Beckhoff KL4011 Bedienungsanleitung

Operating instructions for

KL4011 and KL4012

Single- and Two-Channel Analog Output Terminals

Signal range: 0 to 20 mA

and

KL4021 and KL4022

Single- and Two-Channel Analog Output Terminals

Signal range: 4 to 20 mA

Version: 3.1

Date: 2006-10-20

Table of contents

KL401x and KL402x

Table of contents

1. Foreword 1

Notes on the documentation 1

Safety Instructions 2

2. Technical data 3

3. Connection 4

KL4011 and KL4021 4

KL4012 and KL4022 4

4. Functional description 5

5. Terminal configuration 6

6. Register Description 7

General Description of Registers 7

Terminal-specific register description 10

Control and Status byte 12

7. Appendix 14

Mapping 14

Support and Service 17

Foreword

KL401x and KL402x 1

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 described 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 represents 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.

Foreword

2 KL401x and KL402x

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..

Danger

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

Attention

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

environment.

Note

This symbol indicates information that contributes to better understanding.

Technical data

KL401x and KL402x 3

Technical data

KL4011 KL4021 KL4012 KL4022

Number of outputs 1 1 2 2

Power supply 24 V

via the power contacts

(alternatively 15 V

with power supply unit terminal KL9515)

Signal voltage 0 ... 20 mA 4 ... 20 mA 0 ... 20 mA 4 ... 20 mA

Load < 500 Ω(short-circuit-proof)

Accuracy ± 0.5 LSB linearity error, ± 0.5 LSB offset error

±0.1% of the full scale value

Resolution 12 bits

Electrical isolation 500 V

rms

(K-Bus/signal voltage)

Conversion time ~ 1.5 ms

Current consumption from K-

Bus typically 60 mA

Bits width in process image Output: 1 x 16 bits of data

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

(2 x 8 bit control/status optional)

Configuration no address or configuration settings

Weight approx. 80 g

Operating temperature 0°C ... +55°C

Storage temperature -25°C ... +85°C

Relative humidity 95 % no condensation

Vibration / shock resistance according to EN 60068-2-6 / EN 60068-2-27, EN 60068-2-29

EMC resistance burst / ESD according to EN 61000-6-2 (EN 50082) / EN 61000-6-4 (EN 50081)

Installation position any

Protection class IP20

Connection

4 KL401x and KL402x

Connection

KL4011 and KL4021

KL4012 and KL4022

Functional description

KL401x and KL402x 5

Functional description

The analog output terminals

- KL4011 and KL4012 generate signals in the range between 0 and 20 mA.

- KL4021 and KL4022 generate signals in the range between 4 and 20 mA.

with a resolution of 12 bits (4095 increments). The output current is

electrically isolated from the K-Bus.

The supply voltage fed in via the power contacts is used for generating the

output current.

Process data input format In the delivery state, the process data are entered in two's complement

form (integer -1 corresponds to 0xFFFF). Other formats may be selected

via the feature register.

Process data Output current

hexadecimal decimal KL4011, KL4012 KL4021, KL4022

0x0000 (0) 0 mA 4 mA

0x3FFF (16383) 10 mA 12 mA

0x7FFF (32767) 20 mA 20 mA

LED display Both RUN LEDs indicate the operating state of the associated terminal

channels.

Green LED: RUN

•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.

A user-specified voltage will be applied to the output (see feature

Process data The process data arriving from the Bus Coupler are output to the process:

X = PLC process data

B_h, A_h = Manufacturer scaling (R19, R20)

B_w, A_w = User scaling (R33, R34)

Y_dac = output value to the D/A converter

Neither user nor manufacturer scaling are active:

Y_dac = X (1.0)

Manufacturer scaling active:

Y_1 = B_h + A_h * X (1.1)

Y_dac = Y_1

User scaling active:

Y_2 = B_w + A_w * X (1.2)

Y_dac = Y_2

Manufacturer and user scaling active:

Y_1 = B_h + A_h * X (1.3)

Y_dac = B_w + A_w * Y_1 (1.4)

The equations of the straight line are activated via register R32.

Terminal configuration

6 KL401x and KL402x

Terminal configuration

The terminal can be configured and parameterised via the internal register

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 parameterising a terminal,

the control and status byte also has to be mapped.

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

addition to the data bytes. This is always located in the low byte at the

offset address of the terminal channel.

Example for KL4012 and KL4022:

Offset Terminal1 Channel1 = 0

Offset Terminal2 Channel1 = 4

KL4022

Offset Terminal2 Channel2 = 8

User data allocation depending

on mapping

K-B s

Beckhoff-Lightb s

b s co pler

BK2000

To the b s terminal

C/S - 0

D0 - 0

D0 - 1

D1 - 0

D1 - 1 C/S - 1

C/S

Data LData H

Data H Data L

C/S

The terminal is

mapped in the

b s co pler.

BK3000 Profibus coupler 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:

•KL4011 and KL4021: 2 bytes of output data

•KL4012 and KL4022: 4 bytes of output data

Example for KL4012 and KL4022:

Offset Terminal1 Channel1 = 0

Offset Terminal1 Channel2 = 3

Offset Terminal2 Channel1 = 6

KL4022 Channel1

KL4022 Channel 2

The control-/stat s byte

m st be inserted for

parametrization.

K-B s

Profib s b s co pler

BK3000

To the b s terminal

Data H

Data L

D1 - 0

D0 - 0

D0 - 1

D1 - 1

C/S - 0

C/S

C/S - 1

The terminal is

mapped in the

b s co pler.

KL401x and KL402x 7

BK4000 Interbus Coupler The BK4000 Interbus Coupler maps the terminals in the delivery state with

2 bytes per channel:

•KL4011 and KL4021: 2 bytes of output data

•KL4012 and KL4022: 4 bytes of output data

Parameterisation via the fieldbus is not possible. If the control and status

byte is to be used, the KS2000 configuration software is required.

Example for KL4012 and KL4022:

Offset Terminal1 Channel1 = 0

Offset Terminal2 Channel1 = 4

Offset Terminal1 Channel2 = 2

Offset Terminal2 Channel1 = 6

The control/stat s byte

m st be inserted for

parameterization (KS2000).

K-B s

Interb s b s co pler

BK4000

To the b s terminal

D0 - 1

D0 - 0

Data H

D1 - 0

D1 - 1

Data L

The terminal is

mapped in the

b s co pler.

Other Bus Couplers and

further information Further information about the mapping configuration of Bus Couplers can

be found in the Appendix of the respective Bus Coupler manual under

Master configuration.

Note

The Appendix contains an overview of possible mapping configurations

depending on the parameters that can be set.

Parameterisation with

KS2000 The parameterisations 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.

General Description of Registers

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

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

parameterisable terminals.

8 KL401x and KL402x

The main features of the internal data structure are the same for all the

intelligent terminals. This data area is organised 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 Process variables

8 to 15 Type register

16 to 30 Manufacturer parameters

31 to 47 User parameters

48 to 63 Extended user area

Process variables

R0 to R7 Registers in the terminal's internal RAM:

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.

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