Related Manuals for Beckhoff KM3701
Summary of Contents for Beckhoff KM3701
- Page 1 Documentation KM3701, KM3702 and KM3712 Pressure Measuring Module Version: 2.0.0 Date: 2017-11-20...
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Page 3: Table Of Contents
Recommended mounting rails ...................... 16 Mounting and demounting - terminals with front unlocking............ 16 Connection............................ 18 4 Application examples.......................... 19 KM3701 - Application examples .................... 19 KM3702 - Application example ..................... 20 KM3712 - Application example ..................... 21 5 KS2000 Configuration software ...................... 22 KS2000 - Introduction ........................ - Page 4 Table of contents Version: 2.0.0 KM3701, KM3702 and KM3712...
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Page 5: Foreword
The TwinCAT Technology is covered, including but not limited to the following patent applications and patents: EP0851348, US6167425 with corresponding applications or registrations in various other countries. ® EtherCAT is registered trademark and patented technology, licensed by Beckhoff Automation GmbH, Germany Copyright © Beckhoff Automation GmbH & Co. KG, Germany. -
Page 6: Safety Instructions
All the components are supplied in particular hardware and software configurations appropriate for the application. Modifications to hardware or software configurations other than those described in the documentation are not permitted, and nullify the liability of Beckhoff Automation GmbH & Co. KG. Personnel qualification This description is only intended for trained specialists in control, automation and drive engineering who are familiar with the applicable national standards. -
Page 7: Documentation Issue Status
HH - hardware version Example with ser. no.: 35 05 00 01: 35 - week of production 35 05 - year of production 2005 00 - firmware version 00 01 - hardware version 01 KM3701, KM3702 and KM3712 Version: 2.0.0... -
Page 8: Product Overview
Fig. 1: KM3701 Single-channel differential pressure measuring module The KM3701 differential pressure measuring module enables direct measurement of pressure differences between two hose connections. The pressure difference is available in the fieldbus with 16-bit resolution. The measuring range is between -100 hPa and +100 hPa (-100 mbar to +100 mbar). The status LEDs indicate proper function or errors such as range exceedance. -
Page 9: Km3702 - Introduction
The pressure is determined as the difference to the environment of the KM3702 and is available in the fieldbus with 16 bit resolution. The status LEDs indicate proper function or errors such as range exceedance. KM3701, KM3702 and KM3712 Version: 2.0.0... -
Page 10: Km3712 - Introduction
The pressure is determined as the difference to the environment of the KM3712 and is available in the fieldbus with 16 bit resolution. The status LEDs indicate proper function or errors such as range exceedance. Version: 2.0.0 KM3701, KM3702 and KM3712... -
Page 11: Technical Data
35 mm mounting rail [} 16] (e.g. DIN rail TH 35-7.5 conforming to EN 60715) Vibration / shock conforms to EN 60068-2-6 / EN 60068-2-27 resistance EMC immunity / emission conforms to EN 61000-6-2 / EN 61000-6-4 Protection class IP20 Installation position variable Approval CE, cULus KM3701, KM3702 and KM3712 Version: 2.0.0... -
Page 12: Basic Function Principles
Basic function principles Fig. 4: Bus Terminal block with pressure measuring modules The pressure measuring modules KM3701 and KM3712 directly record differential and relative pressures in non-aggressive gases. As in electronic signal acquisition the pressure measurement takes place via a terminal module. The pressure measuring modules convert the measured pressure into an electrical signal and make it available to the higher-level controller with a resolution of 16 bits. -
Page 13: Fig. 5 Km3701 - Single-Channel Differential Pressure Measurement
KM3701 single-channel differential pressure measuring module Fig. 5: KM3701 - Single-channel differential pressure measurement The KM3701 terminal module can measure pressure differences between 0 and 100 hPa (0 and 100 mbar) between two hose connections. The differential pressure can be measured up to an ambient pressure of 7500 hPa (7 bar) between any points. -
Page 14: Fig. 7 Km3712 - Two-Channel Relative Pressure Measurement
In terms of connections and installation space the pressure measuring terminals are designed like a "normal" 24 mm Bus Terminal and can be installed with minimum space requirement directly in the Bus Terminal system. Version: 2.0.0 KM3701, KM3702 and KM3712... -
Page 15: Led Displays
Product overview LED displays KM3701 Fig. 8: KM3701 - LEDs Display Run (green) Data transmission on the K-bus is not active Data transmission on the K-bus is active Over-range (red) The differential pressure is above the permitted measuring range [} 11] Under-range (red) on The differential pressure is below the permitted measuring range [} 11]... -
Page 16: Mounting And Wiring
Risk of electric shock and damage of device! Bring the bus terminal system into a safe, powered down state before starting installation, disassembly or wiring of the Bus Terminals! WARNING Mounting • Fit the mounting rail to the planned assembly location. Version: 2.0.0 KM3701, KM3702 and KM3712... - Page 17 (3a) from the top hat rail back into the terminal module. • Pull (4) the terminal module away from the mounting surface. Avoid canting of the module; you should stabilize the module with the other hand, if required. KM3701, KM3702 and KM3712 Version: 2.0.0...
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Page 18: Connection
Mounting and wiring Connection The air hoses are connected to push-in fittings. Technical Data Threaded push-in fitting Type QSS-4-F Outer hose diameter 4 mm Nominal diameter 2.6 mm Thread M12 x 1 Width across flats 14 mm Version: 2.0.0 KM3701, KM3702 and KM3712... -
Page 19: Application Examples
WARNING Tank systems Fig. 10: KM3701 - Application example for the fill level of tanks • Monitors tank filling levels and activates topping up when the level falls below a defined filling value • The pressure difference is an indicator for the filling level •... -
Page 20: Km3702 - Application Example
Application examples Filter systems, pipe constrictions Fig. 11: KM3701 - Application example for filter systems, pipe restrictions • Monitors the operating state of filters and screens • The pressure difference indicates the level of contamination KM3702 - Application example Risk of injury through electric shock and damage to the device! -
Page 21: Km3712 - Application Example
Bring the Bus Terminals system into a safe, de-energized state before starting mounting, disassembly or wiring of the Bus Terminals! WARNING Packaging plant for eggs Fig. 13: EM3712 - Application example Packging plant for eggs • controls suction • Pressure deviations indicate leakages or positioning inaccuracies KM3701, KM3702 and KM3712 Version: 2.0.0... -
Page 22: Ks2000 Configuration Software
Fieldbus Box modules with the aid of which settings can be modified easily. Alternatively, you have full access to all internal registers of the bus couplers and intelligent terminals. Refer to the register description for the meanings of the registers. Version: 2.0.0 KM3701, KM3702 and KM3712... -
Page 23: Parameterization With Ks2000
In the example shown, this is • a BK9000 Bus Coupler for Ethernet • a KL1xx2 Digital Input Terminal • a KM3701 differential pressure measuring module • a KL9010 Bus End Terminal KM3701, KM3702 and KM3712 Version: 2.0.0... -
Page 24: Fig. 15 Display Of The Fieldbus Station In Ks2000
(pos. 2 in the example). Fig. 16: KS2000 branch for channel 1 of the KM3701 For the KM3701, the branches Register, Settings and ProcData are displayed: • Register [} 25] enables direct access to the KM3701 registers. • ProcData [} 26] shows the process data of the KM3701. -
Page 25: Register
KS2000 Configuration software Register Under Register you can directly access the registers of the terminal module (KM3701 in this example). The meaning of the register is explained in the Register Overview [} 30]. Fig. 17: Register view in KS2000 KM3701, KM3702 and KM3712... -
Page 26: Process Data
After pressing the Settings button you can set the format of the numerical display to hexadecimal, decimal or binary. Fig. 22: Setting the display Version: 2.0.0 KM3701, KM3702 and KM3712... -
Page 27: Access From The User Programm
Access from the user programm Access from the user programm KM3701 - Process image The KM3701 terminal module is represented in the process image with a maximum of 3 bytes of input data and 3 bytes of output data. These are organized as follows: Format... -
Page 28: Control And Status Byte
Status byte 1 (SB1) is located in the input image and is transmitted from terminal module to the controller. SB1.7 SB1.6 SB1.5 SB1.4 SB1.3 SB1.2 SB1.1 SB1.0 Name RegAccess Error StateThreshold2 StateThreshold1 Overload Underload Version: 2.0.0 KM3701, KM3702 and KM3712... - Page 29 Number of the register that was read or written. Channel 2 (only KM3702 and KM3712) The control and status bytes of channel 2 (CB2 and SB2) have the same structure as the control and status bytes of channel 1 [} 28]. KM3701, KM3702 and KM3712 Version: 2.0.0...
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Page 30: Register Overview
Access from the user programm Register overview The registers are used for the parameterization of the Bus Terminals and are available for each channel. They can be read or written by means of register communication. Version: 2.0.0 KM3701, KM3702 and KM3712... - Page 31 R/W EEPROM R32 [} 33] User offset 0x0000 R/W EEPROM R33 [} 34] User gain 0x0100 R/W EEPROM R34 [} 34] Threshold 1 0x0000 R/W EEPROM R35 [} 34] Threshold 2 0x0000 R/W EEPROM R36 [} 34] reserved reserved reserved KM3701, KM3702 and KM3712 Version: 2.0.0...
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Page 32: Register Description
= 24 , hence 3 bytes. The fact that bit 7 is set indicates that the control and status byte are not mandatory for the terminal function and are not transferred in compact mode. Version: 2.0.0 KM3701, KM3702 and KM3712... - Page 33 The feature register defines the module configuration. R32.15 R32.14 R32.13 R32.12 R32.11 R32.10 R32.9 R32.8 Name - enTh2 enTh1 enOverProt R32.7 R32.6 R32.5 R32.4 R32.3 R32.2 R32.1 R32.0 Name - enSiemens enAverage disWdTimer enManScal enUsrScal Format Format KM3701, KM3702 and KM3712 Version: 2.0.0...
- Page 34 Threshold 1 is entered in register R35. The threshold can be activated in the feature register through bit R32.10 [} 33]. R36: Threshold 2 Threshold 2 is entered in register R36. The threshold can be activated in the feature register through bit R32 [} 33].11. Version: 2.0.0 KM3701, KM3702 and KM3712...
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Page 35: Examples Of Register Communication
• Bit 0.6 set means: writing to the register. • Bits 0.5 to 0.0 specify the register number 31 with 01 1111 • The output data word (byte 1 and byte 2) contains the code word (0x1235) for deactivating write protection. KM3701, KM3702 and KM3712 Version: 2.0.0... - Page 36 The bits of the feature register change the properties of the terminal and have a different CAUTION meaning, depending on the type of terminal. Refer to the description of the feature register of your terminal (chapter Register description) regarding the meaning of the individual bits before changing the values. Version: 2.0.0 KM3701, KM3702 and KM3712...
- Page 37 • The terminal returns a value as a receipt in the status byte that differs only in bit 0.6 from the value of the control byte. • The input data word (byte 1 and byte 2) is of no importance after the write access. Any values still displayed are invalid! KM3701, KM3702 and KM3712 Version: 2.0.0...
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Page 38: Appendix
Beckhoff's branch offices and representatives Please contact your Beckhoff branch office or representative for local support and service on Beckhoff products! The addresses of Beckhoff's branch offices and representatives round the world can be found on her internet pages: http://www.beckhoff.com You will also find further documentation for Beckhoff components there. - Page 39 KM3701 - LEDs ........................... Fig. 9 KM3702, KM3712 - LEDs ......................Fig. 10 KM3701 - Application example for the fill level of tanks .............. Fig. 11 KM3701 - Application example for filter systems, pipe restrictions..........Fig. 12 KM3702 - Application example for pneumatic systems ...............