background image

BRONKHORST HIGH-TECH B.V. 

 
9.17.024 

Page 13 

 

The default software programmable address is 3. 
 
During instrument initialisation, the node address switches are read. If the switches specify a valid FLOW-BUS 
address, i.e. a value from 3 to 99, this value is used. 
If the specified address differs from the value stored in the instrument, the new address is saved in memory. 
If the switches specify an invalid FLOW-BUS address, i.e. a value of 1 or 2, the value stored in the instrument’s 
memory will be used as the address. 
 

 

2.7  Security and flexibility 

 
FLOW-BUS systems are designed to transport data as quickly and reliable as possible. There are integrated 
mechanisms for checking, retry- and error- handling. Modules can be removed from the FLOW-BUS temporarily 
(e.g. for service) and can be replaced or re-installed later. 
New modules will be recognised automatically by other modules in the system. 
FLOW-BUS systems can consist of at least 2 or maximum 126 Bronkhorst High-Tech products. 
 
 
 

Содержание FLOW-BUS

Страница 1: ...s Flow Pressure instruments Doc no 9 17 024K Date 26 02 2010 ATTENTION Please read this instruction manual carefully before installing and operating the instrument Not following the guidelines could result in personal injury and or damage to the equipment ...

Страница 2: ...the operator according to the specific fieldbus protocol More information can be found in other documents Multibus instruments have modular instruction manuals consisting of General instructions digital Mass Flow Pressure instruments laboratory style IN FLOW document nr 9 17 022 General instructions CORI FLOW document nr 9 17 031 Operation instructions digital instruments document nr 9 17 023 Fiel...

Страница 3: ...3 319 endterminator 7 03 321 Y adapter 7 03 319 patchcable Y adapter 7 03 241 patchcable Y adapter 7 03 241 Y adapter 7 03 241 patchcable Y adapter 7 03 241 beginterminator 7 03 297 patchcable endterminator 7 03 298 Y adapter 7 03 241 endterminator 7 03 321 Y adapter 7 03 319 beginterminator 7 03 297 Y adapter 7 03 241 Y adapter 7 03 241 endterminator 7 03 298 beginterminator 7 03 297 Y adapter 7 ...

Страница 4: ...o M12 Y adapter 7 03 319 cable cable RJ45 to M12 cable Y adapter 7 03 319 Y adapter 7 03 319 power isolator 1 09 239 Y adapter 7 03 241 beginterminator 7 03 297 endterminator 7 03 298 Y adapter 7 03 241 patchcable Y adapter 7 03 241 patchcable patchcable patchcable Y adapter 7 03 241 Y adapter 7 03 241 patchcable patchcable patchcable Y adapter 7 03 241 patchcable Y adapter 7 03 241 Y adapter 7 03...

Страница 5: ...7 03 241 patchcable patchcable patchcable Bronkhorst HIGH TECH Bronkhorst HIGH TECH Bronkhorst HIGH TECH Y adapter 7 03 319 Incorrect Correct Y adapter 7 03 319 endterminator 7 03 321 Y adapter 7 03 319 beginterminator 7 03 297 Y adapter 7 03 241 Incorrect Correct The last instrument on the bus needs a bus end termination connector black The first module on the bus either an E 7000 module for digi...

Страница 6: ...ent will install itself to a free node address 3 Make link to operator module search module on the bus with the operator You can search for this instrument looking for type and serial number a With E 7000 module for digital instruments Go to the FLOW BUS menu and select OPERATE INSTR Use or keys to search the bus for the wanted instrument Instruments can be identified by their serial number Also b...

Страница 7: ...installation to FLOW BUS 11 2 6 3 Install to bus on a pre defined node address or re address instrument on the bus 12 2 6 4 Install to bus via rotary switches on the side of the instrument if present 12 2 7 Security and flexibility 13 3 FLOW BUS system operation with computer 14 3 1 Communication with FLOW BUS DDE server 14 3 2 Communication with FLOW BUS directly through DLL 14 3 3 Communication ...

Страница 8: ...meters input output adjustments identification FLOW BUS network settings When using Bronkhorst High Tech Electronics like E 7000 systems changing of parameter settings at digital instruments is possible via the menu However when changing of parameter settings via other self made software running on computers using RS232 and or FLOW BUS DLL and or FLOWDDE is wanted for safety reasons setting of spe...

Страница 9: ...e 6 Node 7 Node 8 Node 9 Node 10 PowerIsolator 1 09 239 RS 232 2 FLOW BUS 2 1 General FLOW BUS is a 3 wire RS485 based fieldbus communication system for parameter value exchange between digital BRONKHORST HIGH TECH B V products In this system each instrument device is equipped with a micro controller for its own dedicated task but also for exchanging parameter value information with other instrume...

Страница 10: ...ill do well If more cables are used in one system they have to be connected as a daisy chain This means that the total FLOW BUS system has only one begin and one end For connecting instruments to the bus Bronkhorst High Tech offers special drop cables which enable you to build a daisy chained network of FLOW BUS modules 2 4 Termination For best quality of data transfer FLOW BUS should be terminate...

Страница 11: ... power up your system afterwards the modules will start up on the same address on the bus because these settings are stored in their non volatile memory So if you receive a new system normally you only have to connect the cables and switch on the power If a new module has to be connected to a bus system it needs a free address Normally this will be the first free address counted from address 3 Add...

Страница 12: ...top of the instrument until the green LED starts blinking fast After releasing the button the instrument will install itself on the bus automatically on a free address When the green LED is burning continuously the instrument is operational Note 2 If you take one or more modules out of your system or if one or more modules do not get power be careful installing new modules or changing the configur...

Страница 13: ...y an invalid FLOW BUS address i e a value of 1 or 2 the value stored in the instrument s memory will be used as the address 2 7 Security and flexibility FLOW BUS systems are designed to transport data as quickly and reliable as possible There are integrated mechanisms for checking retry and error handling Modules can be removed from the FLOW BUS temporarily e g for service and can be replaced or r...

Страница 14: ... with need of very high update rates of data within 1 sec is not possible 3 2 Communication with FLOW BUS directly through DLL Part of this FLOW BUS software is a 32 bit DLL for Windows95 and higher Windows NT 4 0 and Windows2000 You may call the functions in this library directly to communicate with devices on the FLOW BUS Further documentation may be ordered at your local sales representative Pr...

Страница 15: ...s the following pin configuration Pinnumber Description 1 2 3 4 5 6 7 8 15 Vdc 24 Vdc supply 0 V Shield 0 V 15 Vdc 24 Vdc supply 0 V RS485 B RS485 A The chassis M12 circular connector for IP65 applications has the following pin configuration Pinnumber Description 1 2 3 4 5 Shield 15 Vdc 24 Vdc supply 0V RS485 A RS485 B 4 2 3 5 1 A coded ...

Страница 16: ... termination Other module s on the bus could cause trouble Check correct functioning from other module s on the bus PC programs with interface modules included No communication possible with PC software program Interface settings could be wrong Check settings e g for RS232 COM port and baudrate Interface has bad connection to FLOW BUS Check cabling of interface Red or green LED s are blinking on t...

Отзывы: