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BLUE JAY BJ194L-ASY User Manual Download Page 31

          

          

  Product Manual

Tel: +0086-023-86850812                                          

Email:[email protected]

 

Fax:+0086-023-67636974                                             

 

Add: Building 13, 2-8, Jialing third village Pioneer Park, Jiangbei District, Chongqing

   

   

           

- 30 -

 

9.2. - MODBUS © protocol

 

 

Modbus RTU Frame Format:

 

 

Address code

 

1 BYTE

 

Slave device address 

1-247

 

Function code

 

1 BYTE

 

Indicates the function codes 
like read coils / inputs

 

Data code

 

N BYTE

 

Starting address, high byte

 

Starting address, low byte

 

Number of registers, high byte

 

Number of registers, low byte

 

Error Check code

 

2 BYTE

 

Cyclical Redundancy Check ( 

CRC )

 

 
 
 

MODBUS FUNCTIONS

 

 

Code:

 

Meaning:

 

Description:

 

FUNCTION 03/04

 

 

Reading of n Words 

 

This function permits to read all 
the electrical parameters of the 
BJ194…series. 

 

FUNCTION 08

 

Clear energy counters

 

Cleared energy data by the PC

 

(*User also can clear energy 
counter on meter operation, 
refer the 

User Manual

 related 

section)

 

FUNCTION 16

 

Preset Multiple Registers

 

Write value in to the relevant 
register

 

 
 
 
 

Summary of Contents for BJ194L-ASY

Page 1: ...l Tel 0086 023 86850812 Email tech cqbluejay com Fax 0086 023 67636974 Add Building 13 2 8 Jialing third village Pioneer Park Jiangbei District Chongqing BJ194L ASY Mini Multi function Meter User Manual Version 3 0 ...

Page 2: ...ies mini multi function meter and help to solve the various problems at the scene 1 Before the meter turning on the power supply be sure that the power supply within the provisions of the instrument 2 When installation the current input terminal must non open voltage input terminals must Non short circuit 3 Communication terminal RS232 RS485 or Ethernet is strictly prohibited to impose on high pre...

Page 3: ... 7 4 2 Connection Terminal 9 4 3 Connection Drawing 10 5 SCREEN DISPLAY 11 6 OPERATION MODE 12 7 SETUP PROCEDURE 14 7 1 Input Password 14 7 2 Input Signal Selection 14 7 3 Communication Preferences 18 7 4 Digital Output Setting 20 7 5 System Setting 24 7 6 Menu Structure 26 7 7 Display Character instructions 27 8 PULSE OUTPUT 28 9 COMMUNICATION PROTOCOL 28 9 1 Connection for the RS485 BUS 29 9 2 M...

Page 4: ...uch as ammeter voltmeter power meter power factor meter frequency meter etc with the advantages of improving system reliability making the on site wiring convenient and reduce system cost Optional digital I O port and with serial port BJ194L ASY mini multi function meter can connect with PC and use Modbus to set programming and read the data Based on this power meters you can simply set up a monit...

Page 5: ...tive energy Wh x Reactive energy Varh x Notes Phase phase voltage is Uab Ubc Uca voltage data determined by the different wiring Available x Display and communications xx Only can read in RS485 communication The 194L ASY delivers the visualization of parameters listed above by means of LCD type displays In the main display area shows 3 power parameters with other display area show the various para...

Page 6: ...C phase All Voltage Current Active Power Reactive Power Power Factor Active Energy Reactive Energy Frequency 0 5 fs 0 5 fs 0 5 fs 0 5 fs 0 5 fs 1 rd 2 rd 0 05 rd V1 A1 V2 A2 V3 A3 W var PF Wh varh Hz 3 Input Voltage Rated 400V optional 100V Current Rated 5A optional 1A Frequency 45 65Hz 4 Load Voltage 0 5VA phase rated 220V Current 0 5VA phase rated 5A 5 Overload Current 1 2 times rated continuous...

Page 7: ...ient burst immunity test IEC61000 4 4 level 3 Input 1kV Power supply 2kV Surge Shock immunity test IEC61000 4 5 level 4 common mode test voltage 4kV 8 Work environment Temperature 20 60 Humidity RH 20 95 No condensation 9 Protection Panel IP54 Case IP20 10 Storage Conditions Temperature 25 70 Humidity RH 20 95 11 Working Power AC 80 265V 45 65Hz DC 80 380V DC 20 60V Optional Maximum power consumpt...

Page 8: ...f the instrument is not used as manufacturer s specifications the protection of the instrument will be damaged When any protection failure is suspected to exist for example it presents external visible damages the instrument must be immediately powered off In this case contact a qualified service representative 4 1 Installation Mounting Instrument is to be mounted on panel cut out 66 0 8 x 66 0 8 ...

Page 9: ... and current corresponding to the same phase sequence and the same direction Otherwise the Values and symbols will be wrong Power and Energy The input network configuration of instrument depends on the CT number of the system in the condition of 2 CT select the three phase three lines two components in the condition of 3 CT select the three phase four lines three component mode Instrument connecti...

Page 10: ...1 Supply voltage input 0 V 2 Supply voltage input 220 Va c 58 RS 485 59 RS 485 60 RS 485 GND Lower connection terminal 14 13 12 11 9 8 7 6 5 4 Un Uc Ub Ua C phase Current B phase Current A phase Current 4 Current A phase S1 input 5 Current A phase S2 input 6 Current B phase S1 input 7 Current B phase S2 input 8 Current C phase S1 input 9 Current C phase S2 input 11 Voltage A phase input 12 Voltage...

Page 11: ...MPORTANT REMARK If power 0 01 is shown for any of the phases and voltage and current are not zero for this phase check out following points Assure that A B and C phases coincide in voltage and current Correct polarity Reverse the current transformer placed at this phase Note This connection drawing is for reference only the actual connecting terminal please refer to the label on the rear part ...

Page 12: ...023 86850812 Email tech cqbluejay com Fax 0086 023 67636974 Add Building 13 2 8 Jialing third village Pioneer Park Jiangbei District Chongqing 11 5 SCREEN DISPLAY Note Please see detail instructions of items at OPERATION MODE ...

Page 13: ...f each phase are now showing Pressing again the key the screen will show the following parameters successively In setting menu pressing key can move the setting cursor to left Pressing can enter the number 0 9 This key named SET key pressing it can open the programming menu and return to previous menu This key named Enter key pressing this key you can exit it with saving any modification that you ...

Page 14: ... The symbol in upper left corner of the screen mean the meter show the first quadrant data 3 Shows the total active power P total reactive power Q total power factor PF Screenshots show P 5 700kW Q 0kvar PF 1 000 4 Show grid frequency Screenshots show F 50 00Hz 5 Show positive active energy Second line show 4 high bit value and the third line show 4 low bit value 8 digital combined show the energy...

Page 15: ...equired to be entered in case that in case that the meter will work without permission At normal display mode press to enter the programming mode meter display Meter display Ask for the password Press to input the password number from 0 9 Press to move the cursor After password switch press to confirm the input If password is correct meter can enter next setting Notes the default password is 0001 ...

Page 16: ...d the meter shows like this then press enter the level 2 menu choose LINE meter shows Then press again enter the level 3 menu Use and to select the right wiring mode meter shows like this Or Note Selecting the wiring mode must match with actual wiring or the reading data will go wrong 7 2 2 Voltage measure range In level 1 menu of IN Choose item U SCL and the meter shows like this then press enter...

Page 17: ...Select 380V range means the minimum scale value is 1 9V 380 x 0 5 7 2 3 Current measure range In level 1 menu of IN Choose I SCL meter shows like this then press enter the level 3 menu user can see the current range Or 5A Maximum measured value is 5A 1A Maximum measured value is 1A Note Select a different range will affect the accuracy of measurements if the accuracy is 0 5 Select 1A range means t...

Page 18: ...t the voltage transformer primary side voltage secondary side voltage Secondary side voltage is 100V or 380V user set it at section 7 2 2 7 2 5 Current transformation ratio In level 1 menu of IN Choose the item r CT meter shows like this then press enter the level 3 menu allowing us to set the current transformer Press to input the number from 0 9 Press to move the cursor After password switch pre...

Page 19: ... address setting One or some BJ194 meter can be connected to a P C With this system we can get all the parameters in one central point of reading The BJ194 has a serial RS 485 or RS 232 type output according to the model If we connect more than one device to the same communication line RS 485 we have to assign to each of them a different code or direction from 1 to 247 since the P C needs the iden...

Page 20: ...aud rate setting In level 1 menu of bus Choose item BAUD and the meter shows like this Then press enter the level 3 menu allowing us to set the Baud rate 2400 4800 or 9600 or or 7 3 3 Choose communication format In level 1 menu of bus Choose item data and the meter shows like this Then press enter the level 3 menu allowing us to set the communication data format Factory setting n 8 1 or or ...

Page 21: ...the electrical parameter 4 Set the alarm value 5 Set the hysteresis value Note If the meter have more than one channel digital output you can set the DO 2 DO 3 as the following step please select the appropriate output settings in the level 1 menu 7 4 1 Output type In level 1 menu use and to choose item DO 1 and the meter shows like this then press enter the level 2 menu choose TYPE The meter show...

Page 22: ...0 close 0000 open CRC RS485 communication please refer to chapter 9 1 ALr Mean directly alarm mode OFF Mean the relay will not work 7 4 2 Set output delay In level 1 menu of DO 1 Choose item DELY and the meter shows like this Then press enter the level 3 menu user can set the delay value Press to input the number from 0 9 Press to move the cursor After password switch press to confirm the input va...

Page 23: ...ote There are two alarm mode indicate with XX H and XX L XX H mean the rising edge alarm XX L mean the falling edge alarm Example IA H mean when the A phase current is rising to a certain value then output alarm I3 H mean when one phase of A B C phase current is rising to a certain value then output alarm PS L mean when Three phase total power is falling to a certain value then output alarm 7 4 4 ...

Page 24: ...er unit is 0 1W Reactive power unit is 0 1VAR Power factor Is 0 001 Frequency 0 01HZ 7 4 5 Set the hysteresis value In level 1 menu of DO 1 Choose item HYS meter shows like this then press enter the level 3 menu and user can set the alarm value Press to input the number from 0 9 Press to move the cursor After password switch press to confirm the input value is 1 9999 Default 5500 Note hysteresis v...

Page 25: ...the password 7 5 1 Set the LCD backlight time In level 1 menu use and to choose item SYS meter shows like this then press enter the level 2 menu choose LCd t meter show then press again enter the level 3 menu Use and to select the value Note Minimum step is 1 minute 0005 for 5 minutes which means if not any operation in 5 minutes the backlight will turn off Set value 1000 the backlight always on S...

Page 26: ...And then press again to save the operation and exit Press without save and exit 7 5 3 Set display mode In level 1 menu of SYS Choose item dISP meter shows like this then press enter the level 3 menu user can choose the display mode or Note Man means the screen display will change by press and Auto means the screen display will change in every 10 sec 7 5 4 Change the password In level 1 menu of SYS...

Page 27: ...al network measurement Voltage Range U SCL 100V 220V 380V Select the range of measured voltage signal Current Range I SCL 5A and 1A Select the range of measured current signal Voltage transformation ratio R PT 1 9999 Setting voltage signal transformation ratio 1 2 scale Signal input IN Current transformation ratio R CT 1 9999 Setting current signal transformation ratio 1 2 scale Address ADDR 1 247...

Page 28: ...nstructions User passwords Input voltage range selection Input error Input current range selection User settings menu Set CT ratio Communication settings menu Set PT ratio Shows scal input value Select phase Set the decimal point Route 1 switch output settings Communication parameter setting Route 2 switch output settings Metter address setting System parameter settings Baud rate Choose Setted par...

Page 29: ...0mA 2 Pulse 5000 imp kWh pulse upto 80ms This means When the meter detect 1 kWh the meter output 5000 pulse Note 1 kWh energy is for secondary side energy data if there have PT and CT accessed primary side energy data is 1 kWh PT ratio CT ratio For example In measure time T the received total pulse is N Primary side input of voltage is 10Kv Primary side input of current is 400A Secondary side meas...

Page 30: ...than 0 5mm2 with a maximum distance of 1 200 m between the BJ194 and the master unit This Bus may connect a maximum of 32 BJ194 Note 1 For communication with the master unit customers can choose the RS 232 to RS 485 converter to use 2 Full range of BJ 194 meter RS485 PIN number is 58 59 60 3 Due to product modifications or custom requirements the interface pin place may be changed For details plea...

Page 31: ...tarting address high byte Starting address low byte Number of registers high byte Number of registers low byte Error Check code 2 BYTE Cyclical Redundancy Check CRC MODBUS FUNCTIONS Code Meaning Description FUNCTION 03 04 Reading of n Words This function permits to read all the electrical parameters of the BJ194 series FUNCTION 08 Clear energy counters Cleared energy data by the PC User also can c...

Page 32: ...ectric data Power register show the BCD part decimal point registers show the exponent of electric data For example A phase voltage representation The register UA 0DACH 3500 register DPT 5 UA 0 3500 10 5 35 00kV A phase current representation The register IA 0FA0H 4000 register DCT 3 IA 0 4000 10 3 400 0A Note Frequency and power factor use fixed exponent to calculation XXHz DHZ 2 0 XXX DPF 0 Note...

Page 33: ...y 24 25 26 27 14 15 WPN Negative active energy 28 29 30 31 16 17 WQP Positive reactive energy 32 33 34 35 18 19 WQN Negative reactive energy 36 37 38 39 Secondary side energy data High byte first low byte follow use 4 byte integer unit 0 1Wh Show the cumulative value of the input signal as in AC100V 5A 0 866kW run 1 hour for the 0 866kWh 20 21 EPP Positive active energy 40 41 42 43 22 23 EPN Negat...

Page 34: ... bit of register address there will be offset please add 1 for the right address To get more info please contact technical support tech cqbluejay com 9 3 4 Other data Address Data Instruction Byte mode Note DI Digital input 56 Low four effective 0 for open 1 for closed 28 DO Digital output 57 Low two effective 0 for open 1 for closed 33 UAB AB line Voltage 66 67 34 UBC BC line Voltage 68 69 35 UCA...

Page 35: ...h Data number low CRC16 low CRC16 high 0CH 03H 00H 00H 00H 06H C4H D5H PC user ask upload UA UB UC IA IB IC Slave to Host answer Addr Fun Byte count Data1 high Data1 low Data2 high Data2 low Data3 high Data3 low 0CH 03H 0CH 03H E8H 03H E9H 03H E8H Data4 high Data4 low Data5 high Data5 low Data6 high Data6 low CRC16 low CRC1 6 high 13H 84H 13H 88H 13H 8AH A6H D6H Show the data UA 3E8H 100 0 UB 3E9H...

Page 36: ...llow accessing dangerous parts This instrument is factory shipped at proper operation condition 11 MAINTENANCE The 194L does not require any special maintenance No adjustment maintenance or repairing action should be done when the instrument is open and powered on should those actions are essential high qualified operators must perform them Before any adjustment replacement maintenance or repairin...

Page 37: ...the current transformer does not have to be dismantled and installed again but the transformer secondary S1 and S2 just has to be inverted b The connection of the current secondary in the current transformers have been incorrectly connected to resolve this problem just connect the S1 transformer secondary to the S1 on the meter and the S2 on the current transformer to the S2 on the meter 2 The BJ ...

Page 38: ...n 0 to 5 amps of current Ensure that the Transformer ratio has been correctly set once correctly set the current measurement shall be shown correctly see section on chapter7 For any inquiry about the instrument performance or any failure contact to Blue Jay s technical service Blue Jay After sales service Building 13 2 8 Jialing third village Pioneer Park Jiangbei District 400020 Chongqing Tel 008...

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