H&B DAD 141.1 Technical Manual - page 33

Manual is about: Load Cell Digitizing Unit Communication via RS 422/485 & Ethernet Port

Summary of DAD 141.1

  • Page 1

    Load cell digitizing unit type dad 141.1 communication via rs 422/485 & ethernet port t echnical m anual 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.

  • Page 2: Table Of Contents:

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 2 of 54 0. Table of contents: 0. Table of contents: ..................................................................................................................................... 2 1. Safety instructions .....................................

  • Page 3

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 3 of 54 9. Commands – overview ........................................................................................................................... 28 10. Commands description .................................................................

  • Page 4

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 4 of 54 10.7. Auto-transmit commands – sg, sn, sw, sa, sh, sm, so, sv ...................................................... 42 10.7.1. Sg send gross value continuously ...............................................................................

  • Page 5: Safety Instructions

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 5 of 54 rights and liabilities all rights reserved. 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 wri...

  • Page 6: Declaration Of Conformity

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 6 of 54 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 produktbezeic...

  • Page 7

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 7 of 54 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) r...

  • Page 8

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 8 of 54 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...

  • Page 9

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 9 of 54 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 ...

  • Page 10: Hardware And Wiring

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 10 of 54 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...

  • Page 11

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 11 of 54 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 4...

  • Page 12

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 12 of 54 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 g...

  • Page 13

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 13 of 54 6. Menu structure setup keybord.

  • Page 14

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 14 of 54 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 us...

  • Page 15

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 15 of 54 7.3. Menu 1 – system zero remark: activate a new calibration with 1x power off & on ! 1. 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 ...

  • Page 16

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 16 of 54 7.4. Menu 2 – system span remark: activate a new calibration with 1x power off & on ! 2. 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 calibra...

  • Page 17

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 17 of 54 7.6. Menu 4 – filter & motion detection remark: activate a new setup with 1x power off & on ! 4 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...

  • Page 18

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 18 of 54 7.7. Menu 5 – analog output remark: activate a new setup with 1x power off & on ! 5 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...

  • Page 19

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 19 of 54 7.8. Menu 6 – logic inputs remark: activate a new setup with 1x power off & on ! 6 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 - in...

  • Page 20

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 20 of 54 7.9. Menu 7 – logic outputs remark: activate a new setup with 1x power off & on ! 7 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 +...

  • Page 21

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 21 of 54 7.10. Menu 8 – data communication remark: activate a new setup with 1x power off & on ! 8 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...

  • Page 22

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 22 of 54 menu 8 – data communication / continuation remark: activate a new setup with 1x power off & on ! 8 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 – ev...

  • Page 23

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 23 of 54 7.12. Error codes zero key is not enabled (chapter 7.3, menu 1.1) out of zero range. (you are trying to set a zero which is greater than ± 2% of the upper display limit) n/a input exceeded ± 3.3mv/v load cell connection fail requested v...

  • Page 24: Examples

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 24 of 54 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...

  • Page 25

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 25 of 54 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...

  • Page 26

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 26 of 54 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 ...

  • Page 27

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 27 of 54 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 n...

  • Page 28: Commands

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 28 of 54 9. Commands – overview command short description parameter value page aa get/set analog output action (base) 0 through 8 48 ad communication: device address 0...255 47 ag absolute gain calibration ± 32000 34 ah get/set analog high -9999...

  • Page 29

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 29 of 54 command short description parameter value page om output mask – to control hy host 0000…0111 44 on open net weight of device ‘n’ 0…255 40 op open device 0…255 47 pi download a saved image file to the dad 141.1 ’s eeprom image data strin...

  • Page 30: 10.  Commands Description

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 30 of 54 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 fo llowing tables as “ “. For each command...

  • Page 31

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 31 of 54 10.1.5. Sr reset dad 141.1 firmware master (pc / sps) sends slave (dad 141.1) responds sr ok 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...

  • Page 32

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 32 of 54 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 m...

  • Page 33

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 33 of 54 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 comma...

  • Page 34

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 34 of 54 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 s...

  • Page 35

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 35 of 54 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 whe...

  • Page 36

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 36 of 54 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 av...

  • Page 37

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 37 of 54 mode 1 (fir filter) settings / characteristic fl 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...

  • Page 38

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 38 of 54 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 ...

  • Page 39

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 39 of 54 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 ...

  • Page 40

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 40 of 54 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 / sp...

  • Page 41

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 41 of 54 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 char...

  • Page 42

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 42 of 54 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...

  • Page 43

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 43 of 54 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 14...

  • Page 44

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 44 of 54 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 ...

  • Page 45

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 45 of 54 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 bas...

  • Page 46

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 46 of 54 master (pc / sps) sends slave (dad 141.1) responds meaning h1 h1:+00000 request: hysteresis setpoint s1 h1_100 ok setup: hysteresis setpoint s1 to 100 d allowed hysteresis values are within the range from –9999 to +9999 at a step size...

  • Page 47

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 47 of 54 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:00...

  • Page 48

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 48 of 54 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 / ...

  • Page 49

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 49 of 54 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 o...

  • Page 50

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 50 of 54 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...

  • Page 51

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 51 of 54 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 req...

  • Page 52: 11.

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 52 of 54 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 ...

  • Page 53

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 53 of 54 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: calibra...

  • Page 54: 13.  Updates

    Dad 141.1 technical manual, rev. 2.5 – april 2015 page 54 of 54 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 l...