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Summary of Contents for Beckhoff KL3311
- Page 1 Documentation KL3311, KL3312, KL3314 and KL3302 Single, Dual- and Four-Channel Analog Imput Terminals for Thermocouples Version: Date: 2019-10-08...
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Page 3: Table Of Contents
3.4.2 Wiring.......................... 22 3.4.3 Shielding .......................... 23 KL3311 - Connection and LED description .................. 24 KL3312, KL3302 - Connection and LED Description .............. 25 KL3314 - Connection and LED description .................. 26 Connection of ground, shield und earthing .................. 27 ATEX - Special conditions (standard temperature range) ............... 28 3.10 ATEX Documentation ........................ 29... - Page 4 Table of contents Version: 4.2 KL3311, KL3312, KL3314 and KL3302...
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Page 5: Foreword
EP1590927, EP1789857, EP1456722, EP2137893, DE102015105702 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. The reproduction, distribution and utilization of this document as well as the communication of its contents to others without express authorization are prohibited. -
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
01 - hardware version 01 Beckhoff Identification Code (BIC) The Beckhoff Identification Code (BIC) is increasingly being applied to Beckhoff products to uniquely identify the product. The BIC is represented as a Data Matrix Code (DMC, code scheme ECC200), the content is based on the ANSI standard MH10.8.2-2016. -
Page 8: Fig. 1 Bic As Data Matrix Code (Dmc, Code Scheme Ecc200)
Optional: Year and week 2P401503180016 of production ID/serial number Optional: Present-day 51S678294104 serial number system, e.g. with safety products Variant number Optional: Product variant 30PF971, 2*K183 number on the basis of standard products Version: 4.2 KL3311, KL3312, KL3314 and KL3302... - Page 9 Example of composite information from item 1 to 4 and 6. The data identifiers are marked in red for better display: An important component of the BIC is the Beckhoff Traceability Number (BTN, item no. 2). The BTN is a unique serial number consisting of eight characters that will replace all other serial number systems at Beckhoff in the long term (e.g.
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Page 10: Product Overview
Product overview Product overview Introduction Fig. 2: KL3311, KL3312 and KL3314 The KL331x analog input terminals allow the direct connection of thermocouples. The circuit of the Bus Terminals can operate thermocouples using 2-wire technique. Linearization over the full temperature range is realized with the aid of a microprocessor. The temperature range can be selected freely. The error LEDs indicates a broken wire. -
Page 11: Technical Data
It is an unambiguous function of the temperature and the material. In a “TC element” this effect is utilized by operating two different conductor materials in parallel (s. fig [} 12].) KL3311, KL3312, KL3314 and KL3302 Version: 4.2... -
Page 12: Fig. 3 Principle Of The Thermocouple
Kelvin with the aid of the above thermocouple equation. Sensor circuit A modification of the sensor circuit with additional devices such as change over switches or multi- plexer decreases the measure accuracy. We strongly advise against such modifications. Version: 4.2 KL3311, KL3312, KL3314 and KL3302... - Page 13 A/D converter or to the minimum value of 0x8000. For overrange or underrange the red error LED is switched on. KL3311, KL3312, KL3314 and KL3302 Version: 4.2...
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Page 14: Fig. 4 Data Flow
U Measured temperature in 1/16°C Temperature after vendor scaling (1/10 °C) Temperature after user scaling Tout Process data to PLC The equations of the straight line are enabled via register R32 Fig. 4: Data Flow Version: 4.2 KL3311, KL3312, KL3314 and KL3302... -
Page 15: Mounting And Wiring
• Each assembly must be terminated at the right hand end with a KL9010 bus end terminal, to ensure the protection class and ESD protection. Fig. 5: Spring contacts of the Beckhoff I/O components Installation on mounting rails WARNING... -
Page 16: Fig. 6 Attaching On Mounting Rail
To mount the mounting rails with a height of 7.5 mm under the terminals and couplers, you should use flat mounting connections (e.g. countersunk screws or blind rivets). Version: 4.2 KL3311, KL3312, KL3314 and KL3302... -
Page 17: Fig. 7 Disassembling Of Terminal
PE power contact The power contact labeled PE can be used as a protective earth. For safety reasons this contact mates first when plugging together, and can ground short-circuit currents of up to 125 A. KL3311, KL3312, KL3314 and KL3302 Version: 4.2... -
Page 18: Fig. 8 Power Contact On Left Side
Power Feed Terminals can be released and pulled at least 10 mm from the group of terminals. WARNING Risk of electric shock! The PE power contact must not be used for other potentials! Version: 4.2 KL3311, KL3312, KL3314 and KL3302... -
Page 19: Installation Instructions For Enhanced Mechanical Load Capacity
The Bus Terminal system offers different connection options for optimum adaptation to the respective application: • The terminals of ELxxxx and KLxxxx series with standard wiring include electronics and connection level in a single enclosure. KL3311, KL3312, KL3314 and KL3302 Version: 4.2... -
Page 20: Fig. 9 Standard Wiring
The overview and nomenclature of the product names for ESxxxx and KSxxxx series has been retained as known from ELxxxx and KLxxxx series. Version: 4.2 KL3311, KL3312, KL3314 and KL3302... -
Page 21: Fig. 11 High Density Terminals
Ultrasonically “bonded" conductors It is also possible to connect the Standard and High Density Terminals with ultrasonically "bonded" (ultrasonically welded) conductors. In this case, please note the tables concerning the wire-size width below! KL3311, KL3312, KL3314 and KL3302 Version: 4.2... -
Page 22: Wiring
The cables are released, as usual, using the contact release with the aid of a screwdriver. See the following table for the suitable wire size width. Version: 4.2 KL3311, KL3312, KL3314 and KL3302... -
Page 23: Shielding
0.14 ... 0.75 mm Wire size width (ultrasonically “bonded" conductors) only 1.5 mm Wire stripping length 8 ... 9 mm 3.4.3 Shielding Shielding Encoder, analog sensors and actors should always be connected with shielded, twisted paired wires. KL3311, KL3312, KL3314 and KL3302 Version: 4.2... -
Page 24: Kl3311 - Connection And Led Description
Mounting and wiring KL3311 - Connection and LED description WARNING Risk of injury through electric shock and damage to the device! Bring the Bus Terminals system into a safe, de-energized state before starting mounting, disassembly or wiring of the Bus Terminals! Fig. 13: KL3311 - Connection and LEDs... -
Page 25: Kl3312, Kl3302 - Connection And Led Description
100 ms, the green LEDs go out Error1 LED Wire breakage. The resistance is in the invalid range of the characteristic curve of the respective Error2 LED thermocouple. The resistance is in the valid range of the characteristic curve KL3311, KL3312, KL3314 and KL3302 Version: 4.2... -
Page 26: Kl3314 - Connection And Led Description
Wire breakage. The resistance is in the invalid range of the characteristic curve of the respective Error2 LED, thermocouple. Error3 LED, The resistance is in the valid range of the characteristic curve Error4 LED Version: 4.2 KL3311, KL3312, KL3314 and KL3302... -
Page 27: Connection Of Ground, Shield Und Earthing
Fig. 16: KL3312 - Connection of ground, shield und earthing (left: earthed thermocouple, right: non-earthed thermocouple) The examples show the situation for KL3312. For the KL3314, the shield should be connected to an additional shield terminal (KL9195). KL3311, KL3312, KL3314 and KL3302 Version: 4.2... -
Page 28: Atex - Special Conditions (Standard Temperature Range)
80°C at the wire branching points, then cables must be selected whose tempera- ture data correspond to the actual measured temperature values! • Observe the permissible ambient temperature range of 0 to 55°C for the use of Beckhoff fieldbus compo- nents standard temperature range in potentially explosive areas! •... -
Page 29: Atex Documentation
Notes about operation of the Beckhoff terminal systems in potentially explosive ar- eas (ATEX) Pay also attention to the continuative documentation Notes about operation of the Beckhoff terminal systems in potentially explosive areas (ATEX) that is available in the download area of the Beckhoff homepage http:\\www.beckhoff.com! KL3311, KL3312, KL3314 and KL3302... -
Page 30: 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: 4.2 KL3311, KL3312, KL3314 and KL3302... -
Page 31: Sample Program For Kl Register Communication Via Ethercat On Kl3314 Exemplary
This example program (TwinCAT 3) provides change of single register values of the KL3314 as selection of the element type, characteristical settings of the feature register R32 and user scaling offset and gain (R33/ R34) similar as per KS2000. KL3311, KL3312, KL3314 and KL3302 Version: 4.2... -
Page 32: Fig. 18: Settings Of Kl3314 Via Visualisation Of Twincat 3
Preparations for starting the sample programs (tnzip file / TwinCAT 3) • Click on the download button to save the Zip archive locally on your hard disk, then unzip the *.tnzip archive file in a temporary folder. Fig. 19: Opening the *. tnzip archive Version: 4.2 KL3311, KL3312, KL3314 and KL3302... -
Page 33: Fig. 20 Search Of The Existing Hw Configuration For The Ethercat Configuration Of The Example
"Change NetId..." have to be selected. The first 4 numbers of the NetId of the target computer have to be entered; the both last values are 4.1 usually. Example: ◦ NetId of project: myComputer (123.45.67.89.1.1) ◦ Entry via „Change NetId...“: 123.45.67.89.4.1 KL3311, KL3312, KL3314 and KL3302 Version: 4.2... -
Page 34: Access From The User Program
If the control and status byte are not evaluated, the terminals occupy 2 bytes per channel: • KL3311: 2 bytes of input data • KL3312 (KL3302): 4 bytes of input data • KL3314: 8 bytes of input data Fig. 22: Mapping in the Profibus Coupler - example for KL3312, KL3302... -
Page 35: Mapping In The Bus Coupler
Access from the user program BK4000 Interbus Coupler The BK4000 Interbus Coupler maps the terminals in the delivery state with 2 bytes per channel: • KL3311: 2 bytes of input data • KL3312 (KL3302): 4 bytes of input data • KL3314: 8 bytes of input data Parameterization via the fieldbus is not possible. -
Page 36: Kl3311 - Default Mapping
Channel n, data byte 1 (byte with the highest value) "-" This byte is not used or occupied by the terminal. Res. Reserved: this byte is assigned to the process data memory, although it has no function. Version: 4.2 KL3311, KL3312, KL3314 and KL3302... -
Page 37: Kl3312 (Kl3302) - Default Mapping
Channel n, data byte 1 (byte with the highest value) "-" This byte is not used or occupied by the terminal. Res. Reserved: this byte is assigned to the process data memory, although it has no function. KL3311, KL3312, KL3314 and KL3302 Version: 4.2... -
Page 38: Kl3314 - Default Mapping
Ch0 CB/SB Motorola format: yes Ch0 D0 Ch0 D1 Word alignment: yes Res. Ch1 CB/SB Ch1 D0 Ch1 D1 Res. Ch2 CB/SB Ch2 D0 Ch2 D1 Res. Ch3 CB/SB Ch3 D0 Ch3 D1 Version: 4.2 KL3311, KL3312, KL3314 and KL3302... -
Page 39: Register Overview
User scaling: Gain 0x0100 SEEROM R34 [} 43] R35…R63 reserved 0x0000 SEEROM Register description The registers can be read or written via the register communication. They are used for the parameterization of the terminal. KL3311, KL3312, KL3314 and KL3302 Version: 4.2... - Page 40 Structure 1 byte n words with variable logical channel length 0x15 Double word array with variable logical channel length 0x16 Structure 1 byte n double words with variable logical channel length • R14: reserved Version: 4.2 KL3311, KL3312, KL3314 and KL3302...
- Page 41 If the write protection is active, the register contains a zero value. • R32: Feature register [0x1006] This register specifies the operation modes of the terminal. KL3311, KL3312, KL3314 and KL3302 Version: 4.2...
- Page 42 Process data • R33: User scaling - offset (B_w) 16-bit signed integer This register contains the offset of the user linear equation (Eq. 1.7 [} 14]). The linear equation is enabled via register R32 [} 42]. Version: 4.2 KL3311, KL3312, KL3314 and KL3302...
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Page 43: Control And Status Byte
This is followed by gain compensation with a maximum voltage of 125 mV (typical value: 70 mV). With this terminal setting with vendor scaling deactivated, the voltage is output in 4 µV per digit. Gain and offset compensation of the thermocouple voltage is carried out separately for each channel. KL3311, KL3312, KL3314 and KL3302 Version: 4.2... - Page 44 (measured via an internal temperature sensor) is set accordingly (via R21). The cold junction temperature only has to be calibrated once for each terminal, i.e. R21 is identical for both channels. Version: 4.2 KL3311, KL3312, KL3314 and KL3302...
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Page 45: Register Communication
Example 1: Reading of register 8 in the BK2000 with a KL3312 and the end terminal: If the following bytes are transferred from the controller to the terminal, KL3311, KL3312, KL3314 and KL3302 Version: 4.2... -
Page 46: Examples Of Register Communication
• The terminal returns the firmware version 0x3341 in the input data word (byte 1 and byte 2). This is to be interpreted as an ASCII code: ◦ ASCII code 0x33 represents the digit 3 Version: 4.2 KL3311, KL3312, KL3314 and KL3302... -
Page 47: Example 2: Writing To An User Register
• The output data word (byte 1 and byte 2) has no meaning during read access. Input Data (answer of the bus terminal) Byte 0: Status byte Byte 1: DataIN1, high byte Byte 2: DataIN1, low byte 0x9F (1001 1111 0x12 0x35 KL3311, KL3312, KL3314 and KL3302 Version: 4.2... - Page 48 • The output data word (byte 1 and byte 2) has no meaning during read access. Input Data (answer of the bus terminal) Byte 0: Status byte Byte 1: DataIN1, high byte Byte 2: DataIN1, low byte 0xA0 (1010 0000 0x00 0x02 Explanation: Version: 4.2 KL3311, KL3312, KL3314 and KL3302...
- Page 49 • 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! KL3311, KL3312, KL3314 and KL3302 Version: 4.2...
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Page 50: 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 51 KL3311, KL3312 and KL3314...................... Fig. 3 Principle of the thermocouple ...................... Fig. 4 Data Flow............................. Fig. 5 Spring contacts of the Beckhoff I/O components................. Fig. 6 Attaching on mounting rail ......................Fig. 7 Disassembling of terminal......................Fig. 8 Power contact on left side......................
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