Theodor Friedrichs COMBILOG 1020 User manual

COMBILOG 1020
Datalogger
Hardware Manual Version 3.09

Hardware Manual COMBILOG 1020
2
Issue: 03.11.2005
Technical data are subject to change!

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©Copyright 1995-2003 by Theodor Friedrichs & CO (Ger-
many).
Copyrights: Operating instructions, manuals and software are
subject of copyright. Copying, duplication, translation, conversion
into any electronic medium or any machine readable form, as a
whole or in parts, is not permitted, with the exception of making a
back-up copy of the software for saving purposes, insofar as this
is technically feasible and is recommended by our company.
Contraventions will lead to compensation.
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. Theodor
Friedrichs products are not designed, intended, or authorized for
use as components and medical systems, or other applications
indeed to support or sustain life, or for any other application in
which the failure of the Theodor Friedrichs product(s) could cre-
ate a situation where personal injury or death may occur.
Any claims against Theodor Friedrichs in connection with the
hardware and software products described in this manual can ex-
clusively be based on the guarantee regulations. Any further
claims are excluded, in particular Theodor Friedrichs does not
give any guarantee as to the correctness of the contents of this
manual. Changes are subject to alteration and can be executed
any time without advanced notice.
Trade Marks: Without going into details, we want to point out the
usage of indications and entered trade marks, in particular the in-
dications and trade marks of Microsoft Corporation, International
Business Machines Corporation and Intel Corporation.
________________________________________

Hardware Manual COMBILOG 1020
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Hardware Manual COMBILOG 1020 5
CHAPTER SURVEY
Page
1GENERAL PRELIMINARY REMARKS ..... 13
2SYSTEM DESCRIPTION ......................... 15
3INSTALLATION ...................................... 22
4SIGNAL PROCESSING ........................... 32
5FUNCTIONAL DESCRIPTION ................. 40
6DISPLAY / MENU OPERATION ............... 67
7DATA STORAGE .................................... 78
8MASTER FUNCTION .............................. 84
9INITIATION AND TEST ........................... 87
10 STRUCTURE OF THE BUS TOPOLOGY.. 89
11 COMMUNICATION................................ 103
12 SPECIFICATIONS ................................ 147
13 SIMPLIFIED DRAWINGS ...................... 154
APPENDIX.................................................... 155

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Hardware Manual COMBILOG 1020 7
TABLE OF CONTENTS
Page
1GENERAL PRELIMINARY REMARKS ..... 13
1.1 On This Manual......................................................................... 13
1.2 Important Notice........................................................................ 13
1.3 Contact for Inquiries.................................................................. 14
2SYSTEM DESCRIPTION ......................... 15
2.1 System Overview ...................................................................... 15
2.2 Range of Application................................................................. 16
2.3 Features.................................................................................... 17
2.4 Configration Software ............................................................... 21
3INSTALLATION ...................................... 22
3.1 Mounting / Fixing....................................................................... 22
3.2 Protective System ..................................................................... 22
3.3 Ambient Temperature ............................................................... 23
3.4 Front panel / Pin Assignment.................................................... 23
3.5 Connection................................................................................ 25
3.6 Power Supply............................................................................ 26
3.7 Bus Connection......................................................................... 27
3.8 Sensor Connection ................................................................... 29
3.9 Several Sensors at one Datalogger.......................................... 30
3.10 Module Jack.............................................................................. 30

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4SIGNAL PROCESSING ........................... 32
4.1 Analog Inputs ........................................................................... 32
4.2 Digital Inputs/Outputs ............................................................... 32
4.3 Internal Reference Voltage, Offset- and Drift Correction.......... 34
4.4 Internal Processing................................................................... 35
4.5 Scan Rate and power consumption ......................................... 38
4.6 Signal Processing..................................................................... 39
5FUNCTIONAL DESCRIPTION.................. 40
5.1 Analog Input Channel............................................................... 41
5.2 Digital Input Channel ................................................................ 51
5.3 Digital Output Channel ............................................................. 58
5.4 Arithmetic Channel ................................................................... 61
5.5 Setpoint Channel...................................................................... 65
5.6 Alarm Channel.......................................................................... 65
5.7 Threshold Values ..................................................................... 65
5.8 Error Handling .......................................................................... 66
6DISPLAY / MENU OPERATION ............... 67
6.1 Display and Operation.............................................................. 67
6.2 Menu Items............................................................................... 67

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7DATA STORAGE .................................... 78
7.1 General Remarks to Data Storage............................................ 78
7.2 Modes of Data Storage............................................................. 78
7.3 Internal Data Storage................................................................ 79
7.4 External Data Storage with PCMCIA SRAM Card .................... 81
7.5 External Data Storage with PCMCIA Flash Card......................81
8MASTER FUNCTION .............................. 84
8.1 Master function ......................................................................... 84
9INITIATION AND TEST ........................... 87
9.1 Before Connecting the Device .................................................. 87
9.2 After Connecting the Device ..................................................... 87
9.3 Configuration of the Datalogger................................................ 87
10 STRUCTURE OF THE BUS TOPOLOGY.. 89
10.1 Bus Interface............................................................................. 90
10.2 Bus Structure ............................................................................ 91
10.3 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

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11 COMMUNICATION ................................ 103
11.1 Bus Interface .......................................................................... 103
11.2 Bus Protocol ........................................................................... 103
11.3 Data Format ........................................................................... 104
11.4 Output Format ........................................................................ 105
11.5 ASCII-Protocol........................................................................ 108
11.6 PROFIBUS-Protocol............................................................... 119
11.7 Instruction Set in the PROFIBUS-Protocol ............................. 124
11.8 MODBUS-Protocol ................................................................. 130
11.9 Sample Program .................................................................... 143
11.10 Autocall Function.................................................................... 144
11.11 Modem Connection ................................................................ 146
12 SPECIFICATIONS................................. 147
12.1 Power Supply ......................................................................... 147
12.2 Signal Inputs/Outputs ............................................................. 147
12.3 Signal Processing................................................................... 147
12.4 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

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13 SIMPLIFIED DRAWINGS ...................... 154
13.1 Front View............................................................................... 154
13.2 Side View ................................................................................ 154
APPENDIX.................................................... 155
A. Pinout Arrangements for Analog Sensors at the Datalogger . 155
B. Pinout Arrangements for Digital Sensors at the Datalogger .. 156
C. Pinout Arrangements for Analog Sensors of Th. Friedrichs...157
D. Pinout Arrangements for digital Sensors of Th. Friedrichs ....158
E. Configuration table for the datalogger..................................... 159
F. Accuracy / Resolution / Noise / Linearity / Temp-Drift ............ 160
G. Algorithms for special meteorological parameters .................. 163
H. Description of Short Real Format............................................ 167
I. Notes for installing configuration software COMBILOG.EXE..168

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Hardware Manual COMBILOG 1020 13
1 GENERAL PRELIMINARY REMARKS
1.1 On This Manual
The manual contains all important information concerning the
function, installation and initiation of the datalogger COMBILOG
1020.
The description of the configuration software for the COMBILOG-
System is available as Online-Help within the configuration soft-
ware COMBILOG.EXE.
1.2 Important Notice
Make sure to use the datalogger COMBILOG 1020 exclusively in
accordance with the notices, technical data and operating condi-
tions mentioned in this manual. In case of inexpert handling or
wrong application possible disturbances, measuring errors, ef-
fects on or from other appliances and facilities as well as possible
endangering of human lives or tangible assets cannot be ex-
cluded!
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.

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Please note further that there are other special regulations to be
observed in case of application in potentially explosive surroun-
dings (EExe, EExi, ...). These, however are not subject of this
manual, which only explains the general use of the datalogger
COMBILOG 1020.
1.3 Contact for Inquiries
In case of inquiries concerning the datalogger COMBILOG 1020
please contact your local distributor or directly
Theodor Friedrichs & Co. GmbH.

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2 SYSTEM DESCRIPTION
2.1 System Overview
The COMBILOG 1020 is a datalogger with compact design,
combined with integrated LC-display and memory slot suitable for
PCMCIA memory cards.
This datalogger was developed for meteorological, hydrological
and environmental measuring systems, but it is equally suitable
for countless further applications in industrial production.
The COMBILOG 1020 features high performance, compact de-
sign (SMD components), low power consumption and moderate
price.
The datalogger is equipped with 8 analog and 6 digital measur-
ing channels; further channels for numeric calculation may be
configurated. Two serial interfaces, RS232 and RS485, are built-
in, featuring communication via ASCII, PROFIBUS or MODBUS.
Data storage is achieved by internal RAM or PCMCIA memory
card, optionally.
„SELECT“ switch and 2-line LCD on the front panel allow to enter
or modify a number of different modes and functions, such as
scan rate and averaging time, as well as offset or gain.
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.
Thanks to its low power consumption, battery supplied systems
are possible, whereby the use of a solar panel enables any ex-
tension of measuring period. Especially for battery supplied sys-
tems the datalogger can be delivered with reduced internal proc-
essor clock. Please note, that in this case the performance may
be reduced too.

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For applications like outdoor use there is a version with stainless
steel housing available, as well as various other accessories.
Configuring of the datalogger is accomplished by means of an
easy to handle WINDOWSTM 98/ME/NT/2000/XP software.
2.2 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-
urement with DC generator) or position measurement and weight
measurement by displacement transducers and force transduc-
ers. With these applications the datalogger COMBILOG 1020
supports measuring methods with 2-, 3- and 4-wire technique.
The signal processing required in accordance with the sensors
used, such as gain, linearisation, offset correction etc. can be ad-
justed individually by software. An external amplifier is not re-
quired.
The digital signal inputs can be used, for example, to connect
switches, initiators, digit emitters and oscillators. Thus status indi-
cations can be collected and tasks like e.g. position measurings,
displacement measurements, angular measurements, frequency
measurements and timings can be carried out. Furthermore spe-
cial 8-bit-graycode-transmitters can be connected.
Special calculations of measured values are possible by arithme-
tic channels. In case the 8 analog and 6 digital inputs are not suf-
ficiant, other modules can be connected to the datalogger via the
RS485 bus. In this case the COMBILOG is used as a bus master
to read the measured values from the slave modules.

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All data can be transmitted via the integrated RS485 communi-
cation interface to a subsequent control (PLC) or to a computer
(PC). Up to 127 modules can be connected with the two-wire line
over distances of several km. At the same time the communica-
tion interface features programming and configuring the individual
application from a 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.
Furthermore the datalogger can send messages in case of user
definable conditions automatically via modem or SMS.
A configuration program is included (requires Microsoft
WINDOWS 98,ME,NT,2000, XP).
2.3 Features
Function:
Measurement inputs for all common types of sensors for I, U
and R.
Several different sensors can be connected simultaneously
Measured values monitored by programmable thresholds
Detection of sensor errors
Detection of communication errors
Programmable error handling
Calculation of average values, minima, maxima, standard
deviation and other arithmetic functions
256 kB RAM internal data storage, extendadble upto 8 MB
with PCMCIA SRAM card (max. 65536 datasets)
linear Flash memory cards up to 16 MB

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Inputs and Outputs:
8 analog inputs (for 2-, 3- and 4-wire connection)
6 digital inputs/outputs (I/O ports), configurable
Power Supply:
Power supply: +10 ... +18 VDC
All connections protected against excess voltage, excess cur-
rent and reverse polarity
Battery operation is possible due to low power consumption
Display and Operation:
LED-status key for digital inputs/outputs
LED-status key for malfunction and operation (ERR / RUN)
LC-display (2 x16 characters) and push-/turn knob for opera-
tion
Measured Value Processing:
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

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Configuration:
Configurable with PC-software under
WINDOWS™ 98/ME/NT/2000/XP
Menu-guided sensor selection in plain text
Free configuration of up to 32 channels
Data base for the most common sensors
Definition of user-specific sensors
Setting of type and principle of measurement
Display of pin assignment
Input of linearization
Alarm settings
Programmable error handling
Arithmetic combination of sensor channels
Configurable measuring rate and averaging interval
Configuration on file (offline-operation)
Configuration via bus (online-operation)
Programming:
Loading of a new download program
Allocation of address and baud rate via bus
Password to save the configuration and the data memory
Synchronizing of date and time with the host PC
Communication:
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

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Shell:
Compact structural shape
Attractive design
Fast mounting
Snap-on mounting on DIN rail 35 mm / 1.4 inch
Protection IP20
Plug-in screwed terminals
Module jack, ground connection
Innovations from software version 3.00:
Extendable to 32 channels
Resistance measurement in 2-, 3- and 4 wire mode
Measurement of thermocouples
Master function for data exchange with other modules on the
same bus
Use of SRAM cards for memory expansion
Baud rate up to 38,400 bps
2 versions:
Standard version with 20 MHz processor clock
Low power version with 5 MHz processor clock
Additional communication commands for memory manage-
ment and password protection
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