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Lumel SM2 User Manual

4-channel module of analog inputs
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4-CHANNEL MODULE
OF ANALOG INPUTS
SM2 TYPE
USER'S MANUAL
1

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Summary of Contents for Lumel SM2

  • Page 1 4-CHANNEL MODULE OF ANALOG INPUTS SM2 TYPE USER’S MANUAL...

  • Page 3: Table Of Contents

    5.4. Registers only for readout ..............17 5.5. Registers for write and readout ............21 6. TECHNICAL DATA ..................33 7. BEFORE A DAMAGE WILL BE DECLARED ..........35 8. EXAMPLES OF THE SM2 MODULE PROGRAMMING ......36 9. ORDERING CODES ...................40 10. MAINTENANCE AND WARRANTY ............41...

  • Page 5: Application

    RS-485 and RS-232 output ports are galvanically 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 SM2 module there is a connecting cable, to connect with the PC computer (RS-232).

  • Page 6: Module Set

    Remarks concerning the operator safety: 1. General The SM2 module is destined to be installed in measuring systems. Non-authorized removal of the required housing, inappropriate use, incorrect installation or operation create the risk of injury to personnel or damage to...
  • Page 7 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.

  • Page 8: Installation

    4. INSTALLATION 4.1 Way of fixing The SM2 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: 100 mm. One must connect to the module, external wires with cross- section up to 2.5 mm...

  • Page 9: Way Of Fixing

    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 Fig. 3 Connection way of external signals. The connection diagram is also placed on the module housing...
  • Page 10 The polarization is optional when supplying by d.c. voltage. Measured signal 4 voltage inputs 4 current inputs 4 x 0/4... 20 mA 4 x 0...10 V Measured signal 4 resistance thermometer inputs 2 voltage inputs + 2 current inputs in 2-wire system or resistance measurement 2 x 0...10 V 2 x 0/4...
  • Page 11 Fig. 5 Connection way of RS-485 and RS-232 interfaces...

  • Page 12: Handling

    5. HANDLING After connecting external signals and switching the supply on, the SM2 module is ready to work. The lighted green diode signals the module work. The green diode (RxD) signals the module polling, however the yellow diode (TxD) signals the module response.

  • Page 13: Description Of The Modbus Protocol Function

    (transmission to many devices) Only one module can be connected to the master’s RS-232. 5.2. Description of the MODBUS protocol function Following functions of the MODBUS protocol have been implemented in the SM2 module Opis funkcji Code Signification...
  • Page 14 Answer: Check- Device Number Value from the register Value from the register Function address of bytes 1DBD (7613) 1DBE (7614) 42 8B Write of values in the register (code 06h) The function is accessible in the broadcast mode. Example: Write the register with 1DBDh (7613) address Demand: Register address Checksum...
  • Page 15 Report identifying the device (code 11h) Demand: Device Checksum Function address (CRC) Answer: Field depending on Device Number Device Device Check- Function the device type address of bytes identifier state XXXXXX Device address - depends on the set value Function - function number: 0x11 Number of bytes - 0x08...

  • Page 16: Map Of Registers

    For the SM2 module the answer frame has the following shape: Field depending on Device Number Device Device Check- Function the device type address of bytes identifier state 01 01 3F 80 00 00 C3 60 It is the SM2 module: - with two OC type outputs - with four 0/4...20 mA current inputs...

  • Page 17: Registers Only For Readout

    7500 Identifier Constant identifying the device Value 0x89 - - h SM2 identifier 0x - - 00h Four 0...10 V voltage inputs 0x - - 01h Four 0/4...20 mA currents 0x - - 02h Two 0...10 V voltage input Two 0/4...20 mA current input...
  • Page 18 Description of the Status1 register bits Bit-15...12 Empty Bit value is always equal 0 Bit-11 Signalling of the lower range exceeding of input 4 0 - normal work 1 - range exceeding Bit-10 Signalling of the upper range exceeding of input 4 0 - normal work 1 - range exceeding Bit-9 Signalling of the lower range exceeding of input 3...
  • Page 19 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 Bit-3 Individual characteristic of the input 4 0 - individual characteristic switched on 1 - individual characteristic switched off Bit-2 Individual characteristic of the input 3...
  • Page 20 Bit-13 Output 1 state of OC type 0 - OC switched off 1 - OC switched on Bit-12 State of measuring input 4 0 - input switched off (lack of measurement) 1 - input switched on Bit-11 State of measuring input 3 0 - input switched off (lack of measurement) 1 - input switched on Bit-10 State of measuring input 2...

  • Page 21: Registers For Write And Readout

    7600 Device identifier Identifier Value 0x89 - - h SM2 Identifier 0x - - 00h Four 0...10 V voltage inputs 0x - - 01h Four 0/4...20 mA current inputs 0x - - 02h Two 0...10 V voltage input Two 0/4...20 mA current input...
  • Page 22 In case of the input off the value 0 is returned 7212 7606 W1 type 0... 1 Input 1 type Range 0...10 V for SM2-00XXX execution 0...10 V for SM2-02XXX execution 0/4...20 mA for SM2-01XXX execution 0... 1 0 - Pt100 1 - Resistance < 400 Notice!
  • Page 23 7218 7609 X1 W1 -99999...99999 Parameters of the individual characte- ristic of input 1 On the base of given co-ordinates of two 7220 7610 Y1 W1 -99999...99999 points by the user the module determines 7222 7611 X2 W1 -99999...99999 (from the system of equations) coefficients a 7224 7612 Y2 W1...
  • Page 24 7244 7622 W3 type 0... 1 Input 3 type Range 0...10 V for SM2-00XXX execution 0/4...20 mA for SM2-01XXX execution, for SM2-02XXX execution 0... 1 0 - Pt100 1 - Resistance < 400 Notice! The range change of this parameter depends...
  • Page 25 7260 7630 W4 type 0... 1 Input 4 type Range of changes as for W1 type 7262 7631 Cnt W4 0... 6500 Czas uœredniania pomiaru wejœcia 4 Zakres zmian jak dla Cnt W1 7264 7632 Ind W4 0... 1 Individual characteristic of the input 4 Value Parameters of the individual characte- 7266...
  • Page 26 7282 7641 Operator1 0... 3 Operators of the mathematical function 7284 7642 Operator2 0... 3 Value Addition „+” 7286 7643 Operator3 0... 3 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.
  • Page 27 7292 7646 OC1 type 0... 4 Output 1 type of OC type Value Normal Schwitched on Schwitched off Manually schwitched on Manually schwitched off The graphical imaging of the OC type out- put operation is presented on the fig. 7. 7294 7647 Prl OC1...
  • Page 28 Prl OC2 7304 7652 -99999...99999 Lower threshold of output 2 OC type operation 7306 7653 Prh OC2 -99999...99999 Upper threshold of output 2 OC type operation The operation delay of the output 2 of OC type in seconds. 7308 7654 Dly OC2 0...
  • Page 29 Resistance value of wires connecting the 7336 7668 0... 40 Comp W3 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 7338 7669 0...
  • Page 30 a) nor (PrH OC > PrL OC) b) nor (PrH OC < PrL OC) c) OFF d) On Fig. 7. Types of OC1 and OC2 output...
  • Page 31 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 sen- sor 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, - short-circuit the ends of wires which the sensor is fixed to,...
  • Page 32 Manufacturer’ parameters of the SM2 module Table 2 Symbol Manufacturer’s value Input 1,2,3,4 1 (switched on) Cnt W1, Cnt W2, Cnt W3, Cnt W4 1 (1 s) Ind W1, Ind W2, Ind W3, Ind W4 0 (switched off) X1 W1, X1 W2, X1 W3, X1 W4...

  • Page 33: Technical Data

    6. TECHNICAL DATA INPUTS: Depending on the execution code for individual channels: - voltage measurement 0...10 V input resistance > 1 M - current measurement 0...20 mA input resistance < 10 - resistance measurement 0... 400 - Pt100 (- 200... + 850) C Current flowing through the Pt 100 sensor: <...
  • Page 34 Rated operation conditions: - supply voltage depending on the execution code 85... 253 V a.c./d.c. 20... 50 V a.c./d.c. - supply voltage frequency 40... 440 Hz - ambient temperature -10...23...55 C - storage temperature -25...+85 C - relative humidity < 95% (condensation inadmissible) - preheating time 10 min Sustained overload:...

  • Page 35: Before A Damage Will Be Declared

    Check the correctness of the input signal connec- IE20 value is min or tion. The IE20 value is set when the measured sig- max (e.g. in Lumel nal is beyond the measuring range. The recorded Energy „***” ) IE20 value in max and min registers remains till the time of its erasing by the user.

  • Page 36: Examples Of The Sm2 Module Programming

    8. EXAMPLES OF SM2 MODULE PROGRAMMING Example 1: Switching appropriate measuring inputs and averaging time Module operation with two inputs ( e.g. 1 and 3). The first input has to average with a 100 ms time (0.1s) and the third input with a 10 min time (600 s)
  • Page 37 One must program the parameter: Ind W1 = 1 X1 W1 = 4 Y1 W1 = 0 X2 W1 = 20 Y2 W1 = 1200 Ind W2 = 1 X1 W2 = 0 Y1 W2 = 0 X2 W2 = 10 Y2 W2 = 400 one must carry out the following equation: S = U .
  • Page 38 Ind W2 = 1 X1 W2 = 0 Y1 W2 = 0 X2 W2 = 10 Y2 W2 = 400 Ind W3 = 1 X1 W3 = 4 Y1 W3 = 0 X2 W3 = 20 Y2 W3 = 2000 One must carry out the following formula: And program as follows: A = 10 (squared result from the output 2)
  • Page 39 multiplication and division are carried out, and next, the subtraction and addition. Since the weight of multiplication and division are the same, the first operation in the formula is carried out. For this reason, the given formula above must be written as: cos = P/U/I and not as P/U *I.

  • Page 40: Ordering Codes

    ** Code numbers must be agreed with the manufacturer. EXAMPLE OF ORDER When ordering, please respect successive code numbers. Code: SM2 01 1 0 means: - 2-channel module of analog inputs, 01 - module with 4 current inputs 0/4...20 mA, 1 - supply voltage: 85...

  • Page 41: Maintenance And Warranty

    10. MAINTENANCE AND WARRANTY The SM2 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.
  • Page 44 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 Lubuskie Zak³ady Aparatów Elektrycznych LUMEL S.A. ul. Sulechowska 1, 65-022 Zielona Góra, Poland Tel.: (48-68) 3295 100 (exchange) Fax: (48-68) 3295 101 e-mail:lumel@lumel.com.pl...

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