Simex SRP-N118 User Manual Download Page 1

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Assisting the automation

industry since 1986

User manual

METER

SRP-N118

•

Firmware: up to v. 5.22

•

Input type: 0/4-20 mA, 0/1-5V, 0/2-10V

•

Wall mounting case IP 65

Read the user's manual carefully before starting to use the unit or software.

Producer reserves the right to implement changes without prior notice.

2013.08.14

SRP-N118_INSSXEN_v.2.08.002

Summary of Contents for SRP-N118

Page 1: ...8 Firmware up to v 5 22 Input type 0 4 20 mA 0 1 5V 0 2 10V Wall mounting case IP 65 Read the user s manual carefully before starting to use the unit or software Producer reserves the right to impleme...

Page 2: ...parameters LIST type 22 7 3 MENU DESCRIPTION 22 7 3 1 rEL1 menu 22 7 3 2 inPt menu 25 7 3 3 bri parameter 30 7 3 4 HOLd menu 30 7 3 5 SECu menu 30 7 3 6 rS menu 31 7 3 7 Edit parameter 32 7 3 8 dEFS...

Page 3: ...ons GND input of device should be connected to PE wire The unit must be properly set up according to the application Incorrect configuration can cause defective operation which can lead to unit damage...

Page 4: ...D display Displayed values range can be selected by user from 999 to 9999 plus decimal point The device can be equipped with two relay or OC type outputs Device SRP N118 is equipped with RS 485 Modbus...

Page 5: ...supply output Communication interface RS 485 8N1 and 8N2 Modbus RTU not separated Baud rate 1200 bit s 115200 bit s Display depending on version LED 4 digit 20mm height red or LED 4 digit 20mm height...

Page 6: ...voltage corresponds to the nominal voltage stated on the unit s identification label The load must correspond to the requirements listed in the technical data All installation works must be conducted...

Page 7: ...hase cable L The power supply network cable diameter must be selected in such a way that in the case of a short circuit of the cable from the side of the unit the cable shall be protected against dest...

Page 8: ...loads should be equipped with interference protection systems e g RC type Use of screened signal cables is recommended Signal cable screens should be connected to the earthing only at one of the ends...

Page 9: ...13 14 15 12 11 10 9 8 n c R1 R2 7 6 5 4 3 1 2 N L n c GND 0 1 5V 0 2 10V 0 4 20mA GND GND DATA DATA RS 485 optional optional 24V 3V Imax 25 mA depending on version Power supply depending on version Uo...

Page 10: ...with spark suppressors While use the relay outputs for switching of inductive loads coils contactors power relays electromagnets motors etc it is required to use additional suppression circuit typica...

Page 11: ...gnetic disturbances is lower and the life of relay contacts rises a b Figure 4 9 Examples of suppression circuit connection a to relay terminals b to the inductive load Figure 4 10 Example of OC type...

Page 12: ...nic separation of RS 485 interface is made then RS 485 interface separators must to be used certainly Figure 4 12 4 13 If RS 485 interfaces are isolated or not used then the separators are not necessa...

Page 13: ...Used symbols are described below US min minimal sensor supply voltage given in technical data of sensor Ug voltage drop on galvanic separator input constant for 4 20 mA range of current Imax 20 mA max...

Page 14: ...water with small amount of detergent or in the case of more significant contamination ethyl or isopropyl alcohol Using any other agents can cause permanent damage to the housing Product marked with th...

Page 15: ...ristic are displayed on the LED display The measurement range equal to the nominal range is called nominal measurement range and the measurement range equal to the extended nominal range is called per...

Page 16: ...e Configuration of the device via menu or RS 485 interface do not stops measures 6 2 DETECTION OF THE PEAK VALUES The SRP N118 controller is equipped with peaks detection function It can detect a peak...

Page 17: ...resholds values If one threshold is used Figure 6 4 the relay can be turned on modE on or off modE oFF when the input signal value is contained in zone A If two thresholds are used Figure 6 5 the rela...

Page 18: ...0 then the relay state will be changed as soon as input value exceeds any of the border values see points A and C Figure 6 6 a b c If values of t on or and toFF are positive then relay state will be...

Page 19: ...EOFF relays state changes moments for t on 0 toFF 0 tA tB tC tD tE time periods while input signal is in zone A or zone B Figure 6 7 Principle of LED relay output operation for two thresholds mode Fi...

Page 20: ...After pressing or v button name of the threshold e g rEL1 and his value will be displayed on the display in alternating mode If or v will be pressed in 5 sec again the next threshold will be displaye...

Page 21: ...ge of current position flashing digit or the sign Short pressing of the ENTER button causes change of the position digit Press ENTER at least 2 seconds to accept the changes after that question SEt is...

Page 22: ...on change While editing switch parameter selection of switch parameter If numerical parameter is being edited a short press of ENTER button change edited position A long press of ENTER button at lest...

Page 23: ...s of the relay is equal to 2x HYSt parameter The relay state can change when an input signal is out of threshold hysteresis to threshold hysteresis zone Presented parameters should be set to ensure th...

Page 24: ...r If time when the input signal exceeds some border value is shorter than t on or toFF time the relay do not change his state see paragraph CONTROL OF THE RELAY OUTPUTS unit unit of time for t on i to...

Page 25: ...h in InPt menu see below for details of the parameters If user defined characteristic is selected and if number of defined points is lower than 2 then warning Errc is displayed in measurement mode The...

Page 26: ...of the middle part of a tank this parameter has the fixed precision 2 decimal point t Sn t Sh parameters defining the length and position of the sensor used to measure level of liquids gases or solids...

Page 27: ...u can move to the right position of the decimal point if it is still possible see parameter Menu inPt Pnt If in the volume characteristics of a cylindrical tank is exceeded the value of the volume of...

Page 28: ...dify any defined point use EdtP option To distinguish X and Y coordinates if X coordinate is displayed an additional decimal point on utmost right position is displayed If user defined characteristic...

Page 29: ...by Lo r and Hi r Lo or Hi warning is displayed depend on input signal value Figure 7 3 Example of definition of permissible range of input signal Lo r and Hi r parameters 4 20 mode The Lo r parameter...

Page 30: ...as peak or drop see Figure 6 3 timE maximum time of displaying of the peak drop value can be set from 0 0 to 19 9 sec with 0 1 sec resolution If HdiS HOLD then setting parameter timE 0 0 causes holdin...

Page 31: ...ot be set via RS 485 interface The access to registers no 04h i 05h cant be denied by mbAc parameter see LIST OF REGISTERS mbtO this parameter defines maximal time sec between following frames receive...

Page 32: ...8 dEFS parameter This setting allows to restore the factory settings of the device To get the access to this option special password is required 5465 next the device displays acknowledge question SEt...

Page 33: ...SC MENU ESC rEL1 Measurement mode ENTER MENU ESC MENU ESC inPt ENTER MENU ESC ENTER ENTER MENU ESC tYPE CHAr FiLt Pnt Lo C Hi C t h1 t h2 Parameter edition t h3 t d t Sn ENTER MENU ESC ENTER ENTER MEN...

Page 34: ...Parameter edition ENTER MENU ESC ENTER ENTER MENU ESC Addr bAud mbAc mbtO rESP Parameter edition ENTER MENU ESC ENTER ENTER MENU ESC Scod A r1 A r2 See previous page ENTER MENU ESC ENTER ENTER MENU ES...

Page 35: ...and units The first step to compute the result of measure is the calculation of the normalized result it means result of 0 1 range To do it the begin of the input range 0 mA for 0 20mA range and 4mA f...

Page 36: ...er In such a case for an increasing value of input current the displayed value decreases Figure 10 1 Normal Lo C Hi C and inverted Lo C Hi C characteristic 10 1 2 Square characteristic The normalized...

Page 37: ...the normalized result In the device computes specific segment e g for characteristic from figure below and In 0 65 the segment between points X 50 0 and X 70 0 will be chosen Let s mark those points a...

Page 38: ...ut value equal 1 displays value t Sh t Sn Figure 10 5 The linear scaling can be expressed as follow h In t Sh t Sn where h is level of liquids gases or solids in the tank see Figure 7 1 7 2 Figure 10...

Page 39: ...0 0 then permissible input currents range will be equal 3 2 mA 22 mA Lower border of the range is the result of calculations 4 mA 4 mA 20 and the higher 20 mA 20 mA 10 Example 2 The normalized In resu...

Page 40: ...fferent input currents from example 2 a Iin 10 mA and In 0 375 Accordingly to expression on page 36 for square characteristic 0 375 2 1200 300 211 and next the Lo C value is added to the result so the...

Page 41: ...and Ip 0 3 the displayed value W In I p Y PH Y PL X PH X PL 100 Y PL 0 375 0 3 80 30 40 30 100 30 67 b Iin 2 5 mA and In 0 0938 because of the normalized In value is lower than 0 the segment defined b...

Page 42: ...of the cylinder located in horizontal position The tank has dimension height in first part is 2m height in second part is 8 05m diameter 3 26m and length of the sensor 10m The output of signal of the...

Page 43: ...compatible The device parameters and display value are available via RS 485 interface as HOLDING type registers numeric values are given in U2 code of Modbus RTU protocol The registers or groups of th...

Page 44: ...stics of a cylindrical tank in the vertical position 5 volume characteristics of a cylindrical tank in the horizontal position 12h Yes 0 5 FiLt parameter in InPt menu measurement filtering rate 13h Ye...

Page 45: ...oFF mode 3 in mode 4 out mode 5 modb mode 33h Yes 0 999 t on parameter in rEL1 menu expressed in tenth of seconds or tenth of minutes depend on unit parameter register no 35h 34h Yes 0 999 toFF param...

Page 46: ...included 2 after writing to register no 20h the device responds with an old address in the message 3 after writing to register no 22h the device responds with the new baud rate 4 the value of the mbAc...

Page 47: ...ad of the displayed value measurement SRP N118 device address 01h ADDR FUNC REG H L COUNT H L CRC L H 01 03 00 01 00 01 D5 CA a The answer we assume that the measure result is not out of range ADDR FU...

Page 48: ...ew baud rate 19200 baud Device do not reply to BROADCAST type messages 5 Read of the registers 1 2 and 3 in one message example of reading a number of registries in one frame ADDR FUNC REG H L COUNT H...

Page 49: ...E Operation mode of relay R2 on 23 t on Turn on delay of relay R2 0 0 24 toFF Turn off delay of relay R2 0 0 24 unit Unit of t on toFF parameters of relay R2 SEC 24 AL Reaction for critical situation...

Page 50: ...rEAL 30 H r2 Source of relay R2 and LED R2 control rEAL 30 Settings of access to the configuration parameters SECu menu A r1 Permission to changes of relay R1 threshold without of the user password k...

Page 51: ...User manual METER SRP N118 51...

Page 52: ...SIMEX Sp z o o ul Wielopole 7 80 556 Gda sk Poland tel 48 58 762 07 77 fax 48 58 762 07 70 http www simex pl e mail info simex pl...

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