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2-1

Chapter 2. Wiring

2 - 1

RS-485 Connection

A sample connection is shown below.

Master station

Terminating resistor

Relay terminal block

Slave station

(this device, etc.)

Slave station

(this device, etc.)

Slave station

(this device, etc.)

Slave station

(this device, etc.)

Relay terminal block

Shielding

• Attach terminating resistors (150 Ω ±5 %, ½ W min.) to both ends of the

transmission line.

• A relay terminal block is required because this device uses a connector.

• The cable to the relay terminal block from this device must be as short as

possible.

• The frame ground must be connected to only one end of the shielded cable, not

to both ends.

Handling Precautions

•

Be sure to connect the signal ground (SG) terminals to each other. Otherwise,
communication may be unreliable.

Содержание F4Q

Страница 1: ...aintaining equipment that uses this product should first read and understand this manual This manual contains information not only for installation but also for maintenance troubleshooting etc Be sure...

Страница 2: ...t notice Considerable effort has been made to ensure that this manual is complete and accurate but if you should find an omission or error please contact us In no event is Azbil Corporation liable to...

Страница 3: ...ing this product may result in minor injury or property damage only In describing the product this manual uses the icons and notations listed below Indicates that caution is required in handling The i...

Страница 4: ...hod specified in this user s manual Otherwise there is a danger of device failure Do not allow wire clippings metal shavings water etc to enter the device There is a danger of device failure If there...

Страница 5: ...should read this manual thoroughly This manual gives an overview of the product describes installation wiring operation functions maintenance and troubleshooting and gives hardware specifications Use...

Страница 6: ...iv Modbus is a trademark and the property of Schneider Electric SE its subsidiaries and affiliated companies Copyright licenses and registered trademarks...

Страница 7: ...pter 4 CPL Communication 4 1 4 1 Communication Procedure 4 1 4 2 Message Structure 4 2 Overview of a CPL Frame 4 2 Data link layer 4 3 Application layer 4 6 4 3 Description of Commands 4 7 RS command...

Страница 8: ...ifications 5 11 Chapter 6 Communication Data 6 1 6 1 Basic Information for Handling Communication Data 6 1 Communication data types and formats 6 1 Communication data storage memory 6 1 6 2 Communicat...

Страница 9: ...a master station Station addresses are used to communicate with specific slave stations The communication program is to be developed by the user The data to be read written can be freely selected by...

Страница 10: ......

Страница 11: ...ding Shielding DB SG DA DB SG DA DB SG DA DB SG DA DB SG FG Attach terminating resistors 150 5 W min to both ends of the transmission line A relay terminal block is required because this device uses a...

Страница 12: ...log signal Common ground for analog signals 7 P GND 24 V DC power 8 P GND 24 V DC power 9 POWER 24 V 24 V DC power 10 POWER 24 V 24 V DC power 11 DO1 Digital output 1 Open drain non isolated output 12...

Страница 13: ...DF02HCLP01A 7 5 8 0 DF02HCLP10A 8 5 9 0 Hood without resin coating Lock spring Straight long DF02D020A22 11 0 12 0 Screw lock Straight long DF02D020A22 z Crimp type Compatible wire Plug Hood Clamp pl...

Страница 14: ......

Страница 15: ...PL 1 C 47 Totalized flow rate communication data format 0 First 4 digits last 4 digits 1 Upper 16 bits lower 16 bits 0 Total flow related data is read written by combining separating the upper and low...

Страница 16: ...ss and hold the key to finalize the setting The setting is saved at this time Afterward the function setting screen is shown again 7 If there is another setting to change return to step 4 If not proce...

Страница 17: ...ion message to slave stations specifying the station it wishes to communicate with 2 The slave station receives the instruction message and performs read or write processing according to the content o...

Страница 18: ...this layer The content of the layer varies according to the purpose of the message Many slave stations up to 31 units Master station Slave station Instruction message from master station Response mess...

Страница 19: ...the beginning of a message Description Always 02H If this device receives STX it interprets STX to be the first character of a new instruction message even if it occurs in the middle of a message z De...

Страница 20: ...sum Role The checksum is used to check whether the message changed due to some problem e g electrical noise during communication Description The hexadecimal codes for two characters How to create a ch...

Страница 21: ...s set to 00 STX ETX CR or LF are not in the right positions The device code is not X The calculated checksum does not match the checksum in the message The message contains invalid characters The devi...

Страница 22: ...he application layer of the instruction message is composed of the following 4 items Item Description 1 Command RS consecutive address data read command in decimal format WS consecutive address data w...

Страница 23: ...struction code RS Role This is the command for reading data in decimal format Description Two characters RS 52H 53H 2 Read start data address Role This specifies by a decimal number the first data add...

Страница 24: ...e read normally Termination code 00 normal Read data 02H 30H 31H 30H 30H 58H 30H 30H 2CH 31H 32H 33H 2CH 38H 37H 30H 03H 46H 35H 0DH 0AH STX 0 1 0 0 X 0 0 1 2 3 8 7 0 ETX F 5 CR LF Data link layer App...

Страница 25: ...ing data in ladder programs sent by PLC communications as the data is of a fixed length Read instruction code Read start data address Read count 02H 30H 31H 30H 30H 58H 52H 44H 30H 33H 45H 39H 30H 30H...

Страница 26: ...igits and the number of pieces of data to read four hexadecimal digits number of items which is specified by the instruction message However in the case of an error response read data is not included...

Страница 27: ...ink layer Application layer Data link layer Handling Precautions The data address read count value to write and data to read must conform to the following rules A decimal value with four or fewer digi...

Страница 28: ...ta records to write All numbers are in base 10 The figure above shows an example of an instruction message used to write 2 and 65 to addresses 1001 and 1002 respectively 1 Write instruction code WS Ro...

Страница 29: ...layer Data link layer 2 Error response If data was not written properly due to an error in the instruction message an error response is returned Ex Error response stands for the error termination code...

Страница 30: ...er It is not necessary to specify the number of data records to write Use capital letters in character codes for all numbers and characters in the application layer Each value is expressed as a four d...

Страница 31: ...pes 1 Normal response If data is written correctly a normal response is returned Ex A normal response like the one below is returned when all the data is correctly written Termination code 00 normal 0...

Страница 32: ...There was an error in the number of data records to access The number of data records to be read or written is not from 1 to 10 43H Error Write error Unsupported write data address out of range data...

Страница 33: ...id data Valid data End of master station transmission End of slave station transmission Response message 1 4 2 3 1 Time from completion of master station transmission to TX disabling by master station...

Страница 34: ...3 4 5 6 7 0 Space 0 P p 1 1 A Q a q 2 STX 2 B R b r 3 ETX 3 C S c s 4 4 D T d t 5 5 E U e u 6 6 F V f v 7 7 G W g w 8 8 H X h x 9 9 I Y i y A LF J Z j z B K k C L l D CR M m E N n F O _ o The shaded...

Страница 35: ...nstruction message to slave stations specifying the station it wishes to communicate with 2 The slave station receives the instruction message and performs read or write processing according to the co...

Страница 36: ...n speed without communication is prescribed to mark the start and end of command and response messages For this device the length of the silent interval is defined as follows Transmission speed Period...

Страница 37: ...alculation The 16 bit CRC check code can be calculated with the following C language function get_crc16 In the CRC in the message the lower byte precedes the upper byte This order is the opposite of t...

Страница 38: ...used for the calculation In this case the result of calculation is 47D5 For the calculation see the CRC check code calculation method described above When the calculation result 47D5 is entered into...

Страница 39: ...be written was outside the specifiable range A write command was received during zero point adjustment Handling Precautions The success of writing when an error response is returned cannot be guarante...

Страница 40: ...CRC check 2 Check code lower byte upper byte z Normal response format Frame structure Number of bytes Description Address 1 Device address Function 1 03 0x03 Data Data size 1 Number of data bytes that...

Страница 41: ...ion RTU Mode Error response Device address Function code Error termination code CRC 01H 83H 02H 51H 32H The function code when an error occurs here 83H is obtained by flipping the most significant bit...

Страница 42: ...Data 2 Data to write upper byte lower byte CRC check 2 Check code lower byte upper byte z Normal response format The format is the same as the send command Examples Sent message Write 1 0x0001 to data...

Страница 43: ...ytes to write 2 number of data records 1st data record 2 Data to write upper byte lower byte to more write data nth data record 2 Data to write upper byte lower byte CRC check 2 Check code lower byte...

Страница 44: ...Data address Number of data records CRC 01H 10H 07H D1H 00H 02H 10H 85H Error response Device address Function code Error termination code CRC 01H 90H 02H 51H 32H The function code when an error occur...

Страница 45: ...n RTU Mode Timing specifications are the same as those of CPL communications 5 4 Timing Specifications p 5 11 for details For Modbus communication pay attention to the interval between frames silent i...

Страница 46: ......

Страница 47: ...ted when it is sent or received The unit and the number of decimal places is determined for each type of data 6 2 Communication Data Table p 6 3 Bit data Data whose meaning is contained in a single bi...

Страница 48: ...199 07D1 to 0897 Data related to parameter settings 2201 to 2399 0899 to 095F Note For compatibility with the older MQV models the data addresses they use 4001 4199 4201 4399 4401 4599 4601 4799 5001...

Страница 49: ...lled depends on the model and the gas type selected The value is without a decimal point For the number of decimal places and the unit see Flow rate digits after the decimal point address 1003 and Flo...

Страница 50: ...point communication setting 5000 50 00 Add the unit 50 00 50 00 L min When writing fixed point data use the reverse procedure and write the separated values Data related to operating status Item Data...

Страница 51: ...ue is without a decimal point For the number of decimal places and the unit of data see Flow rate digits after the decimal point address 1003 and Flow rate unit address 1005 PV 0 100 FS 1207 04B7 Valv...

Страница 52: ...to 15 Undefined normally 0 2 Digital I O status bits address 1202 Bit No Item Description 0 Digital output 1 status 0 OFF 1 ON 1 Digital output 2 status 0 OFF 1 ON 2 Digital output 3 status 0 OFF 1 O...

Страница 53: ...ls of each status Data related to the instantaneous flow rate setpoint Item Data range unit Data address Decimal hexadecimal R W Notes Flow rate setpoint SP 0 0 to 100 FS 2 1401 0579 The value is with...

Страница 54: ...be updated between the frames so an unintended value may be written depending on the timing Write data consecutively to keep them in one frame whenever possible z Example of total flow volume related...

Страница 55: ...er than flow rate SP and RUN are key locked 2 All settings are key locked 2001 07D1 C 02 Operational mode selection when power turned ON 0 Control mode 1 Mode before power shutdown 2 Fully closed mode...

Страница 56: ...en operating mode control 5 ON when operating mode fully open 6 ON when operating mode control or fully open 7 ON when operating mode fully closed 8 ON when error occurs 9 ON when error or alarm occur...

Страница 57: ...es not increase 4 The analog setting is valid when the input is ON and the C 03 setting is valid when the input is OFF 5 6 8 If there is a conflict of forced full close and forced full open at two con...

Страница 58: ...propane 7 100 methane 8 100 butane 11 Fuel gas 13A 2018 07E2 If you set this parameter to 0 also specify P 10 User set gas conversion factor C F If a setting that is not listed here is set this devic...

Страница 59: ...ill apply C 28 Optional analog scaling function 0 Disabled 1 Enabled 2028 07EC Set the scale by address 2217 C 29 PV fluctuation control function when fully closed 0 Disabled 1 Enabled 2029 07ED C 30...

Страница 60: ...e when written C 41 Undefined Always 0 2041 07F9 Returns 0 when the setting is read and returns a normal response when written C 42 Reserved 2042 07FA Returns 0 when the setting is read Do not write a...

Страница 61: ...point communication 0 to 3 2049 0801 C 50 Totalized flow rate unit communication 0 mL 1 L 2 m3 2050 0802 C 51 Totalized flow rate digits after the decimal point communication 0 to 3 2051 0803 C 52 Dis...

Страница 62: ...limit event 0 5 to 100 FS 2 2205 089D P 6 Flow rate deviation lower limit event hysteresis 0 5 to 100 FS 2 2206 089E P 7 Flow rate deviation event judgment delay time 5 to 9999 0 1 s 2207 089F P 8 Dig...

Страница 63: ...nication data format 3 The value is without a decimal point 4 P 19 Cumulative flow event setting first digits Same as above 2219 08AB Note Address 1602 is also used P 20 PV fluctuation control delay t...

Страница 64: ...Totalization pulse width 20 to 100 ms 2234 08BA Set in multiples of 10 1 For the number of decimal places and the unit of data see Flow rate digits after the decimal point address 1003 and Flow rate...

Страница 65: ...The current flow rate is reset to 0 Before executing this command set to control mode and SP 0 or to fully closed mode and stop the flow completely Total flow volume reset 9996 270C 12345 3039 The tot...

Страница 66: ...7 2 Chapter 7 Device Operation by Communication Commands...

Страница 67: ...col settings With this unit the user can select either CPL communication or Modbus communication RTU mode CPL communication is the default protocol Also if the communication protocol setting is change...

Страница 68: ......

Страница 69: ...istance 500 m max Communication system Half duplex Synchronization Start stop synchronization Data format 8 bit data 1 stop bit even parity Or 8 bit data 2 stop bits no parity Error detection Parity c...

Страница 70: ......

Страница 71: ...Revision History CP SP 1458E Printed Edn New Page No Description June 2021 1...

Страница 72: ......

Страница 73: ......

Страница 74: ...3 Measures to be taken to secure the required level of the reliability and safety of your Equipment in your use Although azbil is constantly making efforts to improve the quality and reliability of Az...

Страница 75: ...argin of your machine or equipment you are required to renew any Azbil Corporation s products every 5 to 10 years unless otherwise specified in specifications or instruction manuals System products fi...

Страница 76: ...1 12 2 Kawana Fujisawa Kanagawa 251 8522 Japan URL https www azbil com 30 Specifications are subject to change without notice 1st edition June 2021 V...

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