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 SAFETY PRECAUTIONS

 DISCLAIMER

CIRCUTOR, SA

 reserves the right to make modifications to the device or the unit specifications set 

out in this instruction manual without prior notice. 

CIRCUTOR, SA

 on its web site, supplies its customers with the latest versions of the device specifica-

tions and the most updated manuals.   

                              

 

 

 

    

 

 

      

                                            

                                               www.circutor.com

CIRCUTOR, 

recommends using the original cables and accessories that are supplied 

with the device.

DANGER

Warns of a risk, which could result in personal injury or material damage.

ATTENTION

Indicates that special attention should be paid to a specific point.

Follow the warnings described in this manual with the symbols shown below.

If you must handle the unit for its installation, start-up or maintenance, the following should be 

taken into consideration:

Incorrect handling or installation of the unit may result in injury to personnel as well as damage to the 

unit. In particular, handling with voltages applied may result in electric shock, which may cause death 

or serious injury to personnel. Defective installation or maintenance may also lead to the risk of fire.

Read the manual carefully prior to connecting the unit. Follow all installation and maintenance in-

structions throughout the unit’s working life. Pay special attention to the installation standards of the 

National Electrical Code.

Refer to the instruction manual before using the unit

In this manual, if the instructions marked with this symbol are not respected or carried out correctly, it can result 

in injury or damage to the unit and /or installations.

CIRCUTOR, SA

 reserves the right to modify features or the product manual without prior notification.

3

Instruction Manual

ReadWatt

Summary of Contents for ReadWatt

Page 1: ...INSTRUCTION MANUAL M018B01 03 22A Impulse sensor ReadWatt...

Page 2: ...2 ReadWatt Instruction Manual...

Page 3: ...following should be taken into consideration Incorrect handling or installation of the unit may result in injury to personnel as well as damage to the unit In particular handling with voltages applie...

Page 4: ...10 3 4 CONNECTION DIAGRAM 11 3 4 1 RS 485 CONNECTION 11 3 4 2 PULSE OUTPUT CONNECTION 12 4 OPERATION 13 4 1 IMPULSE LED 13 4 2 IMPULSE OUTPUT 13 4 3 COMMUNICATIONS 14 4 3 1 MODBUS PROTOCOL 14 4 3 2 RE...

Page 5: ...A Changes in the following sections 3 3 4 3 4 4 3 5 Note The images of the devices are solely for the purpose of illustration and may differ from the orig inal device SYMBOLS Table 2 Symbols Symbol De...

Page 6: ...onnection cable An installation guide If any problem is noticed upon reception immediately contact the transport com pany and or CIRCUTOR s after sales service 2 PRODUCT DESCRIPTION ReadWatt is an imp...

Page 7: ...urer of the device is not responsible for any damage resulting from failure by the user or installer to heed the warnings and or recommendations set out in this manual nor for damage resulting from th...

Page 8: ...stick the adhesive part of the Velcro strap to the rear of the device Figure 1 Figure 1 Stick part of the Velcro strap to the rear of the READWATT Remove the protective paper from the other part of th...

Page 9: ...ReadWatt on the energy meter s Velcro strap Figure 3 Figure 3 ReadWatt installed Finally connect the cable delivered with the device to the ReadWatt s RJ45 connector Figure 4 Cable connection 9 Instru...

Page 10: ...Rx RS 232 Blue 3 Tx RS 232 Yellow 4 A RS 485 Green 5 B RS 485 Gray 6 GND Pulse output Orange 7 Pulse output Black 8 Vdc Auxiliary power supply Red Figure 5 ReadWatt RJ45 Connector Note The device has...

Page 11: ...485 network protocol converter to establish the communications with the master device Figure 6 B A A B Alimentaci n Power Supply ReadWatt RS 232 USB Ethernet Profibus PC RS 485 RS 485 RS 232 USB Ether...

Page 12: ...3 4 2 PULSE OUTPUT CONNECTION VCC 7 6 IN 7 6 COMMON VCC R A B Figure 7 Pulse Output connection 12 ReadWatt Instruction Manual...

Page 13: ...feguards the functionality of the meter s LED This LED has the same metrological validity as the meter s LED LED Figure 8 Readwatt LED indicators During start up the LED indicates the speed of the com...

Page 14: ...ODBUS functions implemented in the device are Functions 03 and 04 Reading of registers Function 10 Writing of multiple registers 4 3 2 READ COMMANDS ReadWatt supports the integer type read functions 0...

Page 15: ...at 4 3 4 MODBUS VARIABLES Table 6 Readwatt MODBUS variables Description Address Hexadecimal Size Read Write Default value Modbus Address 0x0008 16 bits Read Write 10 Transmission speed Baudrate 0x010C...

Page 16: ...000 4 3 5 SPECIAL BROADCAST COMMAND In case the peripheral number assigned to the ReadWatt device is unknown you have the broadcast command available address 00 With this command you can change certai...

Page 17: ...ust be hexadecimal The MODBUS variables for the broadcast command are specified in Table 7 Table 7 MODBUS variables broadcast command Description Address Hexadecimal Size Read Write Serial no 0x0BB8 3...

Page 18: ...Alternating voltage 4kV RMS 50Hz during 1 minute Overimpulse 1 2 50ms 0 source impedance 6 kV at 60 and 240 with positive and negative polarization Environmental features Operating temperature 15 C 5...

Page 19: ...32 15 25 6 Figure 10 ReadWatt dimensions 19 Instruction Manual ReadWatt...

Page 20: ...improper usage of the unit Consequently this guarantee does not apply to failures occurring in the following cases Overvoltages and or electrical disturbances in the supply Water if the product does...

Page 21: ...8 CE CERTIFICATE 21 Instruction Manual ReadWatt...

Page 22: ...22 ReadWatt Instruction Manual...

Page 23: ...23 Instruction Manual ReadWatt...

Page 24: ...CIRCUTOR SA Vial Sant Jordi s n 08232 Viladecavalls Barcelona Tel 34 93 745 29 00 Fax 34 93 745 29 14 www circutor es central circutor com...

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