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Theodor Friedrichs COMBILOG 1020 Hardware Manual

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COMBILOG 1020
Datalogger
Hardware Manual Version 3.09

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Summary of Contents for Theodor Friedrichs COMBILOG 1020

  • Page 1 COMBILOG 1020 Datalogger Hardware Manual Version 3.09...
  • Page 2 Issue: 03.11.2005 Technical data are subject to change! Hardware Manual COMBILOG 1020...
  • Page 3 Limitation of Liability: No liability is assumed by Theodor Frie- drichs for damages and/or injury resulting from use of equipment supplied by this company. In no event will Theodor Friedrichs be liable for indirect or consequential damages whatsoever resulting from loss of use, data or profits arising out of connection with the use of performance of Theodor Friedrichs products.
  • Page 4 Hardware Manual COMBILOG 1020...

  • Page 5: Table Of Contents

    DISPLAY / MENU OPERATION ....67 DATA STORAGE ........78 MASTER FUNCTION ......84 INITIATION AND TEST ......87 STRUCTURE OF THE BUS TOPOLOGY .. 89 COMMUNICATION........ 103 SPECIFICATIONS ........ 147 SIMPLIFIED DRAWINGS ...... 154 APPENDIX............ 155 Hardware Manual COMBILOG 1020...
  • Page 6 Hardware Manual COMBILOG 1020...
  • Page 7 Protective System ..............22 Ambient Temperature ............... 23 Front panel / Pin Assignment............ 23 Connection................25 Power Supply................26 Bus Connection................. 27 Sensor Connection ..............29 Several Sensors at one Datalogger .......... 30 3.10 Module Jack................30 Hardware Manual COMBILOG 1020...
  • Page 8 Digital Output Channel ............. 58 Arithmetic Channel ..............61 Setpoint Channel..............65 Alarm Channel................65 Threshold Values ..............65 Error Handling ................66 DISPLAY / MENU OPERATION ....67 Display and Operation .............. 67 Menu Items................67 Hardware Manual COMBILOG 1020...
  • Page 9 Transmission Speed and Line Length ........92 10.4 Bus Cable ................. 93 10.5 Bus Plug..................94 10.6 Bus Termination................ 95 10.7 Shielding ................... 97 10.8 PC Bus Connection..............99 10.9 Potential Equalization ............. 100 10.10 Adjustment of Address and Baud Rate........100 Hardware Manual COMBILOG 1020...
  • Page 10 Analog Inputs (8 per Module) ..........148 12.5 Digital Inputs/Outputs (6 per Module)........149 12.6 Interfaces................149 12.7 Operating Conditions.............. 150 12.8 Electromagnetic Compatibility ..........150 12.9 Shell ..................152 12.10 Circuit ..................152 12.11 Accessories / Notice for Orders..........152 Hardware Manual COMBILOG 1020...
  • Page 11 Configuration table for the datalogger........159 Accuracy / Resolution / Noise / Linearity / Temp-Drift .... 160 Algorithms for special meteorological parameters ....163 Description of Short Real Format..........167 Notes for installing configuration software COMBILOG.EXE.. 168 Hardware Manual COMBILOG 1020...
  • Page 12 Hardware Manual COMBILOG 1020...

  • Page 13: General Preliminary Remarks

    Therefore if you have not yet operated the datalogger COMBILOG 1020, you should first of all study this manual thor- oughly. While initiating or operating the appliance or in case ser- vice is required always observe the notices given in this manual.

  • Page 14: Contact For Inquiries

    COMBILOG 1020. Contact for Inquiries In case of inquiries concerning the datalogger COMBILOG 1020 please contact your local distributor or directly Theodor Friedrichs & Co. GmbH. Hardware Manual COMBILOG 1020...

  • Page 15: System Description

    The COMBILOG 1020 can easily be mounted on a 35 mm stan- dard rail, using its „snap-in“ clamp, and is therefore suitable for control cabinet installation, or similar.

  • Page 16: Range Of Application

    98/ME/NT/2000/XP software. Range of Application As described under (2.1), the most varying measurement tasks can easily be accomplished by means of the COMBILOG 1020. Some typical applications are e.g. measurement of temperature via resistance thermometers (Pt100), operation with combined sensors with current- or voltage output (e.g. windspeed meas-...

  • Page 17: Features

    PC. If the datalogger COMBILOG 1020 is not integrated in a bus, an additional RS232-interface is available for the user. This interface allows only a point-to-point connection up to max. 20 m (65 feet), but all functions of the RS485-interface remain available.
  • Page 18 Linearization, scaling and conversion into physical units Option to adjust, modify or reset the processing parameters individually Master function to retrieve data from external modules Programmable averaging Automatic message transmission via modem or SMS Non-volatile storage for program, parameters and data Hardware Manual COMBILOG 1020...
  • Page 19 Integrated RS 485 and RS 232 communication interface Autonomous function independent of subsequent systems Definition of the transmission protocol (ASCII,PROFIBUS, MODBUS (on request)) Definition of the telegram format (baudrate and parity) Definition of the output format (field length/decimals/unit) Simple instruction set Hardware Manual COMBILOG 1020...
  • Page 20 Automatic report in case of programmable conditions via mo- dem or SMS Selectable scan rate between 0.5 sec. and 60 min, averaging interval between 1 s and 12 h Event controlled averaging interval Hardware Manual COMBILOG 1020...

  • Page 21: Configration Software

    Configration Software The COMBILOG 1020 is delivered with a configuration software for MS WINDOWS 98/ME/NT/2000/XP. This software allows the individual configuration of the datalogger. Measuring channels are defined as variables in a variable table. Predefined sensors can be selected from the integrated data- base.

  • Page 22: Installation

    INSTALLATION Mounting / Fixing The datalogger COMBILOG 1020 has a snap-on mounting for in- stallation on standard profile rails 35 mm (1.4 inch) according to DIN EN 50022. Installation on the DIN rail is performed by means of the four straps on the rear side of the datalogger.

  • Page 23: Ambient Temperature

    -40°C and +85°C. Attention: For certain memory card types, differing temperature ranges have to be considered. Front panel / Pin Assignment The front panel of the datalogger COMBILOG 1020 shows follow- ing elements: 3 4 5 6 7 MEMORY CARD / PCMCIA...
  • Page 24 Voltage supply - Ground for digital I/Os RS485-bus interface A SOURCE Source output RS485-bus interface B Analog input + RS232 receive Analog input - RS232 transmitt AGND Ground for analog input RS232 ground Table 3.2 Pin assignment Hardware Manual COMBILOG 1020...

  • Page 25: Connection

    ATTENTION: Before final installation, a suitable protection earth cable with terminal has to be connected to the ground connector at the back of the datalogger. Assure that the toothed washer is firmly pressed into the housing surface. Hardware Manual COMBILOG 1020...

  • Page 26: Power Supply

    Figure 3.2 Connection of the distribution voltage Voltage range +10 ... +18 VDC Power input 0.1 W typical (up to 1W maximum, depending on configura- tion) Internal protector (reversible) excess current 0.1 A M excess voltage Hardware Manual COMBILOG 1020...

  • Page 27: Bus Connection

    Non-regulated DC voltage between +10 and +18 VDC is sufficient for the power supply of the datalogger COMBILOG 1020. The in- put is protected against excess voltage and current and against reverse polarity. The power consumption remains approximately constant over the total voltage range, due to the integrated switching controller.
  • Page 28 Note: When connecting the logger to the bus, the two bus inter- faces A and B must not be interchanged. Note: The stub cable should be as short as possible, not longer than 30 cm (12 inch). Hardware Manual COMBILOG 1020...

  • Page 29: Sensor Connection

    5. The respectively valid pin assignment is determined by means of the configuration software. Since the digital outputs are "passive" the processing of external elements always requires an external current supply. In case of larger loads this should be independent of the datalogger supply. Hardware Manual COMBILOG 1020...

  • Page 30: Several Sensors At One Datalogger

    (14 sensors max.; 8 analog and 6 digital). 3.10 Module Jack The datalogger COMBILOG 1020 has a bus connection facility on the left and on the right side of the housing, featuring intercon- nection of the 10…18 VDC supply and the bus signal, for several COMBILOG’s.
  • Page 31 A I N 7 A I N 8 A I N 1 A I N 2 DIN-rail 35 mm (1.4 inch) Tragschiene 35 mm Modul-Schnellverbinder Module Jack ICM 100 Figure 3.5 Connection of two COMBILOG 1020 with Module Jacks Hardware Manual COMBILOG 1020...

  • Page 32: Signal Processing

    SIGNAL PROCESSING The datalogger COMBILOG 1020 has eight analog inputs and six digital inputs/outputs. Several different sensor signals as well as digital inputs and digital output signals can be connected and processed simultaneously. Analog Inputs The analog inputs serve to collect sensor signals, or to acquire control values respectively.
  • Page 33 + 3,5 V + 1,0 V high (1) Figure 4.1 Definition of signal levels and logic levels The outputs are open-collector type with a maximum voltage of 18 VDC and a maximum current of 100 mA. Hardware Manual COMBILOG 1020...

  • Page 34: Internal Reference Voltage, Offset- And Drift Correction

    (at 20°C) has to be indicated. Using the above described methods, the analog inputs can al- most completely be kept free from temperature drift. Hardware Manual COMBILOG 1020...

  • Page 35: Internal Processing

    The datalogger can be activated - by means of ap- propriate configuration - to provide a corresponding signal at the digital I/O in case of alarm. The digital I/Os are directly addressed and monitored respectively by the microprocessor µP. Hardware Manual COMBILOG 1020...
  • Page 36 µP for all tasks are retentively stored in a Flash EPROM. The timing control of the data processing is realised by an inter- nal real time clock buffered by Gold cap capacitor. Hardware Manual COMBILOG 1020...
  • Page 37 SOURCE I/O 3 Flash EEPROM In + Digital I/O In - I/O 4 256k x 8 AGND SOURCE I/O 5 In + In - I/O 6 AGND Figure 4.2 block diagram of the datalogger COMBILOG 1020 Hardware Manual COMBILOG 1020...

  • Page 38: Scan Rate And Power Consumption

    1 hour. In this selected time period all configured chan- nels are scanned and processed correspondingly. The power consumption of the datalogger COMBILOG 1020 depends on this scan rate. Between the measuring cycles the datalogger will be set into a so-called “Sleep-Mode“. During this mode the datalog- ger needs only about 5 mW.

  • Page 39: Signal Processing

    NORTH). For counter variables not the average, but the number of pulses is calculated. A change of the average interval can be intitiated by certain pro- gram conditions, thus featuring temporary higher time resolution of measured signals. Hardware Manual COMBILOG 1020...

  • Page 40: Functional Description

    FUNCTIONAL DESCRIPTION The datalogger COMBILOG 1020 has a total of 32 logical chan- nels for the collection, processing and output of various kinds of sensor information. These 32 channels can be configured as: Analog Input Channel Digital Input Channel Digital Output Channel...

  • Page 41: Analog Input Channel

    Current measurement Resistance measurement Temperature measurement with thermocouples For each of these principles the datalogger COMBILOG 1020 of- fers several types of measurement. For voltage measurement the types of measurement single-ended and differential can be used. Currents up to 25 mA are directly measured by the datalogger.
  • Page 42 (In+ and In-). Measuring range is between 0 and ±10 V. Note: With differential measurements both voltages have to be within 10 V referred to AGND (Common-Mode-Range). It is recommended to connect the In- to A with a high ohmic resistance. Hardware Manual COMBILOG 1020...
  • Page 43 U = U1 measuring voltage U Figure 5.1 Voltage measurement - single-ended Connection scheme Circuit AIN 1 AIN 2 = U2 AGND measuring voltage U U = U1 – U2 Figure 5.2 Voltage measurement - differential Hardware Manual COMBILOG 1020...
  • Page 44 The voltage has to be divided by R Note: The precision of the current measurement with external shunt depends on the precision of the resistor being used. Note: The input resistance of the current measurement channel depends on the current to measure! Hardware Manual COMBILOG 1020...
  • Page 45 Connection scheme Circuit connection scheme circuit In + A I N 1 A I N 2 Rext AGND Rext external shunt I = U1 / Rext measuring current I Figure 5.4 Current measurement with external shunt Hardware Manual COMBILOG 1020...
  • Page 46 R . Measuring range is be- tween 0 and 20 kΩ. Note: The datalogger COMBILOG 1020 supports resistance measurement in 2-, 3- and 4-wire technique. With resistance measurement in 2-wire technique the supply lines cause an addi- tional voltage drop, thus distorting the measuring result and influ- encing the measuring accuracy.
  • Page 47 A I N 2 In + In - U2-U3 AGND ∆ Rx = (U2-U3)/U0 * R0, ∆Rx = 0 Rx = (U2-U3)/U0 * R0, Rx = 0 measuring resistance Figure 5.7 Resistance measurement in 4-wire technique Hardware Manual COMBILOG 1020...
  • Page 48 This voltage is largely proportional to the temperature difference. It can be measured and used for temperature meas- urement purposes. With datalogger COMBILOG 1020 the ther- moelectric voltage is measured differentially. Since thermocouples can only measure a temperature difference...
  • Page 49 = 0°C). The datalogger then calculates the tempera- ture at the measuring position by means of the linearization curve as ϑ ϑ = Lin(U +Lin ). The datalogger will be informed about the reference temperature ϑ via the configuration software (“cold junction temperature”). Hardware Manual COMBILOG 1020...
  • Page 50 ICJ 104 Connection scheme Circuit SOURCE AIN 1 AIN 2 ϑ ϑ Ω AGND 1MΩ ϑ ϑ ϑ = Lin ( U1 + Lin ϑ Picture 5.9 Temperature measurement with external cold junction compensation Hardware Manual COMBILOG 1020...

  • Page 51: Digital Input Channel

    Furthermore it is possible to connect up to 6 sensors with a serial 8-bit-graycode-output to the COMBILOG 1020, e.g. wind direction sensor type 4122. By means of an external module type 1025 8 bit status signals can be measured at each input.
  • Page 52 COMBILOG 1020 or for transmission via bus. The digital input is set (switch closed) as long as the signal volt- age remains under the threshold value of 1.0 V.
  • Page 53 Circuit +10 .. 18 VDC I/O 1 I/O 1 D I G I T A L TH. FRIEDRICHS & CO. Figure 5.10 Digital status recording signal diagram: Signal diagram: I/O 1 status "0" "1" "0" "1" Hardware Manual COMBILOG 1020...
  • Page 54 It is 1100 Hz for the 5 MHz version (low power version) and 2000 Hz for the 20 MHz version (standard version). Hardware Manual COMBILOG 1020...
  • Page 55 I/O 1 time base counting pulse measurand 0,6 Hz 0,6 Hz 0,6 Hz (TB = 5 sec) - low level: I/O 1 time base counting pulse measurand 0,4 Hz 0,2 Hz 0,4 Hz (TB = 5 sec) Hardware Manual COMBILOG 1020...
  • Page 56 Progressive Counter When configuring a digital input as a progressive counter the datalogger COMBILOG 1020 constantly monitors the digital input for a signal variation. If a negative signal edge (1 > 0) occurs at the input, the current result is increased by 1.
  • Page 57 +10 .. 18 VDC I/O 1 I/O 1 D I G I T A L TH. FRIEDRICHS & CO. Figure 5.12 Progressive Counter Signal diagram: signal diagram: I/O 1 counting pulse counting measurand Hardware Manual COMBILOG 1020...

  • Page 58: Digital Output Channel

    Via the digital inputs/outputs I/O 1 to I/O 6 on the datalogger COMBILOG 1020 digital status can be output in digital form, ac- cording to the configuration. A typical case of application would be e.g. the local output of an acoustic or optical signal in case a limiting value is exceeded or undershot by a measured value.
  • Page 59 A typical application is to switch off a modem after a specified time to reduce the power comsumption of battery powered systems. Hardware Manual COMBILOG 1020...
  • Page 60 Digital Status Output: Circuit Connection scheme connection scheme circuit I/O 1 I/O 1 SUPPLY RS 485 RS 232 0.1 AM Figure 5.13 Digital status output Signal diagram: signal diagram: I/O 1 status "0" "1" "0" "1" Hardware Manual COMBILOG 1020...

  • Page 61: Arithmetic Channel

    Special functions for which the existing commands are not suffi- cient, can be carried out by a user specific download program for the COMBILOG 1020. For this case, some implemented special functions can be used for assistance. Note: The calculation time of an Arithmetic Channel is 0.6 ms.
  • Page 62 Humidity from dry and wet temp. Standard deviation Sdev vector of wind speed vector of wind direction 1)No specification available as the time depends to the specific function and the program. Table 5.1 Arithmetic operators and processing times Hardware Manual COMBILOG 1020...
  • Page 63 < -1. At the function arccos – the value 0 will be assigned to the Arithmetic Channel for a value > 1 and the value will be assigned for a value < -1. Hardware Manual COMBILOG 1020...
  • Page 64 (master function) Note: Logic combinations, e.g. if-then relations, are not yet pos- sible respectively would require a user-specific software (upon request). Hardware Manual COMBILOG 1020...

  • Page 65: Setpoint Channel

    Setpoint Channel This channel features transmission of values via bus to the data- logger COMBILOG 1020 . The values are allocated to the set- point-channel and are thus at the disposal of the datalogger for further processing. A typical application for the setpoint-channel is e.g. the dynamic variation of control thresholds.

  • Page 66: Error Handling

    In case of a sensor failure the last valid value can be maintained, set to the corresponding limits or set to a default value. Furthermore the COMBILOG 1020 can send messages via mo- dem or SMS automatically to report errors or other conditions, e.g.

  • Page 67: Display / Menu Operation

    DISPLAY / MENU OPERATION Display and Operation The datalogger COMBILOG 1020 has a display with 2 lines of 16 characters each, in order to allow the indication of the measured values of each channel. Furthermore the settings of the datalog- ger can be recalled and changed if desired (therefore the input by the press/ rotary knob must be unlocked;...

  • Page 68: Hardware Manual Combilog

    Channel n 35 °C PCMCIA: 488kB LOG: 208 2048KB free: 385kB free: 209d Date : 16.02.95 Time : 16:08:58 Note: The number, designation and indication of the measured value of the channels depend on the configuration. Hardware Manual COMBILOG 1020...
  • Page 69 Addr.: 1 19200E Knob Input locked Note: If the push/turn selection knob is pressed at any point in the configuration menu for about 1 second you will return to the initial position in the main menu. Hardware Manual COMBILOG 1020...
  • Page 70 Note: The value of the display contrast can be set in steps from 0 to 100. With low values the display will be set dark and with the value 100 it will be set to maximum brightness. Hardware Manual COMBILOG 1020...
  • Page 71 1s and 12h. In the example the measured values will be measured again every 10 seconds and after 60 seconds the average value will be calculated (here by means of 6 measured values). Hardware Manual COMBILOG 1020...
  • Page 72 If “LEDs“ is set to ON the LED-display is switched on and the two LEDs RUN and ERR on the front of the datalogger show the ac- tual operating state (mode) of the datalogger. With the selection OFF the LEDs will be switched off. Hardware Manual COMBILOG 1020...
  • Page 73 19200 and 38400 bps. Additionally to the baud rate the parity can be set . Possible values are N (no parity), E (even parity) and O (odd parity). For the address a value between 1 and 126 can be set. Hardware Manual COMBILOG 1020...
  • Page 74 (enabled). Note: If no operation is performed at the datalogger for approx. 30 seconds it will return to the main menu and the press/rotary knob input will automatically be locked. Hardware Manual COMBILOG 1020...
  • Page 75 For the setpoint channel a setpoint value can be defined if this allowed configuration software COMBILOG.EXE . This value can be used by the datalogger for further processing (e.g. for the arithmetic channel). For the arithmetic channel and the alarm channel no settings can be made. Hardware Manual COMBILOG 1020...
  • Page 76 (measured values of the channels) will be lost. Note: In case of using an SRAM memory card the internal data memory is not used. The card must not be pulled out, because all data will be lost after reinserting! Hardware Manual COMBILOG 1020...
  • Page 77 Note: The time will be stopped if the press/rotary knob is pressed in the main menu, date and time display. The time will continue running if the date or time setting is confirmed by pressing the knob. Hardware Manual COMBILOG 1020...

  • Page 78: Data Storage

    DATA STORAGE General Remarks to Data Storage Data storage with the COMBILOG 1020 can be accomplished in three different manners: Internal RAM : 252 KByte are available as circulated buffer for data recording. External PCMCIA SRAM Card: This is an extension up to 32 Mbytes memory.

  • Page 79: Internal Data Storage

    Configuration Program. Internal Data Storage The COMBILOG 1020 is delivered with 256 Kbytes RAM mem- ory. For data recording 252 Kbytes memory are available as cir- culate memory (first in, first out). If the memory is read out, at first the oldest record will be output and the corresponding space is enabled.
  • Page 80 At 256 Kbytes internal RAM 2580 * 3600/ (42 * 864) = 255,9 days can be recorded. The data memory is buffered by a capacitor (gold cap), that en- sures preservation of data for several days in case the main power is switched off. Hardware Manual COMBILOG 1020...

  • Page 81: External Data Storage With Pcmcia Sram Card

    (";" or tabulator) and the decimal character ("." or ",") is selectable by the user. If a PCMCIA Flash Card is plugged in a COMBILOG 1020 during operation all data from the internal RAM will be transmitted to the PCMCIA Flash Card when the next record is to be stored. During this time continuous data storage is interrupted.
  • Page 82 At present only 16 bit drivers are available for the file systems above, so it can not be used for Windows NT/2000. Theodor Friedrichs & Co. delivers pre-formatted flash memory cards, that can directly used for the Combilog. Structure of the data file COMBILOG.LOG:...
  • Page 83 Following equation can be used: 86400 d = period of data recording in days k = capacity of the memory card in byte = length of one data set in byte M = average interval in seconds Hardware Manual COMBILOG 1020...

  • Page 84: Master Function

    (slaves) This feature is used to extend the number of inputs and outputs of the COMBILOG 1020 in case the 8 analog inputs and 6 digital inputs/outputs of the datalogger are not sufficient. Other COMBILOG’s 1020 can be connected to the RS-485 interface as...
  • Page 85 (averaging etc.) is executed. If averaging is neces- sary, use the read function of the arithmetic channel! The scan rate corresponds to the “Logging Interval” Within one RS485 bus system, only one COMBILOG 1020 can be defined as master. Hardware Manual COMBILOG 1020...
  • Page 86 Bild 8.1 Example Master Slave System Hardware Manual COMBILOG 1020...

  • Page 87: Initiation And Test

    INITIATION AND TEST Before Connecting the Device Before connecting the supply voltage to the datalogger COMBILOG 1020 , once again check all connections. Watch that the supply voltage never exceeds 18 VDC. After Connecting the Device After connecting the supply voltage the datalogger displays the current operating state on the two LEDs at the front of the device (if the LED-display has not been switched off).
  • Page 88 3. measured value too high or too low. A telegram has just been dispatched from the short off datalogger via the bus to a control system or to a Table 9.1 Assignment of LED functions (flash frequency approx. 1Hz) Hardware Manual COMBILOG 1020...

  • Page 89: Structure Of The Bus Topology

    RS232 computer interface, is only useable in order to build point-to-point connections for a distance of max. 20 m (65 feet). At the COMBILOG 1020 the same data will per- manently be given out. Only the physical characteristics of the two interfaces are different whereas only those of the RS485 are appropriate in order to build a bus topology.

  • Page 90: Bus Interface

    RS 422 RS 485 100 m (325 ft) transmission route 187,5 K RS 232 10 m (32.5 ft) 10 K 100 K 10 M [bps] transmission speed Figure 10.1 Interrelation between transmission speed and line length Hardware Manual COMBILOG 1020...

  • Page 91: Bus Structure

    The following figures show a few examples for a possible set-up of bus topologies. The meaning of the symbols is: : bus user, : repeater and : bus termination. Figure 10.2 Simple ..line structure ..Figure 10.3 Extended ..line structure Hardware Manual COMBILOG 1020...

  • Page 92: Transmission Speed And Line Length

    127. 10.3 Transmission Speed and Line Length The transmission speed with the datalogger COMBILOG 1020 can be adjusted between 2,400 baud and 38.4 kbps. The permis- sible line lengths are reduced with increasing transmission speed.

  • Page 93: Bus Cable

    100 ... 130 Ω at f > 100 kHz characteristic impedance : operating capacity max. 60 pF/m conductor cross section : min. 0.22 mm² (AWG 24) attenuation max. 6dB referred to the overall length Hardware Manual COMBILOG 1020...

  • Page 94: Bus Plug

    Table 10.2 Pin assignment D-subminiature plug according to PROFIBUS Only signal leads A and B (and Shield) are absolutely obligatory for a (shielded) connection. All others can be installed together with these signal leads if required. Hardware Manual COMBILOG 1020...

  • Page 95: Bus Termination

    ± 2%, at least watt Prufibus COMBILOG DGND (5) terminal designation names Figure 10.5 Bus termination Note: The numbers in brackets in figure 10.5 indicate the pin number for the connection via the 9-channel D-subminiature plug. Hardware Manual COMBILOG 1020...
  • Page 96 Also with datalogger COMBILOG 1020 this option is given. Via the bus termination plug which is available as accessory and in- stalled at the right port on the frontside of the device, the bus ter- mination at this module can be additionally connected.

  • Page 97: Shielding

    Busabschluß bus termination Figure 10.6 Bus termination on the COMBILOG 1020 10.7 Shielding In case of increased interference we recommend to use shielded bus cables. In this case, a shielding should also be carried out for the cables from power supply and for the signal cables.
  • Page 98 RS 485 bus connection RS-485 Busverbindung MEMORY CARD / PCMCIA SUPPLY RS 485 RS 232 D I G I T A L TH. F Figure 10.7 Earthing of the bus line shield on the COMBILOG 1020 Hardware Manual COMBILOG 1020...

  • Page 99: Pc Bus Connection

    RS485 drivers is required for conversion purposes. Theodor Friedrichs offers a compact interface converter. Furthermore a repeater module is available from Theodor Frie- drichs. This module can be used as a repeater or as a converter.

  • Page 100: Potential Equalization

    1 ..127 1 ..126 2,400 bps baud rate 4,800 bps 9,600 bps 9,600 bps 19,200 bps 19,200 bps 38,400 bps Table 10.3 Setting variants for address and baud rate for the datalogger COMBILOG 1020 Hardware Manual COMBILOG 1020...
  • Page 101 If the LED ERR changes from "off" to "flash", a new program is just being transmitted to the datalogger. The values are taken over as soon as the data transmission via bus has been successfully com- pleted. Hardware Manual COMBILOG 1020...
  • Page 102 Adjustment via interface, RS232 by means of the configu- ration software: In addition to the bus interface RS485, the datalogger COMBILOG 1020 has an RS232 computer interface. By means of the configuration software COMBILOG.EXE addresses can be assigned and bus parameters can be adjusted via the RS232 in- terface similarly as when using the RS485 interface.

  • Page 103: Communication

    MODBUS-RTU-protocol according to PI-MBUS-300 Rev. D The ASCII protocol and the PROFIBUS protocol can be operated simultaneously and will be delivered as standard. The MODBUS protocol requiresa different firmware version and should be or- dered separately. Hardware Manual COMBILOG 1020...

  • Page 104: Data Format

    11.3 Data Format The datalogger COMBILOG 1020 supports following data for- mats: MODBUS Format Start- Data- Parity Stop- Length ASCII PROFI- of char- acter Table 11.1 Supported data transfer formats The data format 8E1 with even parity (E=even) corresponds to...

  • Page 105: Output Format

    2 byte r e a l 4 byte ≤ x ≤ (dec - 2 (dec + 2 ≤ i ≤ SET 8 1 byte (dec 0) (dec 255 ) Table 11.3 Format settings for transmission in PROFIBUS-format Hardware Manual COMBILOG 1020...
  • Page 106 (5030940) 42 49 3C D3 (50 . 3094) xx xx (50309400) 42 49 3C D3 (50 . 3094) Table 11.6 Output formats for the transmission to PROFIBUS- and MODBUS-format (the decimal notation is given in brackets). Hardware Manual COMBILOG 1020...
  • Page 107 The number of decimals must, however, not be selected too large, if the value is to be transmitted in integer-format (range of values in integer-format limited to -32768 to +32767). Hardware Manual COMBILOG 1020...

  • Page 108: Ascii-Protocol

    3 CT 19200 bps 1..42 CT 600 sec 38400 bps 1..85 CT Table 11.7 Values and adjustment range for periods T1, T2 and T3 (CT: character time: 1 CT = character length [bit] / baud rate [bps]) Hardware Manual COMBILOG 1020...
  • Page 109 ReqDataUnit ResDataUnit n+4 characters n+2 characters request telegram with check sum: response telegram with checksum: ReqDataUnit ResDataUnit n+6 characters n+4 characters Positive Acknowledge Negative Acknowledge 1 character 1 character Hardware Manual COMBILOG 1020...
  • Page 110 DA address. ResDataUnit: Response-Data-Unit (length = 1 ... n byte): The Response-Data-Unit identifies a data field in the response telegram, which contains the data for the calling communication partner. Hardware Manual COMBILOG 1020...
  • Page 111 "Acknowledge"- character ( hex 06). NAK: No-Acknowledge (length = 1 byte): When a request has not been performed correctly, a "No Ac- knowledge" ( hex 15) is sent back. Hardware Manual COMBILOG 1020...
  • Page 112 # aa C t..t cc <cr> Pointer setting (1) to position x with # aa Cx..x cc <cr> Read the events from pointer 2 with # aa e cc <cr> > 1 b..b cc <cr> > 0 e cc <cr> Hardware Manual COMBILOG 1020...
  • Page 113 If there is no further communication within 1 minute, password release is deleted. For passwords, only capital letters and numbers are accepted. Hardware Manual COMBILOG 1020...
  • Page 114 ASCII - string n..n measuring rate and averaging interval ASCII - string a..a number of events ASCII - string p..p password max. 8 ASCII - string Table 11.10 Explanation of the command characters in the ASCII-protocol Hardware Manual COMBILOG 1020...
  • Page 115 If the bit Kn in the channel status is set it indicates that an error has occurred in channel n. A channel error is given when the measuring value is outside of the linearisation, e.g. in case of a sensor break down or of a short circuit of transmission. Hardware Manual COMBILOG 1020...
  • Page 116 ASCII "2" Arithmetic Channel (AR) ASCII "3" Digital Output Channel (DO) ASCII "4" Digital Input Channel (DI) ASCII "5" Setpoint Channel (VO) ASCII "6" Alarm Channel (AL) Coding <channel configuration>: Bit 1: tare/reset possible Bit 2: average value storage configured Hardware Manual COMBILOG 1020...
  • Page 117 IEE Std 754 Short Real Format (Example: 50,3094 -> 42 49 3C D3). Depending on the programming language being used, different terms are used, e.g. format "single" with use of Turbo Pascal. (re- fer to appendix H) Hardware Manual COMBILOG 1020...
  • Page 118 <hour> ........ASCII ........ 2 char <minute> ........ASCII ........ 2 char <second>........ASCII ........ 2 char measuring rate and averaging interval (n..n) length = 7 char <measuring rate in sec.>...ASCII ........ 2 char <averaging interval in sec.> ..ASCII ........ 5 char Hardware Manual COMBILOG 1020...

  • Page 119: Profibus-Protocol

    T3max is exceeded (communication timeout, see also chapter 5.8, error handling) can be adjusted by means of the configuration software COMBILOG.EXE . The default val- ues for T2min is 1 CT and for T3max 60 sec. 11.6.2 Telegram Format Hardware Manual COMBILOG 1020...
  • Page 120 For data transmission via PROFIBUS following telegram formats are relevant for the datalogger COMBILOG 1020 : Formats with fixed information section length without data field: Formats with variable information section length with data field: DataUnit Formats with fixed information section length with data field:...
  • Page 121 32 bytes, the datalogger can also be integrated in bus topologies with DP-protocol. LEr: Length-Repeated (length = 1 byte): The Length-Repeated LEr corresponds to the specification Length LE. It is stated again in the telegram for data protection control purposes. Hardware Manual COMBILOG 1020...
  • Page 122 PROFIBUS-Norm DIN 19245, part 1. ReqDataUnit: Request-Data-Unit (length = 0 ... n byte): The Request-Data-Unit identifies a data field in the request tele- gram which contains the data for the communication partner with the DA address. Hardware Manual COMBILOG 1020...
  • Page 123 The Short-Acknowledgement-Frame SC identifies a telegram that can be sent back to the communication partner as an acknowl- edgement. With SDA-requests it can be used as a positive re- ceive acknowledgement. With SRD-requests it can be returned as a negative acknowledgement. Hardware Manual COMBILOG 1020...

  • Page 124: Instruction Set In The Profibus-Protocol

    With PROFIBUS every bus user has so-called "service access points" (SAPs), via which he can exchange data with the commu- nication partners. With the datalogger COMBILOG 1020 the SAPs are used for identifying (addressing) the various data and commands of the datalogger. By specifying the DSAP-number...
  • Page 125 Default-SAP. The Default-SAP has the number 0. It does not have to be indicated separately in the telegram. DSAP and SSAP entries are only possible with telegrams with data field (SD2 and SD3 telegrams). Hardware Manual COMBILOG 1020...
  • Page 126 [<tare/reset>[<P1>[... [<Pn>] ] ] ] pos./neg. acknowledge [<tare/reset>[<P1>[... [<Pn>] ] ] ] no response Table 11.13 PROFIBUS - layer 2 commands Note: If more data are in the ReqDataUnit as required, they will be ig- nored. Hardware Manual COMBILOG 1020...
  • Page 127 If the bit Kn in the channel status is set it indicates that an error has occurred in channel n. A channel error is given when the measuring value is outside of the linearisation, e.g. in case of a sensor break down or of a short circuit of transmission. Hardware Manual COMBILOG 1020...
  • Page 128 00: no format hex 01: B O O L hex 02: INTEGER hex 03: R E A L Coding <host input>: hex 00: host input is not possible hex 01: host input is possible (tare/reset/dig.out/setpoint values) Hardware Manual COMBILOG 1020...
  • Page 129 The values following the <tare/reset>-byte are allocated to the writeable channels of the datalogger, according to the order of their appearance. Writeable channels are setpoint channels and digital output channels. Hardware Manual COMBILOG 1020...

  • Page 130: Modbus-Protocol

    1,5 CT 3,5 CT 3,5 CT 600 sec 19200 bps 38400 bps Table 11.14 Values and adjustment range for periods T1, T2 and T3 (CT: character time: 1 CT = character length [bit] / baud rate [bps]) Hardware Manual COMBILOG 1020...
  • Page 131 / data CRC > 3,5 CT 1 byte 1 byte n byte 2 byte response telegram idle interval ADR function parameters / data CRC > 3,5 CT 1 byte 1 byte n byte 2 byte Hardware Manual COMBILOG 1020...
  • Page 132 ADR .... module address (hex 00..7F) FNR .... function number (hex 03) REGSTA ..address of the first register to be read REGNUM ..number of registers to be read BYTNUM ..number of databytes (max. 64) Hardware Manual COMBILOG 1020...
  • Page 133 REGSTA ..address of the first register to be read REGNUM ..number of registers to be read BYTNUM ..number of databytes (max. 64) D0 - Dn ..databytes (max. 64) CRC .... check sum CRC polynom: u CRC start value: hex FFFF Hardware Manual COMBILOG 1020...
  • Page 134 ADR .... module address (hex 00..7F) FNR .... function number (hex 06) REGADR ..address of the register to be written DATA ……..dataword (hex 0000…FFFF) CRC .... check sum CRC polynom: u CRC start value: hex FFFF Hardware Manual COMBILOG 1020...
  • Page 135 DATA ADR .... module address (hex 00..7F) FNR .... function number (hex 08) SUBFCT ..subfunction number (hex 0000) DATA ..dataword (hex A537) CRC .... check sum CRC polynom: u CRC start value: hex FFFF Hardware Manual COMBILOG 1020...
  • Page 136 REGSTA ..address of the first register to be written REGNUM ..number of registers to be written BYTNUM ..number of databytes (max. 64) D0 - Dn ..databytes (max. 64) CRC .... check sum CRC polynom: u CRC start value: hex FFFF Hardware Manual COMBILOG 1020...
  • Page 137 Channel 32 real high word 0 ... 65535 005F ro/rw Channel 32 real low word 0 ... 65535 Attention: The low word and the high word of a channel must al- ways be read or written simultaneously. Hardware Manual COMBILOG 1020...

  • Page 138: Device Identification (V

    Serial number 6 Char 0304..030D Location 20 Char Device identification Register Type Contents Range 0400..0404 Vendor name ("Friedrichs") 10 Char 0405..0408 Model name ("COMBILOG") 8 Char 0409..040C HW-revision ("xy.yy___") 8 Char 040D..0410 SW-revision ("xy.yy___") 8 Char Hardware Manual COMBILOG 1020...

  • Page 139: Status Information (Z

    K16..K13 , K12..K9 = hex xy = 3. Byte K8..K5 , K4..K1 = hex xy = 4. Byte If the bit Kn in the channel status is set it indicates that an error has occurred in channel n. Hardware Manual COMBILOG 1020...
  • Page 140 10E0..10FF Channel information for Channel 8 1100..111F Channel information for Channel 9 1120..113F Channel information for Channel 10 1140..115F Channel information for Channel 11 1160..117F Channel information for Channel 12 13E0..13FF Channel information for Channel 32 Hardware Manual COMBILOG 1020...
  • Page 141 Process output Coding <Reset, storage>: hex 0 No reset, no storage of channels hex 1 Reset valid, no storage of channels hex 2 No reset, storage of channels enabled hex 3 Reset valid, storage of channels enabled Hardware Manual COMBILOG 1020...
  • Page 142 Value 92 real Low Word 0 ... 65535 Note: The oldest record will be load to the register 3002 to 30B9 while reading register 3001. The number of values depends on configuration. Reserved for download functions FD00..FFFF Hardware Manual COMBILOG 1020...

  • Page 143: Sample Program

    Note: In several programming languages the initialisation of the serial interface with even parity and 8 data bits will not be sup- ported. The COM-interface in the PC and the bus interface in the datalogger have to be adjusted and configurated on "(N)o parity". Hardware Manual COMBILOG 1020...

  • Page 144: Autocall Function

    11.10 Autocall Function The autocall function enables the datalogger COMBILOG 1020 to send messages automatically via modem or as SMS. The condi- tions, at whitch messages should be send, can be defined by the configuration program. Following options are available: Dial Conditions: •...
  • Page 145 This message will be transmitted together with the device type (COMBILOG), the serial number and the location of the module. To get a list of supported GSM modems please contact your local distributor or Theodor Friedrichs & Co. directly. Hardware Manual COMBILOG 1020...

  • Page 146: Modem Connection

    Note, that the ring will not be recognised at the RS485 port. Set the RS232 interface of the COMBILOG to 19200 bps, no parity. Prepare a cable between modem and COMBILOG as shown: COMBILOG 1020 MODEM 25-pin 9-pin Hardware Manual COMBILOG 1020...

  • Page 147: Specifications

    1, 2, 3, 4, 5, 10, 15, 20, 30 sec. 1, 2, 3, 4, 5, 10, 15, 20, 30 min. 1, 2, 3, 4, 6, 8, 12h A/D-conversion: Delta-Sigma, precision ca.16 Bit Accuracy of the real time clock: <1 s / day Hardware Manual COMBILOG 1020...

  • Page 148: Analog Inputs (8 Per Module)

    20 k Ω / 10 k Ω / 5 k Ω / 2.5 k Ω / Ranges: 1.25 k Ω / 625 Ω / 312.5 Ω / 200 Ω Output current: 0.5 mA Accuracy: 0.05 %, dependent on range Resolution: 0.003 .. 0.03 %, dependent on range Linearity: 0.01 % Hardware Manual COMBILOG 1020...

  • Page 149: Digital Inputs/Outputs (6 Per Module)

    8E1 / 8N1 / 8O1 Protocol: ASCII, PROFIBUS MODBUS (on request) Baud rate ASCII: 2,400 / 4,800 / 9,600 / 19,200 bps / 38,400 bps Baud rate PROFIBUS: 9,600 / 19,200 bps PCMCIA interface for memory cards Hardware Manual COMBILOG 1020...

  • Page 150: Operating Conditions

    EN 61000-4-4 O.K. asymmetr. ± 1.0 kV Signal lines Electro static discharge ± 4 kV Contact discharge Housing EN 61000-4-2 O.K. (ESD) ± 8 kV Air discharge Q: Quasipeak, M: Average, BK: Evaluation criteria, AM: Remarks Hardware Manual COMBILOG 1020...
  • Page 151 Refer to : Test report COMBILOG, DOCID: BW024003.DOC dated 22.02.1996. The requirements of EMV rules 89/336/EWG are fulfilled for domestic areas. Further EU rules concerning CE-labelling are not applicable at present. The instrument is equipped with CE label. Hardware Manual COMBILOG 1020...

  • Page 152: Shell

    12.11 Accessories / Notice for Orders The COMBILOG System comprises a number of options and ac- cessories, thus facilitating a quick and easy build-up and connec- tion. The main components are given in the following ordering code: Hardware Manual COMBILOG 1020...

  • Page 153: Hardware Manual Combilog

    2 m masts .-1- - with additional clamp for 6 m masts .-2- - with additional clamp for 10 m masts .-3- - Sun protection roof for stainless steel housing type 9910 9911.0000 Hardware Manual COMBILOG 1020...

  • Page 154: Simplified Drawings

    A I N 5 A I N 6 A I N 7 A I N 8 165 mm 189 mm 13.2 Side View middle of the frontside and the DIN rail 10 mm (0.4 inch) 83 mm (3.3 inch) Hardware Manual COMBILOG 1020...

  • Page 155: Appendix

    2-wire connection 3-wire connection 4-wire connection Thermoelement with Thermoelement with internal cold junction compensation external cold junction compensation Hardware Manual COMBILOG 1020...

  • Page 156: Pinout Arrangements For Digital Sensors At The Datalogger

    Pinout Arrangements for Digital Sensors at the Data- logger digital status output digital status recording frequency measurement progressive counter sensor for wind direction 8 bit gray-code + Vs +10..18V I/O 1 4122. x000 Hardware Manual COMBILOG 1020...

  • Page 157: Pinout Arrangements For Analog Sensors Of Th. Friedrichs

    4034 (0…20mA) 4034 (4…20mA) Resistance measurement, 4-line: AIN 1 Pt100 2010, 2014, 2015, 2017, 2018, 2019, Pt100 2020, 2030, 2100, 3010, 3030, 3100, 3130 Humidity 1 2 3112 Pt100 3112.1 4121, 4191.1 Pressure 1 2 5006 Hardware Manual COMBILOG 1020...

  • Page 158: Pinout Arrangements For Digital Sensors Of Th. Friedrichs

    Pinout Arrangements for digital Sensors of Th. Friedrichs (Examples)) Status: Frequency measurement: Sun yes/no white brown 6039 (6-pol.) Transmitter 7001 4091.1 Drop 7001 4041 Rain 7001 4033.01 4034 DIGITAL DIGITAL Counter: Gray Code: Precipitation 1 7041, 7051 4122 DIGITAL DIGITAL Hardware Manual COMBILOG 1020...

  • Page 159: Configuration Table For The Datalogger

    Configuration table for the datalogger Hardware Manual COMBILOG 1020...

  • Page 160: Accuracy / Resolution / Noise / Linearity / Temp-Drift

    0.03 % 0.003 % 0.05 % 0.03 % 0.10 % 0.010 % 0.003 % 0.03 % 0.03 % 0.10 % 0.010 % 3200 0.30 % 0.030 % (1) values correspond to 80% of the measuring range Hardware Manual COMBILOG 1020...
  • Page 161 0.25 mA 0.25 µA 0.10 % 0.010 % 12 nA/K 0.0625 mA 0.20 µA 0.30 % 0.030 % (1) values for T=20°C , (2) values estimated from the hardware specification (3) values correspond to 80% of the measuring range Hardware Manual COMBILOG 1020...
  • Page 162 (measuring range -200°...850°C, scan rate 1 s, averaging interval 1 min) ≤ 0.1°C with ambient temperatures without drift correction: -10°C...+30°C with external drift correction: typical 0.05°C with ambient temperatures -30°C...+60°C Reference resistance 100 Ω , TCR 1 Hardware Manual COMBILOG 1020...

  • Page 163: Algorithms For Special Meteorological Parameters

    = Dew point temperature in °C 0 00066 1 0 00115 = 6.1078 = 17.84362 (at TT < 0°C) = 17.08085 (at TT > 0°C) = 245.425 (at TT < 0°C) = 234.175 (at TT > 0°C) Hardware Manual COMBILOG 1020...
  • Page 164 * ln − Dew point from rel. humidity and air temperature ⎛ ⎞ ln . * 0 01 ⎜ ⎟ ⎝ ⎠ ⎛ ⎞ − ln . * 0 01 ⎜ ⎟ ⎝ ⎠ Hardware Manual COMBILOG 1020...
  • Page 165 The single components of the wind vector are determined by: * cos * sin The mean values are subsequently gained by: ∑ ∑ with i = Summation index n = Number of single values within averaging period Hardware Manual COMBILOG 1020...
  • Page 166 0°...90°, the true direction angle is determined by fol- lowing table: 180° − WD 180° + ′ WD 360° − ′ ′ WD′ WD′ WD = ° 0 is defined. Hardware Manual COMBILOG 1020...

  • Page 167: Description Of Short Real Format

    0 < e e < 255 then w = (-1) * (1.f) e-126 e = 0 f <> 0 then w = (-1) * (0.f) e = 0 f = 0 then w = (-1) Hardware Manual COMBILOG 1020...

  • Page 168: Notes For Installing Configuration Software Combilog.exe

    COMBILOG.EXE The COMBILOG 1020 can completely be configured by means of the COMBILOG.EXE program. This program is included with the delivery of the COMBILOG and is supplied compressed on several installation disks or CD Rom. Installation is carried out as follows: 1.
  • Page 169 Hardware Manual COMBILOG 1020...
  • Page 170 Hardware Manual COMBILOG 1020...

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