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User manual - METER SRT-73 

Register Write

Range

Register description

3Bh

Yes

0 ÷ 999

t on

 parameter in 

rEL2  

menu, expressed in tenth of seconds or 

tenth of minutes depend on 

unit

 parameter - register no. 3Dh)

3Ch

Yes

0 ÷ 999

toFF

 parameter in 

rEL2  

menu, expressed in tenth of seconds 

or tenth of minutes depend on 

unit

 parameter - register no. 3Dh)

3Dh

Yes

0 ÷ 1

unit

 parameter in 

rEL2  

menu:

0

 - seconds; 

1

 - minutes

3Eh

Yes

0 ÷ 2

AL

 parameter in 

rEL2  

menu: 

0

 - no changes; 

1

 - on; 

2

 - off

3Fh

Yes

-999 ÷ 9999 

SEt2

 parameter in  

rEL2

 menu, no decimal point included

50h

Yes

0 ÷ 1

modE

 parameter in 

HOLd

 menu (type of detected changes):

0

 - peaks; 

1

 - drops

51h

Yes

0 ÷ 9999

PEA

 parameter in 

HOLd

 menu (minimum detectable change, no 

decimal point included)

52h

Yes

0 ÷ 199

timE

 parameter in 

HOLd

 menu, 

maximum peaks' (or drops') 

display time expressed in seconds

53h

Yes

0 ÷ 1

HdiS

 parameter in 

HOLd

 menu:

0

 - 

rEAL

 mode ; 

1

 - 

HOLd

 mode

54h

Yes

0 ÷ 1

H r1

 parameter in 

HOLd

 menu

 :

0

 - 

rEAL

 mode ; 

1

 - 

HOLd

 mode

55h

Yes

0 ÷ 1

H r2

 parameter in 

HOLd

 menu:

0

 - 

rEAL

 mode ; 

1

 - 

HOLd

 mode

60h

Yes

see descr.

Parameters of 

CoL

 menu (binary format, 0 - 

oFF

, 1 - 

on

):

bit 7

 - 

C AL

 parameter;

bit 6

 - 

C Pr

 parameter;

bit 1

 - 

C r2

 parameter;

bit 0

 - 

C r1

 parameter.

61h

Yes

0 ÷ 1

CrES

 parameter in 

CoL

 menu (reset of colour indication

):

0

 - 

oFF

1

 - 

on

62h

Yes

0 ÷ 1

dir

 parameter in 

CoL

 menu (direction of value changes):

0

 - 

morE

1

 - 

LESS

63h

Yes

-999 ÷ 9999 

SEtP

 parameter in 

CoL

 menu, no decimal point included

64h

Yes

-999 ÷ 999

HySt

 parameter in  

CoL

 menu, no decimal point 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. 

- the value of the 

mbAc

 parameter is also connected to write to this register, so it is possible to block a writes, but  

impossible to unblock writes via RS-485 interface, The unblocking of the writes is possible from menu level only.

32

Summary of Contents for SRT-73

Page 1: ...06 SRT 73_INSSXEN_v 2 09 001 Microlectra bv Microlectra bv Hermanus Boerhaavestraat 6 3261 ME Oud Beijerland Netherlands Tel 31 0 186 616290 Fax 31 0 186 610349 www microlectra nl info microlectra nl...

Page 2: ...ROGRAMMING 19 7 1 PROGRAMMING MENU 19 7 2 PARAMETERS EDITION 20 7 2 1 Numeric parameters digit change mode 20 7 2 2 Numeric parameters slide change mode 20 7 2 3 Switch parameters LIST type 20 7 3 MEN...

Page 3: ...ty and EMC regulations 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...

Page 4: ...or two relay or OC type outputs Device SRT 73 is equipped with RS 485 Modbus RTU communication interface and sensor supply output The meter can be ordered in two power supply versions SRT 73 can be us...

Page 5: ...Operating temperature depending on version 0 C to 50 C or 20 C to 50 C Storage temperature depending on version 10 C to 70 C or 20 C to 70 C Humidity Altitude 5 to 90 no condensation up to 2000 meters...

Page 6: ...orted to the carrier Also write down the unit serial number located on the housing and report the damage to the manufacturer Attached with the unit please find user s manual warranty assembly brackets...

Page 7: ...4 1 Mounting hole dimensions a recommended b allowable Figure 4 2 Installing of brackets and dimensions of connectors 7 66 5 mm 8 mm 8 mm 8 mm 8 mm 1 mm max 5 mm 32 5 mm 1 mm 68 mm max 5 mm 32 5 mm 9...

Page 8: ...e 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 destruction with an electrical installation fuse Wiring must me...

Page 9: ...tems 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 of the screened cable In the case of magnetically induced...

Page 10: ...OC2 Umax 30V DC Imax 30mA Pmax 100mW OC1 optional OC2 optional Power supply depending on version n c Pt100 500 1000 Pt100 500 1000 7 8 9 1 2 10 6 7 8 9 18 19 20 13 14 R1 optional 3 4 R2 optional 17 1...

Page 11: ...s motors etc it is required to use additional suppression circuit typically capacitor 47nF min 250VAC in series with 100R 5W resistor connected in parallel to relay terminals or better directly on the...

Page 12: ...not recommended When 4 wires or 2 wires connection is used the resistance of particular wires Ra Rd CAN BE DIFFERENT When 3 wires connection is used the resistance of particular wires Ra Rd MUST BE I...

Page 13: ...marked with this symbol should not be placed in municipal waste Please check local regulations for disposal of electronic products 5 FRONT PANEL DESCRIPTION Symbols and functions of push buttons Symb...

Page 14: ...nged by entering the menu see DEVICE PROGRAMMING Use the local keyboard or the remote controller to do it Note all parameters can be remote changed via RS 485 interface Configuration of the device via...

Page 15: ...parameters SEtP SEt2 HYSt modE t on toFF unit and AL Depend on modE parameter relays can be not used or controlled over one or two thresholds values If one threshold is used Figure 6 2 the relay can...

Page 16: ...s state changes moments for t on 0 toFF 0 tA tB tC tD time periods while input signal is in zone A or zone B Figure 6 4 Principle of LED relay output operation for one threshold mode 16 SEtP parameter...

Page 17: ...least t on see points BON DON Figure 6 4 a d e Similarly the relay will be turned off if time toFF elapse since the input signal value exceeds any of the border values see points BOFF DOFF Figure 6 4...

Page 18: ...process the relay output changes his state depends of both SEtP and SEt2 thresholds in similar way as it was described in one threshold mode If two threshold mode is used modE parameter defines state...

Page 19: ...th parameter name by few seconds Confirmed changes may be checked or user can switch viewed parameter pressing or v button 7 1 PROGRAMMING MENU To enter main menu being in the measurement mode operato...

Page 20: ...d hold button only the increasing became quickest as long as button is pressed To slow down the increasing button v can be used If v is pressed shortly and button is still pressed increasing slow down...

Page 21: ...to menu 7 3 MENU DESCRIPTION password checking If some password different from 0000 is set then every enter to main menu follows the entering of password If entered password is correct then first men...

Page 22: ...turned off on one threshold mode the relay is turned ON when input signal exceeds SEtP HYSt value and is turned off back when the input signal became lower than SEtP HYSt oFF one threshold mode the r...

Page 23: ...reaction when some critical situations occurs noCH relay do not change his state on relay will be turned on oFF relay will be turned off If parameter modE is set to on oFF in or Out the critical situ...

Page 24: ...is green rEd main colour is red C r1 C r2 control the display colour according to relay R1 R2 separate state oFF control for particular relay is off on control for selected relay is on the display wil...

Page 25: ...gement disabled on acknowledgement enabled 7 3 5 HOLd menu This menu contains parameters connected with peak detection function See also full description of the peak detection function in paragraph DE...

Page 26: ...to frames with address 255 FFh bAud this parameter determines RS 485 interface baud rate It can be set to one of 8 possible values 1 2 2 4 4 8 9 6 19 2 38 4 57 6 115 2 which respond to the baud rates...

Page 27: ...allows to change the edition mode of numerical parameters dig the change to by digit mode Slid slide change mode 7 3 9 dEFS parameter This setting allows to restore the factory settings of the device...

Page 28: ...NU ESC ENTER rEL2 MENU ESC MENU ESC MENU ESC rEL1 Measurement mode ENTER MENU ESC MENU ESC inPt ENTER MENU ESC ENTER ENTER MENU ESC SEtP SEt2 HYSt modE t on toFF unit AL Parameter edition See next pag...

Page 29: ...Aud mbAc mbtO rESP Parameter edition ENTER MENU ESC ENTER ENTER MENU ESC Scod A r1 A r2 SEt 4 digit special password entering ENTER MENU ESC ENTER ENTER MENU ESC SCoL C r1 C r2 C AL C Pr dir SEtP HYSt...

Page 30: ...unctions can not exceeds 16 registers for single frame The device interprets the broadcast messages but then do not sends the answers 9 1 LIST OF REGISTERS Register Write Range Register description 01...

Page 31: ...est brightness 8 the highest brightness 2Eh Yes 0 1 SCoL parameter in CoL menu main colour of display 0 green 1 red 2Fh Yes 0 1 Edit parameter numerical parameters edit mode 0 dig mode 1 SLid mode 30h...

Page 32: ...rameter in HOLd menu 0 rEAL mode 1 HOLd mode 54h Yes 0 1 H r1 parameter in HOLd menu 0 rEAL mode 1 HOLd mode 55h Yes 0 1 H r2 parameter in HOLd menu 0 rEAL mode 1 HOLd mode 60h Yes see descr Parameter...

Page 33: ...mples apply for device with address 1 All values are represent hexadecimal Field description ADDR Device address on modbus network FUNC Function code REG H L Starting address address of first register...

Page 34: ...Change of the device address from 1 to 2 write to reg 20h ADDR FUNC REG H L DATA H L CRC L H 01 06 00 20 00 02 09 C1 DATA H 0 DATA L new device address 2 The answer the same as the message ADDR FUNC...

Page 35: ...H1 L1 DATA H2 L2 DATA H3 L3 CRC L H 01 03 06 00 0A 00 00 00 01 78 B4 DATA H1 L1 reg 01h 10 displayed value 1 0 DATA H2 L2 reg 02h 0 no errors DATA H3 L3 reg 03h 1 decimal point position 0 0 There is...

Page 36: ...R2 0 0 22 modE Operation mode of relay R2 on 22 t on Turn on delay of relay R2 0 0 23 toFF Turn off delay of relay R2 0 0 23 unit Unit of t on toFF parameters of relay R2 SEC 23 AL Reaction for criti...

Page 37: ...r1 Source of relay R1 and LED R1 control rEAL 25 H r2 Source of relay R2 and LED R2 control rEAL 25 Settings of access to the configuration parameters SECu menu A r1 Permission to changes of relay R1...

Page 38: ...User manual METER SRT 73 38...

Page 39: ...User manual METER SRT 73 39...

Page 40: ...lectra bv Hermanus Boerhaavestraat 6 3261 ME Oud Beijerland Netherlands Tel 31 0 186 616290 Fax 31 0 186 610349 www microlectra nl info microlectra nl www microlectra nl Microlectra bv info microlectr...

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