BECKHOFF KL3311 User Manual

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Operating instructions for

KL3311, KL3312, KL3314 and KL3302

Single-, Two- and Four-Channel Analog Input Terminals for Thermocouples

Version: 3.4 Date: 2008-05-19

Table of contents

1. Foreword 1

Notes on the documentation 1 Safety Instructions 2

2. Technical data 3

3. Connection 3

KL3311 3 KL3312 (KL3302) 4 KL3314 4

4. Functional description 5

5. Terminal configuration 8

6. Register Description 9

General Description of Registers 9 Terminal-specific register description 12 Control and Status byte 14 Register communication 15

7. Appendix 17

Mapping 17 Register Table 20 Support and Service 21

KL3311, KL3312, KL3314 and KL3302

Foreword

Notes on the documentation

This description is only intended for the use of trained specialists in control and automation engineering who are familiar with the applicable national standards. It is essential that the following notes and explanations are followed when installing and commissioning these components.

Liability Conditions

The responsible staff must ensure that the application or use of the products describe d satisfy all the requirements for safety, including all the relevant laws, regulations, guidelines and standards.

The documentation has been prepared with care. The products described are, however, constantly under development. For that reason the documentation is not in every case checked for consistency with performance data, standards or other characteristics. None of the statements of this manual represent s a guarantee (Garantie) in the meaning of § 443 BGB of the German Civil Code or a statement about the contractually expected fitness for a particular purpose in the meaning of § 434 par. 1 sentence 1 BGB. In the event that it contains technical or editorial errors, we retain the right to make alterations at any time and without warning. No claims for the modification of products that have already been supplied may be made on the basis of the data, diagrams and descriptions in this documentation.

Delivery conditions

In addition, the general delivery conditions of the company Beckhoff Automation GmbH apply.

This documentation is copyrighted. Any reproduction or third party use of this publication, whether in

whole or in part, without the written permission of Beckhoff Automation GmbH, is forbidden.

KL3311, KL3312, KL3314 and KL3302 1

Foreword

Safety Instructions

State at Delivery

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.

Description of safety symbols

The following safety symbols are used in this documentation. They are intended to alert the reader to the associated safety instructions..

This symbol is intended to highlight risks for the life or health of personnel.

Danger

This symbol is intended to highlight risks for equipment, materials or the

Attention

environment. This symbol indicates information that contributes to better understanding.

Note

2 KL3311, KL3312, KL3314 and KL3302

Technical data

Technical data KL3311 KL3302* KL3312 KL3314

Number of inputs

Power supply

Thermocouple sensor type

Connection

Temperature range within the respective defined range of the sensor

Resolution

Broken lead detection

Conversion time

Meas. error (total meas.

range)

Electrical isolation

Current consumption from

K-Bus

Bits width in process

image

Configuration

Weight

Operating temperature

Storage temperature

Relative humidity

Vibration / shock

resistance

EMC resistance burst / ESD

Installation position

Protection class

1 2 2 4 via the K-Bus Types J, K, L, B, E, N, R, S, T, U (default setting type K), mV measurement 2 wire

(Default: type K; -100° ... 1370°C)

0.1°C per digit yes no yes yes ~ 200 ms ~ 250 ms < ± 0.5% (of the full scale value)

500 V typically 65 mA

Input: 1 x 16 bits of data (1 x 8 bits control/status optional)

no address setting, configuration via bus coupler or controller approx. 70 g 0°C ... +55°C

-25°C ... +85°C 95 % no condensation according to EN 60068-2-6 / EN 60068-2-27, EN 60068-2-29

according to EN 61000-6-2 / EN 61000-6-4 any IP20

(K-Bus/signal voltage)

rms

Input: 2 x 16 bits of data (2 x 8 bits control/status optional)

Input: 4 x 16 bits of data (4 x 8 bits control/status optional)

*) KL3302 is no longer available and was replaced with KL3312.

Connection

KL3311

KL3311, KL3312, KL3314 and KL3302 3

Connection

KL3312 (KL3302)

KL3314

4 KL3311, KL3312, KL3314 and KL3302

Functional description

The thermocouple terminals KL3311, KL3302 (without broken wire

detection), KL3312 and KL3314 can evaluate type J, K, B, E, N, R, S, T, U and L thermocouples. The characteristic curves are linearized and the reference temperature determined directly within the terminal. Temperatures are output in 1/10°C. The terminal is fully configurable via the Bus Coupler or the control. Different output formats may be selected or own scaling activated. In addition, linearization of the characteristic curve and determination and calculation of the reference temperature (temperature at the terminal connection contacts) can be switched off.

Functioning Thermocouples can be classified as active measuring sensors. They

exploit the thermo-electric effect (Seebeck, Peltier, Thomson). Where two electrical conductors of different materials (e.g. iron and constantan) make contact, charge is transferred across the contact surface. A contact potential develops, and is strongly dependent on temperature. The thermally generated voltage is both a function of the temperature being measured, T, and of the reference temperature, T

, at the point where

contact is made with the thermocouple. Since the coefficients are determined at a reference temperature of 0°C, it is necessary to compensate for the effect of the reference temperature. This is done by converting the reference temperature into a reference voltage that depends on the type of thermocouple, and adding this to the measured thermal voltage. The temperature is found from the resulting voltage and the corresponding curve.

= U

meas

+ U

ref

= f(Uk)

aus

Process data output format In the delivery state, the measured value is displayed in increments of

1/10 °C in two's complement format (integer). Other display types can be selected via the feature register (e.g. sign/amount representation, Siemens output format).

Measured value Hexadecimal output Signed integer output

-200.0°C

-100.0°C

-0.1°C

0.0°C

0.1°C

100.0°C

200.0°C

500.0°C

850.0°C

1,000.0°C

0xF830 -2000 0xFC18 -1000 0xFFFF -1 0x0000 0 0x0001 1 0x03E8 1000 0x07D0 2000 0x1388 5000 0x2134 8500 0x2710 10000

Voltage limits U

> U

: Bits 1 and 6 (over range and error bits) in the status byte are

kmax

set. The linearization of the characteristic curve is continued with the coefficients of the upper range limit up to the limit stop of the A/D converter or to the maximum value of 0x7FFF.

KL3311, KL3312, KL3314 and KL3302 5

Functional description

< U

: Bits 0 and 6 (under range and error bits) in the status byte are

kmin

set. The linearization of the characteristic curve is continued with the coefficients of the lower range limit up to the limit stop of the A/D converter or to the minimum value of 0x8000. For over range or under range the red error LED is switched on.

LED display The four LEDs indicate the operating state of the associated terminal

channels. Green LEDs: RUN (not applicable for KL3314)

• On: normal operation

• Off: Watchdog-timer overflow has occurred. If no process data are

transmitted by the Bus Coupler for 100 ms, the green LEDs go out.

Red LEDs: ERROR

• On: Wire breakage. The resistance is in the invalid range of the characteristic curve of the respective thermocouple.

• Off: The resistance is in the valid range of the characteristic curve.

Process data The process data that are transferred to the terminal bus are calculated

using the following equations: X_ref: ADC value of the reference point

: Temperature of the reference point

ref

: Voltage value of the reference point

ref

X_R: ADC value of the temperature sensor U

: Voltage value of the temperature sensor

A_a, B_a: Manufacturer gain and offset compensation (R17, R18) A_h, B_h: Manufacturer scaling A_w, B_w: User scaling U

: Sum of U

and Um1

ref

T: Measured temperature in 1/16 °C T

: Tempe rature after manufacturer scaling (1/10 °C)

: Tempe ratu re after user scaling

T_AUS: Process data to PLC a) Voltage value of the reference point:

= A00 * X_ (1.0)

ref

= a1 * T

ref

+ b1 * T

ref

+ c1 (1.1)

ref

b) Measured temperature in 1/16°C: U

= A_a * X_m + B_a (1.2)

= U

+ Um1 (1.3)

ref

T = a

* U

+ b0 * Uk + c0 (1.4)

c) Neither user nor manufacturer scaling are active: T_AUS = T (1.5)

d) Manufacturer scaling active (factory setting): T

= A_h * T + B_h (1.6)

Y_AUS = T

e) User scaling active: Ta = A_w * T + B_w (1.7) Y_AUS = T

f) Manufacturer and user scaling active: (1.8) Y_1 = A_h * T + B_h Y_2 = A_w * Y_1 + B_w Y_AUS = Y_2

6 KL3311, KL3312, KL3314 and KL3302

Functional description

LM334

X_vgl Tvgl

a1,b1,c

TThTa

Ta us

Output: microV

Tvgl

ADC

A00,B00

Uvgl

1:1 1:1 1:1

Output: Tvgl in °C

X_m

Um1

amount

rep.

A_h,B_h

A_a, B_a Gain, Offset adjust.

Output: microV Output: T in 1/16°C

Connection Due to the differential inputs of the terminals, different connection types are

recommended depending on the type of thermocouple used. For earthed thermocouples, ground is connected to the screen. If the thermocouple has no earth connection, the ground, screen and -TC1 or TC2 contacts are connected with each other.

a0, b0, c0

temperature

manuf. scal.

Siemensformat

A_w,B_w userscaling

Shield Shield

Earthed thermocouple Floating thermocouple The examples show the situation for KL3312. For the KL3314, the screen

should be connected to an additional screen terminal (KL9195).

KL3311, KL3312, KL3314 and KL3302 7

Terminal configuration

The terminals can be configured and parameterized via the internal register

BK2000 Lightbus Coupler In the BK2000 Lightbus coupler, the control and status byte is mapped in

Example for KL3312 (KL3302):

Terminal configuration

structure. Each terminal channel is mapped in the Bus Coupler. Depending on the type of the Bus Coupler and the mapping configuration (e.g. Motorola/Intel format, word alignment etc.) the terminal data are mapped in different ways to the Bus Coupler memory. For parameterizing a terminal, the control and status byte also has to be mapped.

addition to the data bytes. This is always located in the low byte at the offset address of the terminal channel.

Beckhoff-Lightbus bus coupler BK2000

The terminal is mapped in the bus coupler.

C/S

Data H Data L

C/S

Data LData H

C/S

D1 - 1

D1 - 0

0 Offset Terminal1 Channel1 = 0

D0 - 1 C/S - 1 D0 - 0 C/S - 0

Offset Terminal2 Channel2 = 8 User data allocation depending

on mapping Offset Terminal2 Channel1 = 4

KL3302, KL3312

K-Bus

To the bus terminal

BK3000 PROFIBUS coupler

Example for KL3312 (KL3302):

For the BK3000 PROFIBUS coupler, the master configuration should specify for which terminal channels the control and status byte is to be inserted. 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

Profibus bus coupler BK3000

The terminal is mapped in the bus coupler.

Data L Data H

C/S D0 - 1 D1 - 1

C/S - 1

D0 - 0 D1 - 0

C/S - 0

The control-/status byte must be inserted for parameterization.

Offset Terminal2 Channel1 = 6 KL 3302/KL3312 Channel 2 Offset Terminal1 Channel2 = 3 KL 3302/KL3312 Channel1 Offset Terminal1 Channel1 = 0

K-Bus

To the bus terminal

8 KL3311, KL3312, KL3314 and KL3302

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. If the control and status byte is to be used, the KS2000 configuration software is required.

Example for KL3312 (KL3302):

Interbus bus coupler BK4000

The terminal is mapped in the bus coupler.

Data H Data L Data H Data L Data H D0 - 1 D1 - 1 D0 - 0 D1 - 0

The control/status byte must be inserted for parameterization (KS2000).

Offset Terminal2 Channel1 = 6

Offset Terminal2 Channel1 = 4

Offset Terminal1 Channel2 = 2

Offset Terminal1 Channel1 = 0

K-Bus

Other Bus Couplers and further information

Note

Parameterization with KS2000

To the bus terminal

Further information about the mapping configuration of Bus Couplers can be found in the Appendix of the respective Bus Coupler manual under Master configuration.

The Appendix contains an overview of possible mapping configurations depending on the parameters that can be set.

The parameterizations can be carried out independently of the fieldbus system with the KS2000 configuration software via the serial configuration interface in the Bus Coupler.

Different operating modes or functionalities may be set for the complex

terminals. The General Description of Registers explains those register contents that are the same for all complex terminals.

The terminal-specific registers are explained in the following section. Access to the internal terminal registers is described in the Register

Communication section.

Complex terminals that possess a processor are able to exchange data bi-

General Description of Registers

directionally with the higher-level controller. These terminals are referred to below as intelligent Bus Terminals. These include analog inputs, analog outputs, serial interface terminals (RS485, RS232, TTY etc.), counter terminals, encoder interface, SSI interface, PWM terminal and all other parameterizable terminals.

KL3311, KL3312, KL3314 and KL3302 9

The main features of the internal data structure are the same for all the intelligent terminals. This data area is organized as words and comprises 64 registers. The important data and parameters of the terminal can be read and set through this structure. It is also possible for functions to be called by means of corresponding parameters. Each logical channel in an intelligent terminal has such a structure (4-channel analog terminals therefore have 4 sets of registers).

This structure is divided into the following areas:

(A detailed list of all registers can be found in the Appendix.)

0 to 7

8 to 15 16 to 30 31 to 47 48 to 63

Process variables Type register Manufacturer parameters User parameters Extended user area

Process variables

R0 to R7: Registers in the internal RAM of the terminal

The process variables can be used in addition to the actual process image. Their function is specific to the terminal.

R0 to R5: Terminal-specific registers

The function of these registers depends on the respective terminal type (see terminal-specific register description).

R6: Diagnostic register

The diagnostic register can contain additional diagnostic information. Parity errors, for instance, that occur in serial interface terminals during data transmission are indicated here.

R7: Command register

High-Byte_Write = function parameter Low-Byte_Write = function number High-Byte_Read = function result Low-Byte_Read = function number

Type register

R8 to R15: Registers in the internal ROM of the terminal

The type and system parameters are hard programmed by the manufacturer, and the user can read them but cannot change them.

R8: Terminal type

The terminal type in register R8 is needed to identify the terminal.

R9: Software version (X.y)

The software version can be read as a string of ASCII characters.

R10: Data length

R10 contains the number of multiplexed shift registers and their length in bits. The Bus Coupler sees this structure.

R11: Signal channels

Related to R10, this contains the number of channels that are logically present. Thus for example a shift register that is physically present can perfectly well consist of several signal channels.

R12: Minimum data length

The particular byte contains the minimum data length for a channel that is to be transferred. If the MSB is set, the control and status byte is not necessarily required for the terminal function and is not transferred to the control, if the Bus Coupler is configured accordingly.

10 KL3311, KL3312, KL3314 and KL3302

R13: Data type register

Data type register

0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x11 0x12 Structure 1 byte n bytes with variable l ogical channel

0x13 0x14 Structure 1 byte n words with variable l ogical channel

0x15 0x16 Structure 1 byte n double words with variable logical

Terminal with no valid data type Byte array Structure 1 byte n bytes Word array Structure 1 byte n words Double word array Structure 1 byte n double words Structure 1 byte 1 double word Structure 1 byte 1 double word Byte array with variable logical channel length

length (e.g. 60xx) Word array with variable logical channel length

length Double word array with variable logical channel length

channel length

R14: Reserved R15: Alignment bits (RAM)

The alignment bits are used to place the analog terminal in the Bus Coupler on a byte boundary.

Manufacturer parameters

R16 to R30: Manufacturer parameter area (SEEROM)

The manufacturer parameters are specific for each type of terminal. They are programmed by the manufacturer, but can also be modified by the controller. The manufacturer parameters are stored in a serial EEPROM in the terminal, and are retained in the event of voltage drop-out. These registers can only be altered after a code-word has been set in R31.

User parameters

R31 to R47: User parameter area (SEEROM)

The application parameters are specific for each type of terminal. They can be modified by the programmer. The application parameters are stored in a serial EEPROM in the terminal, and are retained in the event of voltage drop-out. The user area is write-protected by a code-word.

R31: Code-word register in RAM

Note

The code-word 0x1235 must be entered here so that parameters in the user area can be modified. If any other value is entered into this register, the write-protection is active. When write protection is not active, the code word is returned when the register is read. If the write protection is active, the register contains a zero value.

R32: Feature register

This register specifies the terminal's operating modes. Thus, for instance, a user-specific scaling can be activated for the analog I/Os.

R33 to R47 Terminal-specific Registers

The function of these registers depends on the respective terminal type (see terminal-specific register description).

Extended application region

R47 to R63

Extended registers with additional functions.

KL3311, KL3312, KL3314 and KL3302 11

Process variables

Manufacturer parameters

Terminal-specific register description

R0: Raw ADC value (X_R)

This register contains the unfiltered ADC value of the connected element according to (Eq. 0.1) (0x0000 corresponds to approx. -125mV, 0x8000 to approx. 0V, 0xFFFF to approx. 125 mV, i.e. gain and offset errors are present)

R1 to R5: Reserved R6: Diagnostic register

High byte: reserved Low byte: status byte

R17: Hardware compensation - offset (B_a)

16 bit signed integer This register is used for offset compensation of the terminal (Eq. 1.2). Register value approx. 0x0000

R18: Hardware compensation - gain (A_a)

This register is used for gain compensation of the terminal (Eq. 1.2). Register value approx. 0x3D4X

R19: Manufacturer scaling - offset (B_h)

16 bit signed integer [0x0000] This register contains the offset of the manufacturer's equation of the straight line (1.6). The straight-line equation is activated via register R32.

R20: Manufacturer scaling - gain (A_h)

16 bits signed integer *2 This register contains the scale factor of the manufacturer's equation of the straight line (1.6). The straight-line equation is activated via register R32.

R21: Manufacturer gain compensation for reference voltage

[approx. 0x01XX]

-8

[0x00A0]

12 KL3311, KL3312, KL3314 and KL3302

User parameters

R32: Feature register

[0x1006] The feature register specifies the terminal's operating mode.

Feature bit

no.

Bit 0 Bit 1

Bit 2

Bit 3

Bit 4

Bit 5 Bit 6

Bit 7 Bit 8 Bit 9

Bit 10

Bit

15,14,13,12

0 0 0 0 0 0 0 1 Type: K 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 0 1 1 1 1 0 0 0 1 0 0 1

1 1 0 1 1 1 1 0 1 1 1 1

Description of the operating mode

1 User scaling (R33, R44) active [0] 1

1 Watchdog timer active [1]

1 Sign / amount representation [0]

1 Siemens output format [0]

1 Activates filter constant in R37 [0] 1

- reserved, do not change! 1 Reference temperature off [0]

- reserved, do not change! 1

Element

Type: L -25°C to 900°C

Type: J -100°C to 1,200°C Type: E -100°C to 1,000°C Type: T -100°C to 400°C Type: N -100°C to 1,300°C Type: U -25°C to 600°C Type: B 600°C to 1,800°C Type: R 0°C to 1,700°C Type: S 0°C to 1,700°C

Output in μV resolution

1 μV* 1.6 μV** ±30 mV 2 μV* 3.2 μV** ±60 mV 4 μV* 6.4 μV** ±120 mV (±80 mV for KL3314)

Manufacturer scaling (R19, R20) active [1]

In the delivery state, the watchdog timer is switched on.

Sign / amount representation is active instead of two's-complement representation. (-1 = 0x8001)

This bit is used for inserting status information on the lowest 3 bits (see below).

Deactivates the measuring current for broken wire detection

Checking of the lower measuring range limit not applicable. [0]

Valid measuring range

-100°C to 1,370°C

Valid measuring range

*) no scaling active

**) only manufacturer scaling active

Examples Bit 15 to 12: 1111, no scaling active:

The output format is as follows: 1 digit corresponds to 1/16 °C or to 4 μV Bit 15 to 12: 1111, manufacturer scaling activated via bit 1 of the feature

KL3311, KL3312, KL3314 and KL3302 13

If the Siemens output format is selected, the lowest three bits are used to

assess the status. The process data is represented in bits 3 to 15, with bit 15 representing the sign bit. Scaling of the measurement reading according to the Siemens standard has to be done via user scaling.

Measured

value

out of range

in range

Bit 15 ... 3

0 0 1 Process data 0 0 0

Bit 2 X

Bit 1 Error

Bit 0 Overflow

R33: User scaling - offset (B_w)

16 bit signed integer This register contains the offset of the user straight-line equation (1.7). The straight-line equation is activated via register R32.

R34: User scaling - gain (A_w)

16 bits signed integer* 2

-8

This register contains the scale factor of the user straight-line equation (1.7) The straight-line equation is activated via register R32.

R35 and R36: reserved R37: Filter constant

[0x0000] This documentation applies to all terminals from software version 3x. The

Note

version number can be found within the serial number on the right-hand side face of the terminal: xxxx3xxx

Example: 52983A2A ⇒ The firmware version is 3A.

Filter constants: First notch [Hz] Conversion time [ms]

0x0000 25 250 0x50 100 65 0xA0 50 125 0x140 25 250 0x280 12.5 500

Control and Status byte

Control byte for process data exchange

Status byte for process data exchange

The control byte is transmitted from the controller to the terminal. The control byte is not used for KL331x and KL3302.

The status byte is transmitted from the terminal to the controller. The status byte contains various status bits for the analog input channel:

status byte: Bit 7 = 0 Bit 6 = 1

bin

: ERROR - general error bit

bin

Bit 5 to bit 2: reserved Bit 1 = 1 Bit 0= 1

: Over range

bin

: Under range

bin

Compensation The terminals are compensated when delivered.

In order to compensate tolerances of the external components, gain and offset registers for compensating the thermocouple voltage are implemented for each channel, i.e. R17 (thermocouple voltage offset) and R18 (thermocouple voltage gain). For compensating the reference point temperature (temperature at the transition between the thermocouple and

14 KL3311, KL3312, KL3314 and KL3302

the terminal contacts), a gain register (R21) is implemented, which is identical for both sets of registers.

Compensation can be carried out as follows: First, the offset is carried out with 0V input voltage, reference temperature

deactivated and linearization switched off. 0xF100 is entered in the feature register. This is followed by gain compensation with a maximum voltage of 125 mV (typical value: 70 mV). For this terminal setting with deactivated manufacturer scaling, the voltage is displayed with 4 μV per digit. Gain and offset compensation of the thermocouple voltage is carried out separately for each channel.

In the next step, the temperature of the reference point is compensated. To this end, a thermocouple has to be selected via the feature register, and reference point temperature compensation must be active (R32 0x1006 type K). With short-circuited inputs (0 V), the temperature of the terminal contacts is determined, and the temperature output by the terminal (measured via an internal temperature sensor) is set accordingly (via R21).

The reference point temperature only has to be calibrated once for each terminal, i.e. R21 is identical for both channels.

: Register mode

bin

If bit 7 of the control byte is set, then the first two bytes of the user data are not used for exchanging process data, but are written into or read from the terminal's register set.

Bit 6=0 Bit 6=1

: read

bin

: write

bin

Bit 6 of the control byte specifies whether a register should be read or written. If bit 6 is not set, then a register is read out without modifying it. The value can then be taken from the input process image.

If bit 6 is set, then the user data is written into a register. As soon as the status byte has supplied an acknowledgement in the input process image, the procedure is completed (see example).

Bit 0 to 5: Address The address of the register that is to be addressed is entered into bits 0 to

5 of the control byte.

Control byte in register mode

MSB

REG=1 W/R A5 A4 A3 A2 A1 A0

REG = 0 REG = 1 W/R = 0 W/R = 1

: Process data exchange

bin

: Access to register structure

bin

: Read register

bin

: Write register

bin

A5...A0 = register address Address bits A5 to A0 can be used to address a total of 64 registers.

KL3311, KL3312, KL3314 and KL3302 15

To the bus coupler

K-Bus

Control-/ status byte

C/S-bit 7

If control bit 6=0: read If control bit 6=1: write

Complex bus te rmina l

Example 1 Reading of register 8 in the BK2000 with a KL3312 and the end terminal:

Example 2 Writing of register 31 in the BK2000 with an intelligent terminal and the end

The control or status byte occupies the lowest address of a logical channel. The corresponding register values are located in the following 2 data bytes. (The BK2000 is an exception: here, an unused (reserved) data byte is automatically inserted after the control or status byte, and the register value is therefore placed on a word boundary).

If the following bytes are transferred from the control to the terminal,

Byte Name Value

Byte 3 Byte 2 Byte 1 Byte 0 DataOUT 1 DataOUT 0 Not used Control byte 0xXX 0xXX 0xXX 0x88

the terminal returns the following type identifier (0x0CF0 corresponds to unsigned integer 3312).

Byte Name Value

Byte 3 Byte 2 Byte 1 Byte 0 DataIN 1 DataIN 0 Not used Status byte 0x0C 0xF0 0x00 0x88

terminal: If the following bytes (code word) are transferred from the control to the terminal,

Byte Name Value

Byte 3 Byte 2 Byte 1 Byte 0 DataOUT 1 DataOUT 0 Not used Control byte 0x12 0x35 0xXX 0xDF

the code word is set, and the terminal returns the register address with bit 7 for register access as acknowledgement.

Byte Name Value

Byte 3 Byte 2 Byte 1 Byte 0 DataIN 1 DataIN 0 Not used Status byte 0x00 0x00 0x00 0x9F

User data

2 or mors bytes

If contr ol bit 7=0: input /output

If control bit 7=1: registerconfiguration

If control bit 7=1: adress in the control bit 0-5

Terminal´s register set 64 words

16 KL3311, KL3312, KL3314 and KL3302

Appendix

Default mapping for: CANopen, CANCAL, DeviceNet, ControlNet, Modbus, RS232, RS485

Default mapping for: PROFIBUS, Interbus

Default mapping for: Lightbus, Ethernet, EtherCAT and Bus Terminal Controller (BCxxxx, BXxxxx)

Legend See KL3312 mapping.

Appendix

Mapping

As already described in the Terminal Configuration section, each Bus Terminal is mapped in the Bus Coupler. In the delivery state, this mapping occurs with the default settings of the Bus Coupler for this terminal. The default setting can be changed with the KS2000 configuration software or with a master configuration software (e.g. TwinCAT System Manager or ComProfibus).

If the terminals are fully evaluated, they occupy memory space in the input and output process image.

The following tables provide information about the terminal mapping, depending on the conditions set in the Bus Coupler.

KL3311

Conditions Word offset High byte Low byte Complete evaluation: no 0 Ch0 D1 Ch0 D0

Motorola format: no 1 - Word alignment: any 2 - 3 - -

Conditions Word offset High byte Low byte Complete evaluation: no 0 Ch0 D0 Ch0 D1 Motorola format: yes 1 - Word alignment: any 2 - 3 - -

Conditions Word offset High byte Low byte Complete evaluation: yes 0 Ch0 D0 Ch0 CB/SB Motorola format: no 1 - Ch0 D1 Word alignment: no 2 - 3 - -

Conditions Word offset High byte Low byte Complete evaluation: yes 0 Ch0 D1 Ch0 CB/SB Motorola format: yes 1 - Ch0 D0 Word alignment: no 2 - 3 - -

Conditions Word offset High byte Low byte Complete evaluation: yes 0 res. Ch0 CB/SB Motorola format: no 1 Ch0 D1 Ch0 D0 Word alignment: yes 2 - 3 - -

Conditions Word offset High byte Low byte Complete evaluation: yes 0 res. Ch0 CB/SB Motorola format: yes 1 Ch0 D0 Ch0 D1 Word alignment: yes 2 - 3 - -

KL3311, KL3312, KL3314 and KL3302 17

Appendix

KL3312 (KL3302)

Default mapping for: CANopen, CANCAL, DeviceNet, ControlNet, Modbus, RS232, RS485

Conditions Word offset High byte Low byte Complete evaluation: no 0 Ch0 D1 Ch0 D0 Motorola format: no 1 Ch1 D1 Ch1 D0 Word alignment: any 2 - 3 - -

Default mapping for: PROFIBUS, Interbus

Conditions Word offset High byte Low byte Complete evaluation: no 0 Ch0 D0 Ch0 D1 Motorola format: yes 1 Ch1 D0 Ch1 D1 Word alignment: any 2 - 3 - -

Conditions Word offset High byte Low byte Complete evaluation: yes 0 Ch0 D0 Ch0 CB/SB Motorola format: no 1 Ch1 CB/SB Ch0 D1 Word alignment: no 2 Ch1 D1 Ch1 D0 3 - -

Conditions Word offset High byte Low byte Complete evaluation: yes 0 Ch0 D1 Ch0 CB/SB Motorola format: yes 1 Ch1 CB/SB Ch0 D0 Word alignment: no 2 Ch1 D0 Ch1 D1 3 - -

Default mapping for: Lightbus, Ethernet, EtherCAT and Bus Terminal Controller (BCxxxx, BXxxxx)

Conditions Word offset High byte Low byte Complete evaluation: yes 0 res. Ch0 CB/SB Motorola format: no 1 Ch0 D1 Ch0 D0 Word alignment: yes 2 res. Ch1 CB/SB 3 Ch1 D1 Ch1 D0

Conditions Word offset High byte Low byte Complete evaluation: yes 0 res. Ch0 CB/SB Motorola format: yes 1 Ch0 D0 Ch0 D1 Word alignment: yes 2 res. Ch1 CB/SB 3 Ch1 D0 Ch1 D1

Legend Complete evaluation:

The terminal is mapped with control and status byte. Motorola format:

Motorola or Intel format can be set. Word alignment:

The terminal is at word limit in the Bus Coupler. Ch n SB: status byte for channel n (appears in the input process image).

Ch n CB: control byte for channel n (appears in the output process image). Ch n D0: channel n, data byte 0 (byte with the lowest value)

Ch n D1: channel n, data byte 1 (byte with the highest value) "-": This byte is not used or occupied by the terminal.

res.: reserved: This byte occupies process data memory, although it is not used.

18 KL3311, KL3312, KL3314 and KL3302

Appendix

KL3314

Default mapping for: CANopen, CANCAL, DeviceNet, ControlNet, Modbus, RS232, RS485

Conditions Word offset High byte Low byte Complete evaluation: no 0 Ch0 D1 Ch0 D0 Motorola format: no 1 Ch1 D1 Ch1 D0 Word alignment: any 2 Ch2 D1 Ch2 D0 3 Ch3 D1 Ch3 D0

Default mapping for: PROFIBUS, Interbus

Conditions Word offset High byte Low byte Complete evaluation: no 0 Ch0 D0 Ch0 D1 Motorola format: yes 1 Ch1 D0 Ch1 D1 Word alignment: any 2 Ch2 D0 Ch2 D1 3 Ch3 D0 Ch3 D1

Conditions Word offset High byte Low byte Complete evaluation: yes 0 Ch0 D0 Ch0 CB/SB Motorola format: no 1 Ch1 CB/SB Ch0 D1 Word alignment: no 2 Ch1 D1 Ch1 D0 3 Ch2 D0 Ch2 CB/SB 4 Ch3 CB/SB Ch2 D1 5 Ch3 D1 Ch3 D0

Conditions Word offset High byte Low byte Complete evaluation: yes 0 Ch0 D1 Ch0 CB/SB Motorola format: yes 1 Ch1 CB/SB Ch0 D0 Word alignment: no 2 Ch1 D0 Ch1 D1 3 Ch2 D1 Ch2 CB/SB 4 Ch3 CB/SB Ch2 D0 5 Ch3 D0 Ch3 D1

Default mapping for: Lightbus, Ethernet, EtherCAT and Bus Terminal Controller (BCxxxx, BXxxxx)

Conditions Word offset High byte Low byte Complete evaluation: yes 0 res. Ch0 CB/SB Motorola format: no 1 Ch0 D1 Ch0 D0 Word alignment: yes 2 res. Ch1 CB/SB 3 Ch1 D1 Ch1 D0 4 res. Ch2 CB/SB 5 Ch2 D1 Ch2 D0 6 res. Ch3 CB/SB 7 Ch3 D1 Ch3 D0

Conditions Word offset High byte Low byte Complete evaluation: yes 0 res. Ch0 CB/SB Motorola format: yes 1 Ch0 D0 Ch0 D1 Word alignment: yes 2 res. Ch1 CB/SB 3 Ch1 D0 Ch1 D1 4 res. Ch2 CB/SB 5 Ch2 D0 Ch2 D1 6 res. Ch3 CB/SB 7 Ch3 D0 Ch3 D1

Legend See KL3312 mapping.

KL3311, KL3312, KL3314 and KL3302 19

Appendix

These registers exist once for each channel.

Address Denomination Default value R/W Storage medium

Raw ADC value variable R RAM

reserved 0x0000 R

...

... ... ...

reserved 0x0000 R

Diagnostic register variable R RAM

Command register not used 0x0000 R

Terminal type 3302/3312 R ROM

Software version number 0x???? R ROM

R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 Hardware compensation: Reference

R22

R30 R31 R32 R33 R34 R35 R36 R37

R63

Multiplex shift register 0x0218/0130 R ROM Signal channels 0x0218 R ROM Minimum data length 0x0098 R ROM Data structure 0x0000 R ROM reserved 0x0000 R Alignment register variable R/W RAM Hardware version number 0x???? R/W SEEROM Hardware compensation: Offset specific R/W SEEROM Hardware compensation: Gain specific R/W SEEROM Manufacturer scaling: Offset 0x0000 R/W SEEROM Manufacturer scaling: Gain 0x00A0 R/W SEEROM

specific R/W SEEROM

temperature reserved 0x0000 R/W SEEROM

...

... ... ... ...

reserved 0x0000 R/W SEEROM Code word register variable R/W RAM Feature register 0x1006 R/W SEEROM User scaling: Offset 0x0000 R/W SEEROM User scaling: Gain 0x0100 R/W SEEROM reserved 0x0000 R/W SEEROM reserved 0x0000 R/W SEEROM reserved 0x0138 R/W SEEROM

...

... ... ... ...

reserved 0x0000 R/W SEEROM

20 KL3311, KL3312, KL3314 and KL3302

Appendix

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KL3311, KL3312, KL3314 and KL3302 21

BECKHOFF KL3311 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual