresponding logic output to be controlled by the host application using the IO command. A “0” in the code leaves the corresponding logic output controlled by the internal setpoint.

Logic output 0 is again the least significant bit.

Setting

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

OM_010

Enables output 1

OM_ 011

Enables outputs 0 and 1

OM_111

Enables outputs 0, 1 and 2

Note: When reading the status of the logic outputs using the IO command, the setpoint status will be returned regardless of the OM setting. Sending OM_0000 disables the external logic output control.

Factory default: OM=0000

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10.9.3. A’n’ Assign action for setpoint ‘n’ [ Index 0x2068 ]

This command is used to release the external control of the logic outputs: read or setup

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

A1

A1:+00000

Output 1 based to gross value

A2

A2:+00002

Output 2 based to peak value

A1_1

Output 1 set to base net value

A1

A1:+00001

Output 1 based to net value

Choose the base for the output ‘n’ like follows:

0 - Gross value

1 - Net value

2 - Peak value (Maximum)

3 - Average value

4 - Hold value

5 - Peak to Peak value

6 - Valley value (Minimum)

7 - Error 4 or 5

8 - set output "1" OFF

10.9.4. S‘n’ Setpoint Value [ Index 0x206C ]

This command is used to read or setup the 3 setpoints S0, S1 and S2. Permitted value range is +/- 999 999.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

S1

S1:+01500

Request: Setpoint S1 = 1500 d

S1 3000

Setup: Setpoint S1 = 3000 d

Factory defaults: S’0’ = 1000 d , S’1’ = 5000 d, S’2’ = 9999 d

10.9.5. H’n’ Setpoint Hysteresis and Switching Action [ Index 0x206A ]

The switching logic will be defined by the numeric value of hysteresis and the polarity. The outputs can operate as “normally closed” or “normally open”, depending of the settings H’n’ and P’n’.

Examples of the swichting actions for a Setpoint value of 2 000kg

Polarity = 0 [OFF]:

Polarity = 1 [ON]:

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Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

H1

H1:+00000

Request: hysteresis setpoint S1

H1_100

Setup: hysteresis setpoint S1 to 100 d

Allowed hysteresis values are within the range from –9999 to +9999 at a step size of 1.

10.9.6. P’n’ Polarity of Setpoint [ Index 0x2070 ]

This command is used to setup the switch characteristic of the 3 setpoints S0, S1 and S2.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

P0

P0:+00000

Request: Polarity of setpoint S0 is OFF

P0_1

Setup: Polarity of setpoint S0 is ON

P1_1

Setup: Polarity of setpoint S1 is ON

P1

P:+00001

Request: Polarity of setpoint S1 is ON

Permitted values are 0 [OFF] and 1 [ON] For further informations or better understanding, see the examples in chapter 10.9.5, too. Note: All changes to the setpoint settings have to be stored in the EEPROM using the SS command.

See chapter 10.12.

10.9.7. HT Hold time for all Setpoints [ Index 0x2408 ]

This command defines the hold time for the setpoint limit. The signal has to exceed the setpoint limit continuously at least for this time period before a switch event will be initiated.

Note: This setup is valid for all 3 Logic Outputs. Permitted value range is 0 to 65 535 ms.

Default setting: HT = 0 ms.

Master (PC / SPS) sends

Slave (WCN-H 122.1) responds

Meaning

HT

H+00000

Request: HT = 0 ms

HT 200

Setup: HT = 200 ms

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10.10. Communication Setup Commands – AD, NA, BR, DX, OP, CL, TD

10.10.1. AD Device Address

This command can set up the device address in the value range from 0 to 255.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

AD

A:000

Request: Address 0 (= factory default)

AD_49

Setup: Address 49

Setting the device address to “0“ will cause the device to be permanently active, listening and responding to every command on the bus without the need for an OP command.

Note: After editing the address you first have to save the changes (command WP) and then restart the device.

10.10.2. NA Network Address [ Index 0x300C ]

This command displays or sets the network address of DAD 141.1 Ethernet port.

Factory default of TCP/IP address: 192.168.0.100.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

NA

A:192.168.000.100

Request: Actual TCP/IP address

NA192.168.11.90

Setup: Set the address to 192.168.11.90

Note: A change will take effect after a reset, e.g. power off / on.

10.10.3. BR Baud Rate

With this command the following baud rates can be setup: 9600, 19200, 38400, 57600 and 115200 Baud.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

BR

B 115200

Request: 115200 Baud (= factory default)

BR_9600

Setup: 9600 Baud

Factory setup: 115200 baud Note: After editing the baud rate you first have to save the changes (command WP) and then restart the

device.

10.10.4. DX Operation Mode Half-/Full-Duplex

The DAD 141.1 can operate in half or full duplex mode.

Master (PC / SPS) sends

Slave (DAD 141.1) resp.

Meaning

DX

X:001

Request: DX = 1 (full duplex, factory default))

DX 0

Setup: DX = 0 (half duplex)

10.10.5. OP Open Device

This command, if sent without parameters, requests the address or device number of the device active on the bus. If sent with parameters, this enables the device defined by the parameters.

Master (PC / SPS) sends

Slave (DAD 141.1) resp.

Meaning

OP

O:003

Request: Device #3 open

OP_14

Setup: Open Device #14

10.10.6. CL Close Devices

This command will close DAD 141.1 device in a bus.

Master (PC / SPS) sends

Slave (DAD 141.1) resp.

Meaning

CL

Setup: All devices closed

10.10.7. TD Transmission Delay

In some half duplex applications using a PLC system, a delay of the data transmission (up to 255 milliseconds) can be helpful due to the very quick answers of the DAD 141.1. Permitted values are 0 to 255 ms.

Master (PC / SPS) sends

Slave (DAD 141.1) resp.

Meaning

TD

T+00000

Request: 0 d – no delay

TD_200

Setup: 200 d – 200 ms delay

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10.11. Analog Output – AA, AH, AL, AM

The following commands must be saved in EEPROM by command AS.

10.11.1. AA Analog Output Base [ Index 0x2100 ]

This command can setup the analog output base. Permitted values are 0 … 8.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

AA

A+00001

Request: base is gross value

AA_2

Setup: base is Peak value

You can choose one out of the following analog output base:

0 - analog output follows Gross value

1 - analog output follows Net value

2 - analog output follows Peak value (Maximum)

3 - analog output follows Average value

4 - analog output follows Hold value

5 - analog output follows Peak - Peak value

6 - analog output follows Valley value (Minimum)

7 - analog output follows Display value

8 - analog output is switched OFF

10.11.2. AH Set Analog High Level [ Index 0x2102 ]

Request / Set up high level for analog output. Permitted values are -999 999 … +999 999d.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

AH

H+010000

Request: setting 10 000 d

AH_30000

Setup: 30 000 d

10.11.3. AL Set Analog Low Level [ Index 0x2104 ]

Request / Setup low level for analog output. Permitted values are -999 999 … +999 999d.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

AL

L+000000

Request: setting 0 d

AL_600

Setup: 600 d

10.11.4. AM Set Analog Output Mode [ Index 0x2128 ]

Request / Setup mode for analog output. Permitted values are 0 … 5.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

AM

M:000

Request: setting 4 to 20mA

AM_3

Setup: 0 to +10V

You can choose one out of the following analog output modes:

4 to 20mA

0 to 20mA

0 to +5V

0 to +10V

-5 to +5V

-10V to +10V

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10.12. Save Calibration and Setup – CS, WP, SS, AS, GI, PI

The calibration and setup parameters can be divided in 4 groups:

 Calibration: CM, DS, DP, CZ, CG, ZT, IZ and FD, etc. saved by command CS  Setup: FL, FM, NR, NT, BR, AD, DX and others, saved by command WP  Setpoints: S1, S2, S3, H1, H2, H3, A1, A2, A3 - saved by command SS  Analog outputs: AA, AH, AL, AM - if available - saved by command AS

Note: Calibration data can only be saved if the TAC code is known and preceding the CS command. See the commands CE and CS in chapter 10.2.

The setup data and the setpoint data will be stored non-volatile in the EEPROM using the WP respective SS and AS command.

10.12.1. CS Save the Calibration Data [ Index 0x2066 ]

This command results in the calibration data being saved to the EEPROM and causes the TAC to be incremented by 1.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Calibration sequence active

CS

Calibration values saved

The CS command saves all of the calibration group values, as set by AG, AZ, CZ, CG, CM, DS, DP, ZT etc. The command returns ERR and has no updating action unless it is preceded by the CE_XXXXX.

10.12.2. WP Save the Setup Parameters [ Index 0x2066 ]

With this command the settings of the “Filter” (FL, FM), the “No-motion” (NR, NT) and the communication (AD, BR, DX) will saved in the EEPROM.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

WP

Setup data saved

WP

ERR

Error

10.12.3. SS Save Setpoint Parameters [ Index 0x2066 ]

With this command the setpoints (S0, S1), the setpoint hysteresis (H0, H1) and the setpoint allocation (A0, A1) will be saved in the EEPROM.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

SS

Setpoint parameters saved

SS

ERR

Error

10.12.4. AS Save Analogue Output Parameters [ Index 0x2066 ]

With this command the action (AA), the analog low (AL), the analog high (AH) and the output mode (AM) will be saved in the EEPROM.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

AS

Analog output parameters saved

AS

ERR

Error

10.12.5. GI Get an Image File from the EEPROM

Retrieves a HEX-INTEL formatted EEPROM image file from the EEPROM of the source DAD 141.1. The image file contains all stored information except the calibration data. This image file can be downloaded to any DAD 141.1 with the same firmware type and revision no. as the source DAD 141.1.

10.12.6. PI Download an Image File to the EEPROM

Downloads a HEX-INTEL formatted EEPROM image file to the target DAD 141.1 EEPROM. The image file contains all stored information except the calibration data.

Attention: The target DAD 141.1 must have same firmware type and revision no. as the source DAD 141.1.

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10.13. Trigger Commands – SD, MT, GA, TE, TR, TL, SA

Note: All changes to the trigger commands have to be stored in the EEPROM using the WP command. See

chapter 10.12.

10.13.1. SD Start Delay Time [ Index 0x211A or 0x2412]

This command defines a time delay between the trigger and the start of the measurement. Setting range: 0 ms to 500 ms.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

SD

S+00100

Request: SD = 100 ms

SD 200

Setup: SD = 200 ms

Default setting: SD = 0 ms; time plot of a typical checkweigher cycle see below

10.13.2. MT Measuring Time [ Index 0x210E or 0x2410 ]

This command defines the measuring time for the averaged measurement result. Setting range: 0 ms to 3000 ms.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

MT

M+00100

Request: MT = 100 ms

MT 500

Setup: MT = 500 ms

Note: The setting MT = 0 disables the trigger function and the averaging. Default setting: MT = 0 [= trigger function disabled]; time plot of a typical checkweigher cycle see below

10.13.3. GA Get Triggered Average Value [ Index 0x2008 or 0x2028 ]

This command reads the measurement result of a measurement cycle. The measurement value has been averaged according the defined measuring time.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

GA

A+001.100

Request: GA = 1100 g

10.13.4. TE Trigger Edge [ Index 0x2402 or 0x211C ]

This command defines the trigger edge. Allowed settings are “0” for falling edge and “1” for rising edge. This

command can only be used in conjunction with a hardware trigger on the digital input channel 0.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

TE

E:001

Request: TE = 1 (rising edge)

TE 0

Setup: TE = 0 (falling edge)

Default setting: TE = 0 [= falling edge]; time plot of a typical checkweigher cycle see below

10.13.5. TR Software Trigger [ Index 0x2062 ]

This command starts a measurement cycle. Its execution can be compared to a hardware trigger on the digital input channel 0.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

TR

Trigger event

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10.13.6. TL Trigger Level [ Index 0x211E or 0x2400 ]

This command defines a level for a rising edge trigger on the measurement signal. Setting range: 0 to 99999.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

TL

T+99999

Request: TL = 99999

TL 1000

Setup: TL = 1000

In the example a new measurement cycle would automatically start, if the signal exceeds 1000 d (e.g. 100,0 g; trigger commands SD and TL). Default setting: TL = 99999 [= trigger level disabled]

Note: All trigger possibilities are always available in parallel. If a software trigger (command TR) or a hardware trigger (Digital input 0) will be used the trigger level should be set to its maximum value (TL = 99999). This setting disables the trigger level.

Figure: Time plot of a typical checkweigher cycle

10.13.7. SA Send Triggered Average Value automatically

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

SA

Auto-Transmit: triggered average value

This command will start to auto-transmit the measurement value of the current trigger cycle.

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11. Use in “Approved” Applications

The term “approved” applies whenever the weighing application is intended to be used for “legal-for-trade” weighing – that is, money will change hands according to the weight result. Such applications are bound by the legal metrology regulations of the relevant governments around the World, but most countries will comply with either the relevant EN’s (Euro Norms) or the relevant OIML (Organisation Internationale de Metrologie Legale) recommendations.

The DAD 141.1 is both, a complete instrument with a Type Examination Certificate in accordance with OIML R76 (for NAWI only), but in addition supplied with three Evaluation Certificates for AWI purposes, i.e. OIML R51, R61 and R107.

For NAWI, the highest performance level approved being Class III with 10 000 intervals in single range applications. The approval Authority was the Danish Electronics, Light & Acoustics (DELTA), and the approval certificate number is DK0199-R76-422. The minimum scale verification is 0.2 µV per increment.

Due to the Type Examination Certificate (of complete instrument inclusive display, apply for NAWI only) and Verification (that the instrument comply with the Type Approval) can be stamped with the big green 'M' and some others scale features on the housing – see page 10.

This approval will allow the use in approved weighing systems throughout Europe, and in many other countries of the World. To achieve approval on a particular application, it will be necessary to satisfy the relevant Governmental Trading Standards Authority that the requirements of the various rules and regulations have been satisfied. This task is greatly simplified if the key components of the weighing system, namely the load cells and the weighing indicator or digitizer, are already approved as “components”. Usually, a discussion with the Weighing Equipment Approvals Officers at the relevant National Weights & Measures Office will then reveal the extent of any pattern testing that may be necessary to ensure compliance.

Restrictions upon usage when in “Approved” applications

A number of performance restrictions must come into force. These restrictions are the number of display divisions, which become limited to 10000 divisions, and the sensitivity per display division, which becomes

0.25 μV per division. Once installed in the application, an “approved” application will require “stamping”

(sealing) by an Officer of the relevant Governmental Trading Standards Department. This certifies the equipment or system as being in accordance to the relevant regulations and within calibration limits.

The Traceable Access Code (TAC)

The user software must then provide a guard against improper access of the calibration commands (see the “Calibration Commands” section). The DAD 141.1 digitizer features the “Traceable Access Code” or TAC method of controlling the access to the calibration commands group. This means that a code is maintained within the device, and is incremented whenever any change to any of the calibration commands is saved.

When performing the “stamping” test, the Trading Standards Officer will make a note of the TAC, and advise

the user that any change to this code which occurs prior to the regular re-inspection by the Trading Standards Office, will result in legal prosecution of the user. The user software is required as a condition of approval, to make the TAC available to the weight display indicator or console, on demand.

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12. Calibration and Calibration Sequence

The calibration of DAD 141.1 is only possible after starting a calibration sequence (compare with chapter 10.2).

 Command CE: Calibration enable – returns the current TAC value  Command CM: Calibrate maximum display – sets the max. allowable display value  Command CI: Calibrate minimum – sets the minimum allowable display value  Command DS: Display step size – sets the output incremental step size  Command DP: Decimal point – sets the position of the output decimal point  Command CZ: Calibrate zero – sets the system zero point  Command CG: Calibrate gain – sets the system gain  Command ZT: Zero track enable / disable  Command ZR: If applicable: Zero Range – sets the zero range manually  Command ZI: If applicable: Initial Zero Range  Command FD : If applicable: Reset to factory default settings  Command CS : Save calibration data (TAC counter automatically incremented by 1)

Preparing the calibration:

 Check, if the max value of the display is set sufficiently high (see chapter 10.2, command CM)  Check, if the no motion conditions are defined reasonable (chapter 10.3, e.g. NR = 1, NT = 1000)  Set the IIR filter frequency to 0.5 Hz (see chapter 10.4, FM = 0, FL = 7)

Example: Setup of zero point, system gain and decimal point The chosen calibration weight has the value 5000 (increments). That could be 500 g, 5 kg or 5000 kg. We

calibrate with 500 g. The decimal point is set up by command DPx (x = 1, 2 or 3), here 1 figure after the decimal point. A measured weight of 500 g is displayed as 500.0.

Master (PC / SPS) sends

Slave (DAD 141.1) responds

Meaning

CE

E+000017 (example)

Request: TAC counter CE17

Adjust zero: The scale has to be empty. No load!

CE 17

Calibration sequence active

CZ

System zero point saved

Adjust gain: First put the calibration weight on the scale (here 500 g)!

CE 17

Calibration sequence active

CG 5000

Setting span

CG

G+05000

Request: span 5000 d

CE 17

Calibration sequence active

DP 1

Setting: decimal point 0000.0

CE 17

Calibration sequence active

CS

Save calibration data in EEPROM

Zero point, gain and decimal point position were saved in the EEPROM; the calibration counter (TAC) is increased automatically by 1.

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13. Updates – Firmware Download

For a firmware update the DAD 141.1 has to be connected either via the Serial port or via the Ethernet port to a Windows PC.

A download is accomplished with help of the software “H&B Programmer 3.0” (or later).

Firmware update for DAD 141.1:

First all necessary files (HBProgrammerX.exe, HBProgrammerX.conf, firmware) have to be stored in same directory. The firmware for DAD 141.1 is stored in a file e.g. DAD141.181.v.x.yy.hbf.

 Switch on DAD 141.1  Start program “HB-Programmer”.  Press button “Load” and choose the file ”DAD141.181. v.x.yy.hbf”.  Press button “Program”.  Download proceeds. – The end will be indicated with ”Programming OK “.  Switch off DAD 141.1.  Now use a terminal program or DOP 4 software for running a factory reset of the DAD 141.1 by using the

command FD

Note: The command FD is TAC protected. You must issue the CE command with relevant TAC code prior to the FD command else the FD command will fail.

FD Reset to Factory Default Settings

This command puts the DAD 141.1 back to a known state. The data will be written to the EEPROM and the TAC will be incremented by 1.

Note: All calibration and setup information will be lost by issuing this command!

Master (PC / SPS) sends

Slave (WCN-H 122.1) responds

Meaning

CE

E+00017 (example)

Request: TAC counter CE17

CE 17

Calibration sequence active

FD 0

Factory default setting

Practicle Hint

www.haubac.com

The software DOP4 – graphical user interface with oscilloscope function – can easily make a backup of all vital command parameters before download a new firmware or use of the FD command. After this the vital data values can be loaded back into the device.