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2-channel module of analog inputs sm1 type user`s manual

1. Do not bend any components and do not change any insulation distances Do not touch any electronic components and contacts Modules may contain electrostatically sensitive components which can easily be damaged by inappropriate handling Do not damage or destroy any electrical components since this might endanger your health Electrical connection Before switching the module on one must check the correctness of connection to the network In case of the protection terminal connection with a separate lead one must remember to connect it before the connection of the module to the mains When working on live modules the applicable national regulations for the prevention of accidents must be observed The electrical installation must be carried out according to the appropriate regulations cable cross sections fuses PE connection Additional information can be obtained from the user s manual Apply a two wire cable for the connection to the network acc to the EN 61010 1 standard Do not connect the module to the network through an autotransformer In the building installation a cut out or a circuit breaker should exist situated near the device and easy accessible to the operator It should be marked as the element switching the device out The documentation contains information about installation in compliance with EMC shielding grounding filters and cables These notes must be observed for all CE marked products e T
2. Function Register address Hi Lo Value for the register 1DBD 7613 40 CRC Checksum 01 Answer Device address 06 Function 1D BD Register address Hi Lo Value from the register 1DBD 7613 00 85 AD CRC Checksum 01 06 1D BD Writing in n registers code 10h The function is accessible in broadcast mode Example Write of two registers beginning from the register with 1DBDh 7613 Demand Device address Function address Register address Hi Lo Number of registers Hi Lo Number of bytes Value for the register 1DBD 7613 00 1DBE 7614 85 AD Value for the register Checksum CRC 01 Answer Device address Function 08 Register address Number of registers Checksum Hi Lo Hi Lo CRC 01 14 10 1D BD 00 02 D7 80 03 09 Report identifying the device code 11h Demand Device address Function Checksum CRC 01 11 Answer Device addres Function CO 2C Device identifier Field depending on the device type 01 11 Device address Function Number of bytes Device identifier Device state Field depended of the device Output of OC type Type of input Number of the software version Checksum Example 88 XXXXXX depends on the set value function
3. set automatically following transmission parameters Baud rate 9600 bps Working mode RTU 8N1 Address 1 Notice Each module connected to the communication network must e have a unique address different from addresses of other devices connected to the network e identical baud rate and information unit type e the message sent with the address is identified as the data transmission mode transmission to many devices 5 2 Description of the MODBUS protocol function Following functions of the MODBUS protocol have been implemented in the SM1 module Opis funkcji Signification 03 03 h Readout of n register 06 h Write of a single register 06 16 10 h Write of n registers 17 11 h Slave device identification Readout of n registers code 03h The function is not accessible in the broadcast mode Example Readout of 2 registers beginning by the register with the 1DBDh address 7613 RTU mode Demand Device Register address Number of registers Checksum Function CRC address Hi Lo Hi Lo 01 08 1D BD 00 02 52 43 13 Answer Device address Function Number of bytes Value from the register 1DBD 7613 Value from the register 1DBE 7614 01 03 08 Writing of values in the register code 06h The function is accessible in the broadcast mode Example Write the register with 1DBDh 7613 address RTU mode Demand Device address
4. the fixing way are presented on the fig 2 ps 28 2 E 100 _ Fig 2 Overall dimensions and way of fixing the module 4 2 External connection diagrams Make the connection of input signals supply and interface acc to the fig 3 4 and 5 Supply Pus i Fig 3 Connection way of external signals The connection RS 485 Input diagram is also placed on the module housing Sana The polarization is optional when supplying by c d voltage Measured signal 2 voltage inputs 2 current inputs gt 9 o c O Input1 Input 2 2 Pt100 inputs or resistance measurement up to 400 Q Connection way _ Input 1 Input Input 1 Input 2 Fig 4 Connection way of input signals Taking in consideration electromagnetic interference one must use shielded wires to connect input signals and output signals The supply must be connected by a two wire cable with the appropriate wire diameter ensuring its protection by means of a safety fuse 10 PC computer Converter RS 232 RS 485 L PC computer with RS 485 card SM1 Module Fig 5 Connection way of RS 485 and RS 232 interfaces 11 5 HANDLING After connecting external signals and sw
5. 500 7600 float 32 bit The value is placed in the 32 bit register The register is for readout only 7600 7700 float 32 bit The value is placed in the 32 bit register Registers can be read out and written 16 5 4 Registers only for read out Quantity name The value is located in two successive 16 bite registers These registers include the same data as 32 bite registers from the area 7500 The value is placed into Write w Readout r 32 bite registers Identifier Constant identifying the device SM1 identifier Two 0 10 V voltage inputs Two 0 4 20 mA current inputs One 0 10 V voltage input One 0 4 20 mA current input 2 Pt100 inpus or 2 resistance inputs up to 400 Q Status 1 Status 1 is the register describing the present module state Status 2 Status 2 is the register describing the present module state W1 r Measured value on the input 1 W2 r Measured value on the input 2 W3 not occurs WA not occurs WF Calculated value basing on the function Minimum of the measured value on the input 1 Maximum of the measured value on the input 1 Minimum of the measured value on the input 2 not occurs not occurs not occurs not occurs r Minimum of the calculated value r Maximum of the calculated value 17 Description of the Status1 register exceeding excee
6. 7236 7668 Not occurs 7238 7669 Not occurs Standard Restoration of manufacturer s parameters Value 0 lack of operation 1 Write of manufacturer s parameters Introduction of the value 1 will cause the write of manufacturer s parameters into the module acc to the table 2 Digital quantity characteristic Y2 Wi dh do Masih Y1 Wi V TEE characteristic displacement X2 Wi Measured value i 1 4 X1 Wi value in the module input of systems gt Y1 W1 digital value X2 Wi value in the module input of systems gt Y2 W1 digital value Other points of the characteristic are calculated Fig 6 Individual user s characteristic Caution In the execution for the measurement of resistance or temperature Pt100 only the two wire method is accessible The resistance of the wire connecting the sensor with the module must be introduced from the master device e g PC For this purpose we propose switch the module into the resistance measurement mode 27 short circuit the ends of wires which the sensor is fixed to read out the numeric value which represents the resistance of both wires introduce the read out value into the Comp WX X 1 2 register of the appropriate input Each input has a separate compensation register The described procedure must be carried out for switched on measuring inputs The resistance can be also m
7. LUMEL 2 CHANNEL MODULE OF ANALOG INPUTS SM1 TYPE USER S MANUAL CONTENTS T APPLICATION P 5 2 MODULE ead 6 3 BASIC REQUIREMENTS AND OPERATIONAL SAFETY 6 4 INSTALLATION 8 4 1 Way of fixXing 8 4 2 Diagrams of external connections pp 9 5 HANDLING 2 12 5 1 Description of the MODBUS protocol implementation 12 5 2 Description of the MODBUS protocol function 13 5 3 Map of registers 16 5 4 Registers only for readout Nt 17 5 5 Registers for write and readout pp 21 TECHNICAL 22 42 55 I T EXE auis 29 7 BEFORE A DAMAGE WILL BE 31 8 EXAMPLES OF THE SM1 MODULE PROGRAMMING 32 9 ORDERING CODES odia enano 34 10 MAINTENANCE WARRANTY ee 35 1 APPLICATION The SM1 2 channel module of analog inputs is destined to convert standard signals resistance or temperature signals into numerical data accessible via the RS 485 or RS 232 port by means of the MODBUS protocol The measurement is carried out independently in two channels RS 485 and RS 232 output ports are galvanicall
8. ONTROLLERS CHART AND PAPERLESS RECORDERS POWER CONTROL UNITS and INVERTERS LARGE SIZE NUMERIC and ALPHANUMERIC DISPLAYS AUTOMOTIVE DASHBOARD INDICATORS ACCESSORIES FOR MEASURING INSTRUMENTS MEASURING SYSTEMS ENERGY HEAT CONTROL CUSTOM MADE PRODUCTS WE ALSO OFFER OUR SERVICES IN THE PRODUCTION OF m ALUMINIUM ALLOY PRESSURE CASTINGS m PRECISION ENGINEERING AND THERMOPLASTICS PARTS m PRESSURE CASTING DIES AND OTHER TOOLS QUALITY PROCEDURES According to ISO 9001 and ISO 14001 international requirements All our instruments have CE mark For more information please write to or phone our Export Department LUMEL Lubuskie Zaktady Aparatow Elektrycznych LUMEL S A ul Sulechowska 1 65 022 Zielona Gora Poland Tel 48 68 3295 100 exchange Fax 48 68 3295 101 e mail lumel lumel com p l http www lumel com pl Export Department Tel 48 68 3295 302 or 304 Fax 48 68 3254 091 e mail export lumel com pl SM1 07A 02 09 2010
9. d X2 W1 measured value Y1 W1 and Y2 W1 Expected value on the digital output The graphical presentation of the individual characteristic is presented on the fig 6 At output signal recalculations at first the mo dule recalculates the value on the base of the individual characteristic and then this result is transmitted to the arithmetic function Switching ON OFF of the measuring input 2 Value 0 Measuring input switched off 1 Measuring input switched on In case of the input off the value 0 is returned Input 2 type 0 10 V for SM1 00XXX execution 0 4 20 mA for SM1 01XXX execution and SM1 02XXX 0 Pt100 1 Resistance 400 Q Notice The range change of this parameter depends on the execution code 7280 7615 23 Individual characteristic of the input 2 99999 99999 Parameters of the individual characte ristic of input 2 99999 99999 99999 99999 Not occurs 99999 99999 The range changes as for X1 W1 Y1 W1 X2 W1 Y2 W1 Not occurs Not occurs Not occurs Not occurs Not occurs Not occurs Not occurs Not occurs Not occurs Not occurs Not occurs Not occurs Not occurs Not occurs Not occurs Arguments of the mathematical function Value 0 Argument switched off Result 1 input 1 W1 24 Resul
10. ding Signalling of the upper input 1 range exceeding Signalling of the upper input 2 range Signalling of the lower input 2 range exceeding Signalling of the lower input 1 range Individual characteristic of the input 2 Individual characteristic of the input 1 x x x x xp xx px tx tx x x bits 15 14 13 12 1110 9 8 7 6 5 4 3 2 1 0 MSB LSB Bit 15 8 Not used Bit value is always equal 0 Bit 7 Signalling of the lower range exceeding of input 2 0 normal work 1 range exceeding Bit 6 Signalling of the upper range exceeding of input 2 0 normal work 1 range exceeding Bit 5 Signalling of the lower range exceeding of input 1 0 normal work 1 range exceeding Bit 4 Signalling of the upper range exceeding of input 1 0 normal work 1 range exceeding 18 Bit 3 2 Not used Bit value is always equal 0 Bit 1 Individual characteristic of the input 2 0 individual characteristic switched off 1 individual characteristic switched on Bit 0 Individual characteristic of the input 1 0 individual characteristic switched off 1 individual characteristic switched on Description of the Status 2 register State of input 2 State of input 1 Baud rate Type of inputs Working mode and information unit bits 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSB LSB Bit 15 11 Not used Bit value is always equal 0 Bit 10 State of measuring input 2 0 c
11. e CAUTION Designates a general useful note If you observe it handling of the module is made easier One must take note of this when the module is working inconsistently to the expectations Possible consequences if disregarded In the security scope the module meets the requirements of the EN 61010 1 standard Remarks concerning the operator safety N 1 General e The SM1 module is destined to be installed in measuring systems e Non authorized removal of the required housing inappropriate use incorrect installation or operation create the risk of injury to personnel or damage to equipment For more detailed information please study the user s manual All operations concerning transport installation and commissioning as well as maintenance must be carried out by qualified skilled personnel and national regulations for the prevention of accidents must be observed According to this basic safety information qualified skilled personnel are persons who are familiar with the installation assembly commissioning and operation of the product and who have qualifications necessary for their occupation 2 Transport storage Please observe the notes on transport storage and appropriate handling Observe the climatic conditions given in Technical Data 3 Installation The module must be installed according to the regulation and instructions given in this user s manual Ensure proper handling and avoid mechanical stress
12. e 0 Interface switched off ASCII 8N1 ASCII 7E1 ASCII 701 RTU 8N2 RTU 8E1 RTU 801 RTU 8N1 7206 7603 0 247 Device address Acceptation of module transmission parameter changes Value 0 Lack of reaction 1 Acceptation of changes Switching ON OFF of the measuring input 1 Value 0 Measuring input switched off 1 Measuring input switched on In case of the input off the value 0 is returned Input 1 type Cnt W1 2 0 10 V for SM1 00XXX execution 0 10 V for SM1 02XXX execution 0 4 20 mA for SM1 01XXX execution 0 Pt100 1 Resistance lt 400 Notice The range change of this parameter depends on the execution code Averaging time of the input 1 and 2 Value 0 The measurement is switched off module does not measure on this input the value 0 is returned Measuring time in seconds Individual characteristic of the input 1 ge Value 0 Schwitched off 1 Schwitched on 99999 99999 Parameters of the individual characte ristic of input 1 99999 99999 On the base of given co ordinates of two points by the user the module determines 99999 99999 from the system of equations coefficients 99999 99999 and b of the individual characteristic Y1W1 a X1W1 b Y2W1 2 1 b where X1 W1 an
13. e module at first calculates the function pro grammed by the user and then its result can be submitted to further operations described in this point In the case of the WF operator switching on the final result is situated in the WF register however the result from before this operation is not accessible 7290 __ 7645 209 7292 7646 Not occurs 7294 7647 Not occurs 7296 7648 Not occurs 7298 7649 Not occurs 7300 7650 Not occurs 7302 7651 Not occurs 7304 7652 Not occurs 7306 7653 Not occurs 7308 7654 Not occurs 7310 7312 7314 7316 7655 7656 7657 7658 Dum 7318 7659 occurs 7320 7660 Not occurs 1322 7661 Not occurs 7324 7662 occurs Del WF 0 1 Erasing of the function result minimal value 7326 7328 7330 7663 7664 7665 Del max wy r 0 1 Erasing of the function result maximal value gri 0 1 Erasing of minimal and maximal value lack of operation Caution After carrying out the erasing operation the value of this register is zero Resistance value of wires connecting the sensor with the module input 1 The register is used only in the execution for the resistance or temperature measu rement Resistance value of wires connecting the sensor with the module input 2 The register is used only in the execution for the resistance or temperature measu rement
14. ea sured by any meter maximal error 0 4 and introduced into registers In case on user s individual characteristic switched on the measured result is linearly transformed in accordance with introduced X and Y parameters Then the calculated value is found in the result register n case of mathematical operations switching on the result in the WF register is calculated in accordance with the equation introduced to the module Sequence of calculations result recalculation basing on the user s individual characteristic if it is switched on calculation of the introduced function carrying out the ope ration on the function result The module supervises currently the value of the introduced parameter In case when the introduced value is beyond the range of changes given in the table 1 the module does not make the parameter write Manufacturer parameters of the SM1 module Table 2 Symbol Manufacturer s value Input 1 2 1 switched on Cnt W1 Cnt W2 1s Ind W1 Ind W2 0 switched off X1 W1 X1 W2 Y1 W1 Y1 W2 X2 W1 X2 W2 Y2 W1 Y2W2 A B C D 0 switched off Operator 1 2 3 0 Operator WF 0 switched off Rate 2 9600 Mode 4 RTU 8N2 Address 1 26 Comp W1 Comp W2 0 6 TECHNICAL DATA INPUTS Depending on the execution code for individual channels voltage measurement 0 10 V input resistance gt 1 MQ cur
15. hannel switched off lack of measurement 1 channel switched on Bit 9 State of measuring input 1 0 channel switched off lack of measurement 1 channel switched on 19 Bit 8 6 Working mode and information unit 000 interface switched off 001 8N1 ASCII 010 7E1 ASCII 011 701 ASCII 100 8N2 RTU 101 8E1 RTU 110 801 RTU 111 8N1 RTU Bit 5 3 Baud rate 000 2400 bit s 001 4800 bit s 010 9600 bit s 011 19200 bit s 100 38400 bit s 101 57600 bit s 110 115200 bit s Bit 2 0 Type of inputs 000 2 x 0 10 V 001 2 x 0 4 20 mA 010 1 x 0 10 V 1 x 0 4 20 mA 011 2 x Pt100 resistance thermometer inputs or 2 x resistance inputs up to 400 Q 20 5 5 Registers for readout and write Table 1 Description The value is placed in two successive 16 bytes regi Write w Readout r sters These registers include The value is placed in 32 bit the same data as 32 bit regi registers sters from the area 7600 Identifier Device identifier SM1 Identifier Two 0 10 V voltage inputs Two 0 4 20 mA current inputs One 0 10 V voltage input One 0 4 20 mA current input Two Pt100 inputs or two resistance inputs up to 400 Q Baud rate of the RS 485 interface bit s Value 0 2400 4800 9600 19200 38400 57600 115200 7204 7602 Mode Kind of transmission through the RS 485 interface Valu
16. he manufacturer of the measuring system or installed devices is responsible for the compliance with the required limit values demanded by the EMC legislation 5 Operation e Measuring systems including SM1 modules must be equipped with protection devices according to the corresponding standard and regulations for prevention of accidents e After the instrument has been disconnected from the supply voltage live components and power connections must not be touched immediately because capacitors can be charged e The housing must be closed during operation e The RS 232 socket serves only to connect the device Fig 5 working with the MODBUS protocol When the module is not used place the hole plug in the RS 232 socket of the module 6 Maintenance and servicing Please observe the manufacturer s documentation Read all product specific safety and application notes in this user s manual e Before taking the module out one must turn the supply off e The removal of the module housing during the warranty contract period may cause its cancellation 4 INSTALLATION 4 1 Way of fixing The SM1 module is fixed on a 35 mm rail in accordance with EN 60715 The module housing is made of a self extinguishing plastic Overall dimensions of the housing 22 5 x 120 x 100 mm One must connect to the module external wires with cross sec tion up to 2 5 mm from the supply side and 1 5 from the input signal side Overall dimensions and
17. hort duration overload 3 s voltage input 10 Un current input 10 In Ensured protection grade acc to EN 60529 through the housing IP 40 electrical connections IP 20 Dimensions 22 5 x 120 x 100 mm Weight lt 0 3 kg Fixing on a 35 mm rail Power consumption lt 4VA Resistance against decays acc to EN 61000 6 2 Electromagnetic compatibility immunity acc to EN 61000 6 2 emission acc to EN 61000 6 4 additional error from electromagnetic hazard lt 0 2 Safety requirements acc to EN 61010 1 standard installation category Hl pollution grade 2 phase to earth working voltage supply 300 V input 50 V output 50V 30 SYMPTOMS 1 The module diode is not illuminated 7 BEFORE A FAILURE WILL BE DECLARED In case of incorrect symptoms please to acquaint with the table below PROCEDURE Check the connection of the network cable REMARKS 2 The module does not communicate with the device master via the RS 232 port Lack of transmission signalling on RxD and TxD diodes Check if the wire is connected to the appropriate module socket Check if the device master is set on 9600 baud rate 8N1 mode and address 1 RS 232 has constant trans mission para meters 3 The module does not communicate with the device master via the RS 485 port Lack of transmission signalling on RxD and TxD diodes Check if the wire is connected to the appropriate module termina
18. itching the supply on the SM1 module is ready to work The lighted green diode signals the module work The green RxD diode signals the module polling however the yellow diode TxD signals the module response Diodes should ignite in cycles during the data transmission both through the RS 232 and the RS 485 interface One can program all module parameters by means of RS 232 or RS 485 The RS 232 port has constant transmission parameters in accordance with tech nical data what enables the connection with the module even when programmed parameters of the RS 485 digital output are unknown address mode rate The RS 485 standard allows to the direct connection to 32 devices on a single serial link up to 1200 m To connect a greater number of devices it is necessary to use additional intermediate separating systems The way of the interface connection is given in the user s manual fig 5 To obtain the correct transmission it is necessary to connect A and B lines in parallel with their counterparts in other devices The connection must be carried out with a screened wire The screen must be connect to the protective terminal in a single point The GND line serves to the additional protection of the interface line at long connections One must connect it to the protective terminal it is not necessary for the correct interface work To obtain the connection with the PC computer through the RS 485 port an RS 232 RS 485 converter e g PD51
19. l Check if the device master is set on the same transmission parameters as the module baud rate mode address In case of necessity to change transmission parameters when we cannot communicate through RS 485 one can use the RS 232 port which has constant transmission parameters in case of further problems see the sec tion 2 After changing e RS 485 parameters into the required one one can switch over on RS 485 port The module returns the value 0 on the given input Check if the input which the value 0 is returned on is not switched out and if the averaging time is gt 0 1 s Check if the user s individual characteristic with zero parameters is not switched on 5 The result in WF regi ster function result is inconsistent with our expectations Check the correctness of the introduced formula Check if the operation sequence is correct The operator weight is essential at first multiplication and division are carried out and next addition and subtraction Perhaps it is sufficient to reorder results in the formula See programming examples in the section 8 In result registers the IE20 value is min or max e g in Lumel Energy Check the correctness of the input signal connec tion The IE20 value is set when the measured sig nal is beyond the measuring range The recorded IE20 value in max and min registers remains till the time of its erasing by the user The value of the measured resis
20. number 0x11 0x08 0x88 OXFF 0x00 not occurs 00 XX X X X Field depended on the module execution code 0x00 two 0 10 V voltage inputs X 00 X X KX X 0x01 two 0 4 20 mA current input2 XO1XXXX 0x02 one O 10 V voltage input one 0 4 20 mA current input2 X02 XX XX 0x03 two Pt100 inputs or two resistance inputs up to 400 Q X03 XXXX software version implemented in the module XX _4 byte variable of float 2 bytes in case of work in RTU mode 1 byte in case of work in ASCII mode Work in RTU mode e g Mode RTU 8N2 value 0x02 in case of readout write through the interface The device address is set on Adr 0x01 15 For the SM1 module the answer frame has the following shape Device Number Device Device Field depending on Function address of bytes identifier the device type 01 11 08 88 It is the SM1 module with two 0 4 20 mA current inputs software version 1 00 5 3 Register map Register map of SM1 series modules Address Value type Description range 7000 7200 float 32 bit The value is placed in two successive 16 bit registers Registers contain the same data as 32 bit registers from the area 7500 The register is for readout only 7200 7400 float 32 bit The value is placed in two successive 16 bit registers Registers contain the same data as 32 bit registers from the area 7600 Registers can be read out and written 7
21. of Lumel s production or an RS 485 interface card is indispensable The marking of transmission lines for the card in the PC computer depends on the card manufacturer To obtain the connection through the RS 232 port the wire added to the module is sufficient The connection way of both ports RS 232 and RS 485 is shown on the fig 5 The module can be connected to the device of master type only through one inter face port In case of a simultaneous connection of both ports the module will work through the RS 232 interface 5 1 Description of MODBUS protocol implementation The transmission protocol describes ways of the information exchange between devices through serial links The MODBUS protocol has been implemented in the module in accordance with the PI MBUS 300 Rev G specification of the Modicon company Set of parameters of the module serial link in the MODBUS protocol e Module address 1 247 e Baud rate 2400 4800 9600 19200 38400 57600 115200 bit s Working modes ASCII RTU LP e Information unit ASCII 8N1 7E1 701 RTU 8N2 8E1 801 8N1 Maximal response time 300 ms The parameter configuration of the serial link is described in the further part of the user s manual It consists on establishing the baud rate Rate parameter device address Adres parameter and the information unit type Mode parameter In case of the module connection with the computer through the RS 232 wire the module
22. onal combination of inputs Code numbers must be agreed with the manufacturer EXAMPLE OF ORDER When ordering please respect successive code numbers Code SM1 01 1 8 means SM1 2 channel module of analogue inputs 01 module with 2 current inputs 0 4 20 mA 1 supply voltage 85 253 V a c d c 8 without an extra quality inspection certificate 34 10 MAINTENANCE AND WARRANTY The SM1 module does not require any periodical maintenance In case of some incorrect operations 1 After the dispatch date and within the period stated in the warranty card One should return the instrument to the Manufacturer s Quality Inspection Dept If the module has been used in compliance with the instructions we warrants to repair it free of charge The disassembling of the housing causes the cancellation of the granted warranty After the warranty period One should send the instrument to repair it in an authorized service workshop Spare parts are available for the period of five years from the date of purcha Our policy is one of continuous improvement and we reserve the right to make changes in design and specifications of any products as engineering advances or necessity requires and revise the above 35 SALES PROGRAM MEASUREMENT DIGITAL and BARGRAPH PANEL METERS CONTROL MEASURING TRANSDUCERS ANALOG PANEL METERS DIN INSTRUMENTS RECORDING ANALOG and DIGITAL CLAMP ON METERS INDUSTRIAL and HOUSEHOLD C
23. parent power of the variable signal The module is working with transducers of variable signal into a standard signal e g P11Z transducer The measurement of max current 1200 A 0 gt 4 mA 1200 A gt 20 mA measurement of max voltage 400 V OV gt 0 V 400 V gt 10 V One must program the parameter e Ind W1 7 1 e X1W1 4 32 Y1W1 0 X2 W1 20 Y2 W1 1200 Ind W2 1 X1 W2 0 1 W2 0 X2 W2 10 Y2 W2 400 one must carry out the following equation S U e A 1 e B 2 e Operator 1 2 The apparent power 0 480 000 VA will be calculated in the WF register whereas the 0 1200 A current in the result register 1 and the 0 400 V voltage in the result register 2 33 9 ORDERING CODES LI ie 7 Input signal 2 voltage inputs Doge WOW 00 2 current inputs 0 4 20 01 1 voltage input 1 current input 0 10 0 4 20 mA 02 2 resistance or Pt100 inputs Pt100 or resistance 400 Q 03 Aae I E EESE XX Supply E 1 EUN UR Ap 2 Acceptance tests without a quality inspection Certificate pp 8 with a quality inspection certificate pp 7 customer 5 agreement seccccenderserasccudisseaasssdantnazaccescecsedassastestateseossanesstees X Possible opti
24. rent measurement 0 20 mA input resistance lt 10 Q resistance measurement 0 400 Q Pt100 200 850 C Current flowing through the Pt 100 sensor lt 250 uA Resistance of leads connecting the resistance thermometer with the module max 20 Pt100 characteristic acc to EN 60751 A2 OUTPUTS digital a RS 485 interface transmission protocol MODBUS ASCII 8N1 7E1 7O1 RTU 8N2 8E1 801 8N1 baud rate 2400 4800 9600 19200 38400 57600 115200 bauds b RS 232 interface transmission protocol MODBUS RTU 8N1 baud rate 9600 bauds address 1 maximal response time to the query frame 300 ms Basic error 0 2 of measuring range Additional error from ambient temperature changes 0 196 of range 10K Measurement averaging time when one input is switched on min 100 ms programmable when two inputs are switched min 200 ms programmable the sampling frequency of the input is 5 kHz Total measurement averaging time is the sum of measurement times of both inputs 29 Rated operation conditions supply voltage depending on the execution code 85 253 V acidic 20 50 V a cJd c Supply voltage frequency 40 440 Hz ambient temperature 10 23 55 storage temperature 25 85 C relative humidity lt 95 condensation inadmissible preheating time 10 min Sustained overload resistance thermometers 1 measurement of voltage current and resistance 10 S
25. t 2 input 2 W2 Root of the result 1 V W1 Root of the result 2 VW2 Result 1 squared W1 Result 2 squared W2 Operator 11 No occurs 12 No occurs Parameters of the mathematical function serves to recalculate the measured input quantity into th output quantity WF basing on the function WF A lt Operator1 gt B lt O perator2 gt C lt Operator3 gt D When recalculating the input signal the module recalculates at first the value basing on the individual characteristic and then this result is transmitted to the arythmetical function Examples of using mathematical fun ctions are presented in the section Examples of module programming Operators of the mathematical function Operator2 Operator3 WF Operator Subtraction Multiplication Division The calculation of the output value is carried out basing on the assumpted operator weight i e At first multiplication and division Operations are realised and after addition and subtraction operations and operators and 4 and operators have the same importance weight Examples of using mathe matical functions are presented in the section Examples of module programming Mathematical operations on the result of WF function Value 0 Operator switched off __ 1 Extraction of roots VWF 2 Squaring WF 3 Inverse 1 WF Th
26. tan ce or temperature is overstated Check if correct values of the wires resistance have been introduced to Comp W1 Comp W2 Comp W3 and Comp WA registers In case of necessity one must introduce this value See the user s manual under the description of the Status 2 Concerns only the module for resistance measurement or for co ope ration with a Pt100 sensor 31 8 EXAMPLES OF SM1 MODULE PROGRAMMING Example 1 Switching appropriate measuring inputs and averaging time on Module operation with input 2 The second input has to average with a 100 ms time 0 1s One must program the parameter e Input 1 0 e Input 2 1 e Cnt W1 2 0 1 The module will carry out the measurement on the input 2 In the register corre sponding to the second input the result will be refreshed every 100 ms Example 2 Programming the user s individual characteristic One must program the module in such a way that it measures the water level in a tank with characteristic 0 mA 0 m 20 mA 3 6 m in the input 1 whereas on the input 2 the temperature with characteristic 4 mA 0 C 20 mA 50 C One must program the parameter e ind W1 7 1 e X1W1 0 e Y1W1 0 e X2W1 20 e Y2W1 3 6 e ind W2 1 e X1W2 4 e Y1W2 0 e X2W2 20 e Y2W2 50 Example 3 Programming mathematical function One must program the module in such a way that it measures the current on the input 1 the voltage on the input 2 and calculate the ap
27. y insulated from input signals and the supply The module programming is possible by means of the RS 485 or RS 232 port In the set of SM1 module there is a connecting cable to connect with the PC computer RS 232 The SM1 module realises following functions e mathematical operations on channels and between measuring channels e conversion of measured or calculated quantities basing on the individual linear characteristic e storage of maximal and minimal values for both channels e programming of the measurement averaging time e servicing of RS 485 and RS 232 interfaces in MODBUS protocol both in ASCII and RTU mode Fig 1 View of the SM1 module 2 SET OF THE SM2 MODULE The set consists of SM1 module pp 1 pc users manual E 1 po Warranty card EO 1 pe plug with screw terminals 4 2 pcs hole plug of the RS 485 and RS 232 sockets 1 pc RS 232 cable to connect to the computer 1 5 m 1 pc When unpacking the module please check whether the type and execution code on the data plate correspond to the order 3 BASIC REQUIREMENTS SAFETY INFORMATION Symbols located in this service manual mean WARNING Warning of potential hazardous situations Especially important One must acquaint with this before connecting the module The non observance of notices marked by these symbols can occa sion severe injuries of the personnel and the damage of the modul

2-channel module of analog inputs sm1 type user`s manual

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