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3�4�- CONNECTION DIAGRAM

3�4�1�- RS-485 CONNECTION

Use an intelligent RS-232 to RS-485 network protocol converter to establish the communications with

the master device (

B(-)

A(+)

A(+)

B(-)

Alimentación

Power Supply

ReadWatt

RS-232 / USB / Ethernet / Profibus ...

PC

RS-485

RS-485

RS-232

USB

Ethernet

Profibus

...

Figure 6: RS-485 Connection diagram�

11

Instruction Manual

ReadWatt

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Содержание ReadWatt

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

Страница 2: ...2 ReadWatt Instruction Manual...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

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

Страница 22: ...22 ReadWatt Instruction Manual...

Страница 23: ...23 Instruction Manual ReadWatt...

Страница 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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